K ELECTRICAL
A
SECTION
B
AUDIO, VISUAL, NAVIGATION & TELEPHONE SYS- C TEM
D
CONTENTS
E
PRECAUTIONS ......................................................... 2 Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" ................................................................. 2 Wiring Diagrams and Trouble Diagnosis ................. 2
PREPARATION .......................................................... 3 Commercial Service Tool ........................................ 3
AUDIO ........................................................................ 4 Component Parts and Harness Connector Location..... 4 System Description ................................................. 5 BASE SYSTEM .................................................... 5 PREMIUM SYSTEM ............................................ 5 Schematic ............................................................... 7 PREMIUM SYSTEM ............................................ 7 Wiring Diagram -- AUDIO -- .................................. 8 BASE SYSTEM .................................................... 8 PREMIUM SYSTEM .......................................... 10 Terminals and Reference Value for Audio Unit (Base System) ................................................................. 17 Terminals and Reference Value for Audio Unit (Premium System) ....................................................... 18 Terminals and Reference Value for Audio Amplifier (Premium System) ................................................ 20 Audio Unit Self-Diagnosis Function (Premium System) ....................................................................... 23 STARTING THE SELF-DIAGNOSIS MODE ...... 23 EXITING THE SELF-DIAGNOSIS MODE .......... 23 DIAGNOSIS FUNCTION .................................... 23 Trouble Diagnosis ................................................. 24 MALFUNCTION WITH RADIO AND CD (BASE SYSTEM) ........................................................... 24 MALFUNCTION WITH RADIO AND CD (PREMIUM SYSTEM) ................................................. 24 FOR RADIO ONLY ............................................. 25 FOR CD ONLY ................................................... 25 Noise Inspection .................................................... 25 TYPE OF NOISE AND POSSIBLE CAUSE ....... 25 Power Supply Circuit Inspection ........................... 26 Steering Switch Check (Premium System) ........... 27 Sound Is Not Heard From Front Door Speaker or
Front Tweeter (Base System) ................................ 29 F
Sound Is Not Heard From Rear Door Speaker (Base
System) ................................................................. 31
Sound Is Not Heard From Front Door Speaker or
G
Front Tweeter (Premium System) .......................... 33
Sound Is Not Heard From Rear Door Speaker or
Rear Door Tweeter (Premium System) ................. 36 Sound Is Not Heard From Subwoofer (Premium
H
System) ................................................................. 40
Removal and Installation for Audio Unit ................ 41 REMOVAL .......................................................... 41 I
INSTALLATION .................................................. 41
Removal and Installation of Speaker ..................... 41
REMOVAL - FRONT DOOR SPEAKER ............. 41 J
INSTALLATION - FRONT DOOR SPEAKER ..... 41
REMOVAL - REAR DOOR SPEAKER ............... 41
INSTALLATION - REAR DOOR SPEAKER ....... 41 AV REMOVAL - FRONT TWEETER ........................ 42
INSTALLATION - FRONT TWEETER ................ 42
REMOVAL - REAR DOOR TWEETER (PREMIUM SYSTEM) ................................................. 42 L
INSTALLATION - REAR DOOR TWEETER
(PREMIUM SYSTEM) ........................................ 42
REMOVAL - SUBWOOFER (PREMIUM SYS-
M
TEM) ................................................................... 42
INSTALLATION - SUBWOOFER (PREMIUM
SYSTEM) ........................................................... 42
Removal and Installation of Audio Amplifier .......... 43
REMOVAL .......................................................... 43
I NSTALLATION ................................................. 43
Removal and Installation of Steering Wheel Audio
Control Switches .................................................... 43
REMOVAL .......................................................... 43
INSTALLATION .................................................. 43
AUDIO ANTENNA ................................................... 44
Location of Antenna ............................................... 44
Fixed Antenna Rod Replacement .......................... 44
REMOVAL .......................................................... 44
INSTALLATION .................................................. 44
Revision: February 2006
AV-1
2005 Xterra
PRECAUTIONS
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"
EKS00DKD
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: G 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.
G 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.
G 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.
Wiring Diagrams and Trouble Diagnosis
EKS00DKE
When you read wiring diagrams, refer to the following: G GI-16, "How to Read Wiring Diagrams". G PG-4, "POWER SUPPLY ROUTING CIRCUIT". When you perform trouble diagnosis, refer to the following: G GI-12, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES". G GI-28, "How to Perform Efficient Diagnosis for an Electrical Incident".
Revision: February 2006
AV-2
2005 Xterra
PREPARATION Commercial Service Tool
Tool name Power tool
PREPARATION
Description Loosening bolts and nuts
PBIC0191E
PFP:00002
A
EKS00DKF
B C D E F G H I J AV L M
Revision: February 2006
AV-3
2005 Xterra
AUDIO
AUDIO Component Parts and Harness Connector Location
PFP:28111
EKS00DKG
Revision: February 2006
AV-4
WKIA3721E
2005 Xterra
AUDIO
System Description
BASE SYSTEM
EKS00DKH
A
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times
G through 20A fuse (No. 29, located in the fuse and fusible link box)
B
G to audio unit terminal 6.
With the ignition switch in the ACC or ON position, power is supplied
G through 10A fuse [No. 4, located in the fuse block (J/B)]
C
G to audio unit terminal 10.
Ground is supplied through the case of the audio unit. Then audio signals are supplied
D
G through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16
G to terminals + and - of front door speaker LH and RH
E
G to terminals + and - of front tweeter LH and RH
G to terminals + and - of rear door speaker LH and RH.
PREMIUM SYSTEM
F
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times
G through 15A fuse [No. 17, located in the fuse block (J/B)]
G
G to audio amplifier terminals 1 and 17
G through 20A fuse (No. 29, located in the fuse and fusible link box)
H
G to audio unit terminal 6.
With the ignition switch in the ACC or ON position, power is supplied
G through 10A fuse [No. 4, located in the fuse block (J/B)]
I
G to audio unit terminal 10.
Ground is supplied through the case of the audio unit.
Ground is also supplied
J
G to audio amplifier terminals 4 and 20
G through body grounds B117 and B132.
Then audio signals are supplied
AV
G through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16
G to audio amplifier terminals 5, 6, 7, 8, 21, 22, 23 and 24.
Audio signals are amplified by the audio amplifier.
L
The amplified audio signals are supplied
G through audio amplifier terminals 2, 3, 11, 12, 13, 14, 15, 16, 18, 19, 27, 28, 29, 30, 31 and 32
G to terminals + and - of front door speaker LH and RH
M
G to terminals + and - of front tweeter LH and RH
G to terminals + and - of rear door speaker LH and RH
G to terminals + and - of rear door tweeter LH and RH
G to terminals 1, 2, 3 and 4 of subwoofer.
When one of steering wheel audio control switches is pushed, the resistance in steering switch circuit changes depending on which button is pushed.
Satellite Radio Tuner (Pre-wiring) The satellite radio tuner pre-wiring allows connection of a satellite radio tuner. Power is supplied at all times G through 15A fuse [No. 17, located in the fuse block (J/B)] G to satellite radio tuner pre-wiring terminal 32. With the ignition switch in the ACC or ON position, power is supplied G through 10A fuse [No. 4, located in the fuse block (J/B)] G to satellite radio tuner pre-wiring terminal 36.
Revision: February 2006
AV-5
2005 Xterra
AUDIO
Ground is supplied through the case of the satellite radio tuner. Then audio signals are supplied G through satellite radio tuner pre-wiring terminals 21, 22, 23 and 24 G to audio unit terminals 41, 42, 43 and 44. Speed Sensitive Volume System 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.
Revision: February 2006
AV-6
2005 Xterra
Schematic
PREMIUM SYSTEM
AUDIO
EKS00DKI
A B C D E F G H I J AV L M
Revision: February 2006
AV-7
WKWA2579E
2005 Xterra
Wiring Diagram -- AUDIO --
BASE SYSTEM
AUDIO
EKS00DKJ
Revision: February 2006
AV-8
WKWA2577E
2005 Xterra
AUDIO
Revision: February 2006
AV-9
A B C D E F G H I J AV L M
WKWA2578E
2005 Xterra
PREMIUM SYSTEM
AUDIO
Revision: February 2006
AV-10
WKWA2580E
2005 Xterra
AUDIO
Revision: February 2006
AV-11
A B C D E F G H I J AV L M
WKWA2581E
2005 Xterra
AUDIO
Revision: February 2006
AV-12
WKWA2582E
2005 Xterra
AUDIO
Revision: February 2006
AV-13
A B C D E F G H I J AV L M
WKWA2583E
2005 Xterra
AUDIO
Revision: February 2006
AV-14
WKWA2584E
2005 Xterra
AUDIO
Revision: February 2006
AV-15
A B C D E F G H I J AV L M
WKWA2585E
2005 Xterra
AUDIO
Revision: February 2006
AV-16
WKWA2586E
2005 Xterra
AUDIO
Terminals and Reference Value for Audio Unit (Base System)
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
Reference value (Approx.)
EKS00DKK
A
Example of symptom
B
2 (BR)
1 (L)
Audio sound signal front Output LH
ON
Receive audio signal
4 (LG)
3 (R)
Audio sound signal front Output RH
ON
Receive audio signal
C
No sound from front door speaker LH or front tweeter LH.
D
SKIA0177E
E
No sound from front
door speaker RH or
F
front tweeter RH.
6 (Y)
Ground
Battery power
Input
7 (GR) Ground
Illumination control signal
Input
8 (R)
Ground
Illumination signal
Input
10 (G/B) Ground ACC power Input
ON OFF ACC
Illumination control switch is operated by lighting switch in 1st position.
Lighting switch is in 1st position.
Lighting switch is OFF.
Ignition switch ACC or ON
SKIA0177E
Battery voltage
Changes between 0 and 12V
Battery voltage 3V or less
Battery voltage
G
System does not work properly.
H
Audio unit illumination cannot be controlled.
I
Audio unit illumina-
tion does not come
on when lighting
J
switch is in 1st posi-
tion.
System does not
AV
work properly.
14 (G)
13 (B)
Audio sound signal rear Output LH
ON
Receive audio signal
L
No sound from rear door speaker LH.
M
SKIA0177E
16 (GR)
15 (O)
Audio sound signal rear Output RH
ON
Receive audio signal
No sound from rear door speaker RH.
SKIA0177E
Revision: February 2006
AV-17
2005 Xterra
AUDIO
Terminals and Reference Value for Audio Unit (Premium System)
Terminal (Wire color)
+
Signal
Condition
Item
input/
output Ignition switch
Operation
Reference value (Approx.)
EKS00DKL
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 front tweeter LH.
SKIA0177E
4 (Y)
3 (BR)
Audio sound signal front Output RH
ON
Receive audio signal
No sound from front door speaker RH or front tweeter RH.
6 (Y)
Ground
Battery power
Input
7 (GR) Ground
Illumination control signal
Input
8 (R)
Ground
Illumination signal
Input
ON OFF
Illumination control switch is operated by lighting switch in 1st position.
Lighting switch is in 1st position.
Lighting switch is OFF.
SKIA0177E
Battery voltage
Changes between 0 and 12V
Battery voltage 3V or less
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.
9 (SB)
Ground
Vehicle speed signal
Input
When vehicle
ON
speed is approx. 40 km/h (25
MPH)
10 (G/B) Ground ACC power Input ACC
11
Shield ground
12 (G/W) Ground
Amp. ON/ OFF signal
Output
ON
Speed sensitive volume inoperative.
SKIA0168E
Battery voltage
More than 6.5V
System does not work properly.
Audio amplifier does not work properly.
14 (BR)
Audio sound 13 (B/R) signal rear Output
LH
ON
Receive audio signal
No sound from rear door speaker LH or rear door tweeter LH.
SKIA0177E
Revision: February 2006
AV-18
2005 Xterra
Terminal (Wire color)
+
AUDIO
Signal
Condition
Item
input/
output Ignition switch
Operation
16 (L)
Audio sound 15 (B/W) signal rear Output
RH
ON
Receive audio signal
42 (R)
41 (G)
Audio left channel sound signal from satellite radio tuner
Input
ON
Receive audio signal
44 (B)
43 (W)
Audio right channel sound signal from satellite radio tuner
Input
ON
Receive audio signal
Shield
45
ground (audio sig-
nal)
Shield
46
ground
(data)
Satellite
48 (O)
Ground
radio tuner request to
Input
ON
audio unit
Turn audio unit ON
49 (P) Ground Audio RX
Input ON
Operate audio volume
50 (L) Ground Audio TX Output ON
Operate audio volume
Reference value (Approx.)
A
Example of symptom
B
No sound from rear
door speaker RH or C
rear door tweeter RH.
SKIA0177E
D
SKIA0177E
E
No sound from satellite radio tuner left channel.
F
G
No sound from satel-
lite radio tuner right channel.
H
SKIA0177E
I
J
AV
Satellite radio tuner
5V
does not operate
properly.
L
Satellite radio tuner M
audio information does not display properly.
SKIA4403E
Satellite radio tuner audio information does not display properly.
SKIA4402E
Revision: February 2006
AV-19
2005 Xterra
AUDIO
Terminal
(Wire color) Item
+
74 (R)
Ground
Remote control A
75 (GR) Ground
Remote control B
76 (L)
Remote
control
ground
Signal input/ output
Condition
Ignition switch
Operation
Press MODE switch
Input ON
Press SEEK UP switch
Press VOL UP switch
Except for above
Press POWER switch
Input ON
Press SEEK DOWN switch
Press VOL DOWN switch
Except for above
Reference value (Approx.)
0V 0.75V
2V 5V 0V 0.75V 2V 5V
Example of symptom
Steering wheel audio controls do not function.
Steering wheel audio controls do not function.
Steering wheel audio controls do not func-
tion.
Terminals and Reference Value for Audio Amplifier (Premium System)
EKS00E17
Terminal (wire color)
Item
+
1 (Y) Ground Battery
Signal input/ output
Condition
Ignition switch
Operation
Input
Reference value (Approx.)
Battery voltage
Example of symptom
System does not work properly.
2 (W) 18 (G) Subwoofer
Output
ON
Receive audio signal
No sound from subwoofer.
SKIA0177E
3 (O) 19 (BR) Subwoofer
Output
ON
Receive audio signal
4 (B) Ground Ground
ON
9 (G/W) Ground
Amp. ON signal
Input
ON
11 (G)
Rear door
27 (B)
speaker LH and rear door
Output
ON
Receive audio signal
tweeter LH
Revision: February 2006
AV-20
No sound from subwoofer.
SKIA0177E
More than 6.5V
System does not work properly.
No sound from rear door speaker LH or rear door tweeter LH.
SKIA0177E
2005 Xterra
Terminal (wire color)
+
AUDIO
Item
Signal input/ output
Condition
Ignition switch
Operation
Rear door
12 (GR)
28 (O)
speaker RH and rear door
Output
ON
Receive audio signal
tweeter RH
13 (W)
29 (P)
Front tweeter RH
Output
ON
Receive audio signal
14 (Y)
30 (GR)
Front tweeter LH
Output
ON
Receive audio signal
15 (BR)
31 (L)
Front door speaker LH
Output
ON
Receive audio signal
16 (LG)
32 (R)
Front door speaker RH
Output
ON
Receive audio signal
17 (R/B) Ground Battery
Input
20 (B) Ground Ground
ON
21 (Y)
5 (BR)
Audio sound signal front RH
Input
ON
Receive audio signal
Reference value (Approx.)
Example of
A
symptom
B
No sound from
rear door speaker
C
RH or rear door
tweeter RH.
SKIA0177E
D
E
No sound from front tweeter RH.
F
SKIA0177E
G
No sound from
front tweeter LH.
H
SKIA0177E
I
No sound from
J
front door speaker
LH.
SKIA0177E
AV
L
No sound from
front door speaker
RH.
M
SKIA0177E
Battery voltage
System does not work properly.
No sound from front door speaker RH or front tweeter RH.
SKIA0177E
Revision: February 2006
AV-21
2005 Xterra
Terminal (wire color)
+
AUDIO
Signal
Condition
Item
input/
output Ignition switch
Operation
22 (W) 6 (B)
Audio sound signal front LH
Input
ON
Receive audio signal
23 (L)
7 (B/W)
Audio sound signal rear RH
Input
ON
Receive audio signal
24 (BR)
8 (B/R)
Audio sound signal rear LH
Input
ON
Receive audio signal
Reference value (Approx.)
Example of symptom
No sound from front door speaker LH or front tweeter LH.
SKIA0177E
No sound from rear door speaker RH or rear door tweeter RH.
SKIA0177E
No sound from rear door speaker LH or rear door tweeter LH.
SKIA0177E
Revision: February 2006
AV-22
2005 Xterra
AUDIO
Audio Unit Self-Diagnosis Function (Premium System)
EKS00E18
It can check ON/OFF operation of each switch in the audio unit and diagnose the input signals from the steer- A
ing switch.
STARTING THE SELF-DIAGNOSIS MODE
B
1. Turn ignition switch from OFF to ACC.
2. Press and hold the "CLOCK" switch and turn the volume control dial clockwise or counterclockwise for 30
clicks or more.
C
D
E
F
G
H
WKIA3368E
Then the self-diagnosis operates. A single beep indicates self-diagnosis mode is active.
3. Initially, all display segments will be illuminated.
I
4. Press each switch. When each switch is pressed, its name and communication code will be displayed.
NOTE:
CD player LOAD and EJECT buttons are not included in this test and will not change the display when pressed.
J
EXITING THE SELF-DIAGNOSIS MODE
Turn ignition switch OFF. Then the self-diagnosis ends.
AV
DIAGNOSIS FUNCTION
G
It can check for continuity of the switches by sounding a beep when each audio unit switch and steering switch is pressed.
L
G It can check for continuity of harness between audio unit and steering switch.
M
Revision: February 2006
AV-23
2005 Xterra
AUDIO
Trouble Diagnosis
EKS00E19
The majority of the audio troubles 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 SYSTEM)
Symptom Inoperative All speakers do not sound One or several speakers do not sound
Poor sound Noisy
Possible cause
G Audio unit power circuit check. Refer to AV-26, "Power Supply Circuit Inspection" .
If above check is OK, replace audio unit.
G Audio unit
G Front door speaker check. Refer to AV-29, "Sound Is Not Heard From Front Door Speaker or Front Tweeter (Base System)" .
G Rear door speaker check. Refer to AV-31, "Sound Is Not Heard From Rear Door Speaker (Base System)" .
G Audio unit G Speaker
G Audio unit G Electrical equipment (generator, bonding wire, etc.)
MALFUNCTION WITH RADIO AND CD (PREMIUM SYSTEM)
Inoperative
Symptom
Steering switch does not operate
All speakers do not sound
One or several speakers do not sound Poor sound Noisy
Possible cause
G Audio unit power circuit check. Refer to AV-26, "Power Supply Circuit Inspection" .
If above check is OK, replace audio unit.
G Steering switch check. Refer to AV-27, "Steering Switch Check (Premium System)" .
If above check is OK, replace audio unit.
G Audio unit G Audio amplifier power supply and ground circuit check. Refer to AV-26,
"Power Supply Circuit Inspection" . G Audio amplifier ON signal G Audio amplifier
G Front door speaker check. Refer to AV-33, "Sound Is Not Heard From Front Door Speaker or Front Tweeter (Premium System)" .
G Rear door speaker check. Refer to AV-36, "Sound Is Not Heard From Rear Door Speaker or Rear Door Tweeter (Premium System)" .
G Subwoofer check. Refer to AV-40, "Sound Is Not Heard From Subwoofer (Premium System)" .
G Audio unit G Audio amplifier G Speaker
G Audio unit G Audio amplifier G Electrical equipment (generator, bonding wire, etc.)
