WW
ww K ELECTRICAL
A
SECTION
B
WIPER, WASHER & HORN C
D
CONTENTS
E
PRECAUTION ........................................................... 3 Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" ................................................................. 3 Wiring Diagrams and Trouble Diagnosis ................. 3
FRONT WIPER AND WASHER SYSTEM ................. 4 Components Parts and Harness Connector Location .......................................................................... 4 System Description ................................................. 4 LOW SPEED WIPER OPERATION ..................... 5 HI SPEED WIPER OPERATION .......................... 5 INTERMITTENT OPERATION ............................. 5 AUTO STOP OPERATION ................................... 5 FRONT WASHER OPERATION .......................... 6 MIST OPERATION ............................................... 6 FAIL-SAFE FUNCTION ........................................ 6 COMBINATIONSWITCHREADINGFUNCTION..... 6 CAN Communication System Description ............... 6 Schematic ............................................................... 7 Wiring Diagram -- WIPER -- ................................. 8 Terminals and Reference Values for BCM .............11 Terminals and Reference Values for IPDM E/R .... 12 Work Flow ............................................................. 12 Preliminary Inspection ........................................... 13 INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT ............................................ 13 CONSULT-II Function (BCM) ................................ 14 CONSULT-II OPERATION ................................. 14 DATA MONITOR ................................................ 15 ACTIVE TEST .................................................... 15 CONSULT-II Function (IPDM E/R) ........................ 16 CONSULT-II OPERATION ................................. 16 DATA MONITOR ................................................ 17 ACTIVE TEST .................................................... 17 Trouble Diagnosis ................................................. 18 FRONT WIPER DOES NOT OPERATE ............ 18 FRONT WIPER STOP POSITION IS INCORRECT ................................................................. 21 ONLY FRONT WIPER LOW DOES NOT OPERATE .................................................................... 22
ONLY FRONT WIPER HI DOES NOT OPERATE... 22 F
ONLY FRONT WIPER INT DOES NOT OPER-
ATE ..................................................................... 24
FRONT WIPER INTERMITTENT OPERATION
G
SWITCH POSITION CANNOT BE ADJUSTED... 24
WIPERS DO NOT WIPE WHEN FRONT
WASHER OPERATES ....................................... 24 FRONT WIPERS OPERATE FOR 10 SECONDS,
H
STOP FOR 20 SECONDS, AND AFTER
REPEATING THIS OPERATION FIVE TIMES, THEY BECOME INOPERATIVE ........................ 24 I
Removal and Installation of Front Wiper Arms,
Adjustment of Wiper Arms Stop Location .............. 26
REMOVAL .......................................................... 26 J
ADJUSTMENT ................................................... 26
INSTALLATION .................................................. 26
Removal and Installation of Wiper Motor and Link-
WW
age ......................................................................... 27
REMOVAL .......................................................... 27
INSTALLATION .................................................. 27 Washer Nozzle Adjustment ................................... 28 L
Washer Tube Layout ............................................. 28
Removal and Installation of Wiper and Washer
Switch .................................................................... 28 M
REMOVAL .......................................................... 28
INSTALLATION .................................................. 28
Removal and Installation of Washer Tank ............. 29
Removal and Installation of Washer Motor ............ 29
REAR WIPER AND WASHER SYSTEM ................. 30
Components Parts and Harness Connector Loca-
tion ......................................................................... 30
System Description ................................................ 30
REAR WIPER OPERATION ............................... 30
INTERMITTENT OPERATION ........................... 31
AUTO STOP OPERATION ................................. 31
REAR WASHER OPERATION ........................... 31
BCM WIPER SWITCH READING FUNCTION ... 31
Wiring Diagram -- WIP/ R -- ................................ 32
Terminals and Reference Values for BCM ............. 34
Terminals and Reference Values for IPDM E/R ..... 35
Revision: January 2005
WW-1
2004 Quest
How to Proceed With Trouble Diagnosis ............... 35 Preliminary Check ................................................. 35
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT ............................................ 35 CONSULT-II Function (BCM) ................................. 37 CONSULT-II OPERATION .................................. 37 DATA MONITOR ................................................. 38 ACTIVE TEST .................................................... 38 Rear Wiper Does Not Operate .............................. 39 Rear Wiper Stop Position Is Incorrect .................... 41 Only Rear Wiper Does Not Operate ...................... 42 Only Rear Wiper Intermittent Does Not Operate ... 42 Wiper Does Not Wipe WhenRear Washer Operates... 42 Removal and Installation of Rear Wiper Arm ......... 43 REMOVAL .......................................................... 43 INSTALLATION ................................................... 43 Removal and Installation of Rear Wiper Motor ...... 43 REMOVAL .......................................................... 44 INSTALLATION ................................................... 44 Rear Washer Nozzle Adjustment ........................... 44
Rear Washer Tube Layout .....................................45 Removal and Installation for Rear Washer Nozzle...45
REMOVAL ...........................................................45 INSTALLATION ...................................................45 Check Valve ...........................................................45 Removal and Installation for Rear Wiper and Washer Switch .......................................................45 Removal and Installation for Washer Tank .............45 Removal and Installation for Washer Motor ...........46 SOCKET ...................................................................47 Wiring Diagram -- P/SCKT -- ...............................47 Removal and Installation of Power Sockets ...........48 REMOVAL ...........................................................48 INSTALLATION ...................................................48 HORN .......................................................................49 Wiring Diagram -- HORN -- .................................49 Removal and Installation ........................................50 REMOVAL ...........................................................50 INSTALLATION ...................................................50
Revision: January 2005
WW-2
2004 Quest
PRECAUTION
PRECAUTION
PFP:00011
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT A
BELT PRE-TENSIONER"
EKS005QV
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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.
C
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
D
q 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 per-
formed by an authorized NISSAN/INFINITI dealer.
E
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
F
q 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.
G
Wiring Diagrams and Trouble Diagnosis
EKS005QW
When you read wiring diagrams, refer to the following:
q Refer to GI-12, "How to Read Wiring Diagrams"
H
q Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When you perform trouble diagnosis, refer to the following:
I
q Refer to GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .
q Refer to GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident" .
J
WW
L
M
Revision: January 2005
WW-3
2004 Quest
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM Components Parts and Harness Connector Location
PFP:28810
EKS005QX
WKIA2877E
System Description
EKS005QY
q Both front wiper relays are located in IPDM E/R (intelligent power distribution module engine room). q Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by BCM (body control module) when switch is turned ON. q BCM controls front wiper LO, HI, and INT (intermittent) operation. q IPDM E/R operates the wiper motor according to CAN communication signals from the BCM. Power is supplied at all times q through 50A fusible link (letter j , located in the fuse and fusible link box) q to BCM terminal 55, and q through 30A fuse (No. 39, located in the IPDM E/R) q to front wiper relay (located in the IPDM E/R). With the ignition switch in ON or START position, power is supplied q through 10A fuse (No. 16, located in the fuse block J/B) q to BCM terminal 38, and q through 10A fuse (No. 47, located in the IPDM E/R) q through IPDM E/R terminal 44 q to combination switch terminal 14. Ground is supplied q to BCM terminals 49 (early production) and 52 and q to combination switch terminal 12 q through grounds M57, M61 and M79, and q to IPDM E/R terminals 38 and 60 and q to front wiper motor terminal 1
Revision: January 2005
WW-4
2004 Quest
FRONT WIPER AND WASHER SYSTEM
q through grounds E9, E15 and E24.
LOW SPEED WIPER OPERATION
A
When the ignition switch is in the ON or START position, and the front wiper switch is turned to low position,
the BCM detects a low speed wiper ON signal by BCM wiper switch reading function.
BCM then sends front wiper (low) request signal over CAN communication lines
B
q from BCM terminals 39 and 40
q to IPDM E/R terminals 48 and 49. C
When IPDM E/R receives front wiper (low) request signal, it supplies ground to energize the front wiper relay. With the front wiper relay energized, power is supplied
q through front wiper relay
D
q through front wiper high relay
q through IPDM E/R terminal 21
q to front wiper motor terminal 3.
