INFINITI QX56 2006 Factory Service Manual

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REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
Display Item List
Rear Wiper Does Not OperateEKS00GBJ
1. REAR WIPER ACTIVE TEST
1. Select "BCM" on CONSULT-II, and select "WIPER" on "SELECT TEST ITEM" screen.
2. Select "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Select "RR WIPER" on "SELECT TEST ITEM" screen.
4. Make sure rear wiper operates.
OK or NG
OK >> GO TO 7.
NG >> GO TO 2.
2. CHECK REAR WIPER MOTOR CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect BCM connector and rear wiper motor connector.
3. Check continuity between BCM harness connector terminals and rear wiper motor harness connector terminals.
OK or NO
OK >> GO TO 3.
NO >> Repair harness or connector.
3. CHECK GLASS HATCH AJAR SWITCH
1. Make sure hatch glass is closed.
2. Check continuity between BCM connector M19 terminal 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness if shorted. If not, refer to BL-31, "
Door
Switch Check" for further glass hatch ajar switch diag-
nosis.
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.
Rear wiper output RR WIPERRear wiper can be operated by any ON-OFF operation.
Wiper should operate.
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BCMRear wiper motor
Continuity
Connector Terminal Connector Terminal
M19 55
D704 4
Ye s
54 6
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42 - Ground: Continuity should not exist.
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4. CHECK REAR WIPER MOTOR AUTO STOP CIRCUITS
1. Disconnect BCM connector M18.
2. Check continuity between BCM harness connector terminals and rear wiper motor harness connector terminals.
OK or NO
OK >> GO TO 5.
NO >> Repair harness or connector.
5. CHECK REAR WIPER MOTOR AUTO STOP SWITCH GROUNDS
Check continuity between rear wiper motor harness connector D704
terminals and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK REAR WIPER OPERATING
1. Connect BCM connectors and rear wiper motor connector.
2. Turn ignition switch ON.
3. Select “RR WIPER ” during "ACTIVE TEST". Refer to WW-43,
"ACTIVE TEST" . When rear wiper is operating, check voltage
between BCM connector terminals and ground.
OK or NG
OK >> Replace rear wiper motor. Refer to WW-50, "Rear Wiper Motor" .
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
BCMRear wiper motor
Continuity
Connector Terminal Connector Terminal
M18 26
D704 1
Ye s
M19 44 2
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Rear wiper motor
Continuity
Connector Terminal
D704 3
Ground Yes
5
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BCM
(– ) Condition Voltage
(Approx.)
(+)
Connector Terminal
M19 54
Ground Operating Fluctuating
55 End of travel
(stopped) 0V
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REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
7. 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.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Check the wiper switch. Refer to WW-6, "
COMBINA-
TION SWITCH READING FUNCTION" .
Rear Wiper Stop Position Is IncorrectEKS00BEJ
1. CHECK AUTO STOP SWITCH INPUT SIGNALS
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make
sure "RR WIPER STOP" and "RR AUTO STOP 2" turn ON-OFF
according to wiper operation.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> GO TO 2.
2. CHECK AUTO STOP CIRCUITS FOR SHORT TO GROUND
1. Turn ignition switch to OFF.
2. Disconnect BCM and rear wiper motor connectors.
3. Check continuity between BCM harness connector terminals and ground.
OK or NO
OK >> GO TO 3.
NO >> Repair harness or connector. When wiper switch is in
INT position
: RR WIPER INT ON
When wiper switch is in
ON position : RR WIPER ON
SKIA4243E
When wiper switch is OFF
and arm on stop : RR WIPER STOP ON
: RR AUTO STOP 2 ON
When wiper switch is ON and arm in position A : RR WIPER STOP OFF
: RR AUTO STOP 2 ON
When wiper switch is ON counterclockwise sweep : RR WIPER STOP OFF
: RR AUTO STOP 2 OFF
When wiper switch is ON and arm in position B : RR WIPER STOP ON
: RR AUTO STOP 2 OFF
When wiper switch is ON clockwise sweep : RR WIPER STOP OFF
: RR AUTO STOP 2 OFF
When wiper switch is ON and arm in position A : RR WIPER STOP ON
: RR AUTO STOP 2 OFF
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Terminals
Continuity
Connector Terminal
M18 26
Ground No
M19 44
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Revision: November 2009 2006 QX56
3. CHECK REAR WIPER MOTOR AUTO STOP SWITCH GROUNDS
Check continuity between rear wiper motor harness connector D704
terminals and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK REAR WIPER OPERATING
1. Connect BCM connectors and rear wiper motor connector.
2. Turn ignition switch ON.
3. Turn rear wiper switch ON, then to OFF when wiper arm reaches mid sweep.
4. Check voltage between rear wiper motor connector D704 termi- nal 6 and ground.
OK or NG
OK >> Replace rear wiper motor. Refer to WW-50, "Rear Wiper
Motor" .
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
Only Rear Wiper Does Not OperateEKS00BEK
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.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Check the wiper switch. Refer to WW-6, "
COMBINA-
TION SWITCH READING FUNCTION" .
Terminals
Continuity
Connector Terminal
D704 1
Ground No
2
3
Ye s
5
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Battery voltage should exist on the reverse wipe
until arm is seated in the stop.
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When rear wiper switch is in
ON position : RR WIPER ON ON
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REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
Only Rear Wiper Intermittent Does Not OperateEKS00BEL
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.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Check the wiper switch. Refer to WW-6, "
COMBINA-
TION SWITCH READING FUNCTION" .
Wiper Does Not Wipe When Rear Washer OperatesEKS00BEM
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.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Check the wiper switch. Refer to WW-6, "
COMBINA-
TION SWITCH READING FUNCTION" .
When rear wiper switch is in
INT position
: RR WIPER INT ON
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When rear wiper switch is in
WASHER position: RR WASHER SW ON
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Revision: November 2009 2006 QX56
Rear Wiper Arm EKS00BEN
REMOVAL AND INSTALLATION
Removal
1. Remove wiper arm cover, and remove rear wiper arm nut.
2. Remove the wiper arm.
3. Remove wiper blade.
INSTALLATION
1. Operate rear wiper motor one full cycle, then turn "OFF" (Auto Stop).
2. Clean up the pivot area as illustrated. This will reduce the possi-
bility of wiper arm looseness.
3. Install wiper blade.
4. Install rear wiper arm so that the arm rests in the stopper and tighten rear wiper arm nut to specification.
5. Install wiper arm cover.
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Rear wiper arm nut : 10.2 N·m (1.0 kg-m, 8 ft-lb)
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REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
Rear Wiper Motor EKS00BEO
REMOVAL AND INSTALLATION
REMOVAL
1. Remove wiper arm. Refer to WW-49, "Rear Wiper Arm" .
2. Remove pivot cap.
3. Remove back door lock assembly. Refer to BL-136, "
Door Lock Assembly" .
4. Disconnect rear wiper motor connector.
5. Remove rear wiper motor bolts, and remove rear wiper motor.
INSTALLATION
CAUTION:

Do not drop the wiper motor or cause it to contact other parts.
1. Install rear wiper motor to the vehicle.
2. Connect rear wiper motor connector.
3. Install back door lock assembly. Refer to BL-135, "
BACK DOOR LOCK" .
4. Install pivot cap.
5. Install wiper arm. Refer to WW-49, "
Rear Wiper Arm" .
Rear Washer Nozzle AdjustmentEKS00BEP

This vehicle is equipped with a non-adjustable rear washer nozzle.

If not satisfied with washer fluid spray coverage, confirm that the washer nozzle is installed correctly.

If the washer nozzle is installed correctly, and the washer fluid spray coverage is not satisfactory, replace
the washer nozzle.
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1. Wiper arm cover 2. Wiper arm and blade 3. Pivot cap
4. Rear wiper motor 5. Wiper arm stop 6. Rear wiper arm nut

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Rear Washer Tube LayoutEKS00BEQ
NOTE:
Connect the check valve (2) to the washer fluid reservoir tube (1) so
that the directional arrow on the check valve (2) points towards the
washer nozzle tube (3).
Rear Washer NozzleEKS00BER
REMOVAL AND INSTALLATION
Removal
1. Remove the rear spoiler. Refer to EI-26, "REAR SPOILER" .
2. Release retaining clips, and remove washer nozzle.
INSTALLATION
Installation is in the reverse order of removal.
Removal and InstallationEKS00BET
REAR WIPER AND WASHER SWITCH
Refer to WW-30, "Wiper and Washer Switch" .
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1. Rear washer nozzle 2. Washer fluid reservoir3. Check valve
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REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
WASHER FLUID RESERVOIR
Refer to WW-30, "REMOVAL AND INSTALLATION" .
WASHER MOTOR
Refer to WW-31, "Washer Motor" .

POWER SOCKETWW-53
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Revision: November 2009 2006 QX56
POWER SOCKETPFP:253A2
Wiring Diagram — P/SCKT — EKS00BEW
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