rear door INFINITI QX56 2007 Factory Service Manual

SE-36
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
A part of seat system does not operate (both automatical-
ly and manually).1. Sliding motor circuit inspection SE-37
2. Reclining motor LH circuit inspection SE-38
3. Lifting motor (front) circuit inspectionSE-39
4. Lifting motor (rear) circuit inspectionSE-40
5. If the above systems are normal, replace the driver seat
control unit.SE-83
A part of pedal adjust and door mirror does not operate
(both automatically and manually).1. Pedal adjusting motor circuit inspectionSE-412. Mirror motor LH circuit check SE-42
3. Mirror motor RH circuit check SE-44
4. If the above systems are normal, replace the automatic
drive positioner control unit.SE-11
A part of seat system does not operate (only automatic
operation).1. Sliding sensor circuit inspectionSE-46
2. Reclining sensor circuit inspectionSE-47
3. Lifting sensor (front) circuit inspectionSE-48
4. Lifting sensor (rear) circuit inspectionSE-49
5. If the above systems are normal, replace the driver seat
control unit.SE-83
A part of door mirror system does not operate (only auto-
matic operation).1. Mirror sensor LH circuit checkSE-512. Mirror sensor RH circuit checkSE-53
3. If the above systems are normal, replace the automatic
drive positioner control unit.SE-11
All of the automatic operations do not operate.1.A/T device (park position switch) circuit inspectionSE-69
2. UART communication line circuit inspectionSE-73
3. Pedal adjusting sensor circuit inspectionSE-50
4. Steering wheel tilt sensor circuit inspectionSE-54
4. If all the above systems are normal, replace the automatic
drive positioner control unit.SE-11
A part of seat system does not operate (only manual op-
eration).1. Sliding switch circuit inspectionSE-55
2. Reclining switch circuit inspectionSE-56
3. Lifting switch (front) circuit inspectionSE-58
4. Lifting switch (rear) circuit inspectionSE-59
5. If the above systems are normal, replace the driver seat
control unit.SE-83
A part of pedal adjust and door mirror does not operate
(only manual operation).1. Pedal adjusting switch circuit inspection SE-61
2. Door mirror remote control switch (change over switch)
circuit inspection SE-62
3. Door mirror remote control switch (mirror switch) switch-
ing circuit inspection SE-64
4. If the above systems are normal, replace the automatic
drive positioner control unit.SE-11
Automatic drive positioner system does not operate (only
memory switch operation).1. Seat memory switch circuit inspectionSE-672. If the above systems are normal, replace the driver seat
control unit.SE-83
Seat memory indicator lamps 1 and 2 do not illuminate.1. Seat memory indicator lamp circuit inspectionSE-672. If all the above systems are normal, replace the driver seat
control unit.SE-83
Symptom Diagnoses / service procedure Refer to page

REAR WIPER AND WASHER SYSTEM
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< SERVICE INFORMATION >
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• through BCM terminal 54
• through BCM terminal 67
• through grounds M57, M61 and M79.
With output circuit 1 power and ground supplied, the rear wiper motor operates in a counterclockwise sweep
direction until auto stop switch 1 closes (full sweep position). Auto stop switch 1 supplies ground
• to BCM terminal 44
• through rear wiper motor terminal 2
• through rear wiper motor terminal 5
• through grounds B117 and B132.
When the BCM receives this ground signal it turns off output circuit 1 and turns on output circuit 2.
Power is supplied to output circuit 2 for reverse operation (clockwise sweep),
• through BCM terminal 54
• to rear wiper motor terminal 6.
Ground is supplied
• to rear wiper motor terminal 4
• through BCM terminal 55
• through BCM terminal 67
• through grounds M57, M61 and M79.
With output circuit 2 power and ground supplied the rear wiper motor operates in a clockwise sweep direction
until auto stop switch 2 closes (full sweep position). Auto stop switch 2 supplies ground
• to BCM terminal 26
• through rear wiper motor terminal 1
• through rear wiper motor terminal 3
• through grounds B117 and B132.
When the BCM receives this ground signal it turns off output circuit 2 and turns on output circuit 1. This pro-
cess repeats until the rear wiper switch or ignition switch is turned off.
If the ignition switch is turned to OFF during operation, the rear wiper motor will immediately stop. If the igni-
tion switch is turned ON after this condition, and the BCM does not receive a rear wiper switch ON or INT sig-
nal, the BCM will operate the rear wiper to the auto stop position.
If the BCM does not receive a change in status in either auto stop switch 1 or auto stop switch 2 within a 5 sec-
ond period of output circuit 1 or output circuit 2 operation, the BCM will turn off output circuit 1 and output cir-
cuit 2.
If the BCM detects the rear door glass ajar signal during rear wiper motor operation, the BCM will operate the
rear wiper motor to the auto stop position. Once the rear door glass ajar signal returns to open (not grounded)
for 5 or more seconds, the BCM will resume rear wiper motor operation.
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 request through the
combination switch (wiper switch) reading function.
The BCM controls rear wiper motor operation by switching direction of current flow between the two rear wiper
motor output circuits.
Power is supplied to output circuit 1 for forward operation (counterclockwise sweep),
• through BCM terminal 55
• to rear wiper motor terminal 4.
Ground is supplied
• to rear wiper motor terminal 6
• through BCM terminal 54
• through BCM terminal 67
• through grounds M57, M61 and M79.
With output circuit 1 power and ground supplied, the rear wiper motor operates in a counterclockwise sweep
direction until auto stop switch 1 closes (full sweep position). Auto stop switch 1 supplies ground
• to BCM terminal 44
• through rear wiper motor terminal 2
• through rear wiper motor terminal 5
• through grounds B117 and B132.
When the BCM receives this ground signal it turns off output circuit 1 and turns on output circuit 2.
Power is supplied to output circuit 2 for reverse operation (clockwise sweep),
• through BCM terminal 54
• to rear wiper motor terminal 6.
Ground is supplied
• to rear wiper motor terminal 4

REAR WIPER AND WASHER SYSTEM
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Rear Wiper Does Not OperateINFOID:0000000003533577
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-25, "
Door
Switch Check" for further glass hatch ajar switch diagno-
sis.
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.Wiper should operate.
SKIA3503E
BCM Rear wiper motor
Continuity
Connector Terminal Connector Terminal
M1955
D7044
Ye s
54 6
WKIA1413E
42 - Ground : Continuity should not exist.
WKIA1414E
BCM Rear wiper motor
Continuity
Connector Terminal Connector Terminal
M18 26
D7041
Ye s
M19 44 2
WKIA1415E

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< SERVICE INFORMATION >
REAR WIPER AND WASHER SYSTEM
Removal
1. Remove wiper arm. Refer to WW-37, "Rear Wiper Arm".
2. Remove pivot cap.
3. Remove back door lock assembly. Refer to BL-114
.
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 toBL-114
.
4. Install pivot cap.
5. Install wiper arm. Refer toWW-37, "
Rear Wiper Arm".
Rear Washer Nozzle AdjustmentINFOID:0000000003533584
• 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.
WKIA4567E
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