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av
ELECTRICAL
AV A
SECTION
B
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS- C TEM
D
CONTENTS
E
SERVICE INFORMATION ........................... 4
PRECAUTIONS .................................................. 4
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" ..................................................................4
PREPARATION .................................................. 5
Commercial Service Tool .........................................5
AUDIO ................................................................ 6
Component Parts and Harness Connector Location ...........................................................................6 System Description ..................................................7 Schematic .............................................................. 10 Wiring Diagram - AUDIO - ...................................... 15 Audio Unit (Base System) Harness Connector Terminal Layout ..................................................... 37 Audio Unit (Mid Level System) Harness Connector Terminal Layout ................................................ 37 Terminal and Reference Value for Audio Unit (Base and Mid Level System) ................................ 37 Audio Unit (Bose System) Harness Connector Terminal Layout ..................................................... 39 Terminal and Reference Value for Audio Unit (BOSE System) ...................................................... 40 BOSE Speaker Amp. Harness Connector Terminal Layout ............................................................... 43 Terminal and Reference Value for BOSE Speaker Amp ........................................................................ 43 Rear Audio Remote Control Unit Harness Connector Terminal Layout .......................................... 45 Terminal and Reference Value for Rear Audio Remote Control Unit ................................................... 45 AV Switch Harness Connector Terminal Layout .... 46 Terminal and Reference Value for AV Switch ........ 47 Satellite Radio Tuner Harness Connector Terminal Layout ............................................................... 48 Terminal and Reference Value for Satellite Radio Tuner ...................................................................... 48 AV Switch Self-Diagnosis Function ........................ 49
Trouble Diagnosis ...................................................49 F
Noise Inspection .....................................................52
Power Supply Circuit Inspection .............................53
Satellite Radio Tuner (Factory Installed) Power
G
and Ground Supply Circuit Inspection ....................54
Satellite Radio Tuner (Factory Installed) Commu-
nication Circuit Inspection .......................................55 Satellite Radio Tuner (Factory Installed) Left
H
Channel Audio Signal Circuit Inspection ................57
Satellite Radio Tuner (Factory Installed) Right Channel Audio Signal Circuit Inspection ................57 I
Steering Switch Check (without bluetooth) .............58
Steering Switch Check (with bluetooth) ..................59
AV Switch Check ....................................................61 J
Audio Communication Line Check (Without NAVI)....61
Audio Communication Line Check (With NAVI) .....62
Sound Is Not Heard from Front Door Speaker or
AV
Front Tweeter (Base and Mid Level System) .........62
Sound Is Not Heard from Rear Speaker or Rear
Tweeter (Base and Mid Level System) ...................63
Sound Is Not Heard from Front Door Speaker or
L
Front Tweeter (BOSE System) ...............................64
Sound Is Not Heard from Rear Speaker or Rear
Tweeter (BOSE System) ........................................67 M
Sound Is Not Heard from Center Speaker (BOSE
System) ..................................................................70
Sound Is Not Heard from Subwoofer (BOSE Sys-
N
tem) ........................................................................70
Removal and Installation ........................................72
AUDIO ANTENNA .............................................78 O
System Description .................................................78 Wiring Diagram - W/ANT - ......................................79 Location of Antenna ................................................80 P Window Antenna Repair .........................................80
DVD ENTERTAINMENT SYSTEM ....................82
Component Parts and Harness Connector Location ..........................................................................82 System Description .................................................82 Schematic ...............................................................84
Revision: August 2007
AV-1
2008 Quest
Wiring Diagram - DVD - ......................................... 85 Trouble Diagnosis .................................................. 91 Power Supply Circuit Inspection ............................ 91 Removal and Installation ....................................... 92
INTEGRATED DISPLAY SYSTEM ................... 94
System Description ................................................ 94 Schematic (With Monochrome Display) ................. 95 Schematic (With Color Display) ............................. 96 Wiring Diagram - INF/D - ....................................... 97 Schematic .............................................................109 Wiring Diagram - COMM - ....................................110 Display Unit (With Monochrome Display) Harness Connector Terminal Layout ..................................113 Terminal and Reference Value for Display Unit (With Monochrome Display) .................................113 Display Unit (With Color Display) Harness Connector Terminal Layout .........................................114 Terminal and Reference Value for Display Unit (With Color Display) ..............................................114 Display Control Unit Harness Connector Terminal Layout ...................................................................116 Terminal and Reference Value for Display Control Unit .......................................................................117 Terminal and Reference Value for BCM ...............119 Terminal and Reference Value for AV Switch ......119 On Board Self-Diagnosis Function (With Monochrome Display Unit) ............................................119 Self-Diagnosis Mode ............................................120 On Board Self-Diagnosis Function (With Color Display) .................................................................122 Self-Diagnosis Mode (DCU) .................................123 Confirmation/Adjustment Mode ............................125 AV Switch Self-Diagnosis Function ......................127 Trouble Diagnosis Chart by Symptom ..................127 Power Supply and Ground Circuit Inspection for Monochrome Display ............................................128 Power Supply and Ground Circuit Inspection for Color Display ........................................................128 Power Supply and Ground Circuit Inspection for Display Control Unit ..............................................130 Power Supply and Ground Circuit Inspection for AV Switch .............................................................131 Vehicle Speed Signal Inspection (With Monochrome Display) ....................................................132 Vehicle Speed Signal Inspection for Display Control Unit .................................................................132 Illumination Signal Inspection (With Monochrome Display) .................................................................133 Illumination Signal Inspection for Display Control Unit .......................................................................134 Ignition Signal Inspection (With Monochrome Display) ......................................................................134 Ignition Signal Inspection for Display Control Unit..134 Audio Communication Line Check (With Monochrome Display) ....................................................134 Audio Communication Line Check (Between Display Control Unit and Audio Unit) .........................136
AV Communication Line Check (With Monochrome Display) ................................................... 138 AV Communication Line Check (Between Display Control Unit and AV Switch) ................................ 138 Display Communication Line Check (Between Display Control Unit and Display Unit) ................. 139 Operating Screen for Audio and A/C Is Not Displayed .................................................................. 141 Color of RGB Image Is Not Proper (All Screens Look Bluish) ......................................................... 141 Color of RGB Image Is Not Proper (All Screens Look Reddish) ...................................................... 142 Color of RGB Image Is Not Proper (All Screens Look Yellowish) .................................................... 143 No Warning Message Is Displayed (Combination Meter Warning Lamp Illuminates) ........................ 144 Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis) ............................................ 144 Previous Vehicle Conditions Are Not Stored ....... 145 CAN Communication Line Check (With Color Display) ..................................................................... 145 Steering Wheel Audio Control Switch Check (Without Bluetooth) .............................................. 145 Steering Switch Check (with bluetooth) ............... 146 Removal and Installation ...................................... 148
NAVIGATION SYSTEM ...................................150
System Description .............................................. 150 CAN Communication System Description ........... 152 Component Parts Location .................................. 153 Schematic ............................................................ 154 Wiring Diagram - NAVI - ...................................... 155 Schematic ............................................................ 162 Wiring Diagram - COMM - ................................... 163 NAVI Control Unit Harness Connector Terminal Layout .................................................................. 166 Terminal and Reference Value for NAVI Control Unit ....................................................................... 166 Terminal and Reference Value for Display Control Unit ....................................................................... 168 Terminal and Reference Value for Display Unit ... 168 Terminal and Reference Value for AV Switch ...... 168 Terminal and Reference Value for BCM .............. 168 On Board Self-Diagnosis Function ....................... 168 Self-Diagnosis Mode (DCU) ................................. 169 Self-Diagnosis Mode (NAVI) ................................ 171 Confirmation/Adjustment Mode ............................ 173 CAN Diagnostic Support Monitor ......................... 179 AV Switch Self-Diagnosis Function ...................... 180 Power Supply and Ground Circuit Inspection for NAVI Control Unit ................................................. 180 Power Supply and Ground Circuit Inspection for Display Control Unit ............................................. 181 Power Supply and Ground Circuit Inspection for Display Unit .......................................................... 181 Power Supply and Ground Circuit Inspection for AV Switch ............................................................. 183 Vehicle Speed Signal Inspection for NAVI Control Unit ....................................................................... 184
Revision: August 2007
AV-2
2008 Quest
Vehicle Speed Signal Inspection for Display Control Unit ................................................................. 185 Illumination Signal Inspection for NAVI Control Unit ....................................................................... 186 Illumination Signal Inspection for Display Control Unit ....................................................................... 186 Ignition Signal Inspection for NAVI Control Unit ... 186 Ignition Signal Inspection for Display Control Uni.t. 187 Reverse Signal Inspection for NAVI Control Unit.. 187 Reverse Signal Inspection for Display Control Unit
.. 187 AV Communication Line Check (Between Display Control Unit and NAVI Control Unit) ..................... 188 Audio Communication Line Check (Between Display Control Unit and Audio Unit) ......................... 189 Display Communication Line Check (Between Display Control Unit and Display Unit) ................. 190 AV Communication Line Check (Between Display Control Unit and AV Switch) ................................. 192 CAN Communication Line Check ......................... 193 If NAVI control unit detects that DVD-ROM map Is not inserted .......................................................... 193 If NAVI control unit detects that inserted DVDROM map Is malfunctioning or if it Is impossible to load data from DVD-ROM map ............................ 193 If Connection Between NAVI Control Unit and GPS Antenna Is Malfunctioning ........................... 194 Operating Screen for Audio and A/C Is Not Displayed When Showing NAVI Screen .................... 194 Color of RGB Image Is Not Proper (Only NAVI Screen Looks Bluish) ........................................... 195 Color of RGB Image Is Not Proper (Only NAVI Screen Looks Reddish) ........................................ 196 Color of RGB Image Is Not Proper (Only NAVI Screen Looks Yellowish) ...................................... 197 Color of RGB Image Is Not Proper (All Screens Look Bluish) ......................................................... 197 Color of RGB Image Is Not Proper (All Screens Look Reddish) ...................................................... 198
Color of RGB Image Is Not Proper (All Screens
Look Yellowish) ....................................................199 A
NAVI Screen Is Rolling .........................................200
Guide Sound Is Not Heard ...................................201
Screen Is Not Shown ............................................202 B A/C Screen Is Not Shown (NAVI Screen Is
Shown) .................................................................202
FUEL ECONOMY Screen Is Not Shown ..............203
Average Fuel Economy Display Is Not Shown ("
C
*** " Is Shown) ......................................................203
Distance to Empty Display Is Not Shown (" *** " Is
Shown) .................................................................203 D
Driving Distance or Average Speed Display Is Not
Shown (" *** " Is Shown) .......................................203
No Warning Message Is Displayed (Combination
E
Meter Warning Lamp Illuminates) .........................204
Unable to Operate All of AV Switches (Unable to
Start Self-Diagnosis) .............................................204 Navigation System Does Not Activate ..................205 F
Previous NAVI Conditions Are Not Stored ...........205
Previous Vehicle Conditions Are Not Stored ........205
Position of Current Location Mark Is Not Correct ..205 G
Radio Wave from GPS Satellite Is Not Received ..205
Driving Test ..........................................................206
Example of Symptom Judged Not Malfunction .....206 H Program Loading of NAVI Control Unit .................215
Removal and Installation ......................................215
TELEPHONE ................................................... 217 I
Component Parts and Harness Connector Loca-
tion ........................................................................217
System Description ...............................................217 J
Wiring Diagram - H/PHON - .................................219
Bluetooth Control Unit Harness Connector Termi-
nal Layout .............................................................221 AV Terminal and Reference Value for Bluetooth Con-
trol Unit .................................................................221
Bluetooth Control Unit Self-Diagnosis Function ...222
Power Supply and Ground Circuit Inspection for
L
Bluetooth Control Unit ..........................................222
Removal and Installation ......................................223
M
N
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P
Revision: August 2007
AV-3
2008 Quest
PRECAUTIONS
< SERVICE INFORMATION >
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001719363
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.
WARNING: · To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. · Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SRS section. · Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
Revision: August 2007
AV-4
2008 Quest
< SERVICE INFORMATION >
PREPARATION
Commercial Service Tool
Tool name Power tool
PREPARATION
Description Loosening bolts and nuts
A
INFOID:0000000001719364
B
C
D
PBIC0191E
E
F
G H
I
J
AV
L
M
N
O
P
Revision: August 2007
AV-5
2008 Quest
< SERVICE INFORMATION >
AUDIO
AUDIO
Component Parts and Harness Connector Location
INFOID:0000000001719365
WKIA5227E
1. Front tweeter LH M109
4. Display unit M93
7. Front tweeter RH M111
10. Audio unit M43, M44, M45, M46, M127, M252
13. Rear speaker LH, RH B45, B131
16. Front door speaker LH, RH D3, D103
2. Combination meter M24
5. Center speaker (with BOSE) M110
8. Satellite radio tuner (if equipped) M128, M129
11. AV switch M98
14. Rear tweeter LH D516
17. Subwoofer (with BOSE, driver seat view) B11
3. Combination switch (spiral cable) M30, M102
6. Display control unit (with color display) M94, M95
9. Steering wheel audio control switches
12. BOSE speaker amp (with BOSE) M112, M113
15. Rear tweeter RH D506
18. Rear audio remote control unit (if equipped) B23
Revision: August 2007
AV-6
2008 Quest
AUDIO
< SERVICE INFORMATION >
System Description
BASE SYSTEM
Refer to Owner's Manual for audio system operating instructions. Power is supplied at all times · through 20A fuse [No. 31, located in the fuse and fusible link box] · to audio unit terminal 6 and · through 15A fuse [No. 19, located in the fuse block (J/B)] · to AV switch terminal 1 and · to display unit terminal 1. With the ignition switch in the ACC or ON position, power is supplied · through 10A fuse [No. 4, located in the fuse block (J/B)] · to audio unit terminal 10 and · to AV switch terminal 2 and · to display unit terminal 2. With the ignition switch in the ON or START position, power is supplied · through 10A fuse [No. 12, located in the fuse block (J/B)] · to display unit terminal 3. Ground is supplied through the case of the audio unit. Ground is also supplied · to AV switch terminal 5 and · to display unit terminal 6 · through body grounds M57, M61 and M79. Then audio signals are supplied · through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16 · to terminals + and - of front door speaker LH and RH · to terminals + and - of front tweeter LH and RH · to terminals + and - of rear speaker LH and RH · to terminals + and - of rear tweeter LH and RH.
INFOID:0000000001719366
A B C D E F G H I
Rear Audio Remote Control Unit (If Equipped)
Power is supplied
· from audio unit terminal 32
J
· to rear audio remote control unit terminal 13.
Ground is supplied
· to rear audio remote control unit terminal 15 · through body grounds B7 and B19.
AV
Audio signals are supplied
· through audio unit terminals 26, 27, 28 and 29
· to terminals 1, 2, 3 and 4 of rear audio remote control unit.
L
MID LEVEL SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times
M
· through 20A fuse [No. 31, located in the fuse and fusible link box]
· to audio unit terminal 6 and
· through 15A fuse [No. 19, located in the fuse block (J/B)]
N
· to AV switch terminal 1 and
· to display unit terminal 1 (with monochrome display) or display control unit terminal 1 (with color display).
With the ignition switch in the ACC or ON position, power is supplied
· through 10A fuse [No. 4, located in the fuse block (J/B)]
O
· to audio unit terminal 10 and
· to AV switch terminal 2 and
· to display unit terminal 2 (with monochrome display) or display control unit terminal 10 (with color display). P
With the ignition switch in the ON or START position, power is supplied
· through 10A fuse [No. 12, located in the fuse block (J/B)]
· to display unit terminal 3 (with monochrome display) or display control unit terminal 12 (with color display).
Ground is supplied through the case of the audio unit.
Ground is also supplied
· to AV switch terminal 5 and
· to display unit terminal 6 (with monochrome display) or display control unit terminal 3 (with color display).
Revision: August 2007
AV-7
2008 Quest
AUDIO
< SERVICE INFORMATION >
· through body grounds M57, M61 and M79. Then audio signals are supplied · through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16 · to terminals + and - of front door speaker LH and RH · to terminals + and - of front tweeter LH and RH · to terminals + and - of rear speaker LH and RH · to terminals + and - of rear tweeter LH and RH.
Steering Wheel Audio Control Switches When one of steering wheel audio control switches is pushed, the resistance in steering switch circuit changes depending on which button is pushed.
Rear Audio Remote Control Unit (If Equipped)
Power is supplied · from audio unit terminal 32 · to rear audio remote control unit terminal 13. Ground is supplied · to rear audio remote control unit terminal 15 · through body grounds B7 and B19. Audio signals are supplied · through audio unit terminals 26, 27, 28 and 29 · to terminals 1, 2, 3 and 4 of rear audio remote control unit.
Speed Sensitive Volume System (If Equipped) Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control level can be selected by the customer. Refer to Owner's Manual for operating instructions.
BOSE® SYSTEM
Refer to Owner's Manual for audio system operating instructions. Power is supplied at all times · through 15A fuse [No. 18, located in the fuse block (J/B)] · to subwoofer terminal 6 · through 20A fuse [No. 31, located in the fuse and fusible link box] · to audio unit terminal 6 and · to BOSE speaker amp. terminal 1 · through 15A fuse [No. 19, located in the fuse block (J/B)] · to AV switch terminal 1 and · to display control unit terminal 1. With the ignition switch in the ACC or ON position, power is supplied · through 10A fuse [No. 4, located in the fuse block (J/B)] · to audio unit terminal 10 and · to AV switch terminal 2 and · to display control unit terminal 10. With the ignition switch in the ON or START position, power is supplied · through 10A fuse [No. 12, located in the fuse block (J/B)] · to display control unit terminal 12. Ground is supplied through the case of the audio unit. Ground is also supplied · to subwoofer terminal 5 · through body grounds B7 and B19 and · to BOSE speaker amp. terminal 17 · to AV switch terminal 5 · to display unit terminal 1 and · to display control unit terminal 3 · through body grounds M57, M61 and M79. Then audio signals are supplied · through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16 · to BOSE speaker amp. terminals 23, 24, 25, 26, 27, 28, 29 and 30. Audio signals are amplified by the BOSE speaker amp. The amplified audio signals are supplied · through BOSE speaker amp. terminals 2, 3, 9,10,11,12, 13, 14, 15, 16, 18 and 19 · to terminals + and - of front door speaker LH and RH · to terminals + and - of front tweeter LH and RH
Revision: August 2007
AV-8
2008 Quest
AUDIO
< SERVICE INFORMATION >
· to terminals + and - of center speaker
· to terminals + and - of rear speaker LH and RH
A
· to terminals + and - of rear tweeter LH and RH and
· to terminals 1 and 2 of subwoofer.
Steering Wheel Audio Control Switches
B
When one of steering wheel audio control switches is pushed, the resistance in steering switch circuit changes
depending on which button is pushed.
Rear Audio Remote Control Unit
C
Power is supplied
· from audio unit terminal 32
· to rear audio remote control unit terminal 13.
D
Ground is supplied
· to rear audio remote control unit terminal 15
· through body grounds B7 and B19.
Audio signals are supplied
E
· through audio unit terminals 26, 27, 28 and 29
· to terminals 1, 2, 3 and 4 of rear audio remote control unit.
Speed Sensitive Volume System
F
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control
level can be selected by the customer. Refer to Owner's Manual for operating instructions.
Satellite Radio Tuner (Factory Installed)
G
NOTE:
Factory installed satellite radio systems may be identified by the location of the satellite radio tuner antenna.
Factory installed satellite radio antennas are installed on the front of the roof and dealer installed antennas are H
installed on the rear of the roof.
Power is supplied at all times
· through 20A fuse [No. 31, located in the fuse and fusible link box] · to satellite radio tuner terminal 32.
I
With the ignition switch in the ACC or ON position, power is supplied
· through 10A fuse [No. 4, located in the fuse block (J/B)]
· to satellite radio tuner terminal 36.
J
Radio signals are supplied from the satellite radio antenna to satellite radio tuner terminal 37.
Audio signals are supplied
· through satellite radio tuner terminals 21, 22, 23 and 24
AV
· to terminals 41, 42, 43 and 44 of audio unit.
Ground is supplied through the case of the satellite radio tuner.
L
M
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P
Revision: August 2007
AV-9
2008 Quest
< SERVICE INFORMATION >
Schematic
BASE SYSTEM
AUDIO
INFOID:0000000001719367
Revision: August 2007
AV-10
ALNWA0169GB
2008 Quest
AUDIO
< SERVICE INFORMATION > MID LEVEL SYSTEM (WITH MONOCHROME DISPLAY)
Revision: August 2007
AV-11
A B C D E F G H I J AV L M N O
ALNWA0170GB
P
2008 Quest
AUDIO
< SERVICE INFORMATION > MID LEVEL SYSTEM (WITH COLOR DISPLAY)
Revision: August 2007
AV-12
ALNWA0171GB
2008 Quest
AUDIO
< SERVICE INFORMATION > BOSE SYSTEM (WITH MONOCHROME DISPLAY)
Revision: August 2007
AV-13
A B C D E F G H I J AV L M N O
ALNWA0172GB
P
2008 Quest
< SERVICE INFORMATION > BOSE SYSTEM
AUDIO
Revision: August 2007
AV-14
ALNWA0173GB
2008 Quest
< SERVICE INFORMATION >
Wiring Diagram - AUDIO -
BASE SYSTEM
AUDIO
Revision: August 2007
AV-15
INFOID:0000000001719368
A B C D E F G H I J AV L M N O P
ALNWA0174GB
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-16
WKWA4738E
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-17
A B C D E F G H I J AV L M N O
WKWA4739E
P
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-18
ALNWA0175GB
2008 Quest
< SERVICE INFORMATION > MID LEVEL SYSTEM
AUDIO
Revision: August 2007
AV-19
A B C D E F G H I J AV L M N O
ALNWA0176GB
P
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-20
WKWA3159E
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-21
A B C D E F G H I J AV L M N O
WKWA4742E
P
2008 Quest
< SERVICE INFORMATION > WITH MONOCHROME DISPLAY
AUDIO
Revision: August 2007
AV-22
ALNWA0177GB
2008 Quest
< SERVICE INFORMATION > WITH COLOR DISPLAY
AUDIO
Revision: August 2007
AV-23
A B C D E F G H I J AV L M N O
ALNWA0178GB
P
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-24
ALNWA0179GB
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-25
A B C D E F G H I J AV L M N O
ALNWA0180GB
P
2008 Quest
< SERVICE INFORMATION > BOSE SYSTEM
AUDIO
Revision: August 2007
AV-26
ALNWA0181GB
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-27
A B C D E F G H I J AV L M N O
ALNWA0182GB
P
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-28
WKWA4749E
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-29
A B C D E F G H I J AV L M N O
WKWA4750E
P
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-30
WKWA4751E
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-31
A B C D E F G H I J AV L M N O
WKWA4752E
P
2008 Quest
< SERVICE INFORMATION > WITH MONOCHROME DISPLAY
AUDIO
Revision: August 2007
AV-32
ALNWA0183GB
2008 Quest
< SERVICE INFORMATION > WITH COLOR DISPLAY
AUDIO
Revision: August 2007
AV-33
A B C D E F G H I J AV L M N O
ALNWA0184GB
P
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-34
ALNWA0185GB
2008 Quest
< SERVICE INFORMATION >
AUDIO
Revision: August 2007
AV-35
A B C D E F G H I J AV L M N O
ALNWA0186GB
P
2008 Quest
< SERVICE INFORMATION > SATELLITE RADIO TUNER
AUDIO
Revision: August 2007
AV-36
ALNWA0187GB
2008 Quest
AUDIO
< SERVICE INFORMATION >
Audio Unit (Base System) Harness Connector Terminal Layout
INFOID:0000000001719369
A
B
Audio Unit (Mid Level System) Harness Connector Terminal Layout
C
WKIA5202E
D
INFOID:0000000001719370
E
F
G
AWNIA0854ZZ
Terminal and Reference Value for Audio Unit (Base and Mid Level System)
H
INFOID:0000000001719371
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
Reference value (Approx.)
I
Example of symptom
J
2 (L/W)
1 (L/R)
Audio sound signal front Output LH
ON
Receive audio signal
4 (W/B)
3 (L/B)
Audio sound signal front Output RH
ON
Receive audio signal
AV
No sound from front
door speaker LH or
tweeter LH.
L
SKIA0177E
M
No sound from front
door speaker RH or
N
tweeter RH.
5 (G/W) Ground 6 (Y) Ground
Antenna signal
Output
Battery power
Input
7 (R/Y) Ground
Illumination control signal
Input
ON
Illumination control switch ON is operated by lighting switch in 1st position.
SKIA0177E
O
More than 10V
Poor radio reception.
Battery voltage
System does not
P
work properly.
Changes between 0 and 12V
Audio unit illumination cannot be controlled.
Revision: August 2007
AV-37
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal (Wire color)
+
8 (R/L) Ground
10 (V) Ground
Item
Illumination signal ACC signal
Signal input/ output
Input
Input
Condition
Ignition switch
Operation
OFF
Lighting switch is in 1st position.
Lighting switch is OFF.
ON
Ignition switch ACC or ON
14 (G)
Audio sound 13 (B/Y) signal rear Output
LH
ON
Receive audio signal
16 (L)
Audio sound 15 (R/G) signal rear Output
RH
ON
Receive audio signal
21 (BR)
Ground
Remote control A
22 (W)
Ground
Remote control B
23 (W/R)
Ground
Remote control C
24 (Y/B) 25 (Y)
Ground
Remote control D
Remote
control
ground
Output ON Audio unit ON
Output ON Audio unit ON
Output ON Audio unit ON
Output ON Audio unit ON
Reference value (Approx.)
Battery voltage 3V or less
Battery voltage
Example of symptom
Audio unit illumination does not come on when lighting switch is in 1st position.
System does not work properly.
No sound from rear speaker LH or rear tweeter LH.
SKIA0177E
No sound from rear speaker RH or rear tweeter RH.
SKIA0177E
Rear audio remote
5V
control unit does not
operate properly.
Rear audio remote
5V
control unit does not
operate properly.
Rear audio remote
5V
control unit does not
operate properly.
Rear audio remote
5V
control unit does not
operate properly.
Rear audio remote
0V
control unit switches
do not function.
27 (W)
26 (B)
Audio sound signal LH
Output
ON
Receive audio signal
No sound from LH headphone channel.
SKIA0177E
29 (G)
28 (R)
Audio sound signal RH
Output
ON
Receive audio signal
Revision: August 2007
AV-38
No sound from RH headphone channel.
SKIA0177E
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
30
Shield
Remote 31 (Y/G) Ground control en- Output ON Audio unit ON
able signal
Remote
32 (Y/R)
Ground
control switch pow-
Output
ON
Audio unit ON
er supply
65 (B/R) Ground Audio RX
Input
ON
Operate audio volume
Reference value (Approx.)
0V
5V Battery voltage
A
Example of symptom
Interference and dis- B
tortion heard from
headphones or rear
audio remote control unit switches not op-
C
erating properly.
Rear audio remote
control unit does not D
operate.
Rear audio remote control unit does not
E
operate.
F
Audio information
does not display properly.
G
SKIA4403E
H
66 (BR) Ground Audio TX
Output
ON
Operate audio volume
SKIA4402E
67
Shield
0V
*1 With satellite radio tuner *2 With pre-wiring for satellite radio tuner
Audio Unit (Bose System) Harness Connector Terminal Layout
Audio information
I
does not display
properly.
J
Interference and dis-
tortion heard from
AV
speakers.
L
INFOID:0000000001719372
M
N
O
WKIA5225E
P
Revision: August 2007
AV-39
2008 Quest
AUDIO
< SERVICE INFORMATION >
Terminal and Reference Value for Audio Unit (BOSE System)
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
Reference value (Approx.)
INFOID:0000000001719373
Example of symptom
2 (W)
1 (B)
Audio sound signal front Output LH
ON
Receive audio signal
No sound from front door speaker LH or tweeter LH.
SKIA0177E
4 (V)
3 (LG)
Audio sound signal front Output RH
ON
Receive audio signal
No sound from front door speaker RH or tweeter RH.
5 (G/W) Ground 6 (Y) Ground
7 (R/Y) Ground
8 (R/L) Ground
10 (V) Ground
11
12 (G/W) Ground
Antenna signal
Output
Battery power
Input
Illumination control signal
Input
Illumination signal
Input
ACC signal Input
Shield
Amp. ON signal
Output
ON ON
OFF ON ON
Illumination control switch is operated by lighting switch in 1st position.
Lighting switch is in 1st position.
SKIA0177E
More than 10V Battery voltage Changes between 0 and 12V
Battery voltage Battery voltage
0V More than 6.5V
Poor radio reception.
System does not work properly.
Audio unit illumination cannot be controlled.
Audio unit illumination does not come on when lighting switch is in 1st position.
System does not work properly.
Interference and distortion heard from speakers.
Amp. does not work properly.
14 (BR)
Audio sound 13 (B/R) signal rear Output
LH
ON
Receive audio signal
No sound from rear speaker LH or rear tweeter LH.
SKIA0177E
Revision: August 2007
AV-40
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
16 (L)
Audio sound 15 (B/W) signal rear Output
RH
ON
Receive audio signal
21 (BR)
Ground
Remote control A
22 (W)
Ground
Remote control B
23 (W/R)
Ground
Remote control C
24 (Y/B)
Ground
Remote control D
25 (Y)
Remote
control
ground
Output ON Audio unit ON
Output ON Audio unit ON
Output ON Audio unit ON
Output ON Audio unit ON
27 (W)
26 (B)
Audio sound signal LH
Output
ON
Receive audio signal
29 (G)
28 (R)
Audio sound signal RH
Output
ON
Receive audio signal
30
Shield
Remote 31 (Y/G) Ground control en- Output ON Audio unit ON
able signal
Remote
32 (Y/R)
Ground
control switch pow-
Output
ON
Audio unit ON
er supply
Revision: August 2007
AV-41
Reference value (Approx.)
A
Example of symptom
B
No sound from rear
speaker RH or rear
C
speaker RH.
SKIA0177E
D
Rear audio remote
5V
control unit does not
operate properly.
E
Rear audio remote
5V
control unit does not
operate properly.
F
Rear audio remote
5V
control unit does not
operate properly.
G
Rear audio remote
5V
control unit does not
operate properly.
Rear audio remote
H
0V
control switches do
not function.
I
No sound from LH
J
headphone channel.
SKIA0177E
AV
L
No sound from RH headphone channel.
M
SKIA0177E
Interference and dis-
tortion heard from
N
0V
headphones or rear audio remote control
unit switches not operating properly.
O
Rear audio remote
5V
control unit does not
operate.
P
Battery voltage
Rear audio remote control unit does not operate.
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
42 (R)
41 (G)
Audio signal LH
Input
Receive satellite ON radio tuner sig-
nal.
44 (B)
43 (W)
Audio signal RH
Input
Receive satellite ON radio tuner sig-
nal.
45
Shield
46
ON
48 (L)
Ground
REQ1 (AUDIOSAT)
Input
ON
Set to the satellite radio mode
49 (V) *1 (W/R) *2
Ground
Communication signal (AUDIOSAT)
Input
ON
Set to the satellite radio mode
50 (LG) *1 (B/R) *2
Ground
Communication signal (SAT-AUDIO)
Output
ON
Set to the satellite radio mode
Reference value (Approx.)
Example of symptom
No sound on LH channel when satellite radio signal is received.
SKIB3609E
No sound on RH channel when satellite radio signal is received.
SKIB3609E
Approx. 0 V
SKIB3825E
SKIB3824E
SKIB3826E
65 (B/R) Ground Audio RX
Input ON
Operate audio volume
Audio does not operate properly.
SKIA4403E
Revision: August 2007
AV-42
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
Reference value (Approx.)