Revision: February 2006
AV-24
2005 Xterra
AUDIO
FOR RADIO ONLY
Symptom
Possible cause
A
No sound Noisy All radio stations stored in memory are deleted
G Audio unit
G Antenna feeder, wiring or connections
B
G Audio unit
G Audio unit case ground
G Antenna feeder, wiring or connections
C
G Noise prevention parts
G Electrical equipment
G Wire harness of each piece of electrical equipment
D
G Audio unit power circuit. Refer to AV-26, "Power Supply Circuit Inspection" .
G Audio unit
E
NOTE:
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.
F
G Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains or buildings blocking the signal.
G Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the G antenna at a different time from the waves which reflect off mountains or buildings.
FOR CD ONLY
Symptom
H
Possible cause
CD cannot be inserted.
CD cannot be ejected.
G CD
I
The CD cannot be played.
G Audio unit
The sound skips, stops suddenly, or is distorted.
Noise Inspection
J
EKS00E1A
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 opera- AV tion 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 L components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Occurrence condition
Possible cause
M
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.
G Ignition components G Generator
The occurrence of the noise is linked with the operation of the fuel pump.
G Fuel pump condenser
Noise only occurs when various electrical components are operating.
A cracking or snapping sound occurs with the operation of various switches.
G Relay malfunction, audio unit malfunction
The noise occurs when various motors are operat- G Motor case ground
ing.
G Motor
Revision: February 2006
AV-25
2005 Xterra
AUDIO
Occurrence condition
The noise occurs constantly, not just under certain conditions.
A cracking or snapping sound occurs while the vehicle is being driven, especially when it is vibrating excessively.
Power Supply Circuit Inspection
1. CHECK FUSES
Possible cause G Rear defogger coil malfunction G Open circuit in printed heater G Poor ground of antenna feeder line G Ground wire of body parts G Ground due to improper part installation G Wiring connections or a short circuit
EKS00E1B
Check that the following fuses are not blown.
Unit
Terminals
Signal name
Fuse No.
Audio unit
6
Battery power
29
10
Ignition switch ACC or ON
4
1
Audio amplifier (premium system)
Battery power
17
17
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-4,
"POWER SUPPLY ROUTING CIRCUIT" .
2. POWER SUPPLY CIRCUIT CHECK
1. Disconnect audio unit connector M43 and audio amplifier connector B158 (premium system). 2. Check voltage between the audio unit and ground.
Terminal No.
Unit
(+)
OFF
ACC
ON
(-)
Connector Terminal
Audio unit
M43
6
Ground
Battery voltage
Battery voltage
Battery voltage
10
Ground
0V
Battery Battery voltage voltage
3. Check voltage between audio amplifier (premium system) and ground.
Terminal No.
Unit
(+)
(-)
Connector Terminal
OFF
ACC
ON
Audio amplifier
B158
1 17
Ground
Battery voltage
Battery voltage
Battery voltage
OK or NG
OK >> GO TO 3. NG >> G Check connector housings for disconnected or loose
terminals.
G Repair harness or connector.
WKIA3228E WKIA3722E
Revision: February 2006
AV-26
2005 Xterra
AUDIO
3. GROUND CIRCUIT CHECK A
1. Turn ignition switch OFF.
2. Check continuity between audio amplifier (premium system)
harness connector B158 terminal 4 and terminal 20 and ground.
B
Continuity should exist.
OK or NG
C
OK >> Inspection End.
NG >> G Check connector housings for disconnected or loose
terminals.
D
G Repair harness or connector.
Steering Switch Check (Premium System)
1. SELF-DIAGNOSIS FUNCTION CHECK
WKIA3723E
E
EKS00E1Q
F 1. Start audio unit self-diagnosis function. Refer to AV-23, "Audio Unit Self-Diagnosis Function (Premium
System)" .
2. Operate steering switch.
G
Does steering switch operate normally?
YES >> Inspection End.
NO >> GO TO 2.
H
2. CHECK HARNESS
1. Turn ignition switch OFF.
I
2. Disconnect audio unit connector M45 and spiral cable connector M30.
3. Check continuity between spiral cable harness connector terminal and audio unit harness connector ter-
minal.
J
Terminals
Spiral cable
Audio unit
Continuity
AV
Connector Terminal Connector
Terminal
32
76
M30
33
M45
75
Yes
L
34
74
4. Check continuity between audio unit and ground.
Connector
Terminals Audio unit
Terminal
Continuity --
M
WKIA3724E
74
M45
75
Ground
No
76
OK or NG
OK >> GO TO 3. NG >> Repair harness.
Revision: February 2006
AV-27
2005 Xterra
AUDIO
3. SPIRAL CABLE CHECK
1. Disconnect spiral cable connectors M30 and M102. 2. Check continuity between spiral cable harness connector termi-
nals.
Terminals
Spiral cable
Continuity
Connector Terminal Connector Terminal
32
16
M30
33
M102
18
Yes
34
14
OK or NG
OK >> GO TO 4. NG >> Replace spiral cable. Refer to SRS-44, "SPIRAL CABLE" .
4. CHECK STEERING SWITCH RESISTANCE
WKIA3725E
Check resistance between steering switch terminals.
Terminal
Signal name
Condition
Resistance ()
(Approx.)
Seek (down) Depress (station) down switch.
