INFINITI QX56 2011 Factory Service Manual

PWC-36
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Refer to GI-40, "Intermittent Incident".
>> INSPECTION END
FRONT POWER WINDOW SWITCH (PASSENGER SIDE)
FRONT POWER WINDOW SWITCH (PASSENGE R SIDE) : Diagnosis Procedure
INFOID:0000000006217291
1.CHECK POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect front power window switch (passenger side) connector.
3. Check voltage between front power window switch (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and front power window switch (passenger side) har-
ness connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK GROUND CIRCUIT
Check continuity between front power window s witch (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
(+)
(–)Voltage (V)
(Approx.)
Front power window switch
(passenger side)
Connector Terminal D25 10Ground12
BCM Front power window switch
(passenger side) Continuity
Connector Terminal Connector Terminal
M70 69 D25 10 Existed
BCM GroundContinuity
Connector Terminal
M70 69 Not existed
Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 11 Existed
Revision: 2010 May2011 QX56

POWER SUPPLY AND GROUND CIRCUITPWC-37
< DTC/CIRCUIT DIAGNOSIS >
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>> INSPECTION END
REAR POWER WINDOW SWITCH
REAR POWER WINDOW SWITCH : Diagnosis ProcedureINFOID:0000000006217292
1.CHECK POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH connec tor and rear power window switch RH connector.
3. Turn ignition switch ON.
4. Check voltage between rear power window switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector and rear power window switch harness connector.
4. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear power window switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
(+)
(–)Voltage (V)
(Approx.)
Rear power window switch
Connector Terminal
LH D63 10 Ground 12
RH D43
BCM Rear power window switch Continuity
Connector Terminal Connector Terminal
M70 69 LH D63
10 Existed
RH D43
BCM GroundContinuity
Connector Terminal
M70 69 Not existed
Rear power window switch
GroundContinuity
Connector Terminal
LH D63 11 E x i s t e d
RH D43
Revision: 2010 May2011 QX56

PWC-38
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
>> INSPECTION END
Revision: 2010 May2011 QX56

POWER WINDOW MOTORPWC-39
< DTC/CIRCUIT DIAGNOSIS >
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POWER WINDOW MOTOR
DRIVER SIDE
DRIVER SIDE : Componen t Function CheckINFOID:0000000006217293
1.CHECK POWER WINDOW MOTOR CIRCUIT
Check front power window motor (driver side) operation with power window main switch.
Is the inspection result normal?
YES >> Front power window motor (driver side) is OK.
NO >> Refer to PWC-39, "
DRIVER SIDE : Diagnosis Procedure".
DRIVER SIDE : Diag nosis ProcedureINFOID:0000000006217294
1.CHECK FRONT POWER WINDOW MOTOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window motor (driver side) connector.
3. Turn ignition switch ON.
4. Check voltage between front power window motor (driver side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window motor (driver side). Refer to GW-21, "Removal and Installation".
NO >> GO TO 2.
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Check continuity between power window main s witch harness connector and front power window motor
(driver side) harness connector.
4. Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
PASSENGER SIDE
(+)
(–) Condition Voltage (V)
(Approx.)
Front power window
motor (driver side)
Connector Terminal
D7 3
Ground Power window main switch UP 12
DOWN 0
1 UP 0
DOWN 12
Power window main switch
Front power window motor
(driver side) Continuity
Connector Terminal Connector Terminal
D5 8
D7 3
Existed
11 1
Power window main switch GroundContinuity
Connector Terminal
D5 8
Not existed
11
Revision: 2010 May2011 QX56

PWC-40
< DTC/CIRCUIT DIAGNOSIS >
POWER WINDOW MOTOR
PASSENGER SIDE : Component Function Check
INFOID:0000000006217295
1. CHECK POWER WINDOW MOTOR CIRCUIT
Check front power window motor (passenger side) operat ion with power window main switch or front power
window switch (passenger side).
Is the inspection result normal?
YES >> Front power window motor (passenger side) is OK.
NO >> Refer to PWC-40, "
PASSENGER SIDE : Diagnosis Procedure".
PASSENGER SIDE : Diagnosis ProcedureINFOID:0000000006217296
1.CHECK FRONT POWER WINDOW MOTOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window motor (passenger side) connector.
3. Turn ignition switch ON.
4. Check voltage between front power window motor (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window motor (passenger side). Refer to GW-21, "Removal and Installa-
tion".
NO >> GO TO 2.
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window switch (passenger side) connector.
3. Check continuity between front power window swit ch (passenger side) harness connector and front power
window motor (passenger side) harness connector.
4. Check continuity between front power window switch (passenger side) connector and ground.
Is the inspection result normal?
YES >> Replace front power window switch (passenger side). Refer to PWC-74, "Removal and Installa-
tion".
NO >> Repair or replace harness.
REAR LH
(+)
(–) Condition Voltage (V)
(Approx.)
Front power window motor
(passenger side)
Connector Terminal
D27 3
GroundFront power window switch
(passenger side) UP 12
DOWN 0
1 UP 0
DOWN 12
Front power window switch (passenger side) Front power window motor (passenger side)
Continuity
Connector Terminal Connector Terminal
D25 8
D27 3
Existed
91
Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 8
Not existed
9
Revision: 2010 May2011 QX56