A
Example of symptom
B
66 (BR) Ground Audio TX Output ON
Operate audio volume
Audio does not oper- C
ate properly.
67
Shield
ON
0V
*1 With satellite radio tuner *2 With pre-wiring for satellite radio tuner
BOSE Speaker Amp. Harness Connector Terminal Layout
SKIA4402E
D
Interference and dis-
tortion heard from
speakers.
E
F
INFOID:0000000001719374
G
H
Terminal and Reference Value for BOSE Speaker Amp
I
WKIA5204E
INFOID:0000000001719375
J
Terminal (wire color)
Item
+
1 (Y) Ground Battery
Signal input/ output
Condition
Ignition switch
Operation
Input
9 (G)
Rear speaker 10 (B/Y) LH and rear
tweeter LH
Output
ON
Receive audio signal
Reference value (Approx.)
Battery voltage
AV
Example of symptom
L
System does not work properly.
M
No sound from rear
speaker LH or rear
tweeter LH.
N
SKIA0177E
O
11 (L)
Rear speaker 12 (R/G) RH and rear
tweeter RH
Output
ON
Receive audio signal
No sound from rear P
speaker RH or rear tweeter RH.
SKIA0177E
Revision: August 2007
AV-43
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal (wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
13 (L/W)
14 (L/R)
Front door speaker LH and front tweeter LH
Output
ON
Receive audio signal
15 (W/B)
16 (L/B)
Front door speaker RH and front tweeter RH
Output
ON
Receive audio signal
17 (B) Ground Ground
ON
Reference value (Approx.)
Example of symptom
No sound from front door speaker LH or front tweeter LH.
SKIA0177E
No sound from front door speaker RH or front tweeter RH.
SKIA0177E
18 (O)
2 (O/B)
Center speaker
Output
ON
Receive audio signal
No sound from center speaker.
SKIA0177E
19 (W)
3 (G) Subwoofer
Output
ON
Receive audio signal
22 (LG/R)
Ground
Subwoofer ON signal
Input
ON
24 (L)
23 (B/W)
Audio sound signal rear RH
Input
ON
Receive audio signal
26 (BR)
25 (B/R)
Audio sound signal rear LH
Input
ON
Receive audio signal
No sound from subwoofer.
SKIA0177E
More than 6.5V
Subwoofer does not work properly.
No sound from rear speaker RH or rear tweeter RH.
SKIA0177E
No sound from rear speaker LH or rear tweeter LH.
SKIA0177E
Revision: August 2007
AV-44
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal (wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
28 (V)
27 (LG)
Audio sound signal front RH
Input
ON
Receive audio signal
Reference value (Approx.)
Example of
A
symptom
B
No sound from
front door speaker
C
RH or front tweeter
RH.
SKIA0177E
D
30 (W)
29 (B)
Audio sound signal front LH
Input
ON
Receive audio signal
31 (G/W) Ground
Amp. ON signal
Input
ON
SKIA0177E
More than 6.5V
Rear Audio Remote Control Unit Harness Connector Terminal Layout
No sound from
E
front door speaker
LH or front tweeter
LH.
F
System does not
work properly.
G
INFOID:0000000001719376
H
I
J
Terminal and Reference Value for Rear Audio Remote Control Unit
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
Reference value (Approx.)
WKIA5205E
AV
INFOID:0000000001719377
L
Example of symptom
M
2 (W)
1 (B)
Audio sound signal LH
Input
ON
Receive audio signal
N
No sound from LH headphone channel.
O
SKIA0177E
P
4 (G)
3 (R)
Audio sound signal RH
Input
ON
Receive audio signal
No sound from RH headphone channel.
Revision: August 2007
AV-45
SKIA0177E
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
5
Shield
6 (R/L) Ground Illumination Input
7 (W) 8 (Y/G)
Ground
Remote control ground
Remote control enable signal
9 (B)
Ground
Remote control A
Input Input
ON
Lighting switch ON
ON Audio unit ON
ON Audio unit ON
10 (W)
Ground
Remote control B
Input ON Audio unit ON
11 (G/R)
Ground
Remote control C
Input ON Audio unit ON
12 (Y/B)
Ground
Remote control D
Input ON Audio unit ON
13 (Y/R) 15 (B)
Ground
Remote control switch power supply
Ground
Input
ON Audio unit ON ON
AV Switch Harness Connector Terminal Layout
Reference value (Approx.)
0V
Battery voltage 0V 5V 5V 5V 5V 5V
Battery voltage 0V
Example of symptom
Interference and distortion heard from headphones or rear audio remote control unit switches not operating properly.
Rear audio remote control unit does not illuminate.
Rear audio remote control unit switches do not function.
Rear audio remote control unit does not operate.
Rear audio remote control unit does not operate properly.
Rear audio remote control unit does not operate properly.
Rear audio remote control unit does not operate properly.
Rear audio remote control unit does not operate properly.
Rear audio remote control does not operate.
INFOID:0000000001719378
WKIA5206E
Revision: August 2007
AV-46
2008 Quest
AUDIO
< SERVICE INFORMATION >
Terminal and Reference Value for AV Switch
INFOID:0000000001719379
A
Terminal No. (Wire color)
+
Signal
Condition
Item
input/
output Ignition
switch
Operation
Voltage (Approx.)
Example of
B
symptom
1 (Y/R) Ground Battery power Input OFF
Battery voltage
System does not C
work properly.
2 (V) Ground ACC signal Input
3 (R/L)
Ground
Illumination signal
Input
ACC
OFF
Lighting switch is ON (position 1).
Turn lighting switch OFF.
Battery voltage Battery voltage Approx. 3.0V or less
System does not
work properly.
D
AV switch illumi-
nation does not
come on when
lighting switch is E
ON (position 1).
4 (R/Y)
Ground
Illumination control signal
Input
ON
Illumination control switch is operated by lighting switch in
1st position.
Changes between 0 and 12V.
AV switch illumination cannot be controlled.
F
5 (B) Ground Ground
ON
0V
G
6 (V)
Ground
Communication signal (+)
Input/ output
ON
7
Shield ground
8 (LG)
Ground
Communication signal (-)
Input/ output
ON
12 (R) *1 (V) *2
Ground
Remote control A
Input
13 (G) *1 (G/O) *2
Ground
Remote control B
Input
14 (B/Y) *1 (R/B) *2
Remote control ground
*1 Without bluetooth control unit *2 With bluetooth control unit
Revision: August 2007
Press MODE switch
Press SEEK UP switch
ON Press VOL UP switch
Except for above
Press POWER switch
Press SEEK DOWN
ON
switch
Press VOL DOWN switch
Except for above
AV-47
System does not H
work properly.
I
SKIA0175E
J
System does not AV
work properly.
SKIA0176E
L
0V
0.75V 2V 5V
Steering wheel
M
audio controls
do not function.
N
0V 0.75V
2V 5V
O
Steering wheel audio controls do not function.
P
Steering wheel audio controls do not function.
2008 Quest
AUDIO
< SERVICE INFORMATION >
Satellite Radio Tuner Harness Connector Terminal Layout
INFOID:0000000001719380
Terminal and Reference Value for Satellite Radio Tuner
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
22 (R) 21 (G) Audio signal LH
Output ON Receive audio signal.
24 (B) 23 (W) Audio signal RH
Output ON Receive audio signal.
25
Shield
26
28 (L)
Ground
REQ1 (SAT-AUDIO)
ON
Output
ON
Set to the satellite radio mode
29 (V) *1 (W/R) *2
Ground
Communication signal (SAT-AUDIO)
Output
ON
Set to the satellite radio mode
WKIA5207E INFOID:0000000001719381
Voltage (approx.)
SKIB3609E
SKIB3609E
Approx. 0 V
SKIB3825E
SKIB3824E
Revision: August 2007
AV-48
2008 Quest
< SERVICE INFORMATION >
Terminal (Wire color)
Item
+
AUDIO
Signal input/ output
Ignition switch
Condition Operation
Voltage
A
(approx.)
B
30 (LG) *1 (B/R) *2
Ground
Communication signal (AUDIO-SAT)
Input
ON
Set to the satellite radio mode
C
32 (Y)
Battery power supply
OFF
Ground
-
36 (V)
ACC power supply
Input ACC
37
Antenna signal
*1 With satellite radio tuner *2 With pre-wiring for satellite radio tuner
AV Switch Self-Diagnosis Function
SKIB3826E
D
Battery voltage
E
F
INFOID:0000000001719382
It can check ON/OFF operation of each switch in the AV switch and diagnose the input signals from the steer- G ing switch.
STARTING THE SELF-DIAGNOSIS MODE
1. Turn ignition switch from OFF to ACC.
H
2. While pressing the "4" switch, turn the volume control dial clock-
wise or counterclockwise for 30 clicks or more. (When the self-
diagnosis mode is started, a short beep will be heard.) If unable
I
to start self-diagnosis mode refer to AV-138, "AV Communica-
tion Line Check (With Monochrome Display)".
3. Press each switch and listen for beep.
J
WKIA5232E
AV
EXITING THE SELF-DIAGNOSIS MODE
· Turn ignition switch OFF. Then the self-diagnosis ends.
L
DIAGNOSIS FUNCTION
· It can check for continuity of the switches by sounding a beep when each AV switch and steering switch is
pressed.
M
· It can check for continuity of harness between AV switch and steering switch.
Trouble Diagnosis
INFOID:0000000001719383
N
The majority of audio concerns are the result of outside causes (bad CD, electromagnetic interference, etc.).
Check the inspection items below to diagnose the malfunction.
MALFUNCTION WITH RADIO AND CD (BASE AND MID LEVEL SYSTEM)
O
P
Revision: August 2007
AV-49
2008 Quest
< SERVICE INFORMATION >
AUDIO
Symptom
Inoperative
Steering switch does not operate Audio screen is not shown All speakers do not sound One or several speakers do not sound Poor sound Noisy
Possible cause
· Audio unit power circuit check. Refer to AV-53, "Power Supply Circuit Inspection".
· Audio communication line check. Refer to AV-134, "Audio Communication Line Check (With Monochrome Display)" (with monochrome display) or AV136, "Audio Communication Line Check (Between Display Control Unit and Audio Unit)" (with color display).
· AV switch check. Refer to AV-127, "AV Switch Self-Diagnosis Function". If above check is OK, replace audio unit.
· Steering switch check. Refer to AV-58, "Steering Switch Check (without bluetooth)".
· AV switch check. Refer to AV-127, "AV Switch Self-Diagnosis Function". If above check is OK, replace audio unit.
· Display unit check. Refer to AV-120, "Self-Diagnosis Mode" (with monochrome display).
· Display control unit check. Refer to AV-120, "Self-Diagnosis Mode" (with color display).
· Audio unit
· Front door speaker check. Refer to AV-62, "Sound Is Not Heard from Front Door Speaker or Front Tweeter (Base and Mid Level System)".
· Rear speaker check. Refer to AV-63, "Sound Is Not Heard from Rear Speaker or Rear Tweeter (Base and Mid Level System)".
· Audio unit · Speaker
· Audio unit · Electrical equipment (generator, bonding wire, etc.)
MALFUNCTION WITH RADIO AND CD (BOSE SYSTEM)
Before proceeding on models with NAVI, confirm that other AV switch functions (except audio functions) operate. If not, refer to AV-204, "Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)".
Symptom Inoperative
Steering switch does not operate Audio screen is not shown All speakers do not sound
Possible cause
· Audio unit power circuit check. Refer to AV-53, "Power Supply Circuit Inspection".
· AV switch check. Refer to AV-127, "AV Switch Self-Diagnosis Function" (without NAVI) or AV-180, "AV Switch Self-Diagnosis Function" (with NAVI).
· Audio communication line check (without NAVI). Refer to AV-134, "Audio Communication Line Check (With Monochrome Display)".
· Audio communication line check (with NAVI). Refer to AV-189, "Audio Communication Line Check (Between Display Control Unit and Audio Unit)".
If above check is OK, replace audio unit.
· Steering switch check. Refer to AV-58, "Steering Switch Check (without bluetooth)".
· AV switch check. Refer to AV-127, "AV Switch Self-Diagnosis Function" (without NAVI) or AV-180, "AV Switch Self-Diagnosis Function" (with NAVI).
· Audio communication line check (without NAVI). Refer to AV-134, "Audio Communication Line Check (With Monochrome Display)".
· Audio communication line check (with NAVI). Refer to AV-189, "Audio Communication Line Check (Between Display Control Unit and Audio Unit)".
If above check is OK, replace audio unit.
· Display unit check. Refer to AV-120, "Self-Diagnosis Mode" (without NAVI), AV-169, "Self-Diagnosis Mode (DCU)" (with NAVI).
· Audio unit · BOSE speaker amp. power supply and ground circuit check. Refer to AV-53,
"Power Supply Circuit Inspection". · BOSE speaker amp. ON signal · BOSE speaker amp.
Revision: August 2007
AV-50
2008 Quest
< SERVICE INFORMATION >
Symptom
One or several speakers do not sound
Poor sound Noisy
FOR RADIO ONLY
AUDIO
Possible cause
A
· Front door speaker check. Refer to AV-64, "Sound Is Not Heard from Front
Door Speaker or Front Tweeter (BOSE System)".
· Rear speaker check. Refer to AV-67, "Sound Is Not Heard from Rear Speak-
er or Rear Tweeter (BOSE System)".
B
· Subwoofer check. Refer to AV-70, "Sound Is Not Heard from Subwoofer
(BOSE System)".
· Center speaker check. Refer to AV-70, "Sound Is Not Heard from Center
Speaker (BOSE System)".
C
· Audio unit · BOSE speaker amp.
· Speaker
D
· Audio unit · BOSE speaker amp.
· Electrical equipment (generator, bonding wire, etc.)
E
Symptom
Possible cause
F
No sound Noisy All radio stations stored in memory are deleted
· Audio unit
· Antenna feeder, wiring or connections
· Antenna amplifier, power supply, wiring or connections
G
· Audio unit
· Antenna feeder, wiring or connections
· Antenna amplifier, power supply, wiring or connections · Noise prevention parts
H
· Electrical equipment (generator, bonding wire, etc.)
· Wire harness of each piece of electrical equipment
· Audio unit power circuit. Refer to AV-53, "Power Supply Circuit In- I
spection". · Audio unit
NOTE:
J
The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.
· Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains or buildings blocking the signal.
AV
· Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves which reflect off mountains or buildings.
FOR CD ONLY
L
Symptom CD cannot be inserted.
Possible cause
M
CD cannot be ejected.
Audio unit
The CD cannot be played.
N
The sound skips, stops suddenly, or is distorted.
FOR SATELLITE RADIO TUNER (FACTORY INSTALLED) ONLY
O
P
Revision: August 2007
AV-51
2008 Quest
< SERVICE INFORMATION >
AUDIO
Symptom
Possible cause
Inoperative
· Satellite radio tuner (factory installed) power and ground circuit inspection. Refer to AV-54, "Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit Inspection".
· Satellite radio tuner (factory installed) communication circuit inspection. Refer to AV-55, "Satellite Radio Tuner (Factory Installed) Communication Circuit Inspection".
If above check is OK, replace satellite radio tuner (factory installed). Refer to AV-72, "Removal and Installation".
Right or left channel does not sound
· Satellite radio tuner (factory installed) right channel audio signal circuit inspection. Refer to AV-57, "Satellite Radio Tuner (Factory Installed) Right Channel Audio Signal Circuit Inspection".
· Satellite radio tuner (factory installed) left channel audio signal circuit inspection. Refer to AV-57, "Satellite Radio Tuner (Factory Installed) Left Channel Audio Signal Circuit Inspection".
If above check is OK, replace satellite radio tuner (factory installed). Refer to AV-72, "Removal and Installation".
Poor reception
· Location of vehicle. Make certain vehicle is in an open area (clear view of sky).
· Satellite radio antenna or antenna feeder. Refer to AV-80, "Location of Antenna".
Noisy
· Satellite radio tuner (factory installed) ground. · Satellite radio tuner (factory installed) harness shield wires. · Electrical equipment (generator, bonding wire, etc.). Refer to AV-52, "Noise
Inspection".
NOTE: Pressing the SAT button, the display unit will display `NO SAT' when the following conditions exist: · Loss of power to the satellite radio tuner (factory installed) · Open or short in the REQ1, TXD, or RXD circuits. If the satellite antenna is disconnected or inoperative, the display unit will display ANTENNA.
Noise Inspection
INFOID:0000000001719384
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and operation of each piece of electrical equipment, and determine the cause. NOTE: The source of the noise can be found easily by listening to the noise while removing the fuses of electrical components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Occurrence condition
Possible cause
Occurs only when engine is ON.
A continuous growling noise occurs. The speed of the noise varies with changes in the engine speed.
A whistling noise occurs while the engine speed is high. A booming noise occurs while the engine is running and the lighting switch is ON.
· Ignition components · Generator
The occurrence of the noise is linked with the operation of the fuel pump.
· Fuel pump condenser
Noise only occurs when various electrical components are operating.
A cracking or snapping sound occurs with the operation of various switches.
· Relay malfunction, radio malfunction
The noise occurs when various motors are operat- · Motor case ground
ing.
· Motor
Revision: August 2007
AV-52
2008 Quest
< SERVICE INFORMATION >
AUDIO
Occurrence condition The noise occurs constantly, not just under certain conditions.
Possible cause
A
· Rear defogger coil malfunction
· Open circuit in printed heater
· Poor ground of antenna amplifier or anten-
na feeder line
B
A cracking or snapping sound occurs while the vehicle is being driven, especially when it is vibrating excessively.
· Ground wire of body parts · Ground due to improper part installation · Wiring connections or a short circuit
C
Power Supply Circuit Inspection
INFOID:0000000001719385
1.CHECK FUSES
D
Check that the following fuses are not blown.
E
Unit
Terminals
Signal name
Fuse No.
Audio unit AV switch
6
Battery power
10
Ignition switch ACC or ON
1
Battery power
31
4
F
19
BOSE speaker amp. (with BOSE)
1
Battery power
Subwoofer (BOSE system)
6
Battery power
31
18
G
OK or NG
OK >> GO TO 2.
H
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-3.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect audio unit, subwoofer (with BOSE) or BOSE speaker amp. (with BOSE) connector.
I
2. Check voltage between the audio unit and ground.
Terminal No.
J
Unit
(+)
OFF
ACC
ON
(-)
Connector Terminal
6
Ground
Battery voltage
Battery voltage
Battery voltage
AV
Audio unit
M43
10
Ground
0V
Battery Battery voltage voltage
L
3. Check voltage between subwoofer (BOSE system) and ground.
Unit
Subwoofer
Terminal No. (+)
(-) Connector Terminal
B11
6
Ground
OFF
Battery voltage
ACC
Battery voltage
ON
Battery voltage
SKIA1992E
M
N
O
P
4. Check voltage between BOSE speaker amp. (with BOSE) and ground.
WKIA1162E
Revision: August 2007
AV-53
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminal No.
Unit
(+)
(-)
Connector Terminal
OFF
ACC
ON
BOSE speaker amp.
M113
1
Ground
Battery voltage
Battery voltage
Battery voltage
OK or NG
OK >> GO TO 3. NG >> · Check connector housings for disconnected or loose
terminals. · Repair harness or connector.
3.GROUND CIRCUIT CHECK
1. Turn ignition switch OFF. 2. Check continuity between subwoofer (BOSE system) harness
connector B11 terminal 5 and BOSE speaker amp. (with BOSE) harness connector M113 terminal 17 and ground.
SKIA4311E
Continuity should exist.
OK or NG
OK >> Inspection End. NG >> · Check connector housings for disconnected or loose
terminals. · Repair harness or connector.
WKIA1163E
Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit Inspection
INFOID:0000000001719386
1.CHECK FUSES
· Check that the following fuses are not blown.
Unit
Terminals
Signal name
Fuse No.
Satellite radio tuner (factory in-
32
Battery power
31
stalled)
36
Ignition switch ACC or ON
4
OK or NG
OK >> GO TO 2. NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-3.
2.POWER SUPPLY CIRCUIT CHECK
1. Turn ignition switch OFF. 2. Disconnect satellite radio tuner (factory installed) M128 connector. 3. Check voltage between the satellite radio tuner (factory installed) and ground.
Terminal No.
Unit
(+)
Connector Terminal
Satellite
32
radio tuner (factory in-
M128
stalled)
36
OK or NG OK >> GO TO 3.
(-) Ground Ground
OFF
Battery voltage
0V
ACC
Battery voltage Battery voltage
ON
Battery voltage Battery voltage
WKIA4539E
Revision: August 2007
AV-54
2008 Quest
AUDIO
< SERVICE INFORMATION >
NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
A
3.GROUND CIRCUIT CHECK
1. Turn ignition switch OFF. 2. Inspect satellite radio tuner (factory installed) case ground.
B
3. Disconnect satellite radio tuner (factory installed) connector M128 (A) and audio unit connector M127 (B).
4. Check continuity between satellite radio tuner (factory installed) and audio unit.
C
Terminals
Satellite radio tuner (factory installed)
Audio unit
Continuity
D
Connector
Terminal
Connector
Terminal
25
45
A: M128
B: M127
Yes
E
26
46
OK or NG
OK >> Inspection End. NG >> · Check connector housings for disconnected or loose
F
WKIA4540E
terminals.
· Repair harness, connector or satellite radio tuner (factory installed) case ground. G
Satellite Radio Tuner (Factory Installed) Communication Circuit Inspection INFOID:0000000001719387
1.CHECK HARNESS - 1
H
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M128 and audio unit connector M127.
3. Check continuity between satellite radio tuner (factory installed)
I
harness connector M128 (A) terminal 28 and audio unit harness
connector M127 (B) terminal 48
Continuity should exist.
J
4. Check continuity between satellite radio tuner (factory installed)
harness connector M128 (A) terminal 28 and ground.
AV
Continuity should not exist.
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK HARNESS - 2
WKIA4541E
L
M
1. Check continuity between satellite radio tuner (factory installed)
harness connector M128 (A) terminal 29 and audio unit harness
connector M127 (B) terminal 49
N
Continuity should exist.
2. Check continuity between satellite radio tuner (factory installed)
O
harness connector M128 (A) terminal 29 and ground.
Continuity should not exist.
OK or NG OK >> GO TO 3. NG >> Repair harness or connector.
3.CHECK HARNESS - 3
P
WKIA4542E
Revision: August 2007
AV-55
2008 Quest
AUDIO
< SERVICE INFORMATION >
1. Check continuity between satellite radio tuner (factory installed) harness connector M128 (A) terminal 30 and audio unit harness connector M127 (B) terminal 50
Continuity should exist.
2. Check continuity between satellite radio tuner (factory installed) harness connector M128 (A) terminal 30 and ground.
Continuity should not exist.
OK or NG
OK >> GO TO 4. NG >> Repair harness or connector.
4.CHECK REQ1 SIGNAL
1. Connect satellite radio tuner (factory installed) connector and audio unit connector. 2. Turn ignition switch to ACC. 3. Check signal between satellite radio tuner (factory installed) har-
ness connector M128 terminal 28 and ground with CONSULT-llI or oscilloscope.
28 - Ground
: Refer to AV-48, "Terminal and Reference Value for Satellite Radio Tuner".
OK or NG
OK >> GO TO 5. NG >> Replace audio unit. Refer to AV-72, "Removal and
Installation".
5.CHECK TXD SIGNAL
1. Check signal between satellite radio tuner (factory installed) harness connector M128 terminal 29 and ground with CONSULT-llI or oscilloscope.
29 - Ground
: Refer to AV-48, "Terminal and Reference Value for Satellite Radio Tuner".
OK or NG
OK >> GO TO 6. NG >> Replace audio unit. Refer to AV-72, "Removal and
Installation".
6.CHECK RXD SIGNAL
1. Check signal between satellite radio tuner (factory installed) harness connector M128 terminal 30 and ground with CONSULT-lIl or oscilloscope.
30 - Ground
: Refer to AV-48, "Terminal and Reference Value for Satellite Radio Tuner".
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to AV-72, "Removal and Installation".
NG >> Replace audio unit. Refer to AV-72, "Removal and Installation".
Revision: August 2007
AV-56
WKIA4543E
WKIA4544E WKIA4545E WKIA4546E
2008 Quest
AUDIO
< SERVICE INFORMATION >
Satellite Radio Tuner (Factory Installed) Left Channel Audio Signal Circuit Inspection
INFOID:0000000001719388
A
1.CHECK HARNESS
1. Turn ignition switch OFF.
B
2. Disconnect satellite radio tuner (factory installed) connector M128 (A) and audio unit connector M127 (B).
3. Check continuity between satellite radio tuner (factory installed) and audio unit.
C
Terminals
Satellite radio tuner (factory installed)
Audio unit
Continuity
D
Connector
Terminal
Connector
Terminal
21
41
A: M128
B: M127
Yes
22
42
4. Check continuity between satellite radio tuner (factory installed) and ground.
Terminals
Satellite radio tuner (factory installed)
Connector
Terminal
Continuity --
E
WKIA4547E
F
G
21
A: M128
Ground
No
22
H
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
I
2.CHECK LEFT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
J
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed)
connector M128 terminals 21 and 22 with CONSULT-lIl or oscil-
loscope.
AV
21 - 22
: Refer to AV-48, "Terminal
and Reference Value for Sat-
L
ellite Radio Tuner".
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to AV-72, "Removal and Installation".
NG >> Replace audio unit. Refer to AV-72, "Removal and Installation".
M
WKIA4548E
N
Satellite Radio Tuner (Factory Installed) Right Channel Audio Signal Circuit Inspection
1.CHECK HARNESS
INFOID:0000000001719389
O
1. Turn ignition switch OFF. 2. Disconnect satellite radio tuner (factory installed) connector M128 (A) and audio unit connector M127 (B). P 3. Check continuity between satellite radio tuner (factory installed) and audio unit.
Revision: August 2007
AV-57
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminals
Satellite radio tuner (factory installed)
Audio unit
Continuity
Connector
Terminal
Connector
Terminal
23
43
A: M128
B: M127
Yes
24
44
4. Check continuity between satellite radio tuner (factory installed) and ground.
Terminals
Satellite radio tuner (factory installed)
Connector
Terminal
Continuity --
A: M128
23
Ground
No
24
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RIGHT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit. 2. Turn ignition switch ON. 3. Check signal between satellite radio tuner (factory installed)
connector M128 terminals 23 and 24 with CONSULT-lIl or oscilloscope.
WKIA4549E
23 - 24
: Refer to AV-48, "Terminal and Reference Value for Satellite Radio Tuner".
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to AV-72, "Removal and Installation".
NG >> Replace audio unit. Refer to AV-72, "Removal and Installation".
WKIA4550E
Steering Switch Check (without bluetooth)
INFOID:0000000001719390
1.AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
1. Start AV switch self-diagnosis function. Refer to AV-49, "AV Switch Self-Diagnosis Function". 2. Operate steering switch.
Does steering switch operate normally?
YES >> Inspection End. NO >> GO TO 2.
2.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect AV switch connector and spiral cable connector. 3. Check continuity between spiral cable harness connector terminal and AV switch harness connector ter-
minal.
Revision: August 2007
AV-58
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminals
Spiral cable
AV switch
Connector Terminal Connector
Terminal
32
13
M30
31
M98
14
24
12
4. Check continuity between AV switch and ground.
Continuity Yes
Terminals
AV switch (+)
Connector
Terminal
Continuity ()
12
M98
13
Ground
No
14
OK or NG
OK >> GO TO 3. NG >> Repair harness.
3.SPIRAL CABLE CHECK
Check continuity between spiral cable connector terminals.
A B C
LKIA0189E
D E F G H
Connector Terminal Connector Terminal
Continuity
32
16
M30
31
M102
17
Yes
24
20
OK or NG
OK >> GO TO 4. NG >> Replace spiral cable. Refer to SRS-36.
4.CHECK STEERING SWITCH RESISTANCE
Check resistance between steering wheel audio control switch terminals.
I
J
WKIA4424E
AV
L
Resistance
Terminal
Signal name
Condition
()
(Approx.)
M
Seek (down) Depress (station) down switch.
165
16 17 Power
Depress power switch.
0
Volume (down) Depress volume down switch.
652
Seek (up)
Depress (station) up switch.
165
20 17 Mode
Depress mode switch.
0
Volume (up) Depress volume up switch.
652
N
O
WKIA4457E
OK or NG
OK >> Inspection End.
P
NG >> Replace steering switch. Refer to AV-72, "Removal and Installation".
Steering Switch Check (with bluetooth)
INFOID:0000000001719391
1.AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
1. Start AV switch self-diagnosis function. Refer to AV-49, "AV Switch Self-Diagnosis Function".
Revision: August 2007
AV-59
2008 Quest
AUDIO
< SERVICE INFORMATION >
2. Operate steering switch.
Does steering switch operate normally?
YES >> Inspection End. NO >> GO TO 2.
2.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect AV switch connector and bluetooth control unit connector. 3. Check continuity between AV switch connector (A) M98 terminals 12, 13, and 14 and bluetooth control
unit connector (B) B506 terminals 17, 18, and 19.
Terminal No.
AV switch (A)
Bluetooth control unit (B)
Connector Terminal Connector
Terminal
12
17
M98
13
B506
18
14
19
4. Check continuity between AV switch and ground.
Continuity Yes
WKIA5248E
Terminal No.
AV switch (+) (A)
Connector
Terminal
Continuity ()
12
M98
13
Ground
No
14
OK or NG
OK >> GO TO 3. NG >> Repair harness.
3.CHECK HARNESS
1. Disconnect spiral cable connector. 2. Check continuity between bluetooth control unit connector (A) B506 terminals 12, 13, and 14 and spiral
cable connector (B) M30 terminals 24, 32, and 31.
Terminals
Bluetooth control unit (A)
Spiral cable (B)
Connector Terminal Connector
Terminal
12
24
B506
13
M30
32
14
31
OK or NG
OK >> GO TO4. NG >> Repair harness.
4.SPIRAL CABLE CHECK
Continuity Yes
WKIA5249E
Revision: August 2007
AV-60
2008 Quest
AUDIO
< SERVICE INFORMATION > Check continuity between spiral cable connector terminals.
A
Connector Terminal Connector Terminal
Continuity
32
16
B
M30
31
M102
17
Yes
24
20
OK or NG
OK >> GO TO 5. NG >> Replace spiral cable. Refer to SRS-36.
5.CHECK STEERING SWITCH RESISTANCE
C
WKIA4424E
D
Check resistance between steering wheel audio control switch terminals.
E
Resistance
Terminal
Signal name
Condition
()
(Approx.)
F
Seek (down) Depress (station) down switch.
165
16 17 Power
Depress power switch.
0
Volume (down) Depress volume down switch.
652
G
Seek (up)
Depress (station) up switch.
165
20 17 Mode
Depress mode switch.
0
Volume (up) Depress volume up switch.
652
WKIA4457E
H
OK or NG
OK >> Replace bluetooth control unit. Refer to AV-223, "Removal and Installation".
I
NG >> Replace steering switch. Refer to AV-72, "Removal and Installation".
AV Switch Check
1.AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
INFOID:0000000001719392
J
Perform AV switch self-diagnosis function. Refer to AV-49, "AV Switch Self-Diagnosis Function".
Does AV switch operate normally?
AV
YES >> Inspection End.
NO >> GO TO 2.
2.CHECK AV SWITCH POWER SUPPLY AND GROUND CIRCUIT
L
Check AV switch power supply and ground circuit. Refer to AV-131, "Power Supply and Ground Circuit Inspec-
tion for AV Switch" (without NAVI) or AV-183, "Power Supply and Ground Circuit Inspection for AV Switch" M (with NAVI).
OK or NG
OK >> Replace AV switch. Refer to AV-72, "Removal and Installation".
N
NG >> Repair malfunctioning part.
Audio Communication Line Check (Without NAVI)
1.CHECK AUDIO COMMUNICATION LINE
INFOID:0000000001719393
O
Start audio communication line check. Refer to AV-134, "Audio Communication Line Check (With Monochrome Display)" (with monochrome display) or AV-189, "Audio Communication Line Check (Between Display P Control Unit and Audio Unit)" (with color display).
OK or NG
OK >> Inspection End. NG >> Replace malfunctioning part.
Revision: August 2007
AV-61
2008 Quest
AUDIO
< SERVICE INFORMATION >
Audio Communication Line Check (With NAVI)
INFOID:0000000001719394
1.CHECK AUDIO COMMUNICATION LINE
Start audio communication line check. Refer to AV-189, "Audio Communication Line Check (Between Display Control Unit and Audio Unit)".
OK or NG
OK >> Inspection End. NG >> Replace malfunctioning part.
Sound Is Not Heard from Front Door Speaker or Front Tweeter (Base and Mid Level
System)
INFOID:0000000001719395
1.HARNESS CHECK
1. Disconnect audio unit connector M43 and front door speaker and tweeter connector (LH or RH). 2. Check continuity between audio unit harness connector M43 ter-
minal and suspect speaker or tweeter harness connector terminal.
Terminals
Audio unit
Speaker or tweeter
Continuity
Connector Terminal Connector Terminal
2
+
D3
1
-
4
+
D103
3
-
M43
Yes
2
+
M109
1
-
4
+
M111
3
-
3. Check continuity between audio unit harness connector M43 terminal and ground.
Terminals
Connector
Audio unit Terminal
Continuity --
2
1
M43
Ground
No
4
3
OK or NG
OK >> GO TO 2. NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector and front speaker or tweeter connector. 2. Turn ignition switch to ACC. 3. Push "POWER" switch.
WKIA1220E
Revision: August 2007
AV-62
2008 Quest
AUDIO
< SERVICE INFORMATION >
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
A
Terminals
(+)
(-)
Condi-
Reference
B
Connector
Terminal
Connector
Terminal
tion
signal
C
2
1
Receive
D
M43
M43
audio
4
3
signal
E
SKIA0177E
OK or NG
OK >> Replace speaker. Refer to AV-72, "Removal and Installation" or AV-72, "Removal and Installation".
NG >> Replace audio unit. Refer to AV-72, "Removal and Installation".
F
G
SKIA4278E
Sound Is Not Heard from Rear Speaker or Rear Tweeter (Base and Mid Level System)
INFOID:0000000001719396
H
1.HARNESS CHECK
1. Disconnect audio unit connector M44 and rear speaker and tweeter connector (LH or RH).
I
2. Check continuity between audio unit harness connector M44 ter-
minal and suspect speaker harness connector terminal.
J
Terminals
Audio unit
Speaker or tweeter
Continuity
Connector Terminal Connector Terminal
AV
13
-
B45
14
+
L
15
-
B131
16
+
M44 13
Yes -
M
D516
14
+
15
-
D506
N
16
+
3. Check continuity between audio unit harness connector M44 ter-
minal and ground.
O
Connector M44
Terminals Audio unit
Terminal 13 14 15 16
Continuity --
Ground
No
WKIA1164E
P
Revision: August 2007
AV-63
2008 Quest
AUDIO
< SERVICE INFORMATION >
OK or NG
OK >> GO TO 2. NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
2.REAR SPEAKER SIGNAL CHECK
1. Connect audio unit connector and rear speaker connector. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
14
13
Condition
Reference signal
M44
M44
16
Receive
audio
15
signal
SKIA0177E
OK or NG OK >> Replace rear speaker. Refer to AV-72, "Removal and Installation" or AV-72, "Removal and Installation". NG >> Replace audio unit. Refer to AV-72, "Removal and Installation".
SKIA4281E
Sound Is Not Heard from Front Door Speaker or Front Tweeter (BOSE System)
INFOID:0000000001719397
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector M112 and front door speaker and tweeter connector (LH or RH).
Revision: August 2007
AV-64
2008 Quest
AUDIO
< SERVICE INFORMATION >
2. Check continuity between BOSE speaker amp. harness connector M112 terminal and suspect speaker harness connector terminal.
Terminals
BOSE speaker amp.
Speaker or tweeter
Continuity
Connector
Terminal
Connector
Terminal
13
+
D3
14
-
15
+
D103
16
-
M112
Yes
13
+
M109
14
-
15
+
M111
16
-
3. Check continuity between BOSE speaker amp. harness connector M112 terminal and ground.
Terminals
BOSE speaker amp.
Connector
Terminal
Continuity --
13
M112
14
Ground
No
15
16
OK or NG
OK >> GO TO 2. NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M112 and suspect speaker connector. 2. Turn ignition switch to ACC. 3. Push "POWER" switch.
A B C D E F G
WKIA1221E
H I J AV L M N O P
Revision: August 2007
AV-65
2008 Quest
AUDIO
< SERVICE INFORMATION >
4. Check the signal between BOSE speaker amp. harness connector M112 terminals with CONSULT-III or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
13
14
Condition
Re-
M112
15
M112
ceive 16 audio
signal
Reference signal
SKIA0177E
OK or NG OK >> Replace suspect speaker. Refer to AV-72, "Removal and Installation" or AV-72, "Removal and Installation". NG >> GO TO 3.
3.HARNESS CHECK
1. Turn ignition switch OFF. 2. Disconnect audio unit connector and BOSE speaker amp. connector. 3. Check continuity between audio unit harness connector terminal
and BOSE speaker amp. harness connector terminal.
Terminals
Audio unit
BOSE speaker amp.
Continuity
Connector
Terminal
Connector
Terminal
1
29
2
30
M43
M112
Yes
3
27
4
28
4. Check continuity between audio unit harness connector terminal and ground.
Terminals
Connector
Audio unit Terminal
Continuity --
1
2
M43
Ground
No
3
4
OK or NG
OK >> GO TO 4. NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
4.FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector and BOSE speaker amp. connector.
Revision: August 2007
AV-66
SKIA4283E
SKIA4284E
2008 Quest
AUDIO
< SERVICE INFORMATION >
2. Turn ignition switch to ACC.
3. Push "POWER" switch.
A
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
B
Terminals
(+)
(-)
Condi-
Reference
Con- Termi- Con- Termi- tion
signal
C
nector nal nector nal
2
1
D
Receive
M43
M43
audio
4
3 signal
E
OK or NG
SKIA0177E
F
OK >> Replace BOSE speaker amp. Refer to AV-72, "Removal
and Installation".
NG >> Replace audio unit. Refer to AV-72, "Removal and
G
Installation".
SKIA4278E
H
Sound Is Not Heard from Rear Speaker or Rear Tweeter (BOSE System) INFOID:0000000001719398
1.HARNESS CHECK
I
1. Disconnect BOSE speaker amp. connector M112 and rear speaker and tweeter connector (LH or RH).
2. Check continuity between BOSE speaker amp. harness connec-
tor M112 terminal and suspect speaker harness connector ter-
J
minal.
Terminals
BOSE speaker amp.
Speaker or tweeter
Continuity
Connector
Terminal
Connector
Terminal
9
+
B45
10
-
11
+
B131
12
-
M112
Yes
9
+
D516
10
-
11
+
D506
12
-
3. Check continuity between BOSE speaker amp. harness connector M112 terminal and ground.
AV L M N O P
WKIA1165E
Revision: August 2007
AV-67
2008 Quest
< SERVICE INFORMATION >
AUDIO
Terminals
BOSE speaker amp.
Connector
Terminal
Continuity --
9
M112
10
Ground
No
11
12
OK or NG
OK >> GO TO 2. NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
2.REAR SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M112 and suspect speaker connector. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check the signal between BOSE speaker amp. harness connec-
tor M112 terminals with CONSULT-III or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
9
10
Condition
Re-
M112
11
M112
ceive 12 audio
signal
Reference signal
SKIA0177E
OK or NG OK >> Replace suspect speaker. Refer to AV-72, "Removal and Installation" or AV-72, "Removal and Installation". NG >> GO TO 3.
3.HARNESS CHECK
1. Turn ignition switch OFF. 2. Disconnect audio unit connector M44 and BOSE speaker amp. connector M112.
SKIA4314E
Revision: August 2007
AV-68
2008 Quest
AUDIO
< SERVICE INFORMATION >
3. Check continuity between audio unit harness connector M44 terminal and BOSE speaker amp. harness connector M112 terminal.
Terminals
Audio unit
BOSE speaker amp.
Continuity
Connector
Terminal
Connector
Terminal
13
25
14
26
M44
M112
Yes
15
23
16
24
4. Check continuity between audio unit harness connector terminal and ground.
Terminals
Connector
Audio unit Terminal
Continuity --
13
14
M44
Ground
No
15
16
OK or NG
OK >> GO TO 4. NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
4.REAR SPEAKER SIGNAL CHECK
1. Connect audio unit connector M44 and BOSE speaker amp. connector M112. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check the signal between audio unit harness connector M44
terminals with CONSULT-III or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
14
13
Condition
M44
M44
16
Re-
ceive
15
audio
signal
Reference signal
SKIA0177E
OK or NG
OK >> Replace BOSE speaker amp. Refer to AV-72, "Removal and Installation".
NG >> Replace audio unit. Refer to AV-72, "Removal and Installation".
Revision: August 2007
AV-69
A B C D E F G
SKIA4315E
H I J AV L M N O P
SKIA4316E
2008 Quest
AUDIO
< SERVICE INFORMATION >
Sound Is Not Heard from Center Speaker (BOSE System)
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector M113 and center speaker connector M110. 2. Check continuity between BOSE speaker amp. harness connec-
tor M113 terminals and center speaker harness connector M110 terminals.
Terminals
BOSE speaker amp.
Center speaker
Continuity
Connector
Terminal
Connector
Terminal
2
-
M113
M110
Yes
18
+
3. Check continuity between BOSE speaker amp. harness connector M113 terminals and ground.
Terminals
BOSE speaker amp.
Connector
Terminal
Continuity --
M113
2
Ground
No
18
OK or NG
OK >> GO TO 2. NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
2.CENTER SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M113 and center speaker connector M110. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check the signal between BOSE speaker amp. harness connec-
tor M113 terminals with CONSULT-III or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
Condition
Reference signal
INFOID:0000000001719399 WKIA1222E
Re-
M113 18 M113
2
ceive audio
signal
SKIA0177E
OK or NG OK >> Replace center speaker. Refer to AV-72, "Removal and Installation". NG >> Replace BOSE speaker amp. Refer to AV-72, "Removal and Installation".
Sound Is Not Heard from Subwoofer (BOSE System)
1.CHECK FUSE
Revision: August 2007
AV-70
WKIA1223E
INFOID:0000000001719400
2008 Quest
AUDIO
< SERVICE INFORMATION > Check that the following fuse is not blown.
A
Unit
Terminal
Signal name
Fuse No.
Subwoofer
OK or NG
6
Battery power
18
B
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-3.
2.POWER SUPPLY CIRCUIT CHECK
C
1. Disconnect subwoofer connector.
2. Check voltage between the subwoofer and ground.
D
Terminal No.
Unit
(+)
OFF
ACC
ON
(-)
Connector Terminal
Subwoofer
B11
6
Ground
Battery voltage
Battery voltage
Battery voltage
OK or NG
OK >> GO TO 3. NG >> · Check connector housings for disconnected or loose
terminals. · Repair harness or connector.
3.GROUND CIRCUIT CHECK
1. Turn ignition switch OFF. 2. Check continuity between subwoofer harness connector B11
terminal 5 and ground.
E
F
G
WKIA1166E
H
I
Continuity should exist.
OK or NG
OK >> GO TO 4. NG >> · Check connector housings for disconnected or loose
terminals. · Repair harness or connector.
4.CHECK SUBWOOFER AMP. ON SIGNAL
1. Connect subwoofer connector. 2. Turn ignition switch to ACC. 3. Operate system and check voltage between subwoofer harness
connector B11 terminal 4 and ground.
Voltage
: More than approx. 6.5V
OK or NG
OK >> GO TO 5. NG >> · Check connector housings for disconnected or loose
terminals. · Repair harness or connector.
5.HARNESS CHECK
1. Turn ignition switch OFF. 2. Disconnect BOSE speaker amp. connector and subwoofer connectors.
J
AV
WKIA1167E
L
M
N
O
P
WKIA1168E
Revision: August 2007
AV-71
2008 Quest
AUDIO
< SERVICE INFORMATION >
3. Check continuity between BOSE speaker amp. harness connector terminal and subwoofer harness connector terminal.
Terminals
BOSE speaker amp.
Subwoofer
Continuity
Connector
Terminal
Connector
Terminal
3
B11
1
M113
Yes
19
B11
2
4. Check continuity between BOSE speaker amp. harness connector terminal and ground.
Terminals
BOSE speaker amp.
Connector
Terminal
Continuity --
3
M113
Ground
No
19
OK or NG
OK >> GO TO 6. NG >> · Check connector housings for disconnected or loose terminals.
· Repair harness or connector.
6.SUBWOOFER SIGNAL CHECK
1. Connect BOSE speaker amp. connector and subwoofer connector. 2. Turn ignition switch to ACC. 3. Check the signal between BOSE speaker amp. harness connec-
tor terminals with CONSULT-III or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
Condition
Reference signal
Receive M113 19 M113 3 audio
signal
SKIA0177E
OK or NG OK >> Replace subwoofer. Refer to AV-72, "Removal and Installation". NG >> Replace BOSE speaker amp. Refer to AV-72, "Removal and Installation".
Removal and Installation
AUDIO UNIT
Removal 1. Remove center stack trim panel. Refer to IP-13, "Center Stack Trim Panel". 2. Disconnect electrical connectors.
WKIA1169E
WKIA1170E INFOID:0000000001719401
Revision: August 2007
AV-72
2008 Quest
AUDIO
< SERVICE INFORMATION > 3. Remove the audio unit (1) by removing the screws (A) and dis-
connecting the harness connectors.
Installation Installation is in the reverse order of removal.
AV SWITCH
Removal 1. Remove cluster lid C. Refer to IP-13, "Cluster Lid C". 2. Remove screws (A) and AV switch (1).
Installation Installation is in the reverse order of removal.
BOSE SPEAKER AMP.
Removal 1. Disconnect battery negative terminal. 2. Remove glove box assembly. Refer to IP-14, "Glove Box". 3. Remove Bose speaker amp (1) by removing the screws (A) and
disconnecting the harness connector (2).
Installation Installation is in the reverse order of removal.
BOSE SUBWOOFER
Removal 1. Remove pedal adjusting switch and power seat switch LH.
Revision: August 2007
AV-73
A
B
C
WKIA5256E
D
E
F
G H
I
LKIA0710E
J
AV
L
M
N
O
WKIA5257E
P
2008 Quest
AUDIO
< SERVICE INFORMATION > 2. Remove outer pedestal finisher. 3. Remove front seat LH. Refer to SE-75, "Removal and Installation". 4. Remove Bose subwoofer.
Installation Installation is in the reverse order of removal.
CENTER SPEAKER
Removal 1. Remove combination meter cover. Refer to IP-10. 2. Remove the center speaker (1) by removing the screws (A) and
disconnecting the harness connector.
Installation Installation is in the reverse order of removal.
FRONT DOOR SPEAKER
Removal 1. Remove door finisher. Refer to EI-29, "Removal and Installation". 2. Remove the three front door speaker screws. 3. Remove the front door speaker. 4. Disconnect front door speaker electrical connector.
Installation Installation is in the reverse order of removal.
FRONT TWEETER
Removal 1. Remove the front speaker cover. Refer to IP-10. 2. Remove the front tweeter (1) by removing the screws (A) and
disconnecting the harness connector.
Revision: August 2007
AV-74
LKIA0718E
WKIA1173E
LKIA0719E
2008 Quest
< SERVICE INFORMATION >
Installation Installation is in the reverse order of removal.
AUDIO
REAR SPEAKER
Removal 1. Remove rear lower finisher assembly. Refer to EI-31, "Removal and Installation". 2. Remove the three rear speaker screws and remove speaker. 3. Disconnect rear speaker electrical connector.
Installation Installation is in the reverse order of removal.
REAR AUDIO CONTROL UNIT
Removal 1. Carefully remove the rear audio remote control unit from the
headlining. CAUTION: Wrap removal tool with clean shop cloth to prevent damage to the headlining. 2. Disconnect rear audio electrical connector. 3. Remove the rear audio remote control unit.
Installation Installation is in the reverse order of removal.
REAR TWEETER
Removal 1. Remove back door lower finisher. Refer to EI-31, "Removal and Installation". 2. Remove push pins and remove tweeter. 3. Disconnect connector.
Installation Installation is in the reverse order of removal.
SATELLITE RADIO ANTENNA
Revision: August 2007
AV-75
A
B
C
D
E
WKIA1175E
F
G H
I
J
WKIA1201E
AV
L
M
N
O
P
WKIA1176E
2008 Quest
AUDIO
< SERVICE INFORMATION >
Removal 1. Remove front roof console assembly. Refer to EI-38. 2. Disconnect satellite radio antenna. 3. Remove satellite radio antenna nut (A). 4. Remove satellite radio antenna.
Installation Installation is in the reverse order of removal.
SATLLITE RADIO TUNER
Removal 1. Remove glove box. Refer to IP-14, "Glove Box". 2. Disconnect satellite radio tuner connectors. 3. Remove satellite radio tuner bolts (1).
4. Remove satellite radio tuner unit. Installation Installation is in the reverse order of removal.
STEERING WHEEL AUDIO CONTROL SWITCHES
Removal 1. Remove steering wheel. Refer to PS-8, "Removal and Installation". 2. Remove horn switch screws and remove horn switch.
Revision: August 2007
AV-76
LKIA0675E LKIA0664E WKIA1224E
2008 Quest
AUDIO
< SERVICE INFORMATION > 3. Remove steering wheel rear cover screws and remove steering
wheel rear cover.
4. Remove steering wheel switch assembly screws and steering wheel switches.
Installation Installation is in the reverse order of removal.
Revision: August 2007
AV-77
A B C
WKIA1225E
D E F G
WKIA1226E
H I J AV L M N O P
2008 Quest
< SERVICE INFORMATION >
AUDIO ANTENNA
AUDIO ANTENNA
System Description
With the ignition switch in ACC or ON, power is supplied · through 10A fuse [No. 4, located in the fuse block (J/B)] · to audio unit terminal 10. Ground is supplied through the case of the antenna amp. When the radio switch is turned ON, antenna signal is supplied · through audio unit terminal 5 · to the antenna amp. terminal 1. Then the antenna amp. is activated. The amplified radio signals are supplied to the audio unit through the antenna amp.
INFOID:0000000001719402
Revision: August 2007
AV-78
2008 Quest
< SERVICE INFORMATION >
Wiring Diagram - W/ANT -
AUDIO ANTENNA
Revision: August 2007
AV-79
INFOID:0000000001719403
A B C D E F G H I J AV L M N O
WKWA4960E
P
2008 Quest
< SERVICE INFORMATION >
Location of Antenna
AUDIO ANTENNA
INFOID:0000000001719404
: To audio unit
WKIA4247E
1. Satellite radio tuner (if equipped) M128, M129
4. M64, M350
7. Antenna feeder 10. Window antenna grid LH
Window Antenna Repair
2. M502, M601 5. M351 8. Window antenna grid RH
3. M48, M501 6. Satellite radio antenna (if equipped, facto-
ry installed) 9. Antenna amp. M602
INFOID:0000000001719405
ELEMENT CHECK
1. Attach probe circuit tester (ohm setting) to antenna terminal on each side.
SEL250I
Revision: August 2007
AV-80
2008 Quest
AUDIO ANTENNA
< SERVICE INFORMATION > · When measuring continuity, wrap tin foil around the top of
probe. Then, press the foil against the wire with your finger.
2. If an element is broken, no continuity will exist.
3. To locate a break, move probe along element. Tester indication will change abruptly when probe passes the broken point.
Element Repair
Refer to GW-91, "Filament Repair".
Revision: August 2007
AV-81
A
B
C
SEL122R
D
E
F
G H
I
J
SEL252I
AV
L
M
N
SEL253I
O
P
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION >
DVD ENTERTAINMENT SYSTEM
Component Parts and Harness Connector Location
INFOID:0000000001719406
WKIA5228E
1. DVD player M153, M154
2. Audio unit M46
4. R15 Video monitor (without rear roof console assembly) R53 Front video monitor (with rear roof console assembly)
System Description
3. Rear video monitor (with dual monitor system) R55
INFOID:0000000001719407
Refer to Owner's Manual for DVD entertainment system operating instructions. Power is supplied at all times · through 15A fuse [No. 22, located in the fuse block (J/B)] · to DVD player terminal 16. With the ignition switch in the ACC or ON position, power is supplied · through 10A fuse [No. 4, located in the fuse block (J/B)] · to DVD player terminal 15. Power is also supplied · from DVD player terminals 31 and 32 · to video monitor terminals 11 and 12. Ground is supplied · to DVD player terminal 22
Revision: August 2007
AV-82
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION >
· through grounds M57, M61, and M79.
Audio signals are supplied
A
· through DVD player terminals 1, 2, 3 and 4
· to audio unit terminals 34, 35, 36 and 37.
Video signals are supplied · through DVD player terminals 23, 24, 28 and 29
B
· to front video monitor terminals 5, 6, 7 and 8 and rear video monitor (models with dual monitor system) ter-
minals 5 and 8.
On dual monitor DVD entertainment systems, video signals are also supplied
C
· through DVD player terminals 25 and 30
· to rear video monitor terminals 6 and 7.
D
E
F
G
H
I
J
AV
L
M
N
O
P
Revision: August 2007
AV-83
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION >
Schematic
INFOID:0000000001719408
Revision: August 2007
AV-84
WKWA4762E
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION >
Wiring Diagram - DVD -
INFOID:0000000001719409
A B C D E F G H I J AV L M N O
WKWA4763E
P
Revision: August 2007
AV-85
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION >
Revision: August 2007
AV-86
WKWA4764E
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION > MODELS WITHOUT REAR ROOF CONSOLE ASSEMBLY
A B
C D E
F G H
I J AV L
M N O
WKWA4765E
P
Revision: August 2007
AV-87
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION > MODELS WITH REAR ROOF CONSOLE ASSEMBLY (SINGLE MONITOR)
Revision: August 2007
AV-88
WKWA4766E
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION > MODELS WITH REAR ROOF CONSOLE ASSEMBLY (DUAL MONITOR)
A B
C D E
F G H
I J AV L
M N O
WKWA4767E
P
Revision: August 2007
AV-89
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION >
Revision: August 2007
AV-90
WKWA4768E
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION >
Trouble Diagnosis
INFOID:0000000001719410
A
Symptom DVD player inoperative
Possible causes
1. Power supply 2. Ground circuit 3. Audio enable circuit 4. DVD enable signal 5. Audio enable signal 6. DVD player 7. Audio unit
No sound when playing DVD
1. Audio signal circuits 2. DVD player 3. Audio unit
Video monitor is inopera- 1.
tive/does not operate prop- 2.
erly
3.
4.
5.
6.
Power supply Video monitor ground circuit Video circuits Data signal Video monitor DVD player
DVD remote control is inop- 1.
erative/does not operate 2.
properly
3.
4.
Data signal DVD player remote control batteries DVD player remote control Video monitor
Headphones inoperative Snowy video/poor audio Snowy video (audio OK) No video (audio OK) Dim video (audio OK)
1. Headphone batteries 2. Headphones 3. Rear audio remote control unit
1. Harness or connectors 2. DVD player
1. Harness or connectors 2. DVD player
1. Harness or connectors 2. DVD player 3. Video monitor
1. Harness or connectors 2. DVD player 3. Video monitor
Power Supply Circuit Inspection
1.CHECK FUSES
Check that the following fuses are not blown.
Repair order
1. Refer to AV-91, "Power Supply Circuit Inspection".
B
2. Refer to AV-91, "Power Supply Circuit Inspection".
3. Check audio enable circuits for open or short be-
tween audio unit terminals 39, 40 and DVD player
terminals 11, 9.
C
4. Push power switch of DVD player and verify approx.
5V is present at terminal 39 of audio unit.
5. Push power switch of DVD player and verify approx. 5V is present at terminal 9 of DVD player.
D
6. Remove DVD player for repair.
7. Remove audio unit for repair.
1. Check audio signal circuits for open or short be-
E
tween DVD player terminals 1, 2, 3 and 4 and audio
unit terminals 34, 35, 36 and 37.
2. Remove DVD player for repair.
3. Remove audio unit for repair.
F
1. Operate DVD player and verify battery positive volt-
age is present at terminals 11 and 12 of video moni-
tor. Verify approximately 5 volts is present at terminal G
10 of video monitor.
2. Check video monitor ground circuits between DVD
player terminals 19 and 27 and video monitor termi-
nals 1 and 2.
H
3. Check video circuits between DVD player terminals
23 and 24 and video monitor terminals 7 and 8.
4. Check data signal circuit for open or short between DVD player terminal 29 and video monitor terminal
I
5.
5. Remove video monitor for repair.
6. Remove DVD player for repair.
J
1. Check data signal circuit for open or short between
DVD player terminal 28 and video monitor terminal
6. 2. Replace DVD player remote control batteries.
AV
3. Replace DVD player remote control.
4. Remove video monitor for repair.
1. Replace headphone batteries.
L
2. Replace headphones.
3. Replace rear audio remote control unit.
1. Check harness and connectors for open or short.
M
2. Check DVD player.
1. Check harness and connectors for open or short.
2. Check DVD player.
N
1. Check harness and connectors for open or short.
2. Check DVD player.
3. Check video monitor.
O
1. Check harness and connectors for open or short.
2. Check DVD player.
3. Check video monitor.
P
INFOID:0000000001719411
Revision: August 2007
AV-91
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION >
Unit
Terminals
Signal name
Fuse No.
DVD player
16
Battery power
22
15
Ignition switch ACC or ON
4
OK or NG
OK >> GO TO 2. NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-3.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect DVD player connector. 2. Check voltage between the DVD player and ground.
Terminal No.
Unit
(+)
OFF
ACC
ON
(-)
Connector Terminal
DVD player M153
16
Ground
Battery voltage
Battery voltage
Battery voltage
15
Ground 0 V
Battery Battery voltage voltage
OK or NG
OK >> GO TO 3. NG >> · Check connector housings for disconnected or loose
terminals. · Repair harness or connector.
3.GROUND CIRCUIT CHECK
1. Turn ignition switch OFF. 2. Check continuity between DVD player harness connector P105
terminal 22 and ground.
Continuity should exist.
OK or NG
OK >> Inspection End. NG >> · Check connector housings for disconnected or loose
terminals. · Repair harness or connector.
Removal and Installation
DVD PLAYER
Removal 1. Remove center stack trim panel. Refer to IP-13, "Center Stack Trim Panel". 2. Disconnect electrical connectors. 3. Remove DVD player screws, using power tool. 4. Pull out DVD player and disconnect DVD player connectors. Installation Installation is in the reverse order of removal.
WKIA1197E
WKIA1198E INFOID:0000000001719412
VIDEO MONITOR (WITHOUT REAR ROOF CONSOLE ASSEMBLY)
Removal
Revision: August 2007
AV-92
2008 Quest
DVD ENTERTAINMENT SYSTEM
< SERVICE INFORMATION > 1. Remove video monitor screws. 2. Disconnect connector. 3. Remove video monitor housing.
4. Remove the video monitor hinge screws. 5. Remove the video monitor from video monitor housing.
Installation Installation is in reverse order of removal.
VIDEO MONITOR (WITH REAR ROOF CONSOLE ASSEMBLY)
Removal 1. Remove rear roof console assembly. Refer to EI-38. 2. Disconnect the video monitor connector. 3. Remove the video monitor screws. 4. Remove the video monitor and housing.
5. Remove the video monitor hinge screws and remove the video monitor.
Installation Installation is in reverse order of removal.
Revision: August 2007
AV-93
A B C
WKIA1200E
D E F G
WKIA1219E
H I J AV L M
WKIA1199E
N O P
WKIA1219E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
INTEGRATED DISPLAY SYSTEM
System Description
INFOID:0000000001719413
INTEGRATED DISPLAY SYSTEM
Refer to Owners Manual for integrated display operating instructions.
AV SWITCH SYSTEM
Refer to Owners Manual for AV switch operating instructions. Using the AV switch at the center of the instrument panel, the controls of the following systems are centralized: · Integrated display system (Drive computer, setting screen, clock, etc.) · Audio system
PRECAUTION OF LCD MONITOR
· Brightness of LED backlight display may change, depending on in-car temperature. In low temperatures, the refreshing rate of the picture also becomes low because of the low response of the LCD monitor. When passenger area becomes warm, however, the LCD recovers the normal display.
· Backlight sometimes flickers or darkens according to the total operation hours and the number of times switched ON and OFF. In this case, entire display unit should be replaced. (Backlight cannot be replaced separately.)
POWER SUPPLY AND GROUND
Power is supplied at all times · to ignition relay, located in the intelligent power distribution module engine room (IPDM E/R), and · through 15A fuse (No. 34 and 41, located in IPDM E/R) · to CPU of IPDM E/R, and · through 20A fuse (No. 31, located in fuse and fusible link box), and · to audio unit terminal 6 · through 15A fuse [No. 19, located in fuse block (J/B)] · to display unit terminal 1 (with monochrome display) or display control unit terminal 1 (with color display) and · to AV switch terminal 1 and · to combination meter terminal 40. When ignition switch is in ACC or ON position, power is supplied · through 10A fuse [No. 4, located in fuse block (J/B)] · to display unit terminal 2 (with monochrome display) or display control unit terminal 10 (with color display)
and · to AV switch terminal 2 and · to BCM terminal 11. When ignition switch is in ON or START position, power is supplied · to ignition relay, located in IPDM E/R, and · through 10A fuse [No. 12, located in fuse block (J/B)] · to display unit terminal 3 (with monochrome display) or display control unit terminal 12 (with color display). Ground is supplied · to display unit terminal 6 (with monochrome display) or display unit terminal 1 (with color display) · to display control unit terminal 3 (with color display) and · to AV switch terminal 5 and · to combination meter terminal 20 and · to BCM terminal 67 · through body grounds M57, M61 and M79, and · to IPDM E/R terminals 38 and 60 · through body grounds E9, E15 and E24.
DRIVE COMPUTER
Refer to Owners Manual for drive computer operating instructions.
CAN COMMUNICATION SYSTEM DESCRIPTION
Refer to LAN-3, "CAN Communication System".
Revision: August 2007
AV-94
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Schematic (With Monochrome Display)
INFOID:0000000001719414
A B C D E F G H I J AV L M N O
WKWA4769E
P
Revision: August 2007
AV-95
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Schematic (With Color Display)
INFOID:0000000001719415
Revision: August 2007
AV-96
WKWA4770E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Wiring Diagram - INF/D -
(WITH MONOCHROME DISPLAY)
INFOID:0000000001719416
A B C D E F G H I J AV L M N O P
WKWA4771E
Revision: August 2007
AV-97
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Revision: August 2007
AV-98
WKWA4772E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
A B C D E F G H I J AV L M N O
WKWA4773E
P
Revision: August 2007
AV-99
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Revision: August 2007
AV-100
WKWA4774E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
A B C D E F G H I J AV L M N O
WKWA4775E
P
Revision: August 2007
AV-101
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > (WITH COLOR DISPLAY)
Revision: August 2007
AV-102
WKWA4776E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
A B C D E F G H I J AV L M N O
WKWA4777E
P
Revision: August 2007
AV-103
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Revision: August 2007
AV-104
WKWA4778E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
A B C D E F G H I J AV L M N O
WKWA4779E
P
Revision: August 2007
AV-105
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Revision: August 2007
AV-106
WKWA4780E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
A B C D E F G H I J AV L M N O
WKWA4781E
P
Revision: August 2007
AV-107
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Revision: August 2007
AV-108
WKWA4782E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Schematic
INFOID:0000000001719417
A B C D E F G H I J AV L M N O
WKWA4798E
P
Revision: August 2007
AV-109
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Wiring Diagram - COMM -
INFOID:0000000001719418
Revision: August 2007
AV-110
WKWA4783E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > (WITH MONOCHROME DISPLAY)
A B C D E F G H I J AV L M N O
WKWA4961E
P
Revision: August 2007
AV-111
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > (WITH COLOR DISPLAY)
Revision: August 2007
AV-112
WKWA4785E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Display Unit (With Monochrome Display) Harness Connector Terminal Layout
INFOID:0000000001719419
A
B
C
WKIA5208E
D
Terminal and Reference Value for Display Unit (With Monochrome Display)
INFOID:0000000001719420
E
Terminal No. (Wire color)
+
Signal
Condition
Item
input/
output Ignition
switch
Operation
1 (Y/R) Ground Battery power Input OFF
2 (V) Ground ACC signal Input ACC
3 (G) Ground Ignition signal Input
ON
4 (R/L)
Ground
Illumination signal
Input
6 (B) Ground Ground
OFF ON
Lighting switch is ON (position 1).
Turn lighting switch OFF.
7 (P/L)
Vehicle speed Ground signal (8-
pulse)
Input
When vehicle speed ON is approx. 40 km/h
(25 MPH)
Voltage (Approx.) Battery voltage Battery voltage
Battery voltage
Battery voltage 3.0V or less 0V
Example of
F
symptom
System does not G
work properly.
System does not
work properly.
H
A/C operation is not possible. Ve-
hicle information I
setting is not possible.
Audio unit illumination does not
J
come on when
lighting switch is
ON (position 1). AV
L
Drive computer item is not dis-
played correctly. M
SKIA0168E
N
8 (B/R) Ground
Audio TX
Output
ON
Operate audio volume.
9
Shield ground
Audio does not
O
operate properly.
P
SKIA4402E
Revision: August 2007
AV-113
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Terminal No. (Wire color)
+
Signal
Condition
Item
input/
output Ignition
switch
Operation
Voltage (Approx.)
Example of symptom
10 (BR) Ground Audio RX
Input
ON
Operate audio volume.
Audio does not operate properly.
SKIA4403E
11 (V)
Ground
Communication signal (+)
Input/ output
ON
12
Shield ground
System does not work properly.
SKIA0175E
13 (LG)
Ground
Communication signal (-)
Input/ output
ON
System does not work properly.
14 (L)
CAN-H
SKIA0176E
16 (P)
CAN-L
Display Unit (With Color Display) Harness Connector Terminal Layout
INFOID:0000000001719421
Terminal and Reference Value for Display Unit (With Color Display)
Terminal No. (Wire color)
+
1 (B) Ground 2 (L/W) Ground
3 (L/R) Ground
Item
Ground Power supply (Inverter) Power supply (Signal)
Signal input/ output
Input
Input
Ignition switch ON
ON
ON
Condition
Operation
Revision: August 2007
AV-114
Voltage (Approx.)
0V 9V 9V
WKIA5209E
INFOID:0000000001719422
Example of symptom
Screen is not shown. Screen is not shown.
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Terminal No. (Wire color)
+
Signal
Condition
Item
input/ Igni-
output tion
Operation
switch
Voltage (Approx.)
A
Example of symptom
B
Select "Display Di-
6 (R/W)
7
RGB signal (G: green)
Input
ON
agnosis (DCU)" of CONFIRMATION/
ADJUSTMENT
function.
7
Shield ground
Horizontal
8 (R)
21
synchronizing (HP) sig-
Output
ON
nal
C
Screen looks reddish.
D
SKIA4981E
E
Operating
screen for audio F
and A/C is not displayed.
G
SKIA4983E
9 (B)
21
RGB area (YS) signal
Input
ON
Press the "TRIP" button.
Display com-
11 (B/W)
23
munication signal
Input
ON
(DCU-DSP)
13 (P/B) Ground
(Inverter) Ground
ON
14 (LG) Ground
(Signal) Ground
ON
Select "Display Di-
17 (R/L)
7
RGB signal (R: red)
Input
ON
agnosis (DCU)" of CONFIRMATION/
ADJUSTMENT
function.
18 (B)
Select "Display Di-
7
RGB signal (B: blue)
Input
ON
agnosis (DCU)" of CONFIRMATION/
ADJUSTMENT
function.
Revision: August 2007
AV-115
Operating
H
screen for audio
and A/C is not
displayed.
I
SKIA0162E
J
Though a screen is displayed, it is
impossible to ad- AV
just brightness.
SKIA4364E
L
0V
0V
M
N
Screen looks bluish.
O
SKIA4980E
P
Screen looks yellowish.
SKIA4982E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Terminal No. (Wire color)
+
Signal
Condition
Item
input/ Igni-
output tion
Operation
switch
Voltage (Approx.)
Example of symptom
19 (G)
21
RGB synchronizing Input ON
signal
Press the "TRIP" button.
Screen is rolling.
SKIA0164E
Vertical syn-
20 (W)
21
chronizing Output ON
(VP) signal
21
Shield ground
Operating screen for audio and A/C is not displayed.
SKIA4983E
Display com-
22 (L)
23
munication signal
Output
ON
(DSP-DCU)
23
Shield ground
Display Control Unit Harness Connector Terminal Layout
Though a screen is displayed, it is impossible to adjust brightness.
SKIA4363E
INFOID:0000000001719423
Revision: August 2007
AV-116
WKIA5210E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Terminal and Reference Value for Display Control Unit
INFOID:0000000001719424
A
Terminal No. (Wire color)
+
Signal
Item
input/
output
1 (Y/R) 2 (L/W)
3 (B) 4 (L/R) 5 (P/B) 7 (LG)
Ground
Battery Power
Input
Ground
Power Supply (Inverter)
Output
Ground Ground
Ground
Power Supply (Signal)
Output
Ground
(Inverter) Ground
Ground
(Signal) Ground
Ignition switch OFF
ON ON ON
ON
ON
Condition
Operation
10 (V) Ground ACC signal Input ACC
12 (G) Ground Ignition signal Input ON
14 (R/L)
Ground
Illumination signal
Input
OFF
Lighting switch position 1st or 2nd
Lighting switch position OFF
16 (P/L)
Ground
Vehicle speed signal
(8pulse)
Input
When vehicle speed ON is approx. 40 km/h
(25 MPH)
Voltage (Approx.)
Battery voltage 9V 0V 9V 0V 0V
Battery voltage
Battery voltage
Battery voltage 0V
Example of
B
symptom
C
System does not work properly.
Screen is not shown.
D
Screen is not
E
shown.
F
System does not work properly.
G
Vehicle informa-
tion setting is not
possible.
H
Display unit
does not change
when lighting
I
switch is turned
to 1st position.
J
Value of vehicle speed informa-
tion is not accu- AV
rately displayed.
25 (L)
CAN-H
26 (P)
CAN-L
SKIA0168E
L
M
28 (V)
Ground
Communication signal (+)
Input/ Output
ON
29
Shield ground
30 (LG)
Ground
Communication signal ()
Input/ output
ON
System does not N
work properly.
SKIA0175E
O
P
System does not work properly.
Revision: August 2007
AV-117
SKIA0176E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Terminal No. (Wire color)
+
Signal
Condition
Item
input/ Igni-
output tion
Operation
switch
Voltage (Approx.)
Example of symptom
36 (B/W)
Display Com-
37
munication signal
Output
ON
(DCU-DSP)
Press the "TRIP" button.
37
Shield ground
Though a screen is displayed, it is impossible to adjust brightness.
SKIA4364E
38 (L)
Display Com-
37
munication signal
Input
ON
(DSP-DCU)
Press the "TRIP" button.
39
Shield ground
Though a screen is displayed, it is impossible to adjust brightness.
SKIA4363E
Audio TX 40 (B/R) Ground Communica- Output ON
tion signal
Operate audio volume.
Audio does not operate properly.
SKIA4402E
Audio RX 42 (BR) Ground communica- Input ON
tion signal
Operate audio volume.
47
Shield ground
49
Shield ground
Select "Display Di-
50 (R/L)
47
RGB signal (R: red)
Output
ON
agnosis (DCU)" of CONFIRMATION/
ADJUSTMENT
function.
Audio does not operate properly.
SKIA4403E
Screen looks bluish.
SKIA4980E
51 (B)
49
RGB area (YS) signal
Output
ON
Press the"TRIP" button.
Revision: August 2007
AV-118
RGB screen is not shown.
SKIA0162E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Terminal No. (Wire color)
+
Signal
Condition
Item
input/ Igni-
output tion
Operation
switch
Voltage (Approx.)
A
Example of symptom
B
Select "Display Di-
52 (R/W) 47
RGB signal (G: green)
Output
ON
agnosis (DCU)" of CONFIRMATION/
ADJUSTMENT
function.
Vertical syn-
53 (W)
49
chronizing Input ON
(VP) signal
54 (B)
Select "Display Di-
47
RGB signal (B: blue)
Output
ON
agnosis (DCU)" of CONFIRMATION/
ADJUSTMENT
function.
C
Screen looks reddish.
D
SKIA4981E
E
Operating
screen for audio
and A/C is not displayed.
F
SKIA4983E
G
Screen looks
H
yellowish.
I
SKIA4982E
Horizontal
55 (R)
49
synchronizing (HP) sig-
Input
ON
nal
56 (G)
49
RGB synchronizing Output ON
signal
Press the "TRIP" button.
Operating
J
screen for audio
and A/C is not
displayed.
AV
SKIA4983E
L
Screen is rolling. M
Terminal and Reference Value for BCM
SKIA0164E
Refer to BCS-11, "Terminal and Reference Value for BCM".
Terminal and Reference Value for AV Switch
Refer to AV-47, "Terminal and Reference Value for AV Switch".
On Board Self-Diagnosis Function (With Monochrome Display Unit)
N
INFOID:0000000001719425
O
INFOID:0000000001719426
P
INFOID:0000000001719427
DESCRIPTION
· Diagnosis function consists of the self-diagnosis mode performed automatically. · Self-diagnosis mode checks for connections between the units constituting this system, analyzes each indi-
vidual unit at the same time, and displays the results on the LCD screen.
Revision: August 2007
AV-119
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > DIAGNOSIS ITEM
Mode Self-diagnosis
Item NETWORK CHECK PARTS CHECK VERSION CHECK
Description
Reference page
Check network between control unit and switch connected from display unit via communication line.
AV-120, "Self-Diagnosis Mode"
· Perform diagnosis and setting of display unit.
AV-120, "Self-Diagnosis
· Perform self-diagnosis for auto air conditioner system. Mode"
Displays version of each unit.
AV-120, "Self-Diagnosis Mode"
Self-Diagnosis Mode
INFOID:0000000001719428
OPERATION PROCEDURES
1. Start the engine.
2. Turn the audio system off.
3. While pressing the "4" switch, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When the selfdiagnosis mode is started, a short beep will be heard.) If unable to start self-diagnosis mode refer to AV-138, "AV Communication Line Check (With Monochrome Display)".
4. Display unit connection check screen.
5. Select each connecting unit (IVCS, CHANGER, SATELLITE RADIO).
WKIA5232E
6. Self-diagnosis screen is displayed. · Using the joystick, select each item, and perform diagnosis. CAUTION: If self-diagnosis cannot be activated, refer to AV-127, "Trouble Diagnosis Chart by Symptom".
NETWORK CHECK
Revision: August 2007
AV-120
SKIA4377E SKIA4378E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Selecting NETWORK CHECK on self-diagnosis screen displays self-
diagnostic results.
A
B
C
SKIA4379E
D
Diagnosis item HVAC
SWITCH
Contents
DTC return condition
Reference at error
OK/NG
Communication error between combination meter and display unit.
"DISPLAY UNIT CIRCUIT INSPECTION"
E
OK/NG Communication error between AV switch and display unit.
AV-138, "AV Communication
Line Check (With Mono-
F
chrome Display)"
AUDIO
OK/NG Communication error between audio and display unit.
AV-134, "Audio Communica-
tion Line Check (With Mono- G
chrome Display)"
PARTS CHECK
· Selecting PARTS CHECK on self-diagnosis screen displays selec-
H
tion screen.
· Selecting DISPLAY indicates DISPLAY DETAIL screen. Display
diagnosis and setting can be performed. · Selecting HVAC indicates HVAC DETAIL screen. Air conditioner
I
system self-diagnosis can be performed.
J
DISPLAY DETAIL SCREEN
Items
Description
FULL BLINK
All display unit segments turn ON.
BLANKADJ
Adjust the display timeout for 5 to 15 seconds. (Default is 10 seconds.)Note
WARNING
Select warning indication ON/OFF. (Default is ON.)
NOTE: Except an audio screen.
HVAC DETAIL SCREEN
SKIA4381E
AV
L
M
N
SKIA4382E
O
P
Revision: August 2007
AV-121
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Press the joystick, start air conditioner system self-diagnosis. Refer to ATC-45, "A/C System Self-Diagnosis Function".
SKIA4383E
VERSION CHECK
Check ID and version of display, AV switch, and audio.
DISPLAY UNIT CIRCUIT INSPECTION
1.CHECK CONNECTOR
1. Turn ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check terminals and connector of display unit for damage, bent or loose connection (unit side and har-
ness side).
OK or NG
OK >> GO TO 2. NG >> Repair terminal or connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect display unit connector. 2. Check resistance between display unit harness connector termi-
nals.
Display unit connector
Terminal
Resistance (Approx.)
M93
14
16
54 - 66
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Repair harness between display unit and data link connector.
SKIA6867E
On Board Self-Diagnosis Function (With Color Display)
INFOID:0000000001719429
DESCRIPTION
· Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/ ADJUSTMENT mode operated manually.
· Self-diagnosis mode checks for connections between the units constituting this system, analyzes each individual unit at the same time, and displays the results on the LCD screen.
· CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and judgment by an operator (trouble that cannot be automatically judged by the system), to check/change the set value.
DIAGNOSIS ITEM
Mode Self-diagnosis (DCU)
Description Display control unit diagnosis.
Revision: August 2007
AV-122
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Mode
CONFIRMATION/ ADJUSTMENT
Display diagnosis Vehicle signals
Description
A
On display control unit mode, color tone and shading of the screen can be checked by the display of a color bar and a gray scale.
On display control unit mode, analyzes the following vehicle signals: Vehi-
cle speed signal, light signalNOTE, ignition switch signal, and reverse signal. B
CAN DIAG SUPPORT MONITOR
Display status of CAN communication.
NOTE:
C
Make the status that is set by D/N function be shown.
Self-Diagnosis Mode (DCU)
OPERATION PROCEDURE
INFOID:0000000001719430
D
1. Start the engine.
2. Turn the audio system off.
E
3. While pressing the "4" button, turn the volume control dial clock-
wise or counterclockwise for 30 clicks or more. When the self-
diagnosis mode is started, a short beep will be heard. If self-
F
diagnosis mode can not be started refer to AV-138, "AV Commu-
nication Line Check (Between Display Control Unit and AV
Switch)".
G
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Confirmation/Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
WKIA5232E
H I
J
5. Perform self-diagnosis by selecting the "Self-diagnosis". · Self-diagnosis subdivision screen will be shown and the operation enters the self-diagnosis mode. · A bar graph shown below the self-diagnosis subdivision screen indicates progress of the diagnosis.
WKIA4476E
AV
L
M
N
SKIA4208E
O
P
Revision: August 2007
AV-123
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
6. When the self-diagnosis completes, optional part confirmation screen will be shown. · When connection of an optional part is judged error, a screen to check if the optional part is actually fitted on the vehicle or not will be shown. When fitted, select the switch of the part on the screen and press "End". Then the "SELF DIAGNOSIS" screen will be shown. · When the optional part is connected normally, the switch for the part will not appear on the screen.
SKIA4209E
7. On the "SELF DIAGNOSIS" screen, each unit name will be colored according to the diagnosis result, as follows.
Green : Not malfunctioning.
Yellow : Cannot be judged by self-diagnosis results.
Red Gray
: Unit is malfunctioning. : Diagnosis has not been done.
· If several malfunctions are present in a unit, color of its switch on the screen will be either red, yellow, or gray, determined by the malfunction of the highest priority.
WKIA4477E
8. Select a switch on the "SELF DIAGNOSIS" screen and comments for the diagnosis results will be shown. · When the switch is green, the following comment will be shown. "Self-diagnosis was successful. Further diagnosis and adjustments are recommended. Follow the "confirmation/ adjustment" menu or refer to the service manual." · When the switch is yellow, the following comment will be shown. "Connection to the following unit is abnormal. See the service manual for further details". · When the switch is red, the following comment will be shown. "DCU is abnormal".
SELFDIAGNOSIS RESULT
SKIA4211E
Quick reference table
1. Select a malfunctioning diagnosis No. in the diagnosis result quick reference table. 2. Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to AV-
163, "Wiring Diagram - COMM -". 3. Turn the ignition switch OFF and perform self-diagnosis again.
Switch color
Screen switch
DCU*
DISPLAY
Audio unit
GPS antenna
Diagnosis No.
Red
×
1
×
x
2
Gray
x
x
3
×
×
4
*: DCU = Display control unit CAUTION: · When AV switch has a malfunction, you cannot start. Refer to AV-144, "Unable to Operate All of AV
Switches (Unable to Start Self-Diagnosis)". · When display unit has a malfunction, you cannot start. Refer to AV-202, "Screen Is Not Shown".
Self-Diagnosis Codes
Revision: August 2007
AV-124
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Diagnosis No.
1
Display control unit malfunction.
Possible cause
2
Display communication line between display control unit and display unit.
3
Audio unit power supply and ground circuit. Audio communication line between display control unit and audio unit.
Confirmation/Adjustment Mode
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the "4" button, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. When the selfdiagnosis mode is started, a short beep will be heard. If selfdiagnosis mode can not be started refer to AV-136, "Audio Communication Line Check (Between Display Control Unit and Audio Unit)".
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Confirmation/Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
5. When "Confirmation/Adjustment" is selected on the initial trouble diagnosis screen, the operation will enter the CONFIRMATION/ ADJUSTMENT mode. In this mode, check and adjustment of each item will become possible.
6. The initial trouble diagnosis screen will be shown, and items "Display Diagnosis", "Vehicle Signals" and "Auto Climate Control" will become selective.
7. Select each switch on "CONFIRMATION/ADJUSTMENT" screen to display the relevant diagnosis screen.
Reference
A
page
Refer to AV-120.
Refer to AV-139.
B
Refer to AV-136.
C
INFOID:0000000001719431
D
E
F
G
WKIA5232E
H
I
J
WKIA4476E
AV
L
M
N
WKIA4478E
O
P
Revision: August 2007
AV-125
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > DISPLAY DIAGNOSIS
WKIA4316E
· When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.
R (red) signal error
: Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error
: Screen looks yellowish
· When the color of the screen looks unusual, refer to AV-141, "Color of RGB Image Is Not Proper (All Screens Look Bluish)", AV-142, "Color of RGB Image Is Not Proper (All Screens Look Reddish)" and AV143, "Color of RGB Image Is Not Proper (All Screens Look Yellowish)".
VEHICLE SIGNALS
· A comparison check can be made of each actual vehicle signal and the signals recognized by the system. CAUTION: In case of confirming light signal, set D/N mode to ON/OFF of lighting switch (normal setting). · OFF: D (Day mode) · ON: N (Night mode) Unless above setting, light signal (ON/OFF) may not be accurately displayed.
WKIA4306E
Diagnosis item
Display
Condition
Remarks
Vehicle speed
ON OFF
Vehicle speed > 0 km/h (0 MPH) Vehicle speed = 0 km/h (0 MPH) Ignition switch in ACC position
Changes in indication may be delayed by approx. 1.5 seconds. This is normal.
ON
Lighting switch ON
Light
OFF
Lighting switch OFF
ON
Ignition switch ON
IGN
OFF
Ignition switch ACC
Reverse
ON OFF
Selector lever in R position Selector lever in other than R position Ignition switch in ACC position
Changes in indication may be delayed by approx. 1.5 seconds. This is normal.
· If vehicle speed is NG, refer to AV-132, "Vehicle Speed Signal Inspection for Display Control Unit". · If light is NG, refer to AV-134, "Illumination Signal Inspection for Display Control Unit".
Revision: August 2007
AV-126
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > · If IGN is NG, refer to AV-134, "Ignition Signal Inspection for Display Control Unit". · If reverse is NG, refer to AV-187, "Reverse Signal Inspection for Display Control Unit".
AV Switch Self-Diagnosis Function
A
INFOID:0000000001719432
Refer to AV-49, "AV Switch Self-Diagnosis Function".
Trouble Diagnosis Chart by Symptom
B
INFOID:0000000001719433
C
Symptom
Suspect Systems and reference
No screen is shown.
Refer to AV-128, "Power Supply and Ground Circuit Inspection for Monochrome
Display" (with monochrome display) or AV-128, "Power Supply and Ground Circuit D
Inspection for Color Display" (with color display). If above is normal, replace display unit.
Refer to AV-133, "Illumination Signal Inspection (With Monochrome Display)" (with E
Screen does not switch to nighttime mode after the monochrome display) or AV-134, "Illumination Signal Inspection for Display Con-
lighting switch is turned to 1st.
trol Unit" (with color display).
If above is normal, replace display unit.
F
Refer to AV-134, "Ignition Signal Inspection (With Monochrome Display)" (with
TRIP and FUEL ECON screen do not appear.
monochrome display) or AV-134, "Ignition Signal Inspection for Display Control Unit" (with color display).
If above is normal, replace display unit.
G
Refer to DI-18, "Vehicle Speed Signal Inspection" (with monochrome display) or
· Trip odometer (DIST) is not added up.
AV-132, "Vehicle Speed Signal Inspection for Display Control Unit" (with color dis-
· Average vehicle speed (AVG) is not displayed. play).
H
If above is normal, replace display unit.
Average fuel consumption (AVG) is not displayed. Distance to empty (DTE) is not displayed.
· Refer to DI-18, "Vehicle Speed Signal Inspection" (with monochrome display) or
AV-132, "Vehicle Speed Signal Inspection for Display Control Unit" (with color
display).
I
· Refer to AV-120, "Self-Diagnosis Mode" (with monochrome display) or AV-145,
"CAN Communication Line Check (With Color Display)" (with color display unit).
If above is normal, replace display.
J
· Check if speedometer operates. If it does not operate, go to DI-18, "Vehicle
Speed Signal Inspection" (with monochrome display) or AV-132, "Vehicle Speed
Signal Inspection for Display Control Unit" (with color display).
· Check if fuel gauge operates. If it does not operate, go to DI-19, "Fuel Level AV
Sensor Unit Inspection".
· Refer to AV-120, "Self-Diagnosis Mode" (with monochrome display) or AV-145,
"CAN Communication Line Check (With Color Display)" (with color display unit). If above is normal, replace display unit.
L
· Refer to DI-18, "Vehicle Speed Signal Inspection" (with monochrome display) or
AV-132, "Vehicle Speed Signal Inspection for Display Control Unit" (with color
Door warning screen does not appear.
display).
M
· Refer to AV-120, "Self-Diagnosis Mode" (with monochrome display) or AV-145,
"CAN Communication Line Check (With Color Display)" (with color display).
If above is normal, replace display unit.
N
· Refer to AV-131, "Power Supply and Ground Circuit Inspection for AV Switch".
· Refer to AV-127, "AV Switch Self-Diagnosis Function".
AV switch and all switch operation are not possible. · Refer to AV-138, "AV Communication Line Check (With Monochrome Display)"
(Do not start self-diagnosis.)
(with monochrome display) or AV-138, "AV Communication Line Check (Be-
O
tween Display Control Unit and AV Switch)" (with color display).
If above is normal, replace display unit.
Audio operation is not possible.
· Refer to AV-127, "AV Switch Self-Diagnosis Function".
P
· Refer to AV-134, "Audio Communication Line Check (With Monochrome Dis-
play)" (with monochrome display) or AV-136, "Audio Communication Line
Check (Between Display Control Unit and Audio Unit)" (with color display).
Previous vehicle conditions are not stored.
Refer to AV-145, "Previous Vehicle Conditions Are Not Stored".
Revision: August 2007
AV-127
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Power Supply and Ground Circuit Inspection for Monochrome Display
1.CHECK FUSE
Check if the following fuses for display unit are blown.
INFOID:0000000001719434
Unit
Power souse
Fuse No.
Battery power
19
Display unit
Ignition switch ACC or ON
4
Ignition switch ON or START
12
OK or NG
OK >> GO TO 2. NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect display unit connector. 2. Check voltage between display unit connector and ground.
Terminals
Ignition switch position
(+) ()
Connector Terminal
OFF
ACC
ON
1
Ground
Battery voltage
Battery voltage
Battery voltage
M93
2
Ground
0V
Battery voltage
Battery voltage
3
Ground
0V
0V
Battery voltage
OK or NG
OK >> GO TO 3. NG >> Check harness for open between display unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. 2. Check continuity between display unit harness connector M93
terminal 6 and ground.
Continuity should exist.
OK or NG OK >> Inspection End. NG >> Repair ground harness.
SKIA4386E
Power Supply and Ground Circuit Inspection for Color Display
SKIA4387E INFOID:0000000001719435
1. CHECK POWER SUPPLY AND GROUND CIRCUIT FOR DISPLAY CONTROL UNIT
Check power supply and ground circuit for display control unit. Refer to AV-130, "Power Supply and Ground Circuit Inspection for Display Control Unit".
OK or NG
OK >> GO TO 2. NG >> Repair malfunctioning part.
2. CHECK POWER SUPPLY CIRCUIT FOR DISPLAY UNIT
Revision: August 2007
AV-128
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
1. Disconnect display unit connector.
2. Turn ignition switch ON.
A
3. Check voltage between display unit harness connector M93 ter-
minals 2, 3 and ground.
Approx. 9V
B
OK or NG
OK >> GO TO 4.
C
NG >> GO TO 3.
D
WKIA1227E
3.CHECK HARNESS
1. Turn ignition switch OFF.
E
2. Disconnect display unit connector M93 and display control unit connector M94.
3. Check continuity between display control unit harness connector M94 terminals 2, 4 and display unit har-
ness connector M93 terminals 2, 3.
F
Terminals
Display control unit
Display unit
Connector
Terminal
Connector
Terminal
2
2
M94
M93
4
3
4. Check continuity between display unit and ground.
Continuity Yes
Terminals
Connector
Display unit Terminal
Continuity --
2
M93
Ground
No
3
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation". NG >> Repair harness.
4. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. 2. Check continuity between display unit harness connector M93
terminals 13, 14 and ground.
G H I
WKIA1229E
J AV
L M
Continuity should exist.
N
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
O
5. CHECK HARNESS
1. Disconnect display control unit connector M94.
WKIA2079E
P
Revision: August 2007
AV-129
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > 2. Check continuity between display unit harness connector M93
terminals 13, 14 and display control unit harness connector M94 terminals 5, 7.
Continuity should exist.
OK or NG OK >> Replace display control unit. Refer to AV-148, "Removal and Installation". NG >> Repair harness.
6.CHECK GROUND CIRCUIT
Check continuity between display unit and ground as follows.
1.
Connector
Terminals Terminal
--
Ignition switch
Continuity
M93
1
Ground
OFF
Yes
OK or NG
OK >> Inspection End. NG >> Repair harness.
WKIA2080E
Power Supply and Ground Circuit Inspection for Display Control Unit
1.CHECK FUSE
Make sure the following fuses of the display control unit are not blown.
WKIA1228E INFOID:0000000001719436
Connector
Terminals
Terminal
Power source
Fuse No.
1
Battery power
19
M94
10
ACC power
4
12
Ignition switch ON or START
12
OK or NG
OK >> GO TO 2. NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect display control unit connector M94. 2. Check voltage between connector terminals and ground as fol-
lows.
Terminals (+) Connector Terminal
1
M94
10
12
OK or NG
Revision: August 2007
() Ground
Ignition switch position
OFF
ACC
ON
Battery voltage
0V
0V
Battery voltage Battery voltage
0V
Battery voltage
Battery voltage
Battery voltage
AV-130
WKIA1373E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
OK >> GO TO 3.
NG >> Check harness for open between display control unit and fuse.
A
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. 2. Check continuity between the following display control unit ter-
B
minal and ground.
Terminals
C
Ignition switch Continuity
Connector
Terminal
--
M94
3
Ground
OFF
Yes
OK or NG
OK >> Inspection End. NG >> Repair or replace harness.
D
E
SKIA4293E
Power Supply and Ground Circuit Inspection for AV Switch
1.CHECK FUSES
INFOID:0000000001719437
F
Check the fuses below.
Unit
Power source
G
Fuse No.
AV switch
Battery power Ignition switch ACC or ON
19
4
H
OK or NG
OK NG
>> GO TO 2. >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
I
3.
2.CHECK POWER SUPPLY CIRCUIT
J
1. Disconnect AV switch connector. 2. Check voltage between AV switch and ground.
AV
Terminals
Ignition switch position
(+)
()
OFF
ACC
ON
Connector Terminal
L
M98
1
Ground
Battery voltage
Battery voltage
Battery voltage
2
Ground
0V
Battery voltage
Battery voltage
M
LKIA0210E
OK or NG
N
OK >> GO TO 3.
NG >> Check harness for open between AV switch and fuse.
3.CHECK GROUND CIRCUIT
O
1. Turn ignition switch OFF.
P
Revision: August 2007
AV-131
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > 2. Check continuity between AV switch harness connector M98 ter-
minal 5 and ground.
Continuity should exist.
OK or NG OK >> Inspection End. NG >> Repair ground harness.
Vehicle Speed Signal Inspection (With Monochrome Display)
1.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect display unit connector M93 and combination meter connector M24. 3. Check continuity between display unit connector M93 (B) termi-
nal 7 and combination meter connector M24 (A) terminal 26.
Continuity should exist.
4. Check continuity between display unit harness connector M93 (A) terminal 7 and ground.
Continuity should not exist.
OK or NG
OK >> GO TO 2. NG >> Repair harness.
2.CHECK VEHICLE SPEED SIGNAL
1. Connect display unit and combination meter connectors. 2. Drive vehicle at a constant speed. 3. Check the signal between display unit harness connector M93
terminal 7 and ground with CONSULT-III or oscilloscope.
7 - Ground
: Refer to AV-113, "Terminal and Reference Value for Display Unit (With Monochrome Display)".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Check combination meter system. Refer to DI-18, "Vehicle Speed Signal Inspection".
Vehicle Speed Signal Inspection for Display Control Unit
1.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M94 and combination meter connector M24.
LKIA0211E INFOID:0000000001719438
WKIA5250E
WKIA1370E INFOID:0000000001719439
Revision: August 2007
AV-132
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > 3. Check continuity between combination meter connector M24 (A)
terminal 26 and display control unit connector M94 (B) terminal 16.
Continuity should exist.
4. Check continuity between display control unit harness connector M94 (B) terminal 16 and ground.
Continuity should not exist.
OK or NG OK >> GO TO 2. NG >> Repair harness.
2.CHECK 1: VEHICLE SPEED SIGNAL
1. Connect display control unit connector and combination meter connector. 2. Turn ignition switch ON. 3. Check voltage between display control unit harness connector
M94 terminal 16 and ground.
Approx. 3.5V or more
OK or NG OK >> GO TO 3. NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
3.CHECK 2: VEHICLE SPEED SIGNAL
1. Drive vehicle at a constant speed. 2. Check signal between display control unit harness connector
M94 terminal 16 and ground with CONSULT-III or oscilloscope.
16 - Ground
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
NG >> Check combination meter system. Refer to DI-18, "Vehicle Speed Signal Inspection".
Illumination Signal Inspection (With Monochrome Display)
1.CHECK ILLUMINATION SIGNAL
1. Turn ignition switch ON. 2. Check voltage between display unit and ground.
Terminals
Lighting switch position
(+)
()
Connector Terminal
1st or 2nd position
OFF
M93
4
Ground
Battery voltage
Approx. 3V or less
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
Revision: August 2007
AV-133
A
B
C
WKIA5251E
D
E
F
G H
SKIA4297E
I
J
AV
L
SKIA4616E
M
INFOID:0000000001719440
N
O
P
SKIA4393E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > NG >> Check harness for open or short between display unit and IPDM E/R.
Illumination Signal Inspection for Display Control Unit
1.CHECK ILLUMINATION SIGNAL
1. Turn ignition switch ON. 2. Check voltage between display control unit and ground.
Connector
Terminals (+)
Terminal
Lighting switch position
()
1st or 2nd po-
sition
OFF
M94
14
Ground
Battery voltage
Approx. 0V
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
NG >> Check harness for open or short between display control unit and IPDM E/R.
Ignition Signal Inspection (With Monochrome Display)
1.CHECK IGNITION SIGNAL
1. Disconnect the display unit connector. 2. Turn ignition switch ON. 3. Check voltage between display unit harness connector M93 ter-
minal 3 and ground.
Battery voltage should exist.
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Check harness for open or short between display unit and fuse.
Ignition Signal Inspection for Display Control Unit
1.CHECK IGNITION SIGNAL
1. Disconnect display control unit connector M94. 2. Turn ignition switch ON. 3. Check voltage between display control unit harness connector
M94 terminal 12 and ground.
Battery voltage should exist.
OK or NG OK >> Replace display control unit. Refer to . NG >> Check harness for open or short between display control unit and fuse.
Audio Communication Line Check (With Monochrome Display)
1.CHECK HARNESS
1. Turn ignition switch OFF.
Revision: August 2007
AV-134
INFOID:0000000001719441
SKIA4299E INFOID:0000000001719442
SKIA4394E INFOID:0000000001719443
WKIA1230E INFOID:0000000001719444
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
2. Disconnect audio unit connector M45 and display unit connector M93. 3. Check continuity between audio unit and display unit.
C
A (Base system) B (Mid level system)
Connector
Terminal
Connector
Terminal
8
65
Display Unit: M93
10
Audio unit: M45
66
9
67
4. Check continuity between display unit and ground.
Continuity Yes
Terminals
C
Continuity
Connector Display unit: M93
Terminal 8 10
Ground No
OK or NG
OK >> GO TO 2. NG >> Repair harness.
2.CHECK AUDIO TX COMMUNICATION SIGNAL
1. Connect display unit connector. 2. Turn ignition switch ON. 3. Check voltage between display unit harness connector M93 ter-
minal 8 and ground.
Voltage
: Approx. 3.5V
OK or NG
OK >> GO TO 3. NG >> Replace display unit. Refer to AV-148, "Removal and
Installation".
3.CHECK AUDIO RX COMMUNICATION SIGNAL
1. Turn ignition switch OFF. 2. Connect audio unit connector. 3. Turn ignition switch ON. 4. Check voltage between audio unit harness connector M45 [(A)
with base system or (B) with mid level system] terminal 65 and ground.
Voltage
: Approx. 3.5V
OK or NG
OK >> GO TO 4. NG >> Replace audio unit. Refer to AV-72, "Removal and
Installation".
4.CHECK AUDIO TX COMMUNICATION SIGNAL
1. Turn ignition switch ON.
Revision: August 2007
AV-135
A B C D
WKIA4203E
E F G H I J AV
SKIA4396E
L M N O P
WKIA4204E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
2. Check the signal between audio unit harness connector M45 [(A) with base system or (B) with mid level system] terminal 66 and ground with CONSULT-III or oscilloscope.
66 - Ground
: Refer to AV-113, "Terminal and Reference Value for Display Unit (With Monochrome Display)".
OK or NG
OK >> GO TO 5. NG >> Replace audio unit. Refer to AV-72, "Removal and
Installation".
5.CHECK AUDIO RX COMMUNICATION SIGNAL
1. Turn ignition switch ON. 2. Check the signal between display unit harness connector M93
terminal 10 and ground with CONSULT-III or oscilloscope.
WKIA4205E
10 - Ground
: Refer to AV-113, "Terminal and Reference Value for Display Unit (With Monochrome Display)".
OK or NG
OK >> Inspection End. NG >> Replace display unit. Refer to AV-148, "Removal and
Installation".
SKIA4398E
Audio Communication Line Check (Between Display Control Unit and Audio Unit)
INFOID:0000000001719445
1.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for audio unit. Refer to AV-53, "Power Supply Circuit Inspection".
OK or NG
OK >> GO TO 2. NG >> Check the malfunctioning parts.
2.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect audio unit connector M45 and display control unit connector M95. 3. Check continuity between audio unit and display control unit.
Terminals
Display control unit
Audio unit
Continuity
Connector
Terminal
Connector
Terminal
40
65
M95
M45
Yes
42
66
4. Check continuity between display control unit and ground.
Terminals
Display control unit
Connector
Terminal
40 M95
42
OK or NG
-- Ground
Continuity No
WKIA1192E
Revision: August 2007
AV-136
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > OK >> GO TO 3. NG >> Repair harness or connector.
3.CHECK 1: AUDIO-TX COMMUNICATION SIGNAL
1. Connect display control unit connector M95. 2. Turn ignition switch ON. 3. Check voltage between display control unit harness connector
M95 terminal 42 and ground.
Approx. 3.5V or more.
OK or NG OK >> GO TO 4. NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
4.CHECK 2: AUDIO-RX COMMUNICATION SIGNAL
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95. 3. Connect audio unit connector. 4. Turn ignition switch ON. 5. Check voltage between audio unit harness connector M45 ter-
minal 65 and ground.
Approx. 3.5V or more.
OK or NG OK >> GO TO 5. NG >> Replace audio unit. Refer to AV-72, "Removal and Installation".
5.CHECK 3: AUDIO-TX COMMUNICATION SIGNAL
1. Turn ignition switch OFF. 2. Connect display control unit connector. 3. Turn ignition switch ON. 4. Check signal between display control unit harness connector
M95 terminal 40 and ground with CONSULT-lIl or oscilloscope.
40 - Ground
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> GO TO 6. NG >> Replace display control unit. Refer to AV-148, "Removal
and Installation".
6.CHECK 4: AUDIO-RX COMMUNICATION SIGNAL
1. Turn ignition switch ON.
Revision: August 2007
AV-137
A
B
C
D
E
WKIA1770E
F
G H
I
J
WKIA1771E
AV
L
M
N
O
SKIA4447E
P
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
2. Check signal between display control unit harness connector M95 terminal 42 and ground with CONSULT-lIl or oscilloscope.
42 - Ground
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Inspection End. NG >> Replace audio unit. Refer to AV-72, "Removal and
Installation".
AV Communication Line Check (With Monochrome Display)
1.CHECK AV SWITCH CIRCUIT
1. Turn ignition switch OFF. 2. Disconnect display unit connector and AV switch connector. 3. Check continuity between display unit and AV switch.
SKIA4448E INFOID:0000000001719446
Terminals
Display unit
AV switch
Continuity
Connector Terminal Connector Terminal
11
6
M93
13
M98
8
Yes
12
7
4. Check continuity between display unit and ground.
LKIA0213E
Connector
Terminals Terminal
Terminal
Continuity
11
M93
Ground
No
13
OK or NG
OK >> GO TO 2. NG >> Repair harness.
2.CHECK AV COMMUNICATION SIGNAL
1. Connect display unit connector and AV switch connector. 2. Turn ignition switch ON. 3. Check the signal between display unit harness connector M93
terminals 11, 13 and ground with CONSULT-III or oscilloscope.
11, 13 - Ground
: Refer to AV-113, "Terminal and Reference Value for Display Unit (With Monochrome Display)".
OK or NG
OK >> Replace AV switch. Refer to AV-72, "Removal and Installation".
NG >> Replace display unit. Refer to .
SKIA4401E
AV Communication Line Check (Between Display Control Unit and AV Switch)
INFOID:0000000001719447
1.CHECK AV SWITCH CIRCUIT
Revision: August 2007
AV-138
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 (A) and AV switch connector M98 (B).
A
3. Check continuity between display control unit and AV switch.
Terminals
B
(A)
(B)
Continuity
Connector
Terminal
Connector
Terminal
28
6
C
M95
M98
Yes
30
8
4. Check continuity between display control unit and ground.
D
Terminals
Display control unit
Connector
Terminal
28 M95
30
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK SELF-DIAGNOSIS OF DCU
-- Ground
Continuity No
WKIA5379E
E
F
G
1. Replace AV switch.
H
2. Connect display control unit and AV switch connector.
3. Turn ignition switch ON.
4. Start self-diagnosis of DCU and check the self-diagnosis result.
I
OK or NG
OK >> Inspection End.
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
J
Display Communication Line Check (Between Display Control Unit and Display Unit)
INFOID:0000000001719448
1.CHECK HARNESS
AV
1. Turn ignition switch OFF.
2. Disconnect display unit connector M93 and display control unit connector M95.
L
3. Check continuity between display control unit and display unit.
Terminals
Display control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
36
11
M95
M93
Yes
38
22
4. Check continuity between display control unit and ground.
Terminals
Display control unit
Connector
Terminal
36 M95
38
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
-- Ground
Continuity No
Revision: August 2007
AV-139
M N O
WKIA2019E
P
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
2.CHECK 1: COMMUNICATION SIGNAL (DCUDSP)
1. Connect display unit connector. 2. Turn ignition switch ON. 3. Check voltage between display unit harness connector M93 ter-
minal 11 and ground.
Approx. 3.5V or more.
OK or NG OK >> GO TO 3. NG >> Replace display unit. Refer to AV-148, "Removal and Installation".
3.CHECK 2: COMMUNICATION SIGNAL (DSPDCU)
1. Connect display control unit connector. 2. Turn ignition switch ON. 3. Check voltage between display control unit harness connector
M95 terminal 38 and ground.
Approx. 3.5V or more.
OK or NG OK >> GO TO 4. NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
4.CHECK 3: COMMUNICATION SIGNAL (DCUDSP)
1. Turn ignition switch ON. 2. Check signal between display control unit harness connector
M95 terminal 36 and ground with CONSULT-III or oscilloscope.
36 - Ground
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> GO TO 5. NG >> Replace display control unit. Refer to .
5.CHECK 4: COMMUNICATION SIGNAL (DSPDCU)
1. Turn ignition switch ON. 2. Check signal between display control unit harness connector
M95 terminal 38 and ground with CONSULT-III or oscilloscope.
38 - Ground
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Inspection End. NG >> Replace display unit. Refer to AV-148, "Removal and
Installation".
Revision: August 2007
AV-140
WKIA1377E
SKIA4453E SKIA4452E SKIA4453E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Operating Screen for Audio and A/C Is Not Displayed
1.CHECK HARNESS
INFOID:0000000001719449
A
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 and display unit connector M93.
B
3. Check continuity between display control unit harness connector M95 terminal 49, 51, 53, 55 and display
unit harness connector M93 terminal 21, 9, 20, 8.
C
Continuity should exist.
4. Check continuity between display control unit harness connector
M95 terminal 55 and display unit harness connector M93 termi-
D
nal 8.
Continuity should exist.
5. Check continuity between display control unit harness connector M95 terminal 49, 51, 53, 55 and ground.
Continuity should not exist.
OK or NG OK >> GO TO 2. NG >> Repair harness.
2.CHECK HORIZONTAL SYNCHRONIZATION SIGNAL
1. Connect display control unit connector and display unit connector. 2. Turn ignition switch ON. 3. Check signal between display control unit connector M95 termi-
nals 55 and 49 with CONSULT-lIl or oscilloscope.
E
WKIA1965E
F
G
H
I
55 - 49
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> GO TO 3. NG >> Replace display unit. Refer to AV-148, "Removal and
Installation".
3.CHECK RGB AREA SIGNAL
1. Press the "TRIP" button. 2. Check signal between display control unit connector M95 termi-
nals 51 and 49 with CONSULT-lIl or oscilloscope.
J
AV
SKIA4305E
L
M
51 - 49
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display unit. Refer to . NG >> Replace display control unit. Refer to AV-148, "Removal
and Installation".
Color of RGB Image Is Not Proper (All Screens Look Bluish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95 and display unit connector M93. 3. Check continuity between display control unit and display unit.
Revision: August 2007
AV-141
N
O
SKIA4306E
P
INFOID:0000000001719450
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
4. Check continuity between display control unit and ground. · When the screen looks bluish.
B Connector
Display control unit: M95
Terminals
A
Terminal
Connector
50
Display unit:
47
M93
Terminal 17 7
Continuity Yes
Terminals
Connector
B Terminal
Continuity --
Display control
50
unit: M95
47
Ground
No
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
1. Connect display control unit connector and display unit connector. 2. Turn ignition switch ON. 3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode. 4. Check the following with CONSULT-llI or oscilloscope. · When the screen looks bluish.
Voltage signal between display control unit connector M95 terminal 50 and 47.
50 - 47
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Replace display control unit. Refer to .
Color of RGB Image Is Not Proper (All Screens Look Reddish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95 and display unit connector M93. 3. Check continuity between display control unit and display unit. 4. Check continuity between display control unit and ground. · When the screen looks reddish.
B Connector
Display control unit: M95
Terminals
A
Terminal
Connector
52
Display unit:
47
M93
Terminal 6 7
Continuity Yes
Revision: August 2007
AV-142
WKIA4221E
SKIA4697E INFOID:0000000001719451
WKIA4222E
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Terminals
B
--
Connector
Terminal
Display control
52
unit: M95
47
Ground
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
1. Connect display control unit connector and display unit connector. 2. Turn ignition switch ON. 3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode. 4. Check the following with CONSULT-lIl or oscilloscope. · When the screen looks reddish.
Voltage signal between display control unit connector M95 terminal 52 and 47.
Continuity No
52 - 47
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
Color of RGB Image Is Not Proper (All Screens Look Yellowish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95 and display unit connector M93. 3. Check continuity between display control unit and display unit. 4. Check continuity between display control unit and ground.
· When the screen looks yellowish.
B Connector
Display control unit: M95
Terminals
A
Terminal
Connector
54
Display unit:
47
M93
Terminal 18 7
Continuity Yes
Terminals
B
Connector
Terminal
Display control
54
unit: M95
47
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
-- Ground
Continuity No
Revision: August 2007
AV-143
A B C D E F G H
SKIA4698E
I
INFOID:0000000001719452
J AV
L M N O
WKIA4223E
P
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
1. Connect display control unit connector and display unit connector. 2. Turn ignition switch ON. 3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode. 4. Check the following with CONSULT-lIl or oscilloscope. · When the screen looks yellowish.
Voltage signal between display control unit connector M95 terminal 54 and 47.
54 - 47
: Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
SKIA4356E
No Warning Message Is Displayed (Combination Meter Warning Lamp Illuminates)
INFOID:0000000001719453
1. DISPLAY CONDITION CHECK
Check display conditions of each warning screen.
Warning screen
Display condition
DOOR OPEN
Vehicle is running [approx. 5 km/h (3 MPH) or faster] and door ajar of any of the doors is detected.
LIFTGATE OPEN
Vehicle is running [approx. 5 km/h (3 MPH) or faster] and liftgate ajar is detected.
Have conditions been met to display warning screen?
YES >> GO TO 2. NO >> Inspection End.
2.SELF-DIAGNOSIS CHECK
Perform self-diagnosis. Refer to AV-123, "Self-Diagnosis Mode (DCU)".
Is self-diagnosis result OK?
YES >> Replace combination meter. Refer to DI-22, "Combination Meter". NO >> Check the malfunctioning parts.
Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)
INFOID:0000000001719454
1.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Refer to AV-183, "Power Supply and Ground Circuit Inspection for AV Switch".
OK or NG
OK >> GO TO 2. NG >> Check the malfunctioning parts.
2.AV SWITCH SELF-DIAGNOSIS
AV switch self-diagnosis. Refer to AV-180, "AV Switch Self-Diagnosis Function".
OK or NG
OK >> GO TO 3. NG >> Check the malfunctioning parts.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Refer to AV-130, "Power Supply and Ground Circuit Inspection for Display Control Unit".
OK or NG
OK >> GO TO 4. NG >> Check the malfunctioning parts.
Revision: August 2007
AV-144
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
4.CHECK COMMUNICATION LINE A Check communication line. Refer to AV-138, "AV Communication Line Check (Between Display Control Unit
and AV Switch)".
OK or NG
B
OK >> Replace AV switch. Refer to AV-72, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
Previous Vehicle Conditions Are Not Stored
INFOID:0000000001719455
C
1.CHECK BATTERY POWER
Check display control unit battery power.
D
Refer to AV-130, "Power Supply and Ground Circuit Inspection for Display Control Unit".
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
E
NG >> Check display control unit battery power system harness.
CAN Communication Line Check (With Color Display)
1.CHECK MONITOR DESCRIPTION
INFOID:0000000001719456
F
1. Start display control unit self-diagnosis. Refer to AV-123, "Self-Diagnosis Mode (DCU)".
G
2. Select "CAN DIAG SUPPORT MONITOR". Refer to AV-179,
"CAN Diagnostic Support Monitor".
H
>> GO TO LAN-41, "CAN System Specification Chart" after
checking the state of "CAN DIAG SUPPORT MONI-
TOR" displayed on the screen.
I
J
WKIA4307E
Steering Wheel Audio Control Switch Check (Without Bluetooth)
1.AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
INFOID:0000000001719457
AV
1. Start AV switch self-diagnosis function. Refer to AV-127, "AV Switch Self-Diagnosis Function". 2. Operate steering wheel audio control switch.
L
Does steering wheel audio control switch operate normally?
OK >> Inspection End.
M
NG >> GO TO 2.
2.CHECK HARNESS
1. Turn ignition switch OFF.
N
2. Disconnect AV switch connector M98 and spiral cable connector M30.
3. Check continuity between spiral cable harness connector terminals and AV switch harness connector ter-
minals.
O
P
Revision: August 2007
AV-145
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
Terminals
Spiral cable
AV switch
Connector Terminal Connector
Terminal
32
13
M30
31
M98
14
24
12
4. Check continuity between AV switch and ground.
Continuity Yes
Terminals
AV switch (+)
Connector
Terminal
Continuity ()
12
M98
13
Ground
No
14
OK or NG
OK >> GO TO 2. NG >> Repair harness.
3.SPIRAL CABLE CHECK
Check spiral cable harness.
OK or NG
OK >> GO TO 4. NG >> Replace spiral cable. Refer to SRS-36.
4.CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
Check resistance between steering wheel audio control switch terminals.
LKIA0189E
Terminal (+) ()
Signal name
Condition
Resistance ()
(Approx.)
Seek (down) Depress (station) down switch.
165
16 17 Power
Depress power switch.
0
Volume (down) Depress volume down switch.
652
Seek (up)
Depress (station) up switch.
165
20 17 Mode
Depress mode switch.
0
Volume (up) Depress volume up switch.
652
WKIA4457E
OK or NG
OK >> Replace AV switch. Refer to AV-72, "Removal and Installation". NG >> Replace steering wheel audio control switch. Refer to AV-72, "Removal and Installation".
Steering Switch Check (with bluetooth)
INFOID:0000000001719458
1.AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
1. Start AV switch self-diagnosis function. Refer to AV-49, "AV Switch Self-Diagnosis Function" . 2. Operate steering switch.
Does steering switch operate normally?
YES >> Inspection End. NO >> GO TO 2.
2.CHECK HARNESS
1. Turn ignition switch OFF.
Revision: August 2007
AV-146
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
2. Disconnect AV switch connector and bluetooth control unit connector. 3. Check continuity between AV switch connector M98 (A) terminals 13, 14, and 12 and bluetooth control A
unit connector B506 (B) terminals 17, 18, and 19.
Terminal No.
B
AV switch (A)
Bluetooth control unit (B)
Continuity
Connector Terminal Connector
Terminal
C
12
17
M98
13
B506
18
Yes
14
19
D
4. Check continuity between AV switch and ground.
Terminal No.
WKIA5248E
E
AV switch (+) (A)
Continuity ()
F
Connector
Terminal
12
M98
13
Ground
No
G
14
OK or NG
H
OK >> GO TO 3.
NG >> Repair harness.
3.CHECK HARNESS
I
1. Disconnect spiral cable connector.
2. Check continuity between bluetooth control unit connector B506 (A) terminals 12, 13, and 14 and spiral
cable connector M30 (B) terminals 24, 32, and 31.
J
Terminals
Bluetooth control unit (A)
Spiral cable (B)
Continuity
Connector Terminal Connector
Terminal
12
24
B506
13
M30
32
Yes
14
31
OK or NG
OK >> GO TO 4. NG >> Repair harness.
4.SPIRAL CABLE CHECK
Check continuity between spiral cable connector terminals.
Connector Terminal Connector Terminal
Continuity
32
16
M30
31
M102
17
Yes
24
20
OK or NG
OK >> GO TO 5. NG >> Replace spiral cable. Refer to SRS-36 .
AV L M
WKIA5249E
N O P
WKIA4424E
Revision: August 2007
AV-147
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION >
5.CHECK STEERING SWITCH RESISTANCE
Check resistance between steering wheel audio control switch terminals.
Terminal
Signal name
Condition
Resistance ()
(Approx.)
Seek (down) Depress (station) down switch.
165
16 17 Power
Depress power switch.
0
Volume (down) Depress volume down switch.
652
Seek (up)
Depress (station) up switch.
165
20 17 Mode
Depress mode switch.
0
Volume (up) Depress volume up switch.
652
OK or NG
OK >> Inspection End. NG >> Replace steering switch. Refer to AV-72, "Removal and Installation".
Removal and Installation
DISPLAY UNIT
Removal 1. Remove cluster lid D. Refer to IP-13, "Cluster Lid D". 2. Remove the display unit assembly (1) by removing the screws
(A) and disconnecting the harness connectors (2).
WKIA4457E INFOID:0000000001719459
3. Remove the rear cover (1) and front cover (2).
LKIA0712E
LKIA0717E
Revision: August 2007
AV-148
2008 Quest
INTEGRATED DISPLAY SYSTEM
< SERVICE INFORMATION > 4. Remove the screws (A) and the display screen (1).
Installation Installation is in reverse order of removal.
DISPLAY CONTROL UNIT
Removal 1. Remove display unit assembly. Refer to "DISPLAY UNIT". 2. Remove the screws (A) and the display control unit (1).
Installation Installation is in reverse order of removal.
Revision: August 2007
AV-149
A B C
LKIA0711E
D E F G H I
LKIA0720E
J AV
L M N O P
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
NAVIGATION SYSTEM
System Description
NOTE: Refer to NAVI System Owner's Manual for system operation.
The navigation system periodically calculates the vehicle's current position according to the following three signals: Travel distance of the vehicle as determined by the vehicle speed sensor, turning angle of the vehicle as determined by the gyroscope (angular velocity sensor), and the direction of vehicle travel as determined by the GPS antenna (GPS information). The current position of the vehicle is then identified by comparing the calculated vehicle position with map data read from the map DVDROM, which is stored in the DVD-ROM drive (map-matching), and indicated on the screen with a current-location mark.
By comparing the vehicle position detection results found by the GPS and by map-matching, more accurate vehicle position data can be used. The current vehicle position will be calculated by detecting the distance the vehicle moved from the previous calculation point and its direction.
INFOID:0000000001719460 WKIA1371E
SEL684V
TRAVEL DISTANCE
Travel distance calculations are based on the vehicle speed sensor input signal. Therefore, the calculation may become incorrect as the tires wear down. To prevent this, an automatic distance fine adjustment function has been adopted. Adjustments can be made in extreme cases (such as driving with tire chain fitted on tires). Refer to AV-173, "Confirmation/Adjustment Mode".
TRAVEL DIRECTION
Change in the travel direction of the vehicle is calculated by a gyroscope (angular velocity sensor) and a GPS antenna (GPS information). As the gyroscope and GPS antenna have both merit and demerit, input signals from them are prioritized in each situation. However, this order of priority may change in accordance with more detailed travel conditions so that the travel direction is detected more accurately.
Type
Advantage
Gyroscope (angular velocity sensor)
· Can detect the vehicle's turning angle quite accurately.
GPS antenna (GPS information)
· Can detect the vehicle's travel direction (North/South/East/West).
Disadvantage
· Direction errors may accumulate when the vehicle is driven for long distances without stopping.
· Correct direction cannot be detected when the vehicle speed is low.
MAPMATCHING
Revision: August 2007
AV-150
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
Mapmatching is a function that repositions the vehicle on the road map when a new location is judged to be the most accurate. This is done by comparing the current vehicle position, calculated by the method described in the position detection principle, with the road map data around the vehicle, read from the map DVD-ROM stored in the DVD-ROM drive. Therefore, the vehicle position may not be corrected after the vehicle is driven over a certain distance or time in which GPS information is hard to receive. In this case, the current-location mark on the display must be corrected manually. CAUTION: The road map data is based on data stored in the map DVDROM. · In map-matching, alternative routes to reach the destination will be
shown and prioritized, after the road on which the vehicle is currently driven has been judged and the current-location mark has been repositioned. If there is an error in distance and/or direction, the alternative routes will be shown in different order of priority, and the wrong road can be avoided. If two roads are running in parallel, they are of the same priority. Therefore, the current-location mark may appear on either of them alternately, depending on maneuvering of the steering wheel and configuration of the road.
A
B
C
SEL685V
D
E
F
G
SEL686V
· Map-matching does not function correctly when the road on which the vehicle is driving is new and not recorded in the map DVDROM, or when the road pattern stored in the map data and the actual road pattern are different due to repair. When driving on a road not present in the map, the map-matching function may find another road and position the current-location mark on it. Then, when the correct road is detected, the currentlocation mark may leap to it.
· Effective range for comparing the vehicle position and travel direction calculated by the distance and direction with the road data read from the map DVD-ROM is limited. Therefore, when there is an excessive gap between the current vehicle position and the position on the map, correction by map-matching is not possible.
H
I
J
SKIA0613E
AV
GPS (GLOBAL POSITIONING SYSTEM)
L
GPS (Global Positioning System) has been developed and con-
trolled by the US Department of Defense. The system utilizes GPS
satellite (NAVSTAR), sending out radio waves while flying on an orbit
M
around the earth at the height of approx. 21,000 km (13,000 miles).
The GPS receiver calculates the vehicle's position in three dimen-
sions (latitude/longitude/altitude) according to the time lag of the radio waves received from four or more GPS satellites (three-dimen-
N
sional positioning). If radio waves were received only from three
GPS satellites, the GPS receiver calculates the vehicle's position in
two dimensions (latitude/longitude), utilizing the altitude data calcu-
O
lated previously by using radio waves from four or more GPS satellites (two-dimensional positioning).
SEL526V
Accuracy of the GPS will deteriorate under the following conditions. · In two-dimensional positioning, the GPS accuracy will deteriorate when the altitude of the vehicle position
P
changes.
· There may be an error of approximately 10 m (30 ft.) in position detected by three-dimensional positioning,
which is more accurate than two-dimensional positioning. The accuracy can be even lower depending on the
arrangement of the GPS satellites utilized for the positioning.
· Position detection is not possible when the vehicle is in an area where radio waves from the GPS satellite do
not reach, such as in a tunnel, parking lot in a building, and under an elevated highway. Radio waves from
the GPS satellites may not be received when some object is located over the GPS antenna.
Revision: August 2007
AV-151
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
· Position correction by GPS is not available while the vehicle is stopped.
COMPONENT DESCRIPTION
NAVI Control Unit · The gyro (angular speed sensor) and the DVD-ROM drive are
built-in units that control the navigation functions. · Signals are received from the gyro, the vehicle speed sensor, and
the GPS antenna. Vehicle location is determined by combining this data with the data contained in the DVD-ROM map. Location information is shown on liquid crystal display (display unit). · Maps, traffic control regulations, and other pertinent information can be easily read from the DVD-ROM disc. · The oscillator gyro sensor is used to detect changes in vehicle steering angle.
WKIA4480E
Map DVD-ROM
· The map DVD-ROM has maps, traffic control regulations, and other pertinent information. · To improve DVD-ROM map matching and route determination functions, the DVD-ROM uses an exclusive
Nissan format. Therefore, the use of a DVD-ROM provided by other manufacturers cannot be used.
Display Control Unit The display control unit coordinates audio and video signals between the NAVI control unit and the display unit.
Display Unit Displays NAVI system information.
AV Switch AV switch allows user to input NAVI display settings. Self diagnostics are initiated using AV switch.
GPS Antenna GPS antenna sends signals to NAVI control unit.
CAN Communication System Description
INFOID:0000000001719461
Refer to LAN-3, "CAN Communication System".
Revision: August 2007
AV-152
2008 Quest
< SERVICE INFORMATION >
Component Parts Location
NAVIGATION SYSTEM
INFOID:0000000001719462
A
B
C
D
E
F
G
H
I
J
AV
L
WKIA5230E
1. Steering wheel audio control switches 2. BCM M18, M19
3. Combination meter M24
M
4. Display unit M93
5. GPS antenna
6. Display control unit M94, M95
7. Combination switch M28
8. Audio unit M43, M45
9. AV switch M98
10. Bluetooth control unit B506, B507
11. NAVI control unit B504, B505
N
(view with seat removed)
O
P
Revision: August 2007
AV-153
2008 Quest
< SERVICE INFORMATION >
Schematic
NAVIGATION SYSTEM
INFOID:0000000001719463
Revision: August 2007
AV-154
WKWA4786E
2008 Quest
< SERVICE INFORMATION >
Wiring Diagram - NAVI -
NAVIGATION SYSTEM
Revision: August 2007
AV-155
INFOID:0000000001719464
A B C D E F G H I J AV L M N O
WKWA4787E
P
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Revision: August 2007
AV-156
WKWA4788E
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Revision: August 2007
AV-157
A B C D E F G H I J AV L M N O
WKWA4790E
P
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Revision: August 2007
AV-158
WKWA4791E
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Revision: August 2007
AV-159
A B C D E F G H I J AV L M N O
WKWA4789E
P
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Revision: August 2007
AV-160
WKWA4792E
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Revision: August 2007
AV-161
A B C D E F G H I J AV L M N O
WKWA4793E
P
2008 Quest
< SERVICE INFORMATION >
Schematic
NAVIGATION SYSTEM
INFOID:0000000001719465
Revision: August 2007
AV-162
WKWA4794E
2008 Quest
< SERVICE INFORMATION >
Wiring Diagram - COMM -
NAVIGATION SYSTEM
Revision: August 2007
AV-163
INFOID:0000000001719466
A B C D E F G H I J AV L M N O
WKWA4795E
P
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Revision: August 2007
AV-164
WKWA4796E
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Revision: August 2007
AV-165
A B C D E F G H I J AV L M N O
WKWA4797E
P
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
NAVI Control Unit Harness Connector Terminal Layout
INFOID:0000000001719467
Terminal and Reference Value for NAVI Control Unit
Terminal No. (Wire color)
+
1 (B) Ground
Item Ground
Signal input/ output
Ignition switch
ON
Condition Operation
2 (Y/R) Ground Battery power Input OFF
5 (V) Ground ACC signal Input ACC
12 (L)
14 (P)
Voice guide signal
Output
ON
Press the "GUIDE/ VOICE" button.