E
With power and ground supplied, the front wiper motor operates at low speed.
HI SPEED WIPER OPERATION
When the ignition switch is in the ON or START position, and the front wiper switch is turned to high position, F
the BCM detects a high speed wiper ON signal by BCM wiper switch reading function.
BCM then sends front wiper (high) request signal over CAN communication lines
q from BCM terminals 39 and 40
G
q to IPDM E/R terminals 48 and 49.
When IPDM E/R receives front wiper (high) request signal, it supplies ground to energize the front wiper and
the front wiper high relays.
H
With the front wiper and the front wiper high relays energized, power is supplied
q through front wiper relay
q through front wiper high relay
I
q through IPDM E/R terminal 31
q to front wiper motor terminal 2.
J
With power and ground supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION
Wiper intermittent operation delay interval is determined from the combination of the intermittent wiper dial WW position inputs and vehicle speed. During each intermittent operation delay interval, the BCM sends a front wiper request signal to the IPDM E/R to operate the wipers. When the ignition switch is in ON or START position, and the front wiper switch is turned to intermittent posi- L tion, the BCM detects a front wiper (intermittent) ON signal by BCM wiper switch reading function. BCM then sends front wiper (intermittent) request signal over CAN communication lines
q from BCM terminals 39 and 40
M
q to IPDM E/R terminals 48 and 49.
When BCM determines that combination switch status is front wiper intermittent ON, it performs the following operations.
q BCM detects ON/OFF status of intermittent wiper dial position.
q BCM calculates operation interval from wiper dial position and vehicle speed signal received through CAN communications.
q BCM sends front wiper request signal (INT) to IPDM E/R at calculated operation interval.
When IPDM E/R receives front wiper request signal (INT), it supplies ground to energize the front wiper relay. It then sends auto-stop signal to BCM, and conducts intermittent front wiper motor operation.
AUTO STOP OPERATION
When the wiper arms are not located at the base of the windshield, and the wiper switch is turned OFF, the wiper motor will continue to operate until the wiper arms reach windshield base. When wiper arms reach base of windshield, front wiper motor terminals 1 and 4 are connected. Ground is supplied
q to IPDM E/R terminal 32
Revision: January 2005
WW-5
2004 Quest
FRONT WIPER AND WASHER SYSTEM
q through front wiper motor terminal 4
q through front wiper motor terminal 1
q through grounds E9, E15 and E24.
The IPDM E/R sends auto stop operation signal to BCM through CAN communication lines. When BCM receives auto stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN communication lines. The IPDM E/R then de-energizes the front wiper relay. Wiper motor will then stop wiper arms at the STOP position.
FRONT WASHER OPERATION When the ignition switch is in the ON or START position, and the front and rear washer switches are OFF, the front and rear washer motor is supplied power q through 10A fuse (No. 47, located in the IPDM E/R) q through IPDM E/R terminal 44 q through combination switch (wiper switch) terminal 14 q through combination switch (wiper switch) terminal 13 q to front and rear washer motor terminal +, and q through combination switch (wiper switch) terminal 11 q to front and rear washer motor terminal . When front wiper switch is in front washer position, BCM detects front washer signal by BCM wiper switch reading function. Combination switch ground is supplied q to front and rear washer motor terminal q through combination switch (wiper switch) terminal 11 q through combination switch (wiper switch) terminal 12 q through grounds M57, M61 and M79. With ground supplied, the front and rear washer motor is operated in the front direction. When BCM detects that front washer motor has operated for 0.4 seconds or longer, BCM uses CAN communication and sends wiper request signal to IPDM E/R for low speed operation of wipers. When BCM detects that washer switch is OFF, low speed operation cycles approximately 3 times and then stops.
MIST OPERATION
When the wiper switch is temporarily placed in the mist position, wiper low speed operation cycles once and then stops. For additional information about wiper operation under this condition, refer to WW-5, "LOW SPEED WIPER OPERATION" . If the switch is held in the mist position, low speed operation continues.
FAIL-SAFE FUNCTION
BCM includes fail-safe function to prevent malfunction of electrical components controlled by CAN communications if a malfunction in CAN communications occurs. BCM uses CAN communications to stop output of electrical components it controls. Until ignition switch is turned off, front wiper remains in same status as just before fail-safe control was initiated. (If wiper was in low speed operation just before fail-safe, it continues low speed operation until ignition switch is turned OFF.) When fail-safe status is initiated, BCM remains in standby until normal signals are received. When normal signals are received, fail-safe status is canceled.
COMBINATION SWITCH READING FUNCTION Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System Description
EKS005QZ
Refer to LAN-6, "CAN COMMUNICATION" .
Revision: January 2005
WW-6
2004 Quest
Schematic
FRONT WIPER AND WASHER SYSTEM
EKS00659
A B C D E F G H I J WW L M
Revision: January 2005
WW-7
WKWA1643E
2004 Quest
FRONT WIPER AND WASHER SYSTEM Wiring Diagram -- WIPER --
EKS005R0
Revision: January 2005
WW-8
LKWA0249E
2004 Quest
FRONT WIPER AND WASHER SYSTEM
A B C D E F G H I J WW L M
Revision: January 2005
WW-9
WKWA1644E
2004 Quest
FRONT WIPER AND WASHER SYSTEM
Revision: January 2005
WW-10
LKWA0250E
2004 Quest
FRONT WIPER AND WASHER SYSTEM
Terminals and Reference Values for BCM
Terminal No. (Wire color)
Signal name
Ignition switch
Measuring condition Operation or condition
EKS005R1
A
Reference Value (V) (Approx.)
B
2 (GR/R) Combination switch input 5
q Light switch and wiper switch OFF ON
q Wiper dial position 4
3 (G/Y) Combination switch input 4
q Light switch and wiper switch OFF ON
q Wiper dial position 4
4 (G/R) Combination switch input 3
q Light switch and wiper switch OFF ON
q Wiper dial position 4
5 (G/B) Combination switch input 2 6 (G/W) Combination switch input 1
ON
q Light switch and wiper switch OFF ON q Wiper dial position 4
32 (R/G) Combination switch output 5
q Light switch and wiper switch OFF ON
q Wiper dial position 4
C
D
SKIA5291E
E
F
SKIA5292E
G
H
SKIA5291E
I
J
SKIA5292E
WW
L
SKIA5291E
M
33 (R/Y) Combination switch output 4
q Light switch and wiper switch OFF ON
q Wiper dial position 4
SKIA5292E
34 (R) Combination switch output 3
q Light switch and wiper switch OFF ON
q Wiper dial position 4
SKIA5291E
Revision: January 2005
WW-11
2004 Quest
FRONT WIPER AND WASHER SYSTEM
Terminal No. (Wire color)
Signal name
35 (R/B) Combination switch output 2
Ignition switch
Measuring condition Operation or condition
Reference Value (V) (Approx.)
36 (R/W) Combination switch output 1
q Light switch and wiper switch OFF ON
q Wiper dial position 4
38 (G) Ignition switch (ON)
ON
--
39 (L)
CAN-H
ON
--
40 (Y) CAN-L
ON
--
49 (B)* Ground
--
--
52 (B/W) Ground
--
--
55 (W/B) Battery power
OFF
--
* Early production
Terminals and Reference Values for IPDM E/R
Terminal No. (Wire color)
Signal name
21 (L)
Low speed signal
31 (L/B)
High speed signal
32 (L/Y)
38 (B) 44 (Y/R)
48 (L) 49 (Y) 60 (B)
Wiper auto - stop signal
Ground Combination switch power CAN-H CAN-L Ground
Ignition switch
ON
ON
ON
-- ON ON ON --
Measuring condition
Operation or condition
Wiper switch
OFF LO
Wiper switch
OFF HI
Wiper operating
Wiper stopped
--
--
--
--
--
Battery -- -- 0 0
Battery
SKIA5292E
EKS005R2
Reference value (V) (Approx.)