165
18 16 Power
Depress power switch.
0
Volume (down) Depress volume down switch.
652
Seek (up)
Depress (station) up switch.
165
14 16 Mode
Depress mode switch.
0
Volume (up) Depress volume up switch.
652
WKIA3234E
OK or NG
OK >> Inspection End. NG >> Replace steering switch. Refer to AV-43, "Removal and Installation of Steering Wheel Audio Con-
trol Switches" .
Revision: February 2006
AV-28
2005 Xterra
AUDIO
Sound Is Not Heard From Front Door Speaker or Front Tweeter (Base System)
EKS00E1R
A
1. HARNESS CHECK
1. Turn ignition switch OFF.
B
2. Disconnect audio unit connector M43 and suspect speaker or tweeter connector.
3. Check continuity between audio unit harness connector M43 ter-
minal and suspect speaker or tweeter harness connector termi-
C
nal.
Terminals
D
Audio unit
Speaker or tweeter
Continuity
Connector Terminal Connector Terminal
2
+
E
D12
1
-
4
+
D112
3
-
F
M43
Yes
2
+
M109
1
-
G
4
+
M111
3
-
4. Check continuity between audio unit harness connector M43 ter-
H
minal and ground.
Terminals
Connector
Audio unit Terminal
Continuity --
2
1
M43
Ground
No
4
3
OK or NG
OK >> GO TO 2. NG >> G Check connector housings for disconnected or loose terminals.
G Repair harness or connector.
I
WKIA1220E
J
AV
L
M
Revision: February 2006
AV-29
2005 Xterra
AUDIO
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. 4. Check the signal between audio unit harness connector terminal
and ground with CONSULT-II or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
2
1
Condition
Reference signal
Receive
M43
M43
audio
4
3
signal
SKIA0177E
OK or NG
OK >> Replace speaker. Refer to AV-41, "Removal and Installation of Speaker" .
NG >> Replace audio unit. Refer to AV-41, "Removal and Installation for Audio Unit" .
SKIA4278E
Revision: February 2006
AV-30
2005 Xterra
AUDIO
Sound Is Not Heard From Rear Door Speaker (Base System)
1. HARNESS CHECK
1. Turn ignition switch OFF. 2. Disconnect audio unit connector M44 and suspect speaker connector.
3. Check continuity between audio unit harness connector M44 terminal and suspect speaker harness connector terminal.
Terminals
Audio unit
Speaker or tweeter
Continuity
Connector Terminal Connector Terminal
13
-
D207
14
+
M44
Yes
15
-
D307
16
+
4. Check continuity between audio unit harness connector M44 terminal and ground.
Terminals
Connector
Audio unit Terminal
Continuity --
13
14
M44
Ground
No
15
16
OK or NG
OK >> GO TO 2. NG >> G Check connector housings for disconnected or loose terminals.
G Repair harness or connector.
EKS00E1S
A
B
C
D
E
F
G H
WKIA3371E
I
J
AV
L
M
Revision: February 2006
AV-31
2005 Xterra
AUDIO
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-II 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 door speaker. Refer to AV-41, "Removal and Installation of Speaker" .
NG >> Replace audio unit. Refer to AV-41, "Removal and Installation for Audio Unit" .
SKIA4281E
Revision: February 2006
AV-32
2005 Xterra
AUDIO
Sound Is Not Heard From Front Door Speaker or Front Tweeter (Premium Sys-
tem)
A
EKS00E1T
1. HARNESS CHECK
1. Turn ignition switch OFF.
B
2. Disconnect audio amplifier connector B159 and suspect speaker connector.
3. Check continuity between audio amplifier harness connector terminal B159 and suspect speaker harness connector terminal.
C
Terminals
Audio amplifier
Speaker or tweeter
Continuity
D
Connector
Terminal
Connector
Terminal
15
+
D12
E
31
-
16
+
D112
32
-
F
B159
Yes
14
+
M109
30
-
G
13
+
M111
29
-
4. Check continuity between audio amplifier harness connector ter-
H
minal B159 and ground.
Terminals
Audio amplifier
Connector
Terminal
Continuity --
13
14
15
B159
16
Ground
No
29
30
31
32
OK or NG
OK >> GO TO 2. NG >> G Check connector housings for disconnected or loose terminals.
G Repair harness or connector.
I
WKIA3372E
J
AV
L
M
Revision: February 2006
AV-33
2005 Xterra
AUDIO
2. FRONT SPEAKER SIGNAL CHECK
1. Connect audio amplifier connector B159 and suspect speaker connector. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check the signal between audio amplifier harness connector
B159 terminals with CONSULT-II or oscilloscope.
Terminals
(+)
Con- Terminector nal
(-)
Con- Terminector nal
Condition
Reference signal
13
29
14
30
B159
15
B159
31
Receive audio
signal
16
32
SKIA0177E
OK or NG
OK >> Replace suspect speaker. Refer to AV-41, "Removal and Installation of Speaker" . NG >> GO TO 3.
3. HARNESS CHECK
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M43 and audio amplifier connector B159. 3. Check continuity between audio unit harness connector termi-
nals and audio amplifier harness connector terminals.