13
Shield ground
44 (R)
Select "Display Di-
47
RGB signal (R: red)
Output
ON
agnosis (NAVI)" of CONFIRMATION/
ADJUSTMENT
function.
45 (W)
Select "Display Di-
47
RGB signal (G: green)
Output
ON
agnosis (NAVI)" of CONFIRMATION/
ADJUSTMENT
function.
Revision: August 2007
AV-166
WKIA5211E INFOID:0000000001719468
Voltage (Approx.)
0V Battery voltage Battery voltage
Example of symptom
System does not work properly. System does not work properly.
Only route guide and operation guide are not heard.
SKIA0171J
Audio noise interference.
NAVI screen looks bluish.
SKIA4977E
NAVI screen looks reddish.
SKIA4978E
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Terminal No. (Wire color)
+
Signal
Condition
Item
input/ Igni-
output tion
Operation
switch
46 (B)
Select "Display Di-
47
RGB signal (B: blue)
Output
ON
agnosis (NAVI)" of CONFIRMATION/
ADJUSTMENT
function.
47
Shield ground
Voltage (Approx.)
A
Example of symptom
B
C
NAVI screen looks yellowish.
D
SKIA4979E
Video display in-
terference.
E
48 (Y)
49
RGB synchronizing Output ON
signal
Press the "MAP" button.
49
Shield ground
61 (R/L)
Ground
Illumination signal
Input
Lighting switch in 1st position
ON Lighting switch is OFF
63 (G) Ground Ignition signal Input ON
65 (G/W) Ground
Reverse signal
Input
A/T selector lever in R position
ON A/T selector lever not in R position
66 (P/L)
Ground
Vehicle speed signal
(8-pulse)
Input
When vehicle speed ON is approx. 40 km/h
(25 MPH)
68
Shield ground
SKIA0164E
Battery voltage
3V or less
Battery voltage Battery voltage
0V
F
NAVI screen is rolling.
G
Video display in-
terference.
H
Display unit illu-
mination does
not change
I
when lighting
switch is turned
to 1st position.-
Navigation cur-
J
rent location
mark does not
indicate the cor- AV
rect position.
The navigation
current-location mark moves
L
strangely when
the vehicle is
moving back-
M
wards.
Navigation cur-
N
rent location
mark does not
indicate the cor-
rect position.
O
PKIA1935E
P
Revision: August 2007
AV-167
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Terminal No. (Wire color)
+
Signal
Condition
Item
input/ Igni-
output tion
Operation
switch
Voltage (Approx.)
Example of symptom
69 (G)
Ground
Communication signal (+)
Input/ output
ON
System does not work properly.
SKIA0175E
70 (R)
Ground
Communication signal ()
Input/ output
ON
System does not work properly.
73
74
GPS signal Input ON
Connector is not connected.
Terminal and Reference Value for Display Control Unit
SKIA0176E
Navigation sys-
5V
tem GPS correction is not
possible.
INFOID:0000000001719469
Refer to AV-117, "Terminal and Reference Value for Display Control Unit".
Terminal and Reference Value for Display Unit
INFOID:0000000001719470
Refer to AV-114, "Terminal and Reference Value for Display Unit (With Color Display)".
Terminal and Reference Value for AV Switch
INFOID:0000000001719471
Refer to AV-119, "Terminal and Reference Value for AV Switch".
Terminal and Reference Value for BCM
INFOID:0000000001719472
Refer to BCS-11, "Terminal and Reference Value for BCM".
On Board Self-Diagnosis Function
INFOID:0000000001719473
DESCRIPTION
· Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/ ADJUSTMENT mode operated manually.
· Self-diagnosis mode checks for connections between the units constituting this system, analyzes each individual unit at the same time, and displays the results on the LCD screen.
· CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and judgment by an operator (trouble that cannot be automatically judged by the system), to check/change the set value, and to display the History of Errors of the navigation system.
DIAGNOSIS ITEM
Mode Self-diagnosis (DCU) Self-diagnosis (NAVI)
Revision: August 2007
Description
Display control unit diagnosis.
· NAVI Control unit diagnosis (DVD-ROM drive) will not be diagnosed when no map DVD-ROM is in it.
· Analyzes connection between the NAVI control unit and the GPS antenna and operation of each unit.
AV-168
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Mode Display diagnosis
Description
A
On display control unit mode, color tone and shading of the screen can be
checked by the display of a color bar and a gray scale.
Vehicle signals
On display control unit mode, analyzes the following vehicle signals: Vehi-
cle speed signal, light signalNOTE, ignition switch signal, and reverse signal. B
Auto Climate Control
A/C self-diagnosis of A/C system.
Display diagnosis
On NAVI C/U mode, color tone and shading of the screen can be checked C
by the display of a color bar and a gray scale.
Vehicle signals
On NAVI C/U mode, analyzes the following vehicle signals: Vehicle speed signal, light signal, ignition switch signal, and reverse signal.
D
Diagnosis results previously stored in the memory (before turning ignition
History of Errors
switch ON) are displayed in this mode. Time and location when/where the
CONFIRMATION/
errors occurred are also displayed.
ADJUSTMENT Navigation
Display Longitude & Latitude
Display the map. Use the joystick to adjust position. Longitude and latitude will be displayed.
E
Under ordinary conditions, the navigation system distance measuring func- F
Naviga- Speed Cali-
tion
bration
tion will automatically compensate for minute decreases in wheel and tire diameter caused by tire wear or low -pressure. Speed calibration immediately restores system accuracy in cases such as when distance calibration
is needed because of the use of tire chains in inclement weather.
G
Angle ad- Corrects difference between actual turning angle of a vehicle and turning
justment
angle of the car mark on the display.
H
Initialize Lo- This mode is for initializing the current location. Use when the vehicle is
cation
transported a long distance on a trailer, etc.
CAN DIAG SUPPORT MONITOR
Display status of CAN communication.
I
NOTE:
Make the status that is set by D/N function be shown.
Self-Diagnosis Mode (DCU)
INFOID:0000000001719474
J
OPERATION PROCEDURE
1. Start the engine.
AV
2. Turn the audio system off.
3. While pressing the "4" button, turn the volume control dial clock-
wise or counterclockwise for 30 clicks or more. (When the self-
L
diagnosis mode is started, a short beep will be heard.)
M
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Self-Diagnosis (NAVI)", "Confirmation/ Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
N
WKIA5232E
O P
Revision: August 2007
AV-169
WKIA4301E
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
5. Perform self-diagnosis by selecting the "Self-diagnosis". · Self-diagnosis subdivision screen will be shown and the operation enters the self-diagnosis mode. · A bar graph shown below the self-diagnosis subdivision screen indicates progress of the diagnosis.
6. When the self-diagnosis completes, optional part confirmation screen will be shown. · When connection of an optional part is judged error, a screen to check if the optional part is actually fitted on the vehicle or not will be shown. When fitted, select the switch of the part on the screen and press "End". Then the "SELF DIAGNOSIS" screen will be shown. · When the optional part is connected normally, the switch for the part will not appear on the screen.
SKIA4208E
SKIA4209E
7. On the "SELF DIAGNOSIS" screen, each unit name will be colored according to the diagnosis result, as follows.
Green : Not malfunctioning.
Yellow : Cannot be judged by self-diagnosis results.
Red Gray
: Unit is malfunctioning. : Diagnosis has not been done.
· If several malfunctions are present in a unit, color of its switch on the screen will be either red, yellow, or gray, determined by the malfunction of the highest priority.
WKIA4304E
8. Select a switch on the "SELF DIAGNOSIS" screen and comments for the diagnosis results will be shown. · When the switch is green, the following comment will be shown. "Self-diagnosis did not detect any error. Please refer to the "confirmation/adjustment" function or service manual for more detailed diagnosis information." · When the switch is yellow, the following comment will be shown. "Connection to the following unit is abnormal. See the service manual for further details". · When the switch is red, the following comment will be shown. "DCU is abnormal".
SELFDIAGNOSIS RESULT
WKIA4479E
Quick reference table
1. Select a malfunctioning diagnosis No. in the diagnosis result quick reference table. 2. Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to AV-
163, "Wiring Diagram - COMM -". 3. Turn the ignition switch OFF and perform self-diagnosis again.
Revision: August 2007
AV-170
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Switch color
DCU*
Screen switch
DISPLAY
Audio unit
A
Navigation
GPS antenna
Diagnosis No.
Red
×
1
B
×
x
2
Gray
x
×
x
3
C
×
×
4
*: DCU = Display control unit
CAUTION: · When AV switch has a malfunction, you cannot start. Refer to AV-204, "Unable to Operate All of AV
D
Switches (Unable to Start Self-Diagnosis)".
· When display unit has a malfunction, you cannot start. Refer to AV-202, "Screen Is Not Shown".
E Self-Diagnosis Codes
Diagnosis No.
Possible cause
1
Display control unit malfunction.
2
Display communication line between display control unit and display unit.
3
Audio unit power supply and ground circuit. Audio communication line between display control unit and audio unit.
4
NAVI control unit power supply and ground circuit. AV communication line between display control unit and NAVI control unit.
Self-Diagnosis Mode (NAVI)
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the "4" button, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When the selfdiagnosis mode is started, a short beep will be heard.)
Reference
page
F
Refer to AV-148.
Refer to AV-190.
G
Refer to AV-189.
Refer to AV-215.
H
INFOID:0000000001719475
I
J
AV
L
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Self-Diagnosis (NAVI)", "Confirmation/ Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
WKIA5232E
M
N
O
P
WKIA4301E
Revision: August 2007
AV-171
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
5. Perform self-diagnosis by selecting the "Self-diagnosis (NAVI)". · Self-diagnosis subdivision screen will be shown and the operation enters the self-diagnosis mode. · A bar graph shown below the self-diagnosis subdivision screen indicates progress of the diagnosis.
6. On the "SELF DIAGNOSIS" screen, each unit name will be colored according to the diagnosis result, as follows.
SKIA4212E
Green : Not malfunctioning. Yellow : Cannot be judged by self-diagnosis results. Red : Unit is malfunctioning. Gray : Diagnosis has not been done.
· If several malfunctions are present in a unit, color of its switch on the screen will be either red, yellow, or gray, determined by the malfunction of the highest priority.
WKIA4309E
7. Select a switch on the "SELF DIAGNOSIS" screen and com-
ments for the diagnosis results will be shown.
· When the switch is green, the following comment will be
shown. "Self-diagnosis was successful. Further diagnosis and
adjustments are recommended. Follow the "Confirmation and
Adjustments" menu or refer to the service manual."
· When the switch is yellow, the following comment will be
shown. "Connection to the following unit is abnormal. See the
service manual for further details".
· When the switch is red, the following comment will be shown.
"Center Control Unit is abnormal".
· When the switch is gray, the following comment will be shown.
SKIA4211E
"Self-diagnosis for DVD-ROM DRIVER of NAVI was not conducted because no DVD-ROM was avail-
able."
SELFDIAGNOSIS RESULT
Quick reference table
1. Select a malfunctioning diagnosis No. in the diagnosis result quick reference table. 2. Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to AV-
163, "Wiring Diagram - COMM -". 3. Turn the ignition switch OFF and perform self-diagnosis again.
Screen switch
Switch color
Center control unit*
Red
×
Gray
×
×
Yellow
×
×
*: Center Control unit = NAVI control unit CAUTION:
GPS antenna ×
Diagnosis No.
1 2 3 4 5
Revision: August 2007
AV-172
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
· When AV switch has a malfunction, you cannot start. Refer to AV-204, "Unable to Operate All of AV
Switches (Unable to Start Self-Diagnosis)".
A
· When display unit has a malfunction, you cannot start. Refer to AV-202, "Screen Is Not Shown".
Self-diagnosis codes
Diagnosis No.
Possible cause
B
Reference page
1
NAVI control unit malfunction.
Refer to
C
AV-215
2
No map DVD-ROM is inserted in the NAVI control unit.
Refer to
AV-193
D
When "DVD-ROM error. Please check disc." is shown.
1. Eject map DVD-ROM and check if it is compatible with the system.
3
2. Check ejected DVD-ROM for dirt, damage, and warpage.
Refer to
3. If no error is found, insert a known good map DVD-ROM of the same type and perform self-diag- AV-193
E
nosis again. If same result is shown, the NAVI control unit is malfunctioning. If result is normal, the
map DVD-ROM is malfunctioning.
4
If "Error found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in accordance Refer to
F
with service manual" is shown, carry out same inspection as diagnosis No. 3.
AV-193
GPS antenna system.
1. Visually check for a broken wire in the GPS antenna coaxial cable.
G
5
2. Disconnect GPS antenna connector, and make sure approximately 5V is supplied from the NAVI control unit. If not, the NAVI control unit is malfunctioning. If 5V is supplied, replace the GPS an-
Refer to AV-215
tenna. If the connection is still malfunction after the replacement of the GPS antenna, the NAVI
control unit is malfunctioning.
H
Confirmation/Adjustment Mode
INFOID:0000000001719476
OPERATION PROCEDURE
I
1. Start the engine.
2. Turn the audio system off.
J
3. While pressing the "4" button, turn the volume control dial clock-
wise or counterclockwise for 30 clicks or more. (When the self-
diagnosis mode is started, a short beep will be heard.)
AV
L
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Self-Diagnosis (NAVI)", "Confirmation/ Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
M
WKIA5232E
N
O
P
WKIA4301E
Revision: August 2007
AV-173
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > 5. When "Confirmation/Adjustment" is selected on the initial trouble
diagnosis screen, the operation will enter the CONFIRMATION/ ADJUSTMENT mode. In this mode, check and adjustment of each item will become possible. 6. The initial trouble diagnosis screen will be shown, and items "Display Diagnosis", "Vehicle Signals", "Auto Climate Control" and "Navigation" will become selective. 7. Select each switch on "CONFIRMATION/ADJUSTMENT" screen to display the relevant diagnosis screen.
DISPLAY DIAGNOSIS
SKIA4220E
WKIA4316E
· When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.
R (red) signal error
: Screen looks bluish
G (green) signal error B (blue) signal error
: Screen looks reddish : Screen looks yellowish
· When the color of the screen looks unusual, refer to AV-197, "Color of RGB Image Is Not Proper (All Screens Look Bluish)", AV-198, "Color of RGB Image Is Not Proper (All Screens Look Reddish)" and AV199, "Color of RGB Image Is Not Proper (All Screens Look Yellowish)".
VEHICLE SIGNALS
· A comparison check can be made of each actual vehicle signal and the signals recognized by the system. CAUTION: In case of confirming light signal, set D/N mode to ON/OFF of lighting switch (normal setting). · OFF: D (Day mode) · ON: N (Night mode) Unless above setting, light signal (ON/OFF) may not be accurately displayed.
WKIA4306E
Diagnosis item Vehicle speed Revision: August 2007
Display ON OFF
Condition Vehicle speed > 0 km/h (0 MPH) Vehicle speed = 0 km/h (0 MPH) Ignition switch in ACC position
AV-174
Remarks Changes in indication may be delayed by approx. 1.5 seconds. This is normal.
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Diagnosis item Light
Display ON OFF
Condition Lighting switch ON Lighting switch OFF
Remarks
A
ON
Ignition switch ON
IGN
OFF
Ignition switch ACC
B
Reverse
ON OFF
Selector lever in R position
Selector lever in other than R position
Changes in indication may be delayed by approx. 1.5 seconds. This is normal.
C
Ignition switch in ACC position
· If vehicle speed is NG, refer to AV-185, "Vehicle Speed Signal Inspection for Display Control Unit".
D
· If light is NG, refer to AV-186, "Illumination Signal Inspection for Display Control Unit".
· If IGN is NG, refer to AV-187, "Ignition Signal Inspection for Display Control Unit".
· If reverse is NG, refer to AV-187, "Reverse Signal Inspection for Display Control Unit". E
NAVIGATION
1. The initial trouble diagnosis screen will be shown, and items
"Display Diagnosis", "Vehicle Signals", "Navigation", "Error His-
F
tory" and "Delete Unit Connection Log" will be displayed.
2. Select each switch on "CONFIRMATION/ADJUSTMENT"
screen to display the relevant diagnosis screen.
G
DISPLAY DIAGNOSIS
H
WKIA4311E
I
J
AV
L
M
N
WKIA4317E
· When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.
O
R (red) signal error
: Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error
: Screen looks yellowish
P
· When the color of the screen looks unusual, refer to AV-195, "Color of RGB Image Is Not Proper (Only NAVI Screen Looks Bluish)", AV-196, "Color of RGB Image Is Not Proper (Only NAVI Screen Looks Reddish)" and AV-199, "Color of RGB Image Is Not Proper (All Screens Look Yellowish)".
VEHICLE SIGNALS
Revision: August 2007
AV-175
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
· A comparison check can be made of each actual vehicle signal and the signals recognized by the system. CAUTION: In case of confirming light signal, set D/N mode to ON/OFF of light switch (normal setting). · OFF: D (Day mode) · ON: N (Night mode) Unless above setting, light signal (ON/OFF) may not be accurately displayed.
WKIA4306E
Diagnosis item
Display
Condition
Remarks
Vehicle speed
ON OFF
Vehicle speed > 0 km/h (0 MPH) Vehicle speed = 0 km/h (0 MPH) Ignition switch in ACC position
Changes in indication may be delayed by approx. 1.5 seconds. This is normal.
ON
Lighting switch ON
Light
OFF
Lighting switch OFF
ON
Ignition switch ON
IGN
OFF
Ignition switch ACC
Reverse
ON OFF
Selector lever in R position Selector lever in other than R position Ignition switch in ACC position
Changes in indication may be delayed by approx. 1.5 seconds. This is normal.
· If vehicle speed is NG, refer to AV-184, "Vehicle Speed Signal Inspection for NAVI Control Unit". · If light is NG, refer to AV-186, "Illumination Signal Inspection for NAVI Control Unit". · If IGN is NG, refer to AV-186, "Ignition Signal Inspection for NAVI Control Unit". · If reverse is NG, refer to AV-187, "Reverse Signal Inspection for NAVI Control Unit".
ERROR HISTORY
WKIA4318E
DIAGNOSIS BY ERROR HISTORY
The "Self-diagnosis" results indicate whether an error occurred during the period from when the ignition switch is turned to ON until "Self-diagnosis" is completed. If an error occurred before the ignition switch was turned to ON and does not occur again until the "Self-diagnosis" is completed, the diagnosis result will be judged normal. Therefore, those errors in the past, which cannot be found by the "Self-diagnosis", must be found by diagnosing the "Error History".
Revision: August 2007
AV-176
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
The error history displays the time and place of the most recent occurrence of that error. However, take note of
the following points.
A
· Correct time of the error occurrence may not be displayed when the GPS antenna substrate within the NAVI
control unit has malfunctioned.
· Place of the error occurrence is represented by the position of the current-location mark at the time when the error occurred. If the current-location mark has deviated from the correct position, then the place of the error
B
occurrence may be located correctly.
· The maximum number of occurrences which can be stored is 50. For the 51st and later occurrences, the dis-
played number remains 50.
C
When a reproducible malfunction occurred but its cause cannot be identified because several errors are
present, record the item, number and place (longitude/latitude) of error occurrence (or delete the error history),
then turn the ignition switch from OFF to ON to reproduce the malfunction. Check the error history to find the items which show an increased number of occurrences, and diagnose the item.
D
Error item
Possible causes Action/symptom
Example of symptom
E
Communications malfunction between NAVI control unit and inter-
nal gyro.
Gyro sensor · Perform self-diagnosis. disconnected · When the NAVI control unit is judged normal by self-diagnosis,
· Navigation location detection performance has deteriorated. (Angular velocity cannot be detected.)
F
the symptom may be intermittent, caused by strong radio interfer-
ence.
G
Communication error between NAVI control unit and internal GPS
substrate.
· Navigation location detection performance has
GPS discon- · Perform self-diagnosis.
nected
· When the NAVI control unit is judged normal by self-diagnosis,
deteriorated. (Location correction using GPS is not performed.)
H
the symptom may be intermittent, caused by strong radio interfer- · GPS receiving status remains gray.
ence.
I
Malfunctioning transmission wires to NAVI control unit and internal
GPS trans- GPS substrate.
mission cable
· Perform self-diagnosis.
· During self-diagnosis, GPS diagnosis is not
· When the NAVI control unit is judged normal by self-diagnosis,
performed.
J
malfunction
the symptom may be intermittent, caused by strong radio interfer-
ence.
GPS input line connection error
Malfunctioning receiving wires to NAVI control unit and internal
AV
GPS substrate.
· Navigation location detection performance has
deteriorated.
· Perform self-diagnosis.
(Location correction using GPS is not per-
· When the NAVI control unit is judged normal by self-diagnosis,
formed.)
L
the symptom may be intermittent, caused by strong radio interfer- · GPS receiving status remains gray.
ence.
Oscillating frequency of the GPS substrate frequency synchronizing
M
GPS TCX0 over GPS TCX0 under
oscillation circuit exceeded (or below) the specification
· Perform self-diagnosis. · When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interference, or the control unit may have been subjected to excessively
· Navigation location detection performance has deteriorated. (Location correction using GPS is not performed.)
· GPS receiving status remains gray.
N
high or low temperatures.
Contents of ROM (or RAM) in GPS substrate are malfunctioning. · Location detection accuracy of the navigation O
GPS ROM
system will deteriorate, depending on the error
malfunction · Perform self-diagnosis.
area in the memory, because GPS cannot
GPS RAM
· When the NAVI control unit is judged normal by self-diagnosis,
make correct positioning.
malfunction
the symptom may be intermittent, caused by strong radio interfer- (Location correction using GPS is not per-
P
ence.
formed.)
Revision: August 2007
AV-177
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Error item
Possible causes Action/symptom
Example of symptom
GPS RTC malfunction
Clock IC in GPS substrate is malfunctioning.
· Perform self-diagnosis. · When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interference.
· Correct time may not be displayed. · After the power is turned on, the system al-
ways takes some time until GPS positioning becomes possible. (The GPS receiver starts positioning without re-collecting the whole satellite information when it judged the data stored in the receiver is correct.) · Correct time of error occurrence may not be stored in the error history.
GPS antenna disconnected
Malfunctioning connection between GPS substrate in NAVI control unit and GPS antenna.
· Perform self-diagnosis. · When connection between NAVI control unit and GPS antenna is
judged normal by self-diagnosis, the symptom may be intermittent, caused by impact or vibration.
· Navigation location detection performance has deteriorated. (Location correction using GPS is not performed.)
· GPS receiving status remains gray.
Low voltage of GPS
The power voltage supplied to the GPS circuit board has decreased.
· Perform self-diagnosis. · When connection between NAVI control unit and GPS antenna is
judged normal by self-diagnosis, the symptom may be intermittent, caused by impact or vibration.
· Navigation location detection performance has deteriorated. (Location correction using GPS is not performed.)
· GPS receiving status remains gray.
Malfunctioning NAVI control unit.
-
DVD-ROM Malfunction DVD-ROM Read error DVD-ROM Response Error
Dedicated map DVD-ROM is in the system, but the data cannot be read.
· Is map DVD-ROM damaged, warped, or dirty? - If damaged or warped, the map DVD-ROM is malfunctioning. - If dirty, wipe the DVD-ROM clean with a soft cloth. · Perform self-diagnosis. · When NAVI control unit is judged normal by self-diagnosis, the
symptom is judged intermittent, caused by vibration.
· The map of a particular location cannot be displayed.
· Specific guidance information cannot be displayed.
· Map display is slow. · Guidance information display is slow. · System has been affected by vibration.
NAVIGATION
1. The initial trouble diagnosis screen will be shown, and items "Steering Angle Adjustment" and "Speed Calibration" will become selective.
2. Select each switch on "NAVIGATION" screen to display the relevant diagnosis screen.
Angle adjustment · Adjusts turning angle output detected by the gyroscope.
WKIA4312E
Speed Calibration Revision: August 2007
AV-178
WKIA4314E
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > · During normal driving, distance error caused by tire wear and tire
pressure change is automatically adjusted for by the automatic distance correction function. This function, on the other hand, is for immediate adjustment, in cases such as driving with tire chain fitted on tires.
CAN Diagnostic Support Monitor
OPERATION PROCEDURE
1. Start the engine. 2. Turn the audio system off. 3. While pressing the "4" button, turn the volume control dial clock-
wise or counterclockwise for 30 clicks or more. (When the selfdiagnosis mode is started, a short beep will be heard.)
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Self-Diagnosis (NAVI)", "Confirmation/ Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
5. Select "CAN DIAG SUPPORT MONITOR".
6. Display status of CAN communication.
Item CAN_COMM CAN_CIRC_1 CAN_CIRC_2 CAN_CIRC_3 CAN_CIRC_4 CAN_CIRC_5 CAN_CIRC_6 CAN_CIRC_7 CAN_CIRC_8 CAN_CIRC_9
Content OK/NG OK/UNKWN OK/UNKWN OK/UNKWN OK/UNKWN OK/UNKWN OK/UNKWN OK/UNKWN OK/UNKWN OK/UNKWN
Revision: August 2007
Error counter 0-50 0-50 0-50 0-50 0-50 0-50 0-50 0-50 0-50 0-50
AV-179
A
B
C
WKIA4315E
D
INFOID:0000000001719477
E
F
G H
WKIA5232E
I
J
AV
L
WKIA4301E
M
N
O
P
WKIA4307E
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
· If the ignition is turned on and UNKWN is shown on the screen, the value of the counter will be up. (MAX50) · The value of the counter does not change if the ignition changes to OFF. (MAX50) · If the counter shows the value of 50 and UNKWN is shown, the value of 50 will not be changed.
AV Switch Self-Diagnosis Function
INFOID:0000000001719478
Refer to AV-49, "AV Switch Self-Diagnosis Function".
Power Supply and Ground Circuit Inspection for NAVI Control Unit
1.CHECK FUSES
Make sure the following fuses for the NAVI control unit are not blown.
INFOID:0000000001719479
Connector
Terminals
Terminal
Power source
Fuse No.
B504
2
Battery power
17
5
ACC or ON power
4
B505
63
ON or START
12
OK or NG
OK >> GO TO 2. NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUITS
1. Disconnect NAVI control unit connectors. 2. Check voltage between connector terminals and ground as fol-
lows.
Terminals
Ignition switch position
(+)
()
OFF
ACC
ON
Connector
Terminal
B504 (A)
2
Battery voltage
Battery voltage
Battery voltage
5
Ground
0V
Battery voltage
Battery voltage
B505 (B)
63
0V
0V
Battery voltage
OK or NG
OK >> GO TO 3. NG >> Check harness for open between NAVI control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. 2. Check continuity between the following NAVI control unit termi-
nals and ground.
WKIA5252E
Terminals
Connector
Terminal
--
B504
1
Ground
OK or NG
OK >> Inspection End. NG >> Repair or replace harness.
Ignition switch OFF
Continuity Yes
WKIA4207E
Revision: August 2007
AV-180
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
Power Supply and Ground Circuit Inspection for Display Control Unit
1.CHECK FUSE
INFOID:0000000001719480
A
Make sure the following fuses of the display control unit are not blown. B
Connector
Terminals
Terminal 1
Power source Battery power
Fuse No.
C
19
M94
10
ACC power
4
12
Ignition switch ON or START
12
D
OK or NG
OK >> GO TO 2. NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG- E
3.
2.CHECK POWER SUPPLY CIRCUIT F 1. Disconnect display control unit connector M94. 2. Check voltage between connector terminals and ground as fol-
lows. G
Terminals
Ignition switch position
(+)
()
OFF
ACC
ON
H
Connector Terminal
1
Battery voltage
Battery voltage
M94
10
Ground
0V
Battery voltage
Battery voltage
12
0V
0V
OK or NG
OK >> GO TO 3. NG >> Check harness for open between display control unit and fuse.
3.CHECK GROUND CIRCUIT
I
WKIA5255E
J
AV
1. Turn ignition switch OFF.
2. Check continuity between the following display control unit ter-
L
minal and ground.
Terminals
M
Ignition switch Continuity
Connector
Terminal
--
M94
3
Ground
OFF
Yes
OK or NG
OK >> Inspection End. NG >> Repair or replace harness.
N O
SKIA4293E
Power Supply and Ground Circuit Inspection for Display Unit
1. CHECK POWER SUPPLY AND GROUND CIRCUIT FOR DISPLAY CONTROL UNIT
INFOID:0000000001719481
P
1. Check power supply and ground circuit for display control unit. Refer to AV-181, "Power Supply and Ground Circuit Inspection for Display Control Unit".
OK or NG
OK >> GO TO 2. NG >> Repair malfunctioning part.
Revision: August 2007
AV-181
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
2. CHECK POWER SUPPLY CIRCUIT FOR DISPLAY UNIT
1. Disconnect display unit connector. 2. Turn ignition switch ON. 3. Check voltage between display unit harness connector M93 ter-
minals 2, 3 and ground.
Approx. 9V
OK or NG OK >> GO TO 4. NG >> GO TO 3.
3.CHECK HARNESS
WKIA1227E
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M94. 3. Check continuity between display control unit harness connector M94 terminals 2, 4 and display unit har-
ness connector M93 terminals 2, 3.
Terminals
Display control unit
Display unit
Connector
Terminal
Connector
Terminal
2
2
M94
M93
4
3
4. Check continuity between display unit and ground.
Continuity Yes
Terminals
Connector
Display unit Terminal
Continuity --
2
M93
Ground
No
3
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation". NG >> Repair harness.
4. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. 2. Check continuity between display unit harness connector M93
terminals 13, 14 and ground.
WKIA1229E
Continuity should exist.
OK or NG OK >> GO TO 6. NG >> GO TO 5.
5. CHECK HARNESS
1. Disconnect display control unit connector M94.
WKIA2079E
Revision: August 2007
AV-182
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > 2. Check continuity between display unit harness connector M93
terminals 13, 14 and display control unit harness connector M94 terminals 5, 7.
Continuity should exist.
OK or NG OK >> Replace display control unit. Refer to AV-148, "Removal and Installation". NG >> Repair harness.
6.CHECK GROUND CIRCUIT
Check continuity between display unit and ground as follows.
1.
Connector
Terminals Terminal
--
Ignition switch
Continuity
M93
1
Ground
OFF
Yes
OK or NG
OK >> Inspection End. NG >> Repair harness.
A B C
WKIA2080E
D E F G
Power Supply and Ground Circuit Inspection for AV Switch
WKIA1228E
H
INFOID:0000000001719482
1.CHECK FUSE
I
Make sure the following fuses of the AV switch are not blown.
Connector
Terminals
Terminal
Power source
J
Fuse No.
M98
1
Battery power
19
AV
2
ACC power
4
OK or NG
OK >> GO TO 2.
L
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
M
1. Disconnect AV switch connector.
2. Check voltage between connector terminals and ground as fol-
lows.
N
Terminals
Ignition switch position
Connector
(+) Terminal
()
OFF
ACC
ON
1
Battery voltage
Battery voltage
Battery voltage
M98
Ground
2
0V
Battery voltage
Battery voltage
OK or NG
OK >> GO TO 3. NG >> Check harness for open between AV switch and fuse.
O P
WKIA1374E
Revision: August 2007
AV-183
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. 2. Check continuity between AV switch and ground as follows.
Terminals
Connector
Terminal
()
M98
5
Ground
OK or NG
OK >> Inspection End. NG >> Repair or replace harness.
Ignition switch OFF
Continuity Yes
Vehicle Speed Signal Inspection for NAVI Control Unit
WKIA2692E INFOID:0000000001719483
1.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect NAVI control unit connector B505, display control unit connector M94 and combination meter
connector M24. 3. Check continuity between NAVI control unit harness connector
B505 (B) terminal 66 and combination meter harness connector M24 (A) terminal 26.