0 Battery
0 Battery Battery
0 0 Battery -- -- 0
Work Flow
1. Confirm the symptom or customer complaint. 2. Understand the system description, refer to WW-4, "System Description" . 3. Perform preliminary inspection, refer to WW-13, "Preliminary Inspection" . 4. Check symptom and repair or replace the cause of the malfunction. 5. Does wiper function operate normally? If it operates normally, GO TO 6. If not, GO TO 4. 6. Inspection End.
EKS005R3
Revision: January 2005
WW-12
2004 Quest
FRONT WIPER AND WASHER SYSTEM
Preliminary Inspection
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT Inspection procedure
1. CHECK FUSE
Check if wiper or washer fuse is blown.
EKS005R4
A
B
Unit Front and rear washer motor
Power source Ignition ON or START
Fuse No.
C
47
Front wiper relay
Battery
39
BCM
Ignition ON or START Battery
16
D
j
OK or NG
OK >> GO TO 2.
E
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
F
1. Disconnect BCM connectors.
2. Check voltage between BCM harness connector terminals and
G
ground.
Terminals
Ignition switch position
(+)
Connector
Terminal (Wire color)
()
OFF
ON
M18
38 (G)
0V
Battery voltage
Ground
M19
55 (W/B)
Battery voltage Battery voltage
OK or NG
OK >> GO TO 3. NG >> Check harness for open or short between BCM and fuse.
3. GROUND CIRCUIT INSPECTION (BCM)
H
I
J
WKIA1041E
WW
Check for continuity between the following terminals on BCM con-
L
nector and ground.
Connector
Terminals
Terminal (wire color)
Ignition switch condition
M19
49 (B)
M19
52 (B/W)
Ground
OFF
* Early production
OK or NG
OK >> Inspection End. NG >> Repair/replace BCM ground circuit.
Continuity Yes
M
SKIA5294E
Revision: January 2005
WW-13
2004 Quest
FRONT WIPER AND WASHER SYSTEM
CONSULT-II Function (BCM)
EKS005R5
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
BCM diagnostic test item
Diagnostic mode
Description
WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the BCM for setting the status suitable for required operation, input/output signals are received from the BCM and received data is displayed.
DATA MONITOR
Displays BCM input/output data in real time.
Inspection by part
ACTIVE TEST SELF-DIAG RESULTS
Operation of electrical loads can be checked by sending drive signal to them. Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER
BCM part number can be read.
CONFIGURATION
Performs BCM configuration read/write functions.
CONSULT-II OPERATION
CAUTION: If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn the ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
BBIA0336E
3. Touch "BCM" on the "SELECT SYSTEM" screen. If "BCM" is not indicated, go to GI-37, "CONSULT-II Data Link Connector (DLC) Circuit" .
Revision: January 2005
WW-14
BCIA0029E
BCIA0030E
2004 Quest
FRONT WIPER AND WASHER SYSTEM
4. Select the desired part to be diagnosed on the "SELECT TEST
ITEM" screen.
A
B
C
DATA MONITOR Operation Procedure 1. Touch "WIPER" on the "SELECT TEST ITEM" screen.
LKIA0183E
D
E
2. Touch "DATA MONITOR" on the "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR ITEM" screen. F
ALL SIGNALS
Monitors all the items.
SELECTION FROM MENU Selects and monitors the individual item selected.
G 4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is
selected, all the items will be monitored.
H
6. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording,
touch "STOP".
Display Item List
I
Monitor item name "OPERATION OR UNIT"
Contents
IGN ON SW
"ON/OFF" Displays "IGN Position (ON)/OFF, ACC Position (OFF)" status as judged from ignition switch signal.
J
IGN SW CAN FR WIPER HI
"ON/OFF"
Displays "IGN switch ON (ON)/Other OFF or ACC (OFF)" status as judged from CAN communications.
"ON/OFF" Displays "Front Wiper HI (ON)/Other (OFF)" status as judged from wiper switch signal.
WW
FR WIPER LOW "ON/OFF" Displays "Front Wiper LOW (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WIPER INT
"ON/OFF" Displays "Front Wiper INT (ON)/Other (OFF)" status as judged from wiper switch signal.
L
FR WASHER SW "ON/OFF" Displays "Front Washer Switch (ON)/Other (OFF)" status as judged from wiper switch signal.
INT VOLUME
(1 - 7) Displays intermittent operation dial position setting (1 - 7) as judged from wiper switch signal.
FR WIPER STOP "ON/OFF" Displays "Stopped (ON)/Operating (OFF)" status as judged from the auto-stop signal.
M
VEHICLE SPEED "0.0 km/h" Displays vehicle speed as received from CAN communication.
ACTIVE TEST Operation Procedure 1. Touch "WIPER" on the "SELECT TEST ITEM" screen. 2. Touch "ACTIVE TEST" on the "SELECT DIAG MODE" screen. 3. Touch item(s) to be tested and check operation of the selected item(s). 4. During the operation check, touching "BACK" deactivates the operation.
Display Item List
Test item
Display on CONSULT-II screen
Description
Front wiper HI output
FR WIPER (HI)
Front wiper HI can be operated by any ON-OFF operation.
Front wiper LO output
FR WIPER (LO)
Front wiper LO can be operated by any ON-OFF operation.
Front wiper INT output
FR WIPER (INT)
Front wiper INT can be operated by any ON-OFF operation.
Revision: January 2005
WW-15
2004 Quest
FRONT WIPER AND WASHER SYSTEM
CONSULT-II Function (IPDM E/R)
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
IPDM E/R diagnostic Mode
Description
SELF-DIAG RESULTS
Displays IPDM E/R self-diagnosis results.
DATA MONITOR
Displays IPDM E/R input/output data in real time.
CAN DIAG SUPPORT MNTR
The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST
Operation of electrical loads can be checked by sending drive signal to them.
EKS005R6
CONSULT-II OPERATION
CAUTION: If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn the ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
BBIA0002E
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen. If "IPDM E/R" is not displayed, go to GI-37, "CONSULT-II Data Link Connector (DLC) Circuit" .
BCIA0029E BCIA0030E
Revision: January 2005
WW-16
2004 Quest
FRONT WIPER AND WASHER SYSTEM
4. Select the desired part to be diagnosed on the "SELECT DIAG
MODE" screen.
A
B
C
BCIA0031E
D
DATA MONITOR
Operation Procedure
1. Touch "DATA MONITOR" on the "SELECT DIAG MODE" screen.
E
2. Touch "ALL SIGNALS", "MAIN SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR
ITEM" screen. F
ALL SIGNALS
Monitors all the items.
MAIN SIGNALS
Monitors predetermined items.
SELECTION FROM MENU Selects and monitors the individual item selected.
G
3. Touch "START".
4. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is H selected, all the items will be monitored.
5. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording,
touch "STOP".
I
All Items, Main Items, Select Item Menu
Monitor item selection
Item name
CONSULT-II screen display
Display or unit
ALL
MAIN SELECTION
Description
J
SIGNALS SIGNALS FROM MENU
Front wiper request
FR WIP REQ
STOP/1LO/LO/HI
x
x
x
Signal status input from BCM. WW
Wiper auto stop WIP AUTO STOP ACT P/STOP P
x
x
x
Output status of IPDM E/R.
Wiper protection
WIP PROT
OFF/LS/HS/BLOCK
x
x
x
Control status of IPDM E/R.
L
NOTE:
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the dis-
play may not be correct.
M
ACTIVE TEST Operation Procedure 1. Touch "ACTIVE TEST" on the "SELECT DIAG MODE" screen. 2. Touch item(s) to be tested and check operation of the selected item(s). 3. During the operation check, touching "BACK" deactivates the operation.
Display Item List
Test item Front wiper (HI, LO) output
CONSULT-II screen display
FRONT WIPER
Description With a certain operation (OFF, HI, LO) front wiper relays can be operated.
Revision: January 2005
WW-17
2004 Quest
FRONT WIPER AND WASHER SYSTEM
Trouble Diagnosis
FRONT WIPER DOES NOT OPERATE
EKS005R7
CAUTION: During IPDM E/R fail-safe control, front wipers may not operate. Refer to PG-15, "CAN COMMUNICATION LINE CONTROL" to make sure that it is not in fail-safe status.
Inspection Procedure
1. CHECK IPDM E/R TO FRONT WIPERS
With CONSULT-II 1. Select "IPDM E/R" with CONSULT-II, and select "ACTIVE
TEST" on "SELECT DIAG MODE" screen. 2. Select "FRONT WIPER" on "SELECT TEST ITEM" screen.
Without CONSULT-II 1. Turn on front wipers using auto active test. Refer to PG-21,
"Auto Active Test" . 2. Confirm front wiper operation. OK or NG
OK >> GO TO 4. NG >> GO TO 2.
SKIA3486E
Revision: January 2005
WW-18
2004 Quest
FRONT WIPER AND WASHER SYSTEM
2. IPDM E/R TO FRONT WIPERS CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor connector.
3. Check continuity between IPDM E/R harness connector terminals and front wiper motor harness connector terminals.
Connector E122
Terminals
Terminal (wire color)
Connector
31 (L/B)
21 (L)
E23
32 (L/Y)
Terminal (wire color)
2 (L/B) 3 (L) 4 (L/Y)
Continuity Yes
4. Check continuity between IPDM E/R harness connector terminals and ground.
Connector E122
Terminals Terminal (wire color) 31 (L/B)
21 (L) 32 (L/Y)
Ground
Continuity No
5. Check continuity between IPDM E/R harness connector terminal and ground.
Connector
E121 E124
Terminals Terminal (wire color)
60 (B) 38 (B)
Ground
Continuity Yes
6. Check continuity between front wiper motor harness connector terminal 1 and ground.
Connector
Terminals
Terminal (wire color)
Continuity
E23
1 (B)
Ground
Yes
OK or NG
OK >> GO TO 3. NG >> Check for open circuit in harness between front wiper
motor and ground.
A B C D E
WKIA1016E
F G H
LKIA0383E
I J WW L
WKIA1021E
M
WKIA1017E
Revision: January 2005
WW-19
2004 Quest
FRONT WIPER AND WASHER SYSTEM
3. IPDM E/R INSPECTION
With CONSULT-II 1. Connect IPDM E/R connector and front wiper motor connector. 2. Select "HI" during "ACTIVE TEST". 3. When front wiper relay, and front wiper high relay are operating, check voltage between IPDM E/R termi-
nals and ground.
Without CONSULT-II 1. Connect IPDM E/R connector and front wiper motor connector. 2. Turn on front wipers using the auto active test. Refer to PG-21, "Auto Active Test" . 3. When front wiper relay, and front wiper high relay are operating,
check voltage between IPDM E/R terminals and ground.
Terminals
(+) ()
Connector Terminal (wire color)
Condition
Voltage (Approx.)
E122
21 (L) 31 (L/B)
Ground
Stopped LO operation
Stopped HI operation
0 Battery voltage
0 Battery voltage
WKIA1246E
OK or NG
OK >> Replace the front wiper motor. Refer to WW-27, "Removal and Installation of Wiper Motor and Linkage" .
NG >> Replace IPDM E/R. Refer to PG-27, "Removal and Installation of IPDM E/R" .
4. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check that "FR WIPER INT", "FR WIPER LOW" and "FR WIPER HI" turn ON-OFF according to operation of wiper switch.
OK or NG
OK >> GO TO 5. NG >> Check wiper switch. Refer to BCS-3, "COMBINATION
SWITCH READING FUNCTION" .
5. BCM INSPECTION
Select "BCM" on CONSULT-II. Carry out self-diagnosis of BCM. Displayed self-diagnosis results
NO DTC>> Replace the BCM. Refer to BCS-19, "Removal and Installation of BCM" .
CAN COMM CIRCUIT>> Check CAN communication line of BCM. GO TO BCS-13, "CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)" .
WKIA1018E
SKIA1039E
Revision: January 2005
WW-20
2004 Quest
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER STOP POSITION IS INCORRECT Inspection Procedure
1. CHECK IPDM E/R TO FRONT WIPER MOTOR
With CONSULT-II Select "IPDM E/R" with CONSULT-II. With data monitor, confirm that "WIP AUTO STOP" changes from "ACT P" to "STOP P" according to wiper operation.
Without CONSULT-II GO TO 2. OK or NG
OK >> Replace IPDM E/R. Refer to PG-27, "Removal and Installation of IPDM E/R" .
NG >> GO TO 2.
2. IPDM E/R TO FRONT WIPER MOTOR CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor connector. 3. Check continuity between IPDM E/R harness connector and
front wiper motor harness connector.
Connector E122
Terminals
Terminal (wire color)
Connector
32 (L/Y)
E23
Terminal (wire color)
4 (L/Y)
Continuity Yes
4. Check continuity between IPDM E/R harness connector terminal and ground.
Connector E122
Terminals Terminal (wire color)
32 (L/Y)
Ground
Continuity No
5. Check continuity between front wiper motor harness connector terminal 1 and ground.
Connector
Terminals Terminal (wire color)
Continuity
E23
1 (B)
Ground
Yes
OK or NG
OK >> Connect connectors. GO TO 3. NG >> q Check for short circuit or open circuit in harness
between IPDM E/R and front wiper motor.
q Check for open circuit in harness between front wiper motor and ground.
Revision: January 2005
WW-21
A B C D E
SKIA5301E
F G H I J
WKIA1020E
WW L M
LKIA0321E
WKIA1017E
2004 Quest
FRONT WIPER AND WASHER SYSTEM
3. IPDM E/R INSPECTION
While front wiper motor is stopped and while operating, measure voltage between IPDM E/R terminal 32 and ground.
Terminals
(+)
Connector
Terminal (wire color)
()
Condition
Voltage (Approx.)
E122
32 (L/Y)
Ground
Wiper operating Fluctuating
Wiper stopped
0V
OK or NG
WKIA0407E
OK >> Replace IPDM E/R. Refer to PG-27, "Removal and Installation of IPDM E/R" .
NG >> Replace front wiper motor. Refer to WW-27, "Removal and Installation of Wiper Motor and Linkage" .
ONLY FRONT WIPER LOW DOES NOT OPERATE
Inspection Procedure
1. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check that "FR WIPER LOW" turns ON-OFF according to operation of wiper switch.
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Replace wiper switch. Refer to WW-28, "Removal and Installation of Wiper and Washer Switch" .
ONLY FRONT WIPER HI DOES NOT OPERATE Inspection Procedure
1. CHECK IPDM E/R TO FRONT WIPERS
With CONSULT-II 1. Select "IPDM E/R" with CONSULT-II, and select "ACTIVE
TEST" on "SELECT DIAG MODE" screen. 2. Select "FRONT WIPER" on "SELECT TEST ITEM" screen.
Without CONSULT-II 1. Turn on front wipers using auto active test. Refer to PG-21,
"Auto Active Test" . 2. Confirm front wiper operation. OK or NG
OK >> GO TO 4. NG >> GO TO 2.
WKIA1018E SKIA3486E
Revision: January 2005
WW-22
2004 Quest
FRONT WIPER AND WASHER SYSTEM
2. IPDM E/R TO FRONT WIPERS CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor connector.
3. Check continuity between IPDM E/R harness connector terminal and front wiper motor harness connector terminal.
Connector
Terminals
Terminal (wire color)
Connector
Terminal (wire color)
Continuity
E122
31 (L/B)
E23
2 (L/B)
Yes
OK or NG
OK >> GO TO 3. NG >> Check for short circuit or open circuit in harness
between IPDM E/R and front wiper motor.
3. IPDM E/R INSPECTION
With CONSULT-II 1. Connect IPDM E/R connector and front wiper motor connector. 2. Select "HI" during "ACTIVE TEST". 3. When front wiper high relay is operating, check voltage between IPDM E/R terminals.
Without CONSULT-II 1. Connect IPDM E/R connector and front wiper motor connector. 2. Turn on front wipers using the auto active test. Refer to PG-21, "Auto Active Test" . 3. When front wiper high relay is operating, check voltage between
IPDM E/R terminals.
A B C D E
WKIA1023E
F G H I
IPDM E/R Terminals
(+)
()
Connector
Terminal (wire color)
Connector
Terminal (wire color)
Voltage (Approx.)
J WW
E122
OK or NG
31 (L/B)
E124 E121
38 (B) 60 (B)
Battery voltage
L
WKIA0409E
OK >> Replace the wiper motor. Refer to WW-27, "Removal and Installation of Wiper Motor and Linkage"
.
NG >> Replace IPDM E/R. Refer to PG-27, "Removal and Installation of IPDM E/R" .
M
4. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check that "FR WIPER HI" turns ON-OFF according to operation of wiper switch.
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Replace wiper switch. Refer to WW-28, "Removal and Installation of Wiper and Washer Switch" .
WKIA1018E
Revision: January 2005
WW-23
2004 Quest
FRONT WIPER AND WASHER SYSTEM
ONLY FRONT WIPER INT DOES NOT OPERATE Inspection Procedure
1. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check that "FR WIPER INT" turns ON-OFF according to operation of wiper switch. OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Replace wiper switch. Refer to WW-28, "Removal and Installation of Wiper and Washer Switch" .
WKIA1018E
FRONT WIPER INTERMITTENT OPERATION SWITCH POSITION CANNOT BE ADJUSTED Inspection Procedure
1. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check that "INT VOLUME" changes in order from 1 to 7 according to operation of the intermittent switch dial position. OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Replace wiper switch. Refer to WW-28, "Removal and Installation of Wiper and Washer Switch" .
WIPERS DO NOT WIPE WHEN FRONT WASHER OPERATES Inspection Procedure
1. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check that "FR WASHER SW" turns ON-OFF according to operation of front washer switch.
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Replace wiper switch. Refer to WW-28, "Removal and Installation of Wiper and Washer Switch" .
WKIA1018E
WKIA1018E
FRONT WIPERS OPERATE FOR 10 SECONDS, STOP FOR 20 SECONDS, AND AFTER REPEATING THIS OPERATION FIVE TIMES, THEY BECOME INOPERATIVE
CAUTION: q When auto stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front
wipers, IPDM E/R considers front wipers locked and stops wiper output, which causes this symptom.
q This status can be checked by using IPDM E/R "DATA MONITOR". Under this condition, "WIP PROT" reads "BLOCK".
Revision: January 2005
WW-24
2004 Quest
FRONT WIPER AND WASHER SYSTEM
Inspection Procedure
1. CHECK IPDM E/R TO FRONT WIPER MOTOR
With CONSULT-II Select "IPDM E/R" with CONSULT-II. With data monitor, confirm that "WIP AUTO STOP" changes from "ACT P" to "STOP P" according to wiper operation.
Without CONSULT-II GO TO 2. OK or NG
OK >> Replace IPDM E/R. Refer to PG-27, "Removal and Installation of IPDM E/R" .
NG >> GO TO 2.
2. IPDM E/R TO FRONT WIPER MOTOR CIRCUIT CONTINUITY INSPECTION
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor connector.
3. Check continuity between IPDM E/R harness connector terminal and front wiper motor harness connector terminal.
Connector E122
Terminals
Terminal (wire color)
Connector
32 (L/Y)
E23
Terminal (wire color)
4 (L/Y)
Continuity Yes
4. Check continuity between IPDM E/R harness connector terminal and ground.
Terminals
Connector
Terminal (wire color)
E122
32 (L/Y)
Ground
OK or NG
OK >> Connect connectors. GO TO 3. NG >> Repair harness or connector.
Continuity No
A
B
C
D
SKIA5301E
E
F
G
H
I
WKIA1020E
J
WW
L
M
LKIA0321E
Revision: January 2005
WW-25
2004 Quest
FRONT WIPER AND WASHER SYSTEM
3. IPDM E/R TO FRONT WIPER MOTOR AUTO STOP CIRCUIT INSPECTION
While front wiper motor is stopped and while operating, measure voltage between IPDM E/R terminal 32 and ground.
Terminals
(+)
Connector
Terminal (wire color)
()
Condition
Voltage (Approx.)
E122
32 (L/Y)
Ground
Wiper operating Fluctuating
Wiper stopped
0V
OK or NG
WKIA0407E
OK >> Replace IPDM E/R. Refer to PG-27, "Removal and Installation of IPDM E/R" .
NG >> Replace front wiper motor. Refer to WW-27, "Removal and Installation of Wiper Motor and Linkage" .
Removal and Installation of Front Wiper Arms, Adjustment of Wiper Arms Stop
Location
REMOVAL
EKS005R8
1. Operate front wiper motor one full cycle, then turn "OFF" (Auto Stop).
2. Remove wiper arm covers and mounting nuts, then lift wiper arms off pivots.
ADJUSTMENT 1. Prior to front wiper arm installation or adjustment:
q Operate front wiper motor one full cycle, then turn "OFF" (Auto Stop).
q Using a suitable brush, clean pivot area as illustrated. This will reduce the possiblility of wiper arm looseness.
SEL024J
2. Lift the wiper blade up, then rest it onto glass surface to set clearance "L1" and "L2" as illustrated.
Clearance "L1"
: 41.5 - 56.5 mm (1.634 - 2.224 in)
Clearance "L2"
: 52.5 - 67.5 mm (2.067 - 2.657 in)
3. Tighten wiper arm mounting nuts to specified torque.
Front wiper arm mounting nuts
: 23.6 N·m (2.4 kg-m, 17 ft-lb)
4. Eject washer fluid and operate front wiper motor several cycles, then turn "OFF" (Auto Stop).
SEL543TA
5. At the stop location (Auto Stop), ensure wiper blades are within clearance "L1" and "L2" as illustrated.
INSTALLATION 1. Operate front wiper motor one full cycle, then turn "OFF" (Auto Stop).
2. Install wiper arms and mounting nuts onto pivots and tighten to specified torque.
3. Install wiper arm covers, then check and adjust clearance "L1" and "L2" as necessary to ensure proper blade overlap.
Revision: January 2005
WW-26
2004 Quest
FRONT WIPER AND WASHER SYSTEM Removal and Installation of Wiper Motor and Linkage
EKS005R9
A
B
C
D
E
F
1. Wiper link
2. Wiper frame
3. Front wiper motor
LKIA0342E
G
REMOVAL
1. Operate the wiper motor, and stop it at the auto stop position.
H
2. Remove wiper arms from the vehicle. Refer to WW-26, "Removal and Installation of Front Wiper Arms,
Adjustment of Wiper Arms Stop Location" .
3. Remove the cowl top extension. Refer to EI-18, "Removal and Installation" .
I
4. Disconnect wiper motor connector.
5. Remove wiper frame assembly mounting bolts, and remove
wiper frame assembly.
J
6. Remove wiper motor from wiper frame assembly.
WW
L
INSTALLATION
WKIA1032E
M
CAUTION: q Do not drop the wiper motor or cause it to contact other parts.
q Check the grease conditions of the motor arm and wiper link joint(s). Apply grease if necessary.
1. Connect wiper motor to connector. Turn the wiper switch ON to operate wiper motor, then turn the wiper switch OFF (auto stop).
2. Disconnect wiper motor connector.
3. Install wiper motor to wiper frame assembly, and install assembly into the vehicle.
4. Connect wiper motor connector. Turn the wiper switch ON to operate the wiper motor, then turn wiper switch OFF (auto stop).
5. Install cowl top extension. Refer to EI-18, "Removal and Installation" .
6. Install wiper arms. Refer to WW-26, "Removal and Installation of Front Wiper Arms, Adjustment of Wiper Arms Stop Location" .
Revision: January 2005
WW-27
2004 Quest
FRONT WIPER AND WASHER SYSTEM Washer Nozzle Adjustment
q This vehicle is equipped with non-adjustable washer nozzles. q If not satisfied with washer fluid spray coverage, confirm that the
washer nozzle is installed correctly. q If the washer nozzle is installed correctly, and the washer fluid
spray coverage is not satisfactory, replace washer nozzle.
Washer Tube Layout
EKS005RA
PKIA2552E EKS005RB
Removal and Installation of Wiper and Washer Switch
REMOVAL 1. Remove steering column covers. 2. Remove wiper washer switch connector. 3. Pinch tabs at wiper and washer switch base and slide switch
away from steering column to remove.
INSTALLATION Installation is in the reverse order of removal.
Revision: January 2005
WW-28
LKIA0343E EKS005RC
WKIA0071E
2004 Quest
FRONT WIPER AND WASHER SYSTEM
Removal and Installation of Washer Tank
1. Pull out washer tank inlet. 2. Remove fender protector. Refer to EI-21, "Removal and Installa-
tion" . 3. Remove front and rear washer motor connector and washer
fluid level sensor connector. 4. Remove washer tank screws. 5. Remove front and rear washer hoses, and remove the washer
tank from the vehicle. CAUTION: After installation, add water up to the upper level of the washer tank inlet, and check for water leaks. Installation is in the reverse order of removal. Washer tank installation screw
Tightening torque: 5.5 N·m (0.56 kg-m, 49 in-lb)
Removal and Installation of Washer Motor
1. Remove fender protector. Refer to EI-21, "Removal and Installation" . 2. Remove front and rear washer motor connector and front and rear washer hoses. 3. Pull out front and rear washer motor in the direction of the arrow
as shown, and remove the front and rear washer motor from the washer tank. CAUTION: When installing front and rear washer motor, there should be no packing twists, etc. Installation is in the reverse order of removal.
EKS005RD
A
B
C
D
LKIA0345E
E
EKS005RE
F
G H
I
J
LKIA0346E
WW
L
M
Revision: January 2005
WW-29
2004 Quest
REAR WIPER AND WASHER SYSTEM
REAR WIPER AND WASHER SYSTEM Components Parts and Harness Connector Location
PFP:28710
EKS0065A
LKIA0341E
System Description
EKS0065B
q Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input terminals. Terminal combination status is read by BCM (body control module) when switch is turned ON.
q BCM controls rear wiper ON and INT (intermittent) operation. Power is supplied at all times q through 50A fusible link (letter j , located in fusible link box) q to BCM terminal 55. With the ignition switch in ON or START position, power is supplied q through 10A fuse (No. 16, located in fuse block J/B) q to BCM terminal 38, and q through 10A fuse (No. 47, located in IPDM E/R) q through IPDM E/R terminal 44 q to combination switch terminal 14. Ground is supplied q to BCM terminals 49 (early production) and 52 and q to combination switch terminal 12 q through grounds M57, M61 and M79.
REAR WIPER OPERATION
When the ignition switch is in the ON or START position, and the rear wiper switch is in the ON position, the BCM detects a rear wiper ON signal by BCM wiper switch reading function. When the BCM operates the rear wiper motor, power is supplied
q through BCM terminal 70
q to rear wiper motor terminal B.
Revision: January 2005
WW-30
2004 Quest
REAR WIPER AND WASHER SYSTEM
Ground is supplied
q to rear wiper motor terminal E
A
q through grounds D403 and D404.
With power and ground supplied, the rear wiper operates. B
INTERMITTENT OPERATION
The rear wiper motor operates the wiper arm at low speed approximately every 7 seconds.
When the wiper switch is in the rear wiper INT position, the BCM detects a rear wiper INT signal by BCM wiper switch reading function.
C
When BCM operates rear wiper motor, power supplied
q through BCM terminal 70
D
q to rear wiper motor terminal B.
Ground is supplied
q to rear wiper motor terminal E
E
q through grounds D403 and D404.
With power and ground supplied, the rear wiper operates in intermittent mode.
AUTO STOP OPERATION
F
When the rear wiper arm is not located at the base of the rear window, and the rear wiper switch is turned
OFF, the rear wiper motor will continue to operate until the rear wiper arm is at the base of the rear window.
When the rear wiper arm reaches the base, rear wiper motor terminals P and G are connected.
G
Ground is supplied
q to BCM terminal 59
q through rear wiper motor terminal P
H
q through rear wiper motor terminal G
q through grounds D403 and D404. I
REAR WASHER OPERATION
When the ignition switch is in the ON or START position, and the front and rear washer switches are OFF, the
front and rear washer motor is supplied power
J
q through 10A fuse (No. 47, located in the IPDM E/R)
q through IPDM E/R terminal 44
q through combination switch (wiper switch) terminal 14
WW
q through combination switch (wiper switch) terminal 11
q to front and rear washer motor terminal , and
q through combination switch (wiper switch) terminal 13
L
q to front and rear washer motor terminal +.
When the rear wiper switch is in rear washer position, the BCM detects a rear washer signal by BCM wiper switch reading function. Combination switch ground is supplied
M
q to front and rear washer motor terminal +
q through combination switch (wiper switch) terminal 13
q through combination switch (wiper switch) terminal 12
q through grounds M57, M61 and M79.
With ground supplied, the front and rear washer motor is operated in the rear direction. When the BCM detects that the rear washer motor has operated for 0.4 seconds or longer, BCM operates the rear wiper motor. When the BCM detects that the rear washer switch is in OFF, the rear wiper motor cycles approximately 3 times and then stops.
BCM WIPER SWITCH READING FUNCTION Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
Revision: January 2005
WW-31
2004 Quest
REAR WIPER AND WASHER SYSTEM Wiring Diagram -- WIP/ R --
EKS0065C
Revision: January 2005
WW-32
WKWA1527E
2004 Quest
REAR WIPER AND WASHER SYSTEM
A B C D E F G H I J WW L M
Revision: January 2005
WW-33
LKWA0253E
2004 Quest
REAR WIPER AND WASHER SYSTEM
Terminals and Reference Values for BCM
Terminal No. (Wire color)
Signal name
Ignition switch
Measuring condition Operation or condition
EKS0065D
Reference Value (V) (Approx.)
2 (GR/R) Combination switch input 5
q Light switch and wiper switch OFF ON
q Wiper dial position 4
3 (G/Y) Combination switch input 4
q Light switch and wiper switch OFF ON
q Wiper dial position 4
4 (G/R) Combination switch input 3
q Light switch and wiper switch OFF ON
q Wiper dial position 4
5 (G/B) Combination switch input 2 6 (G/W) Combination switch input 1
ON
q Light switch and wiper switch OFF q Wiper dial position 4 ON
32 (R/G) Combination switch output 5
q Light switch and wiper switch OFF ON
q Wiper dial position 4
33 (R/Y) Combination switch output 4
q Light switch and wiper switch OFF ON
q Wiper dial position 4
34 (R) Combination switch output 3
q Light switch and wiper switch OFF ON
q Wiper dial position 4
SKIA5291E SKIA5292E SKIA5291E SKIA5292E SKIA5291E SKIA5292E SKIA5291E
Revision: January 2005
WW-34
2004 Quest
REAR WIPER AND WASHER SYSTEM
Terminal No. (Wire color)
Signal name
35 (R/B) Combination switch output 2
Ignition switch
ON
Measuring condition Operation or condition
Reference Value (V)
A
(Approx.)
B
q Light switch and wiper switch OFF
36 (R/W) Combination switch output 1
ON q Wiper dial position 4
C
38 (G) Ignition switch (ON)
ON
--
SKIA5292E
Battery voltage
D
49 (B)* Ground
ON
--
0V
52 (B/W) Ground
ON
--
55 (W/B) Battery power
OFF
--
0V
E
Battery voltage
59 (BR) Rear wiper auto stop signal
ON
70 (SB) Rear wiper motor output signal
ON
* Early production
Rear wiper operating
Rear wiper stopped
Rear wiper switch
OFF ON
0V
Battery voltage
F
0V
Battery voltage
G
Terminals and Reference Values for IPDM E/R
Terminal No.
Wire color
Signal name
44
Y/R
Front and rear washer motor power supply
Ignition switch
ON
Measuring condition Operation or condition --
EKS0065E
H
Reference Value (V) (Approx.)