Terminals
Audio unit
Audio amplifier
Continuity
Connector
Terminal
Connector
Terminal
1
6
2
22
M43
B159
Yes
3
5
4
21
4. Check continuity between audio unit harness connector terminals and ground.
Terminals
Connector
Audio unit Terminal
Continuity --
1
2
M43
Ground
No
3
4
OK or NG OK >> GO TO 4. NG >> G Check connector housings for disconnected or loose terminals.
G Repair harness or connector.
LKIA0602E WKIA3374E
Revision: February 2006
AV-34
2005 Xterra
AUDIO
4. FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector and audio amplifier connector. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check the signal between audio unit harness connector termi-
nals with CONSULT-II or oscilloscope.
Terminals
(+)
(-)
Con- Termi- Con- Terminector nal nector nal
2
1
Condition
Reference signal
Receive
M43
M43
audio
4
3 signal
SKIA0177E
OK or NG
OK >> Replace audio amplifier. Refer to AV-43, "Removal and Installation of Audio Amplifier" .
NG >> Replace audio unit. Refer to AV-41, "Removal and Installation for Audio Unit" .
A
B
C
D
E
F
G
H
SKIA4278E
I
J
AV
L
M
Revision: February 2006
AV-35
2005 Xterra
AUDIO
Sound Is Not Heard From Rear Door Speaker or Rear Door Tweeter (Premium
System)
EKS00E1U
1. HARNESS CHECK
1. Turn ignition switch OFF.
2. Disconnect audio amplifier connector B159 and suspect speaker connector.
3. Check continuity between audio amplifier harness connector terminal B159 and suspect speaker harness connector terminal.
Terminals
Audio amplifier
Speaker or tweeter
Continuity
Connector
Terminal
Connector
Terminal
11
+
D207
27
-
12
+
D307
28
-
B159
Yes
11
+
D208
27
-
12
+
D308
28
-
4. Check continuity between audio amplifier harness connector B159 terminal and ground.
Terminals
Audio amplifier
Connector
Terminal
Continuity --
11
B159
27
Ground
No
12
28
OK or NG
OK >> GO TO 2. NG >> G Check connector housings for disconnected or loose terminals.
G Repair harness or connector.
WKIA3375E
Revision: February 2006
AV-36
2005 Xterra
AUDIO
2. REAR SPEAKER SIGNAL CHECK
1. Connect audio amplifier connector B159 and suspect speaker connector. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check the signal between audio amplifier harness connector
B159 terminals with CONSULT-II or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
11
27
Condition
Reference signal
Receive
B159
B159
audio
12
28
signal
SKIA0177E
OK or NG OK >> Replace suspect speaker. Refer to AV-41, "Removal and Installation of Speaker" . NG >> GO TO 3.
A
B
C
D
E
F
G
H
WKIA3376E
I
J
AV
L
M
Revision: February 2006
AV-37
2005 Xterra
AUDIO
3. HARNESS CHECK
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M44 and audio amplifier connector B159.
3. Check continuity between audio unit harness connector M44 terminals and audio amplifier harness connector B159 terminals.
Terminals
Audio unit
Audio amplifier
Continuity
Connector
Terminal
Connector
Terminal
13
8
14
24
M44
B159
Yes
15
7
16
23
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 >> G Check connector housings for disconnected or loose terminals.
G Repair harness or connector.
WKIA3377E
Revision: February 2006
AV-38
2005 Xterra
AUDIO
4. REAR SPEAKER SIGNAL CHECK
1. Connect audio unit connector M44 and audio amplifier connector B159. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check the signal between audio unit harness connector M44
terminals with CONSULT-II or oscilloscope.
Terminals
(+)
(-)
Connector
Terminal
Connector
Terminal
14
13
Condition
Reference signal
Receive
M44
M44
audio
16
15
signal
SKIA0177E
OK or NG
OK >> Replace audio amplifier. Refer to AV-43, "Removal and Installation of Audio Amplifier" .
NG >> Replace audio unit. Refer to AV-41, "Removal and Installation for Audio Unit" .
A
B
C
D
E
F
G
H
SKIA4316E
I
J
AV
L
M
Revision: February 2006
AV-39
2005 Xterra
AUDIO
Sound Is Not Heard From Subwoofer (Premium System)
1. HARNESS CHECK
1. Turn ignition switch OFF. 2. Disconnect audio amplifier connector B158 and subwoofer connector B72.
3. Check continuity between audio amplifier harness connector terminal and subwoofer harness connector terminal.
Terminals
Audio amplifier
Subwoofer
Continuity
Connector
Terminal
Connector
Terminal
2
1
3
3
B158
B72
Yes
18
2
19
4
4. Check continuity between audio amplifier harness connector terminal and ground.
Terminals
Audio amplifier
Connector
Terminal
Continuity --
2
3
B158
Ground
No
18
19
OK or NG OK >> GO TO 2. NG >> G Check connector housings for disconnected or loose terminals.
G Repair harness or connector.