Continuity should exist.
4. Check continuity between NAVI control unit harness connector B505 (B) terminal 66 and ground.
Continuity should not exist.
OK or NG
OK >> GO TO 2. NG >> Repair harness.
2.CHECK 1: VEHICLE SPEED SIGNAL
WKIA5253E
1. Connect NAVI control unit connector, display control unit connector and combination meter connector. 2. Turn ignition switch ON. 3. Check voltage between NAVI control unit harness connector
B505 terminal 66 and ground.
Approx. 3.5V or more
OK or NG OK >> GO TO 3. NG >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
3.CHECK 2: VEHICLE SPEED SIGNAL
1. Drive vehicle at a constant speed.
WKIA4209E
Revision: August 2007
AV-184
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
2. Check signal between NAVI control unit harness connector
B505 terminal 66 and ground with CONSULT-III or oscilloscope.
A
66 - Ground
: Refer to AV-166, "Terminal and Reference Value for NAVI Control Unit".
OK or NG
OK >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
NG >> Check combination meter system. Refer to DI-18, "Vehicle Speed Signal Inspection".
Vehicle Speed Signal Inspection for Display Control Unit
B
C
WKIA4210E
D
INFOID:0000000001719484
1.CHECK HARNESS
E
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M94, NAVI control unit connector B505 and combination meter
connector M24.
F
3. Check continuity between combination meter connector M24 (A)
terminal 26 and display control unit connector M94 (B) terminal
16.
G
Continuity should exist.
4. Check continuity between display control unit harness connector
H
M94 (B) terminal 16 and ground.
Continuity should not exist.
OK or NG OK >> GO TO 2. NG >> Repair harness.
2.CHECK 1: VEHICLE SPEED SIGNAL
I
WKIA5254E
J
1. Connect display control unit connector, NAVI control unit connector and combination meter connector. 2. Turn ignition switch ON.
AV
3. Check voltage between display control unit harness connector
M94 terminal 16 and ground.
L
Approx. 3.5V or more
OK or NG
OK >> GO TO 3.
M
NG >> Replace display control unit. Refer to AV-148, "Removal
and Installation".
N
3.CHECK 2: VEHICLE SPEED SIGNAL
1. Drive vehicle at a constant speed.
SKIA4297E
O
P
Revision: August 2007
AV-185
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
2. Check signal between display control unit harness connector M94 terminal 16 and ground with CONSULT-III or oscilloscope.
16 - Ground
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
NG >> Check combination meter system. Refer to DI-18, "Vehicle Speed Signal Inspection".
Illumination Signal Inspection for NAVI Control Unit
1.CHECK ILLUMINATION SIGNAL
1. Turn the ignition switch ON. 2. Check voltage between NAVI control unit and ground.
Connector
Terminals (+)
Terminal
Lighting switch position
()
1st or 2nd po-
sition
OFF
B505
61
Ground
Battery voltage
Approx. 0V
OK or NG
OK >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
NG >> Check harness for open or short between NAVI control unit and IPDM E/R.
Illumination Signal Inspection for Display Control Unit
1.CHECK ILLUMINATION SIGNAL
1. Turn ignition switch ON. 2. Check voltage between display control unit and ground.
Connector
Terminals (+)
Terminal
Lighting switch position
()
1st or 2nd po-
sition
OFF
M94
14
Ground
Battery voltage
Approx. 0V
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
NG >> Check harness for open or short between display control unit and IPDM E/R.
Ignition Signal Inspection for NAVI Control Unit
1.CHECK IGNITION SIGNAL
SKIA4616E INFOID:0000000001719485
WKIA4211E INFOID:0000000001719486
SKIA4299E INFOID:0000000001719487
Revision: August 2007
AV-186
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > 1. Disconnect NAVI control unit connector B505. 2. Turn ignition switch ON. 3. Check voltage between NAVI control unit harness connector
B505 terminal 63 and ground.
Battery voltage should exist.
OK or NG OK >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation". NG >> Check harness for open or short between NAVI control unit and fuse.
Ignition Signal Inspection for Display Control Unit
1.CHECK IGNITION SIGNAL
1. Disconnect display control unit connector M94. 2. Turn ignition switch ON. 3. Check voltage between display control unit harness connector
M94 terminal 12 and ground.
A
B
C
WKIA4212E
D
INFOID:0000000001719488
E
F
Battery voltage should exist.
OK or NG OK >> Replace display control unit. Refer to AV-148, "Removal and Installation". NG >> Check harness for open or short between display control unit and fuse.
Reverse Signal Inspection for NAVI Control Unit
1.CHECK REVERSE LAMP
1. Turn ignition switch ON. 2. Place A/T selector lever into R-position. Do back-up lamps come on? YES or NO
YES >> GO TO 2. NO >> Check back-up lamp system. Refer to LT-88.
2.CHECK REVERSE SIGNAL
With the A/T selector lever in R-position, check voltage between NAVI control unit and ground.
G H
WKIA1230E
I
INFOID:0000000001719489
J
AV
L
M
Terminals
Selector lever position (+)
N
()
Connector
Terminal
R-position
Other than R-position
B505
65
Ground Battery voltage
Approx. 0V
O
OK or NG
OK >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
WKIA4213E
P
NG >> Check harness for open or short between NAVI control unit and back-up lamp position relay.
Reverse Signal Inspection for Display Control Unit
INFOID:0000000001719490
1.CHECK REVERSE LAMP
1. Turn ignition switch ON.
Revision: August 2007
AV-187
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
2. Place A/T selector lever into R-position. Do back-up lamps come on? YES or NO
YES >> GO TO 2. NO >> Check back-up lamp system. Refer to LT-88.
2.CHECK REVERSE SIGNAL
With the A/T selector lever in R-position, check voltage between display control unit and ground.
Terminals
(+)
()
Connector
Terminal
Selector lever position
R-position
Other than R-position
M94
6
Ground Battery voltage
Approx. 0V
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal
SKIA4303E
and Installation".
NG >> Check harness for open or short between display control unit and back-up lamp position relay.
AV Communication Line Check (Between Display Control Unit and NAVI Control Unit)
INFOID:0000000001719491
1.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for NAVI control unit. Refer to AV-180, "Power Supply and Ground Circuit Inspection for NAVI Control Unit".
OK or NG
OK >> GO TO 2. NG >> Check the malfunctioning parts.
2.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect NAVI control unit connector B505 and display control unit connector M95. 3. Check continuity between NAVI control unit and display control
unit.
Terminals
B
A
Continuity
Connector
Terminal
Connector
Terminal
NAVI control unit: B505
69
Display control
32
70
unit: M95
34
Yes
4. Check continuity between NAVI control unit and ground.
Terminals
Connector
B Terminal
Continuity --
NAVI control unit:
69
B505
70
Ground
No
OK or NG
OK >> GO TO 3. NG >> Repair harness or connector.
3.CHECK SELF-DIAGNOSIS OF DCU
1. Replace NAVI control unit. 2. Connect NAVI control unit connector and display control unit connector.
Revision: August 2007
AV-188
WKIA4214E
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
3. Turn ignition switch ON.
4. Start self-diagnosis of DCU and check the self-diagnosis result.
A
OK or NG
OK >> Inspection End.
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
B
Audio Communication Line Check (Between Display Control Unit and Audio Unit)
1.CHECK POWER SUPPLY AND GROUND CIRCUIT
INFOID:0000000001719492
C
Check power supply and ground circuit for audio unit. Refer to AV-53, "Power Supply Circuit Inspection". D
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2.CHECK HARNESS
E
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M45 and display control unit connector M95.
F
3. Check continuity between audio unit and display control unit.
Terminals
Display control unit
Audio unit
Continuity
Connector
Terminal
Connector
Terminal
40
65
M95
M45
Yes
42
66
4. Check continuity between display control unit and ground.
Terminals
Display control unit
Connector
Terminal
Continuity --
40
M95
Ground
No
42
OK or NG
OK >> GO TO 3. NG >> Repair harness or connector.
3.CHECK 1: AUDIO-TX COMMUNICATION SIGNAL
1. Connect display control unit connector M95. 2. Turn ignition switch ON. 3. Check voltage between display control unit harness connector
M95 terminal 42 and ground.
Approx. 3.5V or more.
OK or NG OK >> GO TO 4. NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
G H I
WKIA1192E
J AV
L M N O P
4.CHECK 2: AUDIO-RX COMMUNICATION SIGNAL
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95. 3. Connect audio unit connector.
WKIA1770E
Revision: August 2007
AV-189
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > 4. Turn ignition switch ON. 5. Check voltage between audio unit harness connector M45 ter-
minal 65 and ground.
Approx. 3.5V or more.
OK or NG OK >> GO TO 5. NG >> Replace audio unit. Refer to AV-72, "Removal and Installation".
5.CHECK 3: AUDIO-TX COMMUNICATION SIGNAL
1. Turn ignition switch OFF. 2. Connect display control unit connector. 3. Turn ignition switch ON. 4. Check signal between display control unit harness connector
M95 terminal 40 and ground with CONSULT-lIl or oscilloscope.
WKIA1771E
40 - Ground
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> GO TO 6. NG >> Replace display control unit. Refer to AV-148, "Removal
and Installation".
6.CHECK 4: AUDIO-RX COMMUNICATION SIGNAL
1. Turn ignition switch ON. 2. Check signal between display control unit harness connector
M95 terminal 42 and ground with CONSULT-llI or oscilloscope.
SKIA4447E
42 - Ground
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Inspection End. NG >> Replace audio unit. Refer to AV-72, "Removal and
Installation".
SKIA4448E
Display Communication Line Check (Between Display Control Unit and Display Unit)
INFOID:0000000001719493
1.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect display unit connector M93 and display control unit connector M95. 3. Check continuity between display control unit and display unit.
Revision: August 2007
AV-190
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Terminals
Display control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
36
11
M95
M93
Yes
38
22
4. Check continuity between display control unit and ground.
Terminals
Display control unit
Connector
Terminal
Continuity --
36
M95
Ground
No
38
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK 1: COMMUNICATION SIGNAL (DCUDSP)
1. Connect display unit connector. 2. Turn ignition switch ON. 3. Check voltage between display unit harness connector M93 ter-
minal 11 and ground.
Approx. 3.5V or more.
OK or NG OK >> GO TO 3. NG >> Replace display unit. Refer to AV-148, "Removal and Installation".
3.CHECK 2: COMMUNICATION SIGNAL (DSPDCU)
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95. 3. Connect display control unit connector. 4. Turn ignition switch ON. 5. Check voltage between display control unit harness connector
M95 terminal 38 and ground.
Approx. 3.5V or more.
OK or NG OK >> GO TO 4. NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
4.CHECK 3: COMMUNICATION SIGNAL (DCUDSP)
1. Turn ignition switch OFF. 2. Connect display unit connector. 3. Turn ignition switch ON.
Revision: August 2007
AV-191
A
B
C
WKIA2019E
D
E
F
G H
I
J
WKIA1377E
AV
L
M
N
O
SKIA4453E
P
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
4. Check signal between display control unit harness connector M95 terminal 36 and ground with CONSULT-III or oscilloscope.
36 - Ground
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> GO TO 5. NG >> Replace display control unit. Refer to AV-148, "Removal
and Installation".
5.CHECK 4: COMMUNICATION SIGNAL (DSPDCU)
1. Turn ignition switch ON. 2. Check signal between display control unit harness connector
M95 terminal 38 and ground with CONSULT-III or oscilloscope.
SKIA4452E
38 - Ground
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Inspection End. NG >> Replace display unit. Refer to AV-148, "Removal and
Installation".
SKIA4453E
AV Communication Line Check (Between Display Control Unit and AV Switch)
INFOID:0000000001719494
1.CHECK AV SWITCH CIRCUIT
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95 and AV switch connector M98. 3. Check continuity between display control unit and AV switch.
Terminals
A
B
Continuity
Connector
Terminal
Connector
Terminal
Display control
28
unit: M95
30
M98
6 8
Yes
4. Check continuity between display control unit and ground.
Terminals
Connector
A Terminal
Continuity --
Display control
28
unit: M95
30
Ground
No
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK SELF-DIAGNOSIS OF DCU
1. Replace AV switch. 2. Connect display control unit and AV switch connector. 3. Turn ignition switch ON. 4. Start self-diagnosis of DCU and check the self-diagnosis result.
OK or NG
Revision: August 2007
AV-192
WKIA5379E
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > OK >> Inspection End. NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
CAN Communication Line Check
1.CHECK MONITOR DESCRIPTION
1. Start display control unit self-diagnosis. Refer to AV-169, "Self-Diagnosis Mode (DCU)". 2. Select "CAN DIAG SUPPORT MONITOR". Refer to AV-179,
"CAN Diagnostic Support Monitor".
A
INFOID:0000000001719495
B
C
content
Item
Error counter
Normal condition Error (Example)
D
CAN_COMM
OK
NG
0-50
CAN_CIRC_1
OK
UNKWN
0-50
E
CAN_CIRC_2
OK
UNKWN
0-50
CAN_CIRC_3
OK
CAN_CIRC_4
OK
UNKWN UNKWN
0-50 0-50
WKIA4307E
F
CAN_CIRC_5
OK
UNKWN
0-50
CAN_CIRC_6
OK
UNKWN
0-50
G
CAN_CIRC_7
OK
UNKWN
0-50
CAN_CIRC_8
OK
UNKWN
0-50
CAN_CIRC_9
OK
UNKWN
0-50
H
3. Record each item display description (OK/NG/UKNWN) displayed on the following CAN DIAG SUPPORT
MONITOR Check Sheet.
CAN DIAG SUPPORT MONITOR Check Sheet
I
Diagnosis item
Screen display
Diagnosis item
Screen display
CAN_COMM CAN_CIRC_1
OK
NG
OK
UNKWN
CAN_CIRC_5 CAN_CIRC_6
OK
UNKWN
J
OK
UNKWN
CAN_CIRC_2
OK
UNKWN
CAN_CIRC_7
OK
UNKWN
CAN_CIRC_3
OK
UNKWN
CAN_CIRC_8
OK
UNKWN
AV
CAN_CIRC_4
OK
UNKWN
CAN_CIRC_9
OK
UNKWN
L >> After filling in CAN DIAG SUPPORT MONITOR Check Sheet, GO TO LAN-38.
If NAVI control unit detects that DVD-ROM map Is not inserted
1.CHECK DVD-ROM
INFOID:0000000001719496
M
Make sure identified DVD-ROM map is inserted.
OK or NG
N
OK >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
NG >> Insert identified DVD-ROM map. O
If NAVI control unit detects that inserted DVD-ROM map Is malfunctioning or if it Is im-
possible to load data from DVD-ROM map
INFOID:0000000001719497
1.CHECK 1: DVD-ROM
P
Remove inserted DVD-ROM map to check that it is identified. OK or NG
OK >> GO TO 2. NG >> Replace identified DVD-ROM map.
Revision: August 2007
AV-193
2008 Quest
< SERVICE INFORMATION >
2.CHECK 2: DVD-ROM
NAVIGATION SYSTEM
Check DVD-ROM for dirt, scratches and warpage.
OK or NG
OK >> GO TO 3. NG >> Replace DVD-ROM map.
3.CHECK 3: DVD-ROM
Insert same DVD-ROM to make sure same diagnosis result is found as last self-diagnosis.
OK or NG OK >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation". NG >> Replace DVD-ROM map.
If Connection Between NAVI Control Unit and GPS Antenna Is Malfunctioning
INFOID:0000000001719498
1.CHECK GPS ANTENNA
Check cable for GPS antenna for damage.
OK or NG
OK >> GO TO 2. NG >> Replace GPS antenna. Refer to AV-215, "Removal and Installation".
2.CHECK BY REPLACEMENT OF GPS ANTENNA
Replace with other functional GPS antenna to try self-diagnosis again.
Result of self-diagnosis; Found same result? YES >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation". NO >> Replace GPS antenna. Refer to AV-215, "Removal and Installation".
Operating Screen for Audio and A/C Is Not Displayed When Showing NAVI Screen
INFOID:0000000001719499
1.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95 and display unit connector M93. 3. Check continuity between display control unit harness connector M95 terminal 49, 51, 53, 55 and display
unit harness connector M93 terminal 21, 9, 20, 8.
Continuity should exist.
4. Check continuity between display control unit harness connector M95 terminal 49, 51, 53, 55 and ground.
Continuity should not exist.
OK or NG OK >> GO TO 2. NG >> Repair harness.
2.CHECK HORIZONTAL SYNCHRONIZATION SIGNAL
1. Connect display control unit connector and display unit connector. 2. Turn ignition switch ON.
WKIA1965E
Revision: August 2007
AV-194
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
3. Check signal between display control unit connector M95 terminals 55 and 49 with CONSULT-lIl or oscilloscope.
55 - 49
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> GO TO 3. NG >> Replace display unit. Refer to AV-148, "Removal and
Installation".
3.CHECK RGB AREA SIGNAL
1. Press the "TRIP" button. 2. Check signal between display control unit connector M95 termi-
nals 51 and 49 with CONSULT-lIl or oscilloscope.
51 - 49
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
Color of RGB Image Is Not Proper (Only NAVI Screen Looks Bluish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect NAVI control unit connector B505 and display control unit connector M95. 3. Check continuity between NAVI control unit and display control unit. 4. Check continuity between NAVI control unit and ground. · When the screen looks bluish.
B Connector
NAVI control unit: B505
Terminals
A
Terminal
Connector
44
Display control
47
unit: M95
Terminal 44 45
Continuity Yes
Terminals
Connector
B Terminal
Continuity --
NAVI control unit:
44
B505
47
Ground
No
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
1. Connect NAVI control unit connector and display control unit connector. 2. Turn ignition switch ON. 3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode.
A
B
C
SKIA4305E
D
E
F
G
SKIA4306E
H
INFOID:0000000001719500
I
J
AV
L
M
WKIA4215E
N
O
P
Revision: August 2007
AV-195
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
4. Check signal between NAVI control unit connector B505 terminal 44 and 47 with CONSULT-llI or oscilloscope.
· When the screen looks bluish. Voltage signal between NAVI control unit connector B505 terminal 44 and 47.
44 - 47
: Refer to AV-166, "Terminal and Reference Value for NAVI Control Unit".
OK or NG OK >> Replace display control unit. Refer to AV-148, "Removal and Installation". NG >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
Color of RGB Image Is Not Proper (Only NAVI Screen Looks Reddish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect NAVI control unit connector B505 and display control unit connector M95. 3. Check continuity between NAVI control unit and display control unit. 4. Check continuity between NAVI control unit and ground. · When the screen looks reddish.
B Connector
NAVI control unit: B505
Terminals
A
Terminal
Connector
45
Display control
47
unit: M95
Terminal 46 45
Continuity Yes
Terminals
Connector
B Terminal
Continuity --
NAVI control unit:
45
B505
47
Ground
No
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
1. Connect NAVI control unit connector and display control unit connector. 2. Turn ignition switch ON. 3. Display Color bar by CONFIRMATION/ADJUSTMENT mode. 4. Check signal between NAVI control unit connector B505 termi-
nal 45 and 47 with CONSULT-llI or oscilloscope. · When the screen looks reddish.
Voltage signal between NAVI control unit connector B505 terminal 45 and 47.
45 - 47
: Refer to AV-166, "Terminal and Reference Value for NAVI Control Unit".
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
NG >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
Revision: August 2007
AV-196
WKIA4216E INFOID:0000000001719501
WKIA4217E
WKIA4218E
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
Color of RGB Image Is Not Proper (Only NAVI Screen Looks Yellowish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect NAVI control unit connector B505 and display control unit connector M95. 3. Check continuity between NAVI control unit and display control unit. 4. Check continuity between NAVI control unit and ground.
· When the screen looks yellowish.
B Connector
NAVI control unit: B505
Terminals
A
Terminal
Connector
46
Display control
47
unit: M95
Terminal 48 45
Continuity Yes
Terminals
Connector
B Terminal
Continuity --
NAVI control unit:
46
B505
47
Ground
No
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
1. Connect NAVI control unit connector and display control unit connector. 2. Turn ignition switch ON. 3. Display Color bar by CONFIRMATION/ADJUSTMENT mode. 4. Check signal between NAVI control unit connector B505 termi-
nal 46 and 47 with CONSULT-lIl or oscilloscope. · When the screen looks yellowish.
Voltage signal between NAVI control unit connector B505 terminal 46 and 47.
46 - 47
: Refer to AV-166, "Terminal and Reference Value for NAVI Control Unit".
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
NG >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
Color of RGB Image Is Not Proper (All Screens Look Bluish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95 and display unit connector M93. 3. Check continuity between display control unit and display unit. 4. Check continuity between display control unit and ground. · When the screen looks bluish.
INFOID:0000000001719502
A
B
C D E
F
WKIA4219E
G
H
I J
AV L
M
WKIA4220E
N
INFOID:0000000001719503
O
P
Revision: August 2007
AV-197
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
B Connector
Display control unit: M95
Terminals
A
Terminal
Connector
50
Display unit:
47
M93
Terminal 17 7
Continuity Yes
Terminals
Connector
B Terminal
Continuity --
Display control
50
unit: M95
47
Ground
No
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
1. Connect display control unit connector and display unit connector. 2. Turn ignition switch ON. 3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode. 4. Check the following with CONSULT-lIl or oscilloscope. · When the screen looks bluish.
Voltage signal between display control unit connector M95 terminal 50 and 47.
50 - 47
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG OK >> Replace display unit. Refer to AV-148, "Removal and Installation". NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
Color of RGB Image Is Not Proper (All Screens Look Reddish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95 and display unit connector M93. 3. Check continuity between display control unit and display unit. 4. Check continuity between display control unit and ground. · When the screen looks reddish.
B Connector
Display control unit: M95
Terminals
A
Terminal
Connector
52
Display unit:
47
M93
Terminal 6 7
Continuity Yes
WKIA4221E
SKIA4697E INFOID:0000000001719504
WKIA4222E
Revision: August 2007
AV-198
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Terminals
B
--
Connector
Terminal
Display control
52
unit: M95
47
Ground
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
1. Connect display control unit connector and display unit connector. 2. Turn ignition switch ON. 3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode. 4. Check the following with CONSULT-llI or oscilloscope. · When the screen looks reddish.
Voltage signal between display control unit connector M95 terminal 52 and 47.
Continuity No
52 - 47
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
Color of RGB Image Is Not Proper (All Screens Look Yellowish)
1.CHECK RGB HARNESS
1. Turn ignition switch OFF. 2. Disconnect display control unit connector M95 and display unit connector M93. 3. Check continuity between display control unit and display unit. 4. Check continuity between display control unit and ground.
· When the screen looks yellowish.
B Connector
Display control unit: M95
Terminals
A
Terminal
Connector
54
Display unit:
47
M93
Terminal 18 7
Continuity Yes
Terminals
B
Connector
Terminal
Display control
54
unit: M95
47
OK or NG
OK >> GO TO 2. NG >> Repair harness or connector.
2.CHECK RGB SIGNAL
-- Ground
Continuity No
Revision: August 2007
AV-199
A B C D E F G H
SKIA4698E
I
INFOID:0000000001719505
J AV
L M N O
WKIA4223E
P
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
1. Connect display control unit connector and display unit connector. 2. Turn ignition switch ON. 3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode. 4. Check the following with CONSULT-lIl or oscilloscope. · When the screen looks yellowish.
Voltage signal between display control unit connector M95 terminal 54 and 47.
54 - 47
: Refer to AV-168, "Terminal and Reference Value for Display Control Unit".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
NAVI Screen Is Rolling
1.CHECK HARNESS
1. Turn ignition switch OFF. 2. Disconnect NAVI control unit connector B505 and display control unit connector M95. 3. Check continuity between NAVI control unit and display control unit.
Terminals
B
A
Continuity
Connector
Terminal
Connector
Terminal
NAVI control unit: B505
48
Display control
43
49
unit: M95
41
Yes
4. Check continuity between NAVI control unit and ground.
Terminals
Connector
B Terminal
Continuity --
NAVI control unit:
48
B505
49
Ground
No
OK or NG
OK >> GO TO 2. NG >> Repair harness.
2.CHECK RGB SYNCHRONIZING SIGNAL
1. Connect NAVI control unit connector and display control unit connector. 2. Turn ignition switch ON. 3. Check signal between NAVI control unit connector B505 termi-
nals 48 and 49 with CONSULT-lIl or oscilloscope.
48 - 49
: Refer to AV-166, "Terminal and Reference Value for NAVI Control Unit".
OK or NG
OK >> GO TO 3. NG >> Replace NAVI control unit. Refer to AV-215, "Removal
and Installation".
3.CHECK HARNESS
Revision: August 2007
AV-200
SKIA4356E INFOID:0000000001719506
WKIA4224E
WKIA4225E
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 and display unit connector M93.
A
3. Check continuity between display control unit and display unit.
Terminals
B
Display control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
56
19
C
M95
M93
Yes
49
21
4. Check continuity between display control unit and ground.
D
Terminals
Display control unit
--
Connector
Terminal
56
M95
Ground
49
OK or NG
OK >> GO TO 4. NG >> Repair harness.
4.CHECK RGB SYNCHRONIZING SIGNAL
Continuity No
WKIA2775E
E
F
G
1. Connect display control unit connector and display unit connector.
H
2. Turn ignition switch ON.
3. Check signal between display unit connector M93 terminals 19
and 21 with CONSULT-lIl or oscilloscope.
I
19 - 21
: Refer to AV-168, "Terminal and Reference Value for Display Unit".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
Guide Sound Is Not Heard
J
AV
WKIA2022E
L
INFOID:0000000001719507
1.CHECK VOICE GUIDE SETTING
M
· While driving in the dark green route, voice guide does not operate.
· Is volume setting switched ON?
NOTE: Voice guide is only available at intersections that satisfy certain conditions (indicated by on the map). There-
N
fore, guidance may not be given even when the route on the map changes direction.
Yes or No
O
YES >> GO TO 2.
NO >> Switch the setting ON and turn the volume up.
2.CHECK HARNESS
P
1. Turn ignition switch OFF. 2. Disconnect NAVI control unit connector B504 and audio unit connector M45. 3. Check continuity between NAVI control unit and audio unit.
Revision: August 2007
AV-201
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Terminals
B
A
Continuity
Connector
Terminal
Connector
Terminal
NAVI control
12
Audio unit:
71
unit: B504
14
M45
69
Yes
4. Check continuity between NAVI control unit and ground.
Terminals
Connector
B Terminal
Continuity --
NAVI control unit:
12
B504
14
Ground
No
Ok or NG
OK >> GO TO 3. NG >> Repair harness.
3.CHECK VOICE GUIDE
1. Connect NAVI control unit connector and audio unit connector. 2. Turn ignition switch ON. 3. Check signal between NAVI control unit harness connector
B504 terminal 12 and 14 with CONSULT-llI or oscilloscope.
WKIA4226E
12 - 14
: Refer to AV-166, "Terminal and Reference Value for NAVI Control Unit".
OK or NG
OK >> Replace audio unit. Refer to AV-72, "Removal and Installation".
NG >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
WKIA4227E
Screen Is Not Shown
INFOID:0000000001719508
1.POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit. Refer to AV-181, "Power Supply and Ground Circuit Inspection for Display Control Unit".
OK or NG
OK >> Replace display unit. Refer to AV-148, "Removal and Installation". NG >> Check the malfunctioning parts.
A/C Screen Is Not Shown (NAVI Screen Is Shown)
INFOID:0000000001719509
1.CHECK IGNITION SIGNAL
Check ignition signal. Refer to AV-187, "Ignition Signal Inspection for Display Control Unit".
OK or NG
OK >> GO TO 2. NG >> Check the malfunctioning parts.
2.CHECK CAN COMMUNICATION LINE
Check CAN communication line. Refer to LAN-3, "CAN Communication System". OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
Revision: August 2007
AV-202
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-41, "CAN System
Specification Chart".
A
FUEL ECONOMY Screen Is Not Shown
INFOID:0000000001719510
1. CHECK IGNITION SIGNAL
B
Check ignition signal. Refer to AV-187, "Ignition Signal Inspection for Display Control Unit".
OK or NG
C
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2.CHECK CAN COMMUNICATION LINE
D
Check CAN communication line. Refer to LAN-41, "CAN System Specification Chart".
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
E
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-41, "CAN System
Specification Chart".
Average Fuel Economy Display Is Not Shown (" *** " Is Shown)
F
INFOID:0000000001719511
1.CHECK VEHICLE SPEED SIGNAL
G
Check vehicle speed signal. Refer to AV-185, "Vehicle Speed Signal Inspection for Display Control Unit".
OK or NG
OK >> GO TO 2.
H
NG >> Check the malfunctioning parts.
2.CHECK CAN COMMUNICATION LINE
Check CAN communication line. Refer to AV-193, "CAN Communication Line Check".
I
OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
J
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-38.
Distance to Empty Display Is Not Shown (" *** " Is Shown)
1.CHECK SPEEDOMETER
INFOID:0000000001719512
AV
Confirm that speedometer is functioning.
Is speedometer functioning?
L
YES >> GO TO 2.
NO >> Refer to DI-18, "Vehicle Speed Signal Inspection".
2.CHECK FUEL GAUGE
M
Confirm that fuel gauge is functioning.
Is fuel gauge functioning?
N
YES >> GO TO 3.
NO >> Refer to DI-19, "Fuel Level Sensor Unit Inspection".
3.CHECK CAN COMMUNICATION LINE
O
Check CAN communication line. Refer to AV-193, "CAN Communication Line Check".
OK or NG
P
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation".
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-38.
Driving Distance or Average Speed Display Is Not Shown (" *** " Is Shown)
INFOID:0000000001719513
1. CHECK IGNITION SIGNAL
Revision: August 2007
AV-203
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > Check ignition signal. Refer to AV-187, "Ignition Signal Inspection for Display Control Unit". OK or NG
OK >> GO TO 2. NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-38.
2.CHECK VEHICLE SPEED SIGNAL
Check vehicle speed signal. Refer to AV-185, "Vehicle Speed Signal Inspection for Display Control Unit". OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation". NG >> Check the malfunctioning parts.
No Warning Message Is Displayed (Combination Meter Warning Lamp Illuminates)
INFOID:0000000001719514
1. DISPLAY CONDITION CHECK
Check display conditions of each warning screen.
Warning screen
Display condition
DOOR OPEN
Vehicle is running [approx. 5 km/h (3 MPH) or faster] and door ajar of any of the doors is detected.
LIFTGATE OPEN
Vehicle is running [approx. 5 km/h (3 MPH) or faster] and liftgate ajar is detected.
Have conditions been met to display warning screen?
YES >> GO TO 2. NO >> Inspection End.
2.SELF-DIAGNOSIS CHECK
Perform self-diagnosis. Refer to AV-169, "Self-Diagnosis Mode (DCU)". Is self-diagnosis result OK?
YES >> Replace combination meter. Refer to DI-22, "Combination Meter". NO >> Check the malfunctioning parts.
Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)
INFOID:0000000001719515
1.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Refer to AV-183, "Power Supply and Ground Circuit Inspection for AV Switch".
OK or NG
OK >> GO TO 2. NG >> Check the malfunctioning parts.
2.AV SWITCH SELF-DIAGNOSIS
AV switch self-diagnosis. Refer to AV-180, "AV Switch Self-Diagnosis Function".
OK or NG
OK >> GO TO 3. NG >> Check the malfunctioning parts.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Refer to AV-181, "Power Supply and Ground Circuit Inspection for Display Control Unit".