I
Battery voltage
How to Proceed With Trouble Diagnosis
EKS0065F
J
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-30, "System Description" .
3. Perform the Preliminary Check. Refer to WW-35, "Preliminary Check" .
WW
4. Check symptom and repair or replace the cause of malfunction.
5. Does the rear wiper operate normally? If YES: GO TO 6. If NO: GO TO 4.
L
6. Inspection End.
Preliminary Check
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
Inspection procedure
1. CHECK FUSE
EKS0065G
M
Check if wiper or washer fuse is blown.
Unit
Power source
Fuse No.
Front and rear washer motor
Ignition ON or START
47
Ignition ON or START
16
BCM
Battery
j
OK or NG
OK >> GO TO 2. NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
Revision: January 2005
WW-35
2004 Quest
REAR WIPER AND WASHER SYSTEM
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connectors.
2. Check voltage between BCM harness connector terminals and ground.
Terminals
Ignition switch position
(+)
Connector
Terminal (Wire color)
()
OFF
ON
M18
38 (G)
0V
Battery voltage
Ground
M19
55 (W/B)
Battery voltage Battery voltage
OK or NG
OK >> GO TO 3. NG >> Check harness for open or short between BCM and fuse.
3. GROUND CIRCUIT INSPECTION (BCM)
Check for continuity between the following terminals on BCM connector and ground.
Connector
Terminals
Terminal (wire color)
Ignition switch condition
M19 M19
49 (B)* 52 (B/W)
Ground
OFF
* Early production
OK or NG
OK >> Inspection End. NG >> Repair/replace BCM ground circuit.
Continuity Yes
WKIA1041E SKIA5294E
Revision: January 2005
WW-36
2004 Quest
REAR WIPER AND WASHER SYSTEM
CONSULT-II Function (BCM)
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
EKS0065H
A
BCM diagnostic test item
Diagnostic mode WORK SUPPORT DATA MONITOR
Description
B
Supports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
C
Displays BCM input/output data in real time.
Inspection by part
ACTIVE TEST
Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS
Displays BCM self-diagnosis results.
D
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER
BCM part number can be read.
CONFIGURATION
Performs BCM configuration read/write functions.
E
CONSULT-II OPERATION
CAUTION:
F
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
G
SULT-II CONVERTER to the data link connector, then turn the
ignition switch ON.
H
I
2. Touch "START (NISSAN BASED VHCL)".
J
BBIA0336E
WW
L
3. Touch "BCM" on the "SELECT SYSTEM" screen. If "BCM" is not indicated, go to GI-37, "CONSULT-II Data Link Connector (DLC) Circuit" .
M
BCIA0029E
Revision: January 2005
WW-37
BCIA0030E
2004 Quest
REAR WIPER AND WASHER SYSTEM
4. Select the desired part to be diagnosed on the "SELECT TEST ITEM" screen.
LKIA0183E
DATA MONITOR Operation Procedure 1. Touch "WIPER" on "SELECT TEST ITEM" screen. 2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen. 3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on "SELECT MONITOR ITEM" screen.
All signals
Monitors all the items.
Selection from menu Selects and monitors the individual item selected.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is selected, all the items will be monitored.
6. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".
Display Item List
Monitor item name "OPERATION OR UNIT"
Contents
IGN ON SW
"ON/OFF" Displays "IGN Position (ON)/OFF, ACC Position (OFF)" status as judged from ignition switch signal.
IGN SW CAN
"ON/OFF" Displays "IGN Position (ON)/OFF, ACC Position (OFF)" status as judged from ignition switch signal.
FR WIPER INT
"ON/OFF" Displays "Front Wiper INT (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WIPER LOW "ON/OFF" Displays "Front Wiper LOW (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WIPER HI
"ON/OFF" Displays "Front Wiper HI (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WASHER SW "ON/OFF" Displays "Front Washer Switch (ON)/Other (OFF)" status as judged from wiper switch signal.
INT VOLUME
(1 - 7) Displays intermittent operation dial position setting (1 - 7) as judged from wiper switch signal.
VEHICLE SPEED "0.0 km/h" Displays vehicle speed as received over CAN communication.
FR WIPER STOP "ON/OFF" Displays "Stopped (ON)/Operating (OFF)" status as judged from the auto-stop signal.
RR WIPER INT
"ON/OFF" Displays "Rear Wiper INT (ON)/Other (OFF)" status as judged from wiper switch signal.
RR WIPER ON
"ON/OFF" Displays "Rear Wiper (ON)/Other (OFF)" status as judged from wiper switch signal.
RR WASHER SW "ON/OFF" Displays "Rear Washer Switch (ON)/Other (OFF)" status as judged from wiper switch signal.
RR WIPER STOP "ON/OFF" Displays "Stopped (OFF)/Operating (ON)" status as judged from the auto-stop signal.
ACTIVE TEST Operation Procedure 1. Touch "WIPER" on the "SELECT TEST ITEM" screen. 2. Touch "ACTIVE TEST" on the "SELECT DIAG MODE" screen. 3. Touch item to be tested and check operation of the selected item. 4. During the operation check, touching "BACK" deactivates the operation.
Revision: January 2005
WW-38
2004 Quest
REAR WIPER AND WASHER SYSTEM
Display Item List
Test item
Display on CONSULT-II screen
Description
A
Front wiper HI output
FR WIPER (HI)
Front wiper HI can be operated by any ON-OFF operation.
Front wiper LO output Front wiper INT output
FR WIPER (LO) FR WIPER (INT)
Front wiper LO can be operated by any ON-OFF operation.
B
Front wiper INT can be operated by any ON-OFF operation.
Rear wiper output
RR WIPER
Rear wiper can be operated by any ON-OFF operation.
Rear Wiper Does Not Operate
1. REAR WIPER ACTIVE TEST
1. Turn on rear wiper using "ACTIVE TEST". Refer to WW-38, "ACTIVE TEST" .
C
EKS0065I
D
2. Make sure rear wiper operates.
Wiper should operate.
E
OK or NG
OK >> GO TO 6.
F
NG >> GO TO 2.
2. CHECK REAR WIPER MOTOR CIRCUIT G
1. Turn ignition switch OFF.
2. Disconnect BCM connector and rear wiper motor connector.
3. Check continuity between BCM harness connector M20 terminal
H
70 (SB) and rear wiper motor harness connector D507 terminal
B (SB).
Continuity should exist.
I
OK or NO OK >> GO TO 3. NO >> Repair harness or connector.
3. CHECK REAR WIPER MOTOR SHORT CIRCUIT
J
WKIA1024E
WW
Check continuity between rear wiper motor harness connector D507 terminal B (SB) and ground.
L Continuity should not exist.
OK or NG
OK >> GO TO 4.
M
NG >> After repairing harness, be sure to disconnect battery
negative cable, and then reconnect it.
WKIA1025E
Revision: January 2005
WW-39
2004 Quest
REAR WIPER AND WASHER SYSTEM
4. CHECK GROUND CIRCUIT
Check continuity between rear wiper motor harness connector D507 terminal E (B) and ground.
Continuity should exist. OK or NG
OK >> GO TO 5. NG >> Repair harness or connector.
5. CHECK REAR WIPER OPERATING
1. Connect BCM connector and rear wiper motor connector. 2. Select "RR WIPER" during "ACTIVE TEST". Refer to WW-38,
"ACTIVE TEST" . When rear wiper is operating, check voltage between BCM harness connector terminal and ground.
WKIA1026E
Terminals
(+)
Connector
Terminal (Wire color)
()
Condition
Voltage (Approx.)
Stopped
0V
M20
70 (SB)
Ground
ON operation Battery voltage
WKIA3906E
OK or NG
OK >> Replace rear wiper motor. Refer to WW-43, "Removal and Installation of Rear Wiper Motor" . NG >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
6. CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make sure "RR WIPER INT", "RR WIPER ON" turn ON-OFF according to operation of wiper switch.
When wiper switch is in INT position
When wiper switch is in ON position
: RR WIPER INT ON : RR WIPER ON
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Check the wiper switch. Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
SKIA4243E
Revision: January 2005
WW-40
2004 Quest
REAR WIPER AND WASHER SYSTEM
Rear Wiper Stop Position Is Incorrect
1. CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make sure "RR WIPER STOP" turns ON-OFF according to wiper operation.
When wiper switch is in OFF position
: RR WIPER STOP OFF
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> GO TO 2.
2. CHECK REAR WIPER MOTOR CIRCUIT
1. Turn ignition switch OFF. 2. Disconnect BCM connector and rear wiper motor connector. 3. Check continuity between BCM harness connector M20 terminal
59 (BR) and rear wiper motor harness connector D507 terminal P (BR).
Continuity should exist.
OK or NG OK >> GO TO 3. NG >> Repair harness or connector.
3. CHECK REAR WIPER MOTOR SHORT CIRCUIT
Check continuity between rear wiper motor harness connector D507 terminal P (BR) and ground.
Continuity should not exist.
OK or NG OK >> GO TO 4. NG >> Repair harness or connector.
4. CHECK GROUND CIRCUIT
Check continuity between rear wiper motor harness connector D507 terminal E (B) and ground.
Continuity should exist.
OK or NG OK >> GO TO 5. NG >> Repair harness or connector.
Revision: January 2005
WW-41
EKS0065J
A
B
C
D
SKIA4244E
E
F
G
H
WKIA1029E
I
J
WW
L
WKIA1030E
M
WKIA1026E
2004 Quest
REAR WIPER AND WASHER SYSTEM
5. CHECK AUTO STOP SIGNAL
1. Connect BCM connector. 2. Turn ignition switch ON. 3. Check voltage between rear wiper motor harness connector
D507 terminal P (BR) and ground.
Battery voltage should exist.
OK or NG OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" . NG >> Replace rear wiper motor. Refer to WW-43, "Removal and Installation of Rear Wiper Motor" .
Only Rear Wiper Does Not Operate
1. CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make sure "RR WIPER ON" turns ON-OFF according to operation of wiper switch.
When rear wiper switch is in ON position
: RR WIPER ON
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Check the wiper switch. Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
Only Rear Wiper Intermittent Does Not Operate
1. CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make sure "RR WIPER INT" turns ON-OFF according to operation of wiper switch.
When rear wiper switch is in INT position
: RR WIPER INT ON
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Check the wiper switch. Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
Wiper Does Not Wipe When Rear Washer Operates
1. CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make sure "RR WASHER SW" turns ON-OFF according to operation of rear washer switch.
When rear wiper switch is in WASHER position
: RR WASHER SW ON
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> Check the wiper switch. Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
Revision: January 2005
WW-42
WKIA3907E EKS0065K
SKIA4248E EKS0065L
SKIA4249E EKS0065M
SKIA4250E
2004 Quest
REAR WIPER AND WASHER SYSTEM
Removal and Installation of Rear Wiper Arm
REMOVAL
EKS0065N
A
1. Operate rear wiper motor one full cycle, then turn "OFF" (Auto Stop).
2. Lift wiper arm pivot cover open and remove mounting nut, then remove the wiper arm.
INSTALLATION
B
1. Prior to rear wiper arm installation: operate wiper motor one full cycle then turn "OFF" (Auto Stop).
q Operate wiper motor one full cycle, then turn "OFF" (Auto Stop).
C
q Using a suitable brush, clean pivot area as illustrated. This will
reduce the possibility of wiper arm looseness.
2. Install rear wiper arm onto pivot and ensure wiper blade is paral-
D
lel to the ground.
3. Tighten wiper arm mounting nut to specification, then close pivot
cover.
E
Rear wiper arm mounting nut
: 15.5 N·m (1.6 kg-m, 11 ft-lb)
F
SEL024J
Removal and Installation of Rear Wiper Motor
EKS0065O
G
H
I
J
WW
L
M
1. Wiper arm cover 4. Wiper blade
2. Pivot cap 5. Wiper arm
3. Rear wiper motor
LKIA0350E
Revision: January 2005
WW-43
2004 Quest
REAR WIPER AND WASHER SYSTEM
REMOVAL 1. Remove rear wiper arm. Refer to WW-43, "Removal and Instal-
lation of Rear Wiper Arm" . 2. Remove pivot cap. 3. Remove back door finisher lower. Refer to EI-34, "Removal and
Installation" . 4. Disconnect rear wiper motor connector. 5. Remove rear wiper motor mounting bolts, and remove rear
wiper motor.
INSTALLATION CAUTION: q Do not drop the wiper motor or cause it to contact other parts.
1. Clean up the pivot area as illustrated. This will reduce possibility of wiper arm looseness.
2. Install rear wiper motor to the vehicle.
3. Attach pivot cap.
4. Connect rear wiper motor connector.
5. Install back door finisher lower. Refer to EI-34, "Removal and Installation" .
6. Attach wiper arm. Refer to WW-43, "Removal and Installation of Rear Wiper Arm" .
Rear Washer Nozzle Adjustment
q Adjust washer nozzle with suitable tool as shown in the figure.
Adjustable range
: ±15° (In any direction)
LKIA0344E
SEL024J EKS0065P
LKIA0349E
Revision: January 2005
WW-44
WEL912A
2004 Quest
REAR WIPER AND WASHER SYSTEM Rear Washer Tube Layout
Removal and Installation for Rear Washer Nozzle
REMOVAL 1. Remove back door finisher upper. Refer to EI-34, "Removal and
Installation" . 2. Remove rear washer tube from nozzle. 3. Release retaining clips, and remove washer nozzle.
INSTALLATION Installation is in the reverse order of removal.
Check Valve
q A check valve is provided in the washer fluid line. Be careful not to connect check valve to washer tube in the wrong direction.
EKS0065Q
A
B
C
D
E
F
LKIA0347E
G
EKS0065R
H
I
J
LKIA0348E
WW
L
EKS0065S
M
Removal and Installation for Rear Wiper and Washer Switch
Refer to WW-28, "Removal and Installation of Wiper and Washer Switch" .
Removal and Installation for Washer Tank
Refer to WW-29, "Removal and Installation of Washer Tank" .
Revision: January 2005
WW-45
PKIA2546E EKS0065T EKS0065U
2004 Quest
REAR WIPER AND WASHER SYSTEM
Removal and Installation for Washer Motor
Refer to WW-29, "Removal and Installation of Washer Motor" .
EKS0065V
Revision: January 2005
WW-46
2004 Quest
SOCKET Wiring Diagram -- P/SCKT --
SOCKET
PFP:253A2
A
EKS005RH
B C D E F G H I J WW L M
Revision: January 2005
WW-47
WKWA2792E
2004 Quest
SOCKET
Removal and Installation of Power Sockets
REMOVAL NOTE: Removal and Installation is common for all power sockets. 1. Remove inner socket from the ring, while pressing the hook on
the ring out from square hole. 2. Disconnect power socket connector. 3. Remove ring from power socket finisher while pressing pawls.
INSTALLATION Installation is in reverse order of removal.
EKS005RI WKIA1035E WKIA1037E WKIA1036E
Revision: January 2005
WW-48
2004 Quest
HORN Wiring Diagram -- HORN --
HORN
PFP:25610
A
EKS005RJ
B C D E F G H I J WW L M
Revision: January 2005
WW-49
LKWA0254E
2004 Quest
HORN
Removal and Installation
REMOVAL 1. Remove the front bumper. Refer to EI-13, "Removal and Installation" . 2. Disconnect horn connector. 3. Remove horn bolt and remove horn from vehicle.
EKS0065W WKIA1033E
INSTALLATION 1. Tighten horn bolt to specified torque.
Horn bolt
: 17 N·m (1.7 kg-m, 13 ft-lb)
2. Reconnect horn connector. 3. Install front bumper. Refer to EI-13, "Removal and Installation" .
WKIA1034E
Revision: January 2005
WW-50
2004 Quest
FrameMaker SGML 5.5.6p145 Acrobat Distiller 4.05 for Windows