2. SUBWOOFER SIGNAL CHECK
1. Connect audio amplifier connector and subwoofer connector. 2. Turn ignition switch to ACC.
3. Check the signal between audio amplifier harness connector terminals with CONSULT-II or oscilloscope.
Terminals
(+)
(-)
Con- Termi- Con- Terminector nal nector nal
2
18
Condition
Reference signal
Receive
B158
B158
audio
3
19 signal
EKS00E1V WKIA3727E
WKIA3379E
SKIA0177E
OK or NG OK >> Replace subwoofer. Refer to AV-41, "Removal and Installation of Speaker" . NG >> Replace audio amplifier. Refer to AV-43, "Removal and Installation of Audio Amplifier" .
Revision: February 2006
AV-40
2005 Xterra
AUDIO
Removal and Installation for Audio Unit
REMOVAL 1. Disconnect the negative battery cable. 2. Remove cluster lid C. Refer to IP-11, "CLUSTER LID C" . 3. Using power tool, remove the audio unit screws. 4. Pull out audio unit, then disconnect connectors.
INSTALLATION Installation is in the reverse order of removal.
Removal and Installation of Speaker
REMOVAL - FRONT DOOR SPEAKER 1. Remove door finisher. Refer to EI-24, "DOOR FINISHER" . 2. Remove the front door speaker screws. 3. Disconnect the connector and remove speaker from front door.
INSTALLATION - FRONT DOOR SPEAKER Installation is in the reverse order of removal.
Front door speaker screws : 3.5 N·m (0.36 kg-m, 31 in-lb)
REMOVAL - REAR DOOR SPEAKER 1. Remove the rear door finisher. Refer to EI-25, "REAR DOOR" . 2. Remove the rear door speaker screws. 3. Disconnect the connector and remove speaker from rear door.
INSTALLATION - REAR DOOR SPEAKER Installation is in the reverse order of removal.
Rear door speaker screws : 3.5 N·m (0.36 kg-m, 31 in-lb)
Revision: February 2006
AV-41
EKS00E1W
A
B
C
D
E
LKIA0582E
F
EKS00E1Y
G
H
I
J
WKIA1498E
AV
L
M
WKIA1492E
2005 Xterra
AUDIO
REMOVAL - FRONT TWEETER 1. Remove the front tweeter grille. 2. Remove the front tweeter screws. 3. Disconnect the connector, and remove front tweeter from instru-
ment panel.
INSTALLATION - FRONT TWEETER Installation is in the reverse order of removal. REMOVAL - REAR DOOR TWEETER (PREMIUM SYSTEM) 1. Remove rear door finisher. Refer to EI-25, "REAR DOOR" . 2. Remove the rear door tweeter screws. 3. Remove rear door tweeter from rear door finisher.
INSTALLATION - REAR DOOR TWEETER (PREMIUM SYSTEM) Installation is in the reverse order of removal.
Rear door tweeter screws : 3.5 N·m (0.36 kg-m, 31 in-lb) REMOVAL - SUBWOOFER (PREMIUM SYSTEM)
WKIA3735E LKIA0586E
1. Remove the driver side front seat. Refer to SE-10, "FRONT SEAT" . 2. Remove the subwoofer bolts. 3. Disconnect the connector and remove the subwoofer.
INSTALLATION - SUBWOOFER (PREMIUM SYSTEM) Installation is in the reverse order of removal.
Revision: February 2006
AV-42
LKIA0637E
2005 Xterra
AUDIO
Removal and Installation of Audio Amplifier
REMOVAL 1. Remove passenger side front seat. Refer to SE-10, "FRONT SEAT" .
G Þ: Vehicle front 2. Remove audio amplifier and kick shield screws. 3. Disconnect the connectors (1) and remove audio amplifier from
the bracket.
INSTALLATION Installation is in the reverse order of removal.
Removal and Installation of Steering Wheel Audio Control Switches
REMOVAL 1. Remove driver air bag module. Refer to SRS-42, "Removal and Installation" . 2. Remove steering wheel audio control switch assembly screws. 3. Disconnect the switch connector, and remove from steering
wheel.
INSTALLATION Installation is in the reverse order of removal.
EKS00E1Z
A
B
C
D
E
LKIA0661E
F
EKS00E20
G
H
I
LKIA0589E
J AV
L
M
Revision: February 2006
AV-43
2005 Xterra
AUDIO ANTENNA Location of Antenna
AUDIO ANTENNA
PFP:28200
EKS00E21
Fixed Antenna Rod Replacement
REMOVAL 1. Remove antenna rod. 2. Remove rubber seal. 3. Remove cowl top. Refer to EI-17, "COWL TOP" . 4. Remove antenna base bolts. 5. Remove audio unit. Refer to AV-41, "Removal and Installation
for Audio Unit" . 6. Disconnect antenna cable from audio unit. 7. Remove antenna base and cable.
WKIA3784E EKS00E22
AEL610C
INSTALLATION Installation is in the reverse order of removal. CAUTION: Always properly tighten the antenna rod during installation or the antenna rod may bend or break during vehicle operation.
Revision: February 2006
AV-44
2005 Xterra
FrameMaker SGML 5.5.6p145 Acrobat Distiller 4.05 for Windows
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