OK or NG
OK >> GO TO 4. NG >> Check the malfunctioning parts.
4.CHECK COMMUNICATION LINE
Check communication line. Refer to AV-192, "AV Communication Line Check (Between Display Control Unit and AV Switch)".
OK or NG
Revision: August 2007
AV-204
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > OK >> Replace AV switch. Refer to AV-72, "Removal and Installation". NG >> Replace display control unit. Refer to AV-148, "Removal and Installation".
Navigation System Does Not Activate
A
INFOID:0000000001719516
1.POWER SUPPLY AND GROUND CIRCUIT CHECK
B
Check power supply and ground circuit. Refer to AV-180, "Power Supply and Ground Circuit Inspection for NAVI Control Unit".
C OK or NG
OK >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation". NG >> Check the malfunctioning parts.
Previous NAVI Conditions Are Not Stored
D
INFOID:0000000001719517
1.CHECK BATTERY POWER
Check NAVI control unit battery power. Refer to AV-180, "Power Supply and Ground Circuit Inspection for NAVI Control Unit". OK or NG
OK >> Replace NAVI control unit. Refer to AV-215, "Removal and Installation". NG >> Check NAVI control unit battery power system harness.
Previous Vehicle Conditions Are Not Stored
E
F
G
INFOID:0000000001719518
1.CHECK BATTERY POWER
Check display control unit battery power. Refer to AV-181, "Power Supply and Ground Circuit Inspection for Display Control Unit". OK or NG
OK >> Replace display control unit. Refer to AV-148, "Removal and Installation". NG >> Check display control unit battery power system harness.
Position of Current Location Mark Is Not Correct
H I J
INFOID:0000000001719519
1.SELF-DIAGNOSIS
Perform "Self-diagnosis mode" of the self-diagnosis function. Refer to AV-171, "Self-Diagnosis Mode (NAVI)". AV
OK or NG
OK >> GO TO 2.
L
NG >> Check the malfunctioning parts.
2.ERROR HISTORY DIAGNOSIS
Was any error stored in AV-173, "Confirmation/Adjustment Mode" of the CONFIRMATION/ADJUSTMENT M mode?
YES or NO
YES >> AV-173, "Confirmation/Adjustment Mode".
N
NO >> AV-206, "Driving Test".
Radio Wave from GPS Satellite Is Not Received
1.CHECK ENVIRONMENT
INFOID:0000000001719520
O
Check if any metal object that intercepts radio waves or an object that emits radio waves (such as a portable P phone) is located near the GPS antenna. Check if the vehicle is shielded by a building.
OK or NG
OK >> System is not malfunctioning. The GPS antenna may not be able to receive radio waves from the GPS satellite if it is shielded by metal object or an object emitting radio waves is placed near it.
NG >> GO TO 2.
2.SELF-DIAGNOSIS
Revision: August 2007
AV-205
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > Perform "Self-diagnosis mode" of the self-diagnosis function. Refer to AV-171, "Self-Diagnosis Mode (NAVI)". OK or NG
OK >> Replace GPS antenna. Refer to AV-215, "Removal and Installation". NG >> Check the malfunctioning parts.
Driving Test
INFOID:0000000001719521
1.DRIVING TEST 1
1. Scroll the map screen to display the area to make correction. Press "ENTER" and select "CURRENT LOCATION CORRECTION".
2. Correct direction of the vehicle mark. 3. Perform the distance correction of the CONFIRMATION/ADJUSTMENT mode.
Note: Normally, adjustment is not necessary because this system has automatic distance correction function. However, when a tire chain is fitted, adjustment in accordance with the tire diameter ratio must be made. 4. Are symptoms malfunctioning to the AV-206, "Example of Symptom Judged Not Malfunction" after driving the vehicle?
YES or NO
YES >> Limit of the location detection capacity of the navigation system. NO >> GO TO 2.
2.DRIVING TEST 2
· Did any malfunction occur when the proper test in the following test patterns is performed? · Test pattern
Driving test finds the difference between the symptoms monitored with and without each sensor. - Test pattern 1: Test method with no GPS location correction
Disconnect GPS antenna connector (GT5) connected to the NAVI control unit. Accurately adjust the current location and the direction, then drive the vehicle. - Test pattern 2: Test method with no map-matching Accurately adjust the current location and the direction. Eject the map DVD-ROM from the NAVI control unit with ignition switch turned to OFF, then drive the vehicle. After driving, insert the map DVD-ROM back in the unit, display the track of the vehicle on the map screen and compare it with the actual road configuration. · Sample tests - <To determine if the current-location mark skips at the same position, if so, whether it is caused by mapmatching or by GPS> Perform test pattern 1. - <To determine if the pattern of streets displayed is correct or not> Perform test pattern 1 & 2. Compare the track of the vehicle on the map screen and the actual road configuration. For fairly accurate tracking, plotting shall be made every several hundred meters (feet). - <When the distance is adjusted accurately> Perform test pattern 1 & 2. Drive on a road of which distance is accurately known (by utilizing distance posts on a highway). Calculate the rate of change (increased/decreased) of the distance by comparing with the actual distance. Correction = A/B A: Distance shown on the screen B: Actual distance
YES or NO
YES NO
>> · If adjustment is insufficient, perform adjustment again. · If any error is found in the map, please contact map data supplier. Refer to Navigation System Owner's Manual for contact information. · Replace NAVI control unit. Refer to AV-215, "Removal and Installation".
>> Limit of the location detection capacity of the navigation system.
Example of Symptom Judged Not Malfunction
INFOID:0000000001719522
BASIC OPERATION
Revision: August 2007
AV-206
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Symptom
Cause
Remedy
A
No image is shown.
Display brightness adjustment is set fully to DARK Adjust the display brightness. side.
No guide sound is heard.
Volume control is set to OFF, MIN or MAX.
Adjust the audio guide volume.
B
Audio guide volume is too low or too high.
Audio guidance is not available while the vehicle is System is not malfunctioning. driving on a dark green route.
Screen is too dark. Motion of the image is too slow.
Temperature inside the vehicle is low.
Wait until the temperature inside the vehicle C
reaches the proper temperature.
Small black or bright spots appear Symptom peculiar to a liquid crystal display (dis- System is not malfunction.
on the screen.
play unit).
D
VEHICLE MARK
Symptom
Cause
Remedy
E
Map screen and BIRDVIEWTM
Some thinning of the character data is done to pre- System is not malfunctioning.
Name of the place varies with the vent the display becoming to complex. In some
screen.
cases and in some locations, the display contents
F
may differ.
The same place name, street name, etc. may not
be displayed every time on account of the data
processing.
G
Vehicle mark is not positioned cor- Vehicle is transferred by ferry or by towing after its Drive the vehicle for a while in the GPS sat-
rectly.
ignition switch is turned to OFF.
ellite signal receiving condition.
Screen will not switch to nighttime The daytime screen is selected by the "SWITCH Perform screen dimming and select the
H
mode after the lighting switch is SCREENS" when the last time the screen dim- nighttime screen by "SWITCH SCREENS".
turned ON.
ming setting is done.
Switching between daytime/nighttime screen may
I
be inhibited by the automatic illumination adjust-
ment function.
Map screen will not scroll in accor- Current location is not displayed. dance with the vehicle travel.
Press "MAP" button to display the current lo-
cation.
J
Vehicle mark will not be shown.
Accuracy indicator (GPS satellite mark) on the map screen stays gray.
Current location is not displayed.
Press "MAP" button to display the current lo-
cation.
GPS satellite signal is intercepted because the ve- Move the vehicle out to an open space.
AV
hicle is in or behind a building.
GPS satellite signal cannot be received because Do not place anything in the center on top of
an obstacle is placed on top of the instrument pan- the display.
L
el.
GPS satellites are not visible from current location. Wait until GPS satellites are visible by mov-
ing the vehicle.
M
Vehicle location accuracy is low.
Accuracy indicator (GPS satellite mark) on the map screen stays gray.
Current location is not determined.
Vehicle speed setting by the vehicle speed pulse Drive the vehicle for a while [for approx. 30
N
has been deviated (advanced or retarded) from minutes at approx. 30 km/h (19 MPH)] and
the actual vehicle speed because tire chain is fit- the deviation will be automatically adjusted. If
ted or the system has been used on another vehi- advancement or retard still occur, perform
cle.
the distance adjustment by CONFIRMA-
O
TION/ADJUSTMENT mode of diagnosis
function.
Map data has error or omission. (Vehicle mark is As a rule, an updated map DVDROM will be P
always deviated to the same position.)
released once a year.
DESTINATION, PASSING POINTS, AND MENU ITEMS CANNOT BE SELECTED/SET
Revision: August 2007
AV-207
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Symptom Destination cannot be set. Passing point is not searched when re-searching the route.
Route information will not be displayed.
Cause
Remedy
Destination to be set is on an expressway.
Set the destination on an ordinary road.
The vehicle has already passed the passing point, To include the passing points that have been
or the system judged so.
passed into the route again, set the route
again.
Route searching has not been done.
Set the destination and perform route searching.
Vehicle mark is not on the recommended route. Route guide is turned OFF.
Drive on the recommended route. Turn route guide ON.
Route information is not available on the dark green route.
System is not malfunctioning.
After the route searching, no guide sign will appear as the vehicle goes near the entrance/exit to the toll road.
Vehicle mark is not on the recommended route. Drive on the recommended route. (On the display, only guide signs related to the recommended route will be shown.)
Automatic route searching is not possible.
Vehicle is driving on a highway (gray route), or no Drive on a road to be searched. Or research
recommended route is available.
the route manually. In this case, however, the
whole route will be searched.
Performed automatic detour search (or detour search). However, the result is the same as that of the previous search.
Performed search with every condition considered. However, the result is the same as that of the previous search.
System is not malfunctioning.
Passing points cannot be set.
More than five passing points were set.
Passing points can be set up to five. To stop at more than five points, perform sharing in several steps.
When setting the route, the starting The current vehicle location is always set as the System is not malfunctioning.
point cannot be selected.
starting point of a route.
Some menu items cannot be se- The vehicle is being driven. lected.
Stop the vehicle at a safe place and then operate the system.
VOICE GUIDE
Symptom Voice guide will not operate.
Cause
Remedy
Note: Voice guide is only available at intersections that satisfy certain conditions (indicated by on the map). Therefore, guidance may not be given even when the route on the map changes direction.
System is not malfunctioning.
The vehicle is not on the recommended route.
Return to the recommended route or research the route.
Voice guide is turned OFF. Route guide is turned OFF.
Turn voice guide ON. Turn route guide ON.
Voice guide does not match the ac- Voice guide may vary with the direction to which Drive in conformity to the actual traffic rules.
tual road pattern.
the vehicle is turned and the connection of the road
to other roads.
ROUTE SEARCH
Revision: August 2007
AV-208
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Symptom No route is shown.
Cause
Remedy
A
No road to be searched is found around the des- Find wider road (orange road or wider) near-
tination.
by and reset the destination and passing
points onto it. Take care of the traveling direction when there are separate up and down
B
roads.
Starting point and the destination are too close. Set the destination at more distant point.
C
Conditional traffic regulation (day of the week/ Turn the time-regulating search conditions
time of the day) is set at the area around the cur- OFF. Turn "Avoid regulation time" in the
rent location or the destination.
search conditions OFF.
Indicated route is intermittent.
In some areas, highways (gray routes) are not System is not malfunctioning.
D
used for the search(Note)Therefore, the route to
the current location or the passing points may be
intermittent.
E
When the vehicle has passed the A recommended route is controlled by each sec- System is not malfunctioning.
recommended route, it is deleted tion. When the vehicle has passed the passing
from the screen.
point 1, then the map data from the starting point up to the passing point 1 will be deleted. (The data
F
may remain undeleted in some areas.)
Detouring route is recommended. In some areas, highways (gray routes) are not Set the route closer to the basic route (gray
used for the search. (Note). Therefore, detour route).
G
route may be recommended.
A detour route may be shown when some traffic Slightly move the starting point or the destina-
regulation (one-way traffic, etc.) is set at the area tion, or set the passing point on the route of
H
around the starting point or the destination.
your choice.
Landmarks on the map do not match the actual ones.
In the area where highways (gray routes) are
System is not malfunctioning.
used for the search, left turn has priority around
I
the current location and the destination (passing
points). For this reason, the recommended route
may be detouring.
This can be happen due to omission or error in As a rule, an updated map DVD-ROM will be
J
the map data.
released once a year. Wait until the latest
map has become available.
Recommended route is far from Starting point, passing points, and destination of Reset the destination onto the road nearby. If AV
the starting point, passing points, the route guide were set far from the desired
this road is one of the highways (gray routes),
and destination.
points because route searching data around
an ordinary road nearby may be displayed as
NOTE:
these area were not stored.
the recommended route.
L
Except for the ordinance-designated cities. (Malfunctioning areas may be changed in the updated map disc.)
M
EXAMPLES OF CURRENT-LOCATION MARK DISPLACEMENT
N
O
P
Revision: August 2007
AV-209
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION > Vehicle's travel amount is calculated by reading its travel distance and turning angle. Therefore, if the vehicle is driven in the following manner, an error will occur in the vehicle's current location display. If correct location has not been restored after driving the vehicle for a while, perform location correction.
SEL698V
Revision: August 2007
AV-210
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Cause (condition) : While driving ooo: Display Yintersections
Driving condition
Remarks (correction, etc.)
A
At a Y intersection or similar gradual divi-
sion of roads, an error in the direction of
B
travel deduced by the sensor may result in
the current-location mark appearing on the
wrong road.
C
ELK0192D
Spiral roads
D
When driving on a large, continuous spiral
road (such as loop bridge), turning angle
error is accumulated and the vehicle mark may deviate from the correct location.
E
Straight roads
ELK0193D
Road config-
uration
Zigzag roads
ELK0194D
ELK0195D
Roads laid out in a grid pattern
Parallel roads
ELK0196D
ELK0197D
F
When driving on a long, straight road and
slow curve without stopping, map-matching
does not work effectively enough and distance errors may accumulate. As a result,
G
the vehicle mark may deviate from the cor-
rect location when the vehicle is turned at a corner.
If after travelling about 10 km (6 miles) the correct location has
H
not been restored, perform lo-
cation correction and, if neces-
When driving on a zigzag road, the map
sary, direction correction.
I
may be matched to other roads in the simi-
lar direction nearby at every turn, and the
vehicle mark may deviate from the correct
location.
J
AV
When driving where roads are laid out in a
grid pattern, or where many roads are run-
ning in the similar direction nearby, the map
may be matched to them by mistake and
L
the vehicle mark may deviate from the cor-
rect location.
M
When two roads are running in parallel
(such as highway and sideway), the map
N
may be matched to the other road by mis-
take and the vehicle mark may deviate from
the correct location.
O
P
Revision: August 2007
AV-211
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Cause (condition) : While driving ooo: Display In a parking lot
Place
Turntable
Slippery roads Slopes
SEL709V SEL710V
Road not displayed on the map screen
Map data
Different road pattern (Changed due to repair)
SEL699V
Driving condition
When driving in a parking lot, or other location where there are no roads on the map, matching may place the vehicle mark on a nearby road. When the vehicle returns to the road, the vehicle mark may have deviated from the correct location. When driving in circle or turning the steering wheel repeatedly, direction errors accumulate, and the vehicle mark may deviate from the correct location.
Remarks (correction, etc.)
When the ignition switch is OFF, the navigation system cannot get the signal from the gyroscope (angular speed sensor). Therefore, the displayed direction may be wrong and the correct road may not be easily returned to after rotating the vehicle on a turntable with the ignition OFF.
On snow, wet roads, gravel, or other roads where tires may slip easily, accumulated mileage errors may cause the vehicle mark to deviate from the correct road.
When parking in sloped garages, when travelling on banked roads, or in other cases where the vehicle turns when tilted, an error in the turning angle will occur, and the vehicle mark may deviate from the road.
If after travelling about 10 km (6 miles) the correct location has not been restored, perform location correction and, if necessary, direction correction.
When driving on new roads or other roads not displayed on the map screen, map matching does not function correctly and matches the location to a nearby road. When the vehicle returns to a road which is on the map, the vehicle mark may deviate from the correct road.
If the road pattern stored in the map data and the actual road pattern are different, map matching does not function correctly and matches the location to a nearby road. The vehicle mark may deviate from the correct road.
Vehicle
Use of tire chains
ELK0201D
When tire chains are used, the mileage is not correctly detected, and the vehicle mark may deviate from the correct road.
Drive the vehicle for a while. If the distance still deviates, adjust it by using the distance adjustment function. (If the tire chain is removed, recover the original value.)
Revision: August 2007
AV-212
2008 Quest
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Cause (condition) : While driving ooo: Display
Driving condition
Remarks (correction, etc.)
A
If the vehicle is driven just after the engine
Just after the engine is started
is started when the gyroscope (angular speed sensor) correction is not completed, the vehicle can lose its direction and may
Wait for a short while before driving after starting the engine.
B
have deviated from the correct location.
Precautions for driving
Continuous driving without stopping
When driving long distances without stop-
ping, direction errors may accumulate, and the current-location mark may deviate from
Stop and adjust the orientation.
C
the correct road.
Abusive driving Position correction accuracy
How to cor-
SEL701V
rect location Direction when location is corrected
Spinning the wheels or engaging in other If after travelling about 10 km (6
kinds of abusive driving may result in the miles) the correct location has
D
system being unable perform correct detec- not been restored, perform lo-
tion, and may cause the vehicle mark to de- cation correction and, if neces-
viate from the correct road.
sary, direction correction.
E
Enter in the road displayed on
If the accuracy of location settings is poor, the screen with an accuracy of
accuracy may be reduced when the correct approx. 1mm.
F
road cannot be found, particularly in places Caution: Whenever possible,
where there are many roads.
use detailed map for the correc-
tion.
G
H
If the accuracy of location settings during
correction is poor, accuracy may be re-
Perform direction correction.
duced afterwards.
I
SEL702V
CURRENT-LOCATION MARK SHOWS A POSITION WHICH IS COMPLETELY WRONG
J
In the following cases, the current-location mark may appear on completely different position in the map
depending on the GPS satellite signal receiving conditions. In this case, perform location correction and direc-
tion correction.
AV
· When location correction has not been done
- If the receiving conditions of the GPS satellite signal is poor, if the current-location mark becomes out of
place, it may move to a completely different location and not come back if location correction is not done. The position will be corrected if the GPS signal can be received.
L
· When the vehicle has traveled by ferry, or when the vehicle has been towed
- Because calculation of the current location cannot be done when travelling with the ignition OFF, for exam-
ple when traveling by ferry or when being towed, the location before travel is displayed. If the precise loca- M
tion can be detected with GPS, the location will be corrected.
CURRENT-LOCATION MARK JUMPS
In the following cases, the current-location mark may appear to jump as a result of automatic correction of the N current location. · When map-matching has been done - If the current location and the current-location mark are different when map-matching is done, the current- O
location mark may seem to jump. At this time, the location may be "corrected" to the wrong road or to a location which is not on a road. · When GPS location correction has been done - If the current location and the current-location mark are different when the location is corrected using GPS P measurements, the current-location mark may seem to jump. At this time, the location may be "corrected" to a location which is not on a road.
CURRENT-LOCATION MARK IS IN A RIVER OR SEA
The navigation system moves the current-location mark with no distinction between land and rivers or sea. If the location mark is somehow out of place, it may appear that the vehicle is driving in a river or the sea.
WHEN DRIVING ON SAME ROAD, SOMETIMES CURRENT-LOCATION MARK IS IN RIGHT
Revision: August 2007
AV-213
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
PLACE AND SOMETIMES IT IS WRONG PLACE
The conditions of the GPS antenna (GPS data) and gyroscope (angular speed sensor) change gradually. Depending on the road traveled and the operation of the steering wheel, the location detection results will be different. Therefore, even on a road on which the location has never been wrong, conditions may cause the vehicle mark to deviate.
LOCATION CORRECTION BY MAP-MATCHING IS SLOW
· The map-matching function needs to refer to the data of the surrounding area. It is necessary to drive some distance for the function to work.
· Because map-matching operates on this principle, when there are many roads running in similar directions in the surrounding area, no matching determination may be made. The location may not be corrected until some special feature is found.
ALTHOUGH GPS RECEIVING DISPLAY IS GREEN, VEHICLE MARK DOES NOT RETURN TO CORRECT LOCATION
· The GPS accuracy has an error of approximately 10 m (30 ft). In some cases the current-location mark may not be on the correct street, even when GPS location-correction is done.
· The navigation system compares the results of GPS location detection with the results from map-matching location detection. The one which is determined to have higher accuracy is used.
· GPS location correction may not be performed when the vehicle is stopped.
NAME OF CURRENT PLACE IS NOT DISPLAYED
The current place name may not be displayed if there are no place names displayed on the map screen.
CONTENTS OF DISPLAY DIFFER FOR BIRDVIEWTM AND THE (FLAT) MAP SCREEN
Difference of the BIRDVIEWTM screen from the flat map screen are as follows. · The current place name displays names which are primarily in the direction of vehicle travel. · The amount of time before the vehicle travel or turn angle is updated on the screen is longer than for the
(flat) map display. · The conditions for display of place names, roads, and other data are different for nearby areas and for more
distant areas. · Some thinning of the character data is done to prevent the display becoming too complex. In some cases
and in some locations, the display contents may differ. · The same place name, street name, etc. may be displayed multiple times.
Revision: August 2007
AV-214
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
Program Loading of NAVI Control Unit
Removal and Installation
GPS ANTENNA
Removal 1. Remove cluster lid D. Refer to IP-13, "Cluster Lid D". 2. Remove glove box. Refer to IP-14, "Glove Box". 3. Remove instrument panel side cover RH. Refer to IP-10.
Revision: August 2007
AV-215
INFOID:0000000001719523
A B C D E F G H I J AV L
SKIA0389E
M
INFOID:0000000001719524
N O P
2008 Quest
NAVIGATION SYSTEM
< SERVICE INFORMATION >
4. Separate the GPS antenna (1) from the bracket by removing the screws (A).
5. Disconnect GPS antenna connector and remove GPS antenna and feeder assembly out the top.
WKIA5258E
Installation Installation is in the reverse order of removal.
NAVI CONTROL UNIT
Removal CAUTION: To avoid damage, eject map DVD-ROM before removing the NAVI control unit. 1. Remove front seat RH. Refer to SE-75. 2. Remove NAVI control unit from the seat.
Installation Installation is in the reverse order of removal.
WKIA1195E
Revision: August 2007
AV-216
2008 Quest
< SERVICE INFORMATION >
TELEPHONE
TELEPHONE
Component Parts and Harness Connector Location
A
INFOID:0000000001719525
B
C
D
E
F
G
H
I
J
AV
L
1. BCM M18, M19
4. AV switch M98
7. Bluetooth ON indicator R16
System Description
M
WKIA5231E
2. Combination meter
3. Audio unit
M24
M45
N
5. Steering wheel audio control switches 6. Microphone
R20
8. Bluetooth control unit
9. Bluetooth antenna
O
B506, B507
(View with seat removed)
(View with seat removed)
INFOID:0000000001719526
P
BLUETOOTH® HANDS-FREE PHONE SYSTEM
Refer to the Owner's Manual for Bluetooth telephone system operating instructions. NOTE: Cellular telephones must have their wireless connection set up (paired) before using the Bluetooth telephone system.
Revision: August 2007
AV-217
2008 Quest
TELEPHONE
< SERVICE INFORMATION >
Bluetooth telephone system allows users who have a Bluetooth cellular telephone to make a wireless connection between their cellular telephone and the Bluetooth control unit. Hands-free cellular telephone calls can be sent and received. Personal memos can be created using the Voice Recognition system. Some Bluetooth cellular telephones may not be recognized by the Bluetooth control unit. When a cellular telephone or the Bluetooth control unit is replaced, the telephone must be paired with the Bluetooth control unit. Different cellular telephones may have different pairing procedures. Refer to the cellular telephone operating manual.
Bluetooth Telephone System Diagram
WKIA4569E
Bluetooth Control Unit When the ignition switch is turned to ACC or ON, the Bluetooth control unit will power up. During power up, the Bluetooth control unit is initialized and performs various self checks. Initialization may take up to 10 seconds. During this time the Bluetooth ON indicator will flash until initialization is complete. Voice Recognition will then become active and the Bluetooth ON indicator will remain on. Bluetooth telephone functions can be turned off using the voice recognition system.
BCM The BCM supplies power for the Bluetooth ON indicator.
Steering Wheel Audio Control Switches When buttons on the steering wheel audio control switch are pushed, the resistance in steering wheel audio control switch circuit changes depending on which button is pushed. The Bluetooth control module uses this signal to perform various functions while navigating through the voice recognition system. The following functions can be performed using the steering wheel audio control switch: · Initiate Self Diagnosis of the Bluetooth telephone system · Start a voice recognition session · Answer and end telephone calls · Adjust the volume of calls · Record memos
AV Switch Call volume can be adjusted using the AV switch.
Microphone The microphone is located in the roof console assembly. The microphone sends a signal to the Bluetooth control unit.
Combination Meter The combination meter supplies speed signals to the Bluetooth control unit. Vehicle speed signals are used to determine which voice command functions will be disabled based on driving conditions.
Bluetooth ON Indicator The Bluetooth ON indicator is located in the overhead console. The indicator will flash during power up while the Bluetooth control unit is initializing. This process may take up to 10 seconds. After initialization, the indicator will remain on to indicate that the system is ready for voice commands.
Audio Unit
Revision: August 2007
AV-218
2008 Quest
TELEPHONE
< SERVICE INFORMATION >
The audio unit receives signals from the Bluetooth control unit and sends audio signals to the speakers.
Wiring Diagram - H/PHON -
A
INFOID:0000000001719527
B
C
D
E
F
G
H
I
J
AV
L
M
N
O
P
WKWA4760E
Revision: August 2007
AV-219
2008 Quest
< SERVICE INFORMATION >
TELEPHONE
Revision: August 2007
AV-220
WKWA4761E
2008 Quest
TELEPHONE
< SERVICE INFORMATION >
Bluetooth Control Unit Harness Connector Terminal Layout
Terminal and Reference Value for Bluetooth Control Unit
Terminal (Wire color)
+
1 (Y) Ground
2 (V) Ground
3 (G/R) Ground
4 (B/W) 6
7 (R/L) 9 (G) 11(Y)
8 (B) 10 (L)
12 (R/G) Ground
13 (G/W) Ground
14 (Y/R)
15 (GR)
17 (V)
18 (G/O)
19 (R/B)
20 (B)
21 (B)
Signal
Item
input/
output
Battery power
Input
ACC power Input
IGN power Input
Ground
Shield
Mic-in signal Input
Audio out Output
Mute
Remote control A
Input
Remote control B
Input
Remote
control
ground
LED
-
Ground
Ground
Condition
Ignition switch
Operation
ACC/ ON ON/ START ON
ON
ON
Press MODE switch Press SEEK UP switch Press VOL UP switch Except for above Press POWER switch Press SEEK DOWN switch Press VOL DOWN switch Except for above
Revision: August 2007
AV-221
Reference value (Approx.)
Battery voltage
Battery voltage
Battery voltage
Approx. 0V
Approx. 0.75V
Approx. 2V Approx. 5V Approx. 0V
Approx. 0.75V
Approx. 2V Approx. 5V
INFOID:0000000001719528
A
B
C
WKIA5226E
D
INFOID:0000000001719529
E
Example of symptom
F
System does not
work properly.
G
System does not
work properly.
System does not
H
work properly.
I
J
AV
Steering wheel audio controls do not function.
L
M
Steering wheel audio
controls do not func- N
tion.
O
Steering wheel audio controls do not function.
P
2008 Quest
< SERVICE INFORMATION >
TELEPHONE
Terminal (Wire color)
+
28 (P/L)
29 (R/W)
33
Item
Speed signal
Microphone power
Bluetooth antenna sig-
nal
Signal input/ output
Input
Condition
Ignition switch
Operation
Bluetooth Control Unit Self-Diagnosis Function
Reference value (Approx.)
Example of symptom
INFOID:0000000001719530
The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically every ignition cycle during control unit initialization. The second diagnostic check is performed by the technician using the steering wheel audio control switches prior to trouble diagnosis.
BLUETOOTH CONTROL UNIT INITIALIZATION CHECKS
· Internal control unit failure · Bluetooth antenna connection open or shorted · Steering wheel audio control switches (SEND/END) stuck closed · Vehicle speed pulse count · Microphone connection test (with playback to operator) · Bluetooth inquiry check
STARTING THE DIAGNOSTIC MODE
1. Turn ignition switch to ACC or ON. 2. Wait for the Bluetooth system to complete initialization and the Bluetooth ON indicator to stop flashing.
This may take up to 10 seconds. 3. Press and hold the steering wheel audio control switch SEND
button for at least 5 seconds. The Bluetooth system will begin to play a verbal prompt.
4. While the prompt is playing, momentarily press both the steering wheel audio control switches SEND and END buttons simultaneously. The Bluetooth system will sound a 5 second beep.
5. While the beep is sounding, momentarily press both the steering wheel audio control switches SEND and END buttons simultaneously again.
6. The Bluetooth system has now entered into the diagnostic mode. Results of the diagnostic checks will be verbalized to the technician by the system.
WKIA4446E
Power Supply and Ground Circuit Inspection for Bluetooth Control Unit
1.CHECK FUSES
Make sure the following fuses for the Bluetooth control unit are not blown.
WKIA4447E INFOID:0000000001719531
Revision: August 2007
AV-222
2008 Quest
< SERVICE INFORMATION >
TELEPHONE
Connector
Terminals
Terminal
Ignition Switch
A
Fuse No.
1
All positions
31
B506
2
ACC/ON
4
B
3
ON/START
12
OK or NG
C
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
D
1. Disconnect Bluetooth control unit connector B506.
2. Check voltage between connector terminals and ground as fol-
E
lows.
Terminals
Ignition switch position
(+)
()
OFF
ACC
ON
Connector Terminal
1
Battery voltage
Battery voltage
Battery voltage
B506
2
Ground
0V
Battery voltage
Battery voltage
3
0V
0V
Battery voltage
OK or NG
OK >> GO TO 3. NG >> Check harness for open between Bluetooth control unit and fuse.
3.CHECK GROUND CIRCUITS
1. Turn ignition switch OFF. 2. Check continuity between the following Bluetooth control unit
terminals and ground.
Terminals
Connector
Terminal
4
B506
20
21
OK or NG
OK >> Inspection End. NG >> Repair or replace harness.
Removal and Installation
Continuity --
Ground
Yes
BLUETOOTH CONTROL UNIT
Removal 1. Remove front passenger seat. Refer to SE-75, "Removal and Installation".
F
G H
WKIA4389E
I
J
AV
L
M
WKIA4556E
N
INFOID:0000000001719532
O
P
Revision: August 2007
AV-223
2008 Quest
TELEPHONE
< SERVICE INFORMATION > 2. Remove Bluetooth control unit (1) from bluetooth control unit
bracket by removing screws (A) and disconnecting harness connector (2).
LKIA0713E
Installation Installation is in the reverse order of removal. NOTE: When replacing bluetooth control unit, Perform pairing procedure. Refer to Owner's Manual Pairing Procedure.
BLUETOOTH ON INDICATOR
Removal
1. Remove front overhead console. Refer to EI-38. 2. Release Bluetooth ON indicator tabs (A) and remove indicator
(1).
Installation Installation is in the reverse order of removal.
MICROPHONE
Removal 1. Remove front overhead console. Refer to EI-38. 2. Release microphone tabs (A) and remove microphone (1).
Installation Installation is in the reverse order of removal.
Revision: August 2007
AV-224
LKIA0714E
LKIA0716E
2008 Quest