POWER WINDOW MOTORPWC-41
< DTC/CIRCUIT DIAGNOSIS >
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REAR LH : Component Function CheckINFOID:0000000006217297
1.CHECK POWER WINDOW MOTOR CIRCUIT
Check rear power window motor LH operation with power window main switch or rear power window switch
LH.
Is the inspection result normal?
YES >> Rear power window motor LH is OK.
NO >> Refer to PWC-41, "
REAR LH : Diagnosis Procedure".
REAR LH : Diagnosis ProcedureINFOID:0000000006217298
1.CHECK REAR POWER WINDOW MOTOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH connector.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor LH harness connector and ground.
Is the inspection result normal?
YES >> Replace rear power window motor LH. Refer to GW-26, "Removal and Installation".
NO >> GO TO 2.
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH connector.
3. Check continuity between rear power window swit ch LH harness connector and rear power window motor
LH harness connector.
4. Check continuity between rear power window switch LH harness connector and ground.
Is the inspection result normal?
YES >> Replace rear power window switch LH. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
REAR RH
REAR RH : Componen t Function CheckINFOID:0000000006217299
1. CHECK POWER WINDOW MOTOR CIRCUIT
(+)
(–) Condition Voltage (V)
(Approx.)
Rear power window motor LH
Connector Terminal
D67 1
Ground Rear power window switch LH UP 12
DOWN 0
3 UP 0
DOWN 12
Rear power window switch LH Rear power window motor LH
Continuity
Connector Terminal Connector Terminal
D63 8
D67 1
Existed
93
Rear power window switch LH GroundContinuity
Connector Terminal
D63 8
Not existed
9
Revision: 2010 May2011 QX56

PWC-42
< DTC/CIRCUIT DIAGNOSIS >
POWER WINDOW MOTOR
Check rear power window motor RH operation with power window main switch or rear power window switch
RH.
Is the inspection result normal?
YES >> Rear power window motor RH is OK.
NO >> Refer to PWC-42, "
REAR RH : Diagnosis Procedure".
REAR RH : Diagnosis ProcedureINFOID:0000000006217300
1.CHECK REAR POWER WINDOW MOTOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power window motor RH connector.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor RH harness connector and ground.
Is the inspection result normal?
YES >> Replace rear power window motor RH. Refer to GW-26, "Removal and Installation".
NO >> GO TO 2.
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch RH connector.
3. Check continuity between rear power window swit ch RH harness connector and rear power window motor
RH harness connector.
4. Check continuity between rear power window switch RH harness connector and ground.
Is the inspection result normal?
YES >> Replace rear power window switch RH. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
(+)
(–) Condition Voltage (V)
(Approx.)
Rear power window motor RH
Connector Terminal
D47 1
Ground Rear power window switch RH UP 12
DOWN 0
3 UP 0
DOWN 12
Rear power window switch RH
Rear power window motor RH
Continuity
Connector Terminal Connector Terminal
D43 8
D47 1
Existed
93
Rear power window switch RH GroundContinuity
Connector Terminal
D43 8
Not existed
9
Revision: 2010 May2011 QX56

ENCODERPWC-43
< DTC/CIRCUIT DIAGNOSIS >
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ENCODER
DRIVER SIDE
DRIVER SIDE : Componen t Function CheckINFOID:0000000006217301
1.CHECK ENCODER
Check that driver side door glass performs AUTO open/close operation normally by power window main
switch.
Is the inspection result normal?
YES >> Encoder is OK.
NO >> Refer to PWC-43, "
DRIVER SIDE : Diagnosis Procedure".
DRIVER SIDE : Diag nosis ProcedureINFOID:0000000006217302
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between power window main switch harness connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
NO >> GO TO 2.
2.CHECK ENCORDER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector and front power window motor (driver side) connector.
3. Check continuity between power window main s witch harness connector and front power window motor
(driver side) harness connector.
4. Check continuity between power window main switch harness connector and ground.
Signal name(+)
(–)Signal
(Reference value)
Power window main switch
Connector Terminal
Encoder signal 1 D513
Ground Refer to following signal
Encoder signal 2 9
JMKIA5210GB
Power window main switch Front power window motor
(driver side) Continuity
Connector Terminal Connector Terminal
D5 9
D7 6
Existed
13 5
Revision: 2010 May2011 QX56

PWC-44
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK ENCORDER POWER SUPPLY
1. Connect power window main switch connector.
2. Turn ignition switch ON.
3. Check voltage between front power window motor (driver side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK ENCORDER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Check continuity between power window main s witch harness connector and front power window motor
(driver side) harness connector.
4. Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
5.CHECK GROUND CIRCUIT 1
1. Turn ignition switch OFF.
2. Check continuity between front power window motor (driver side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window motor (driver side). Refer to GW-21, "Removal and Installation".
NO >> GO TO 6.
6.CHECK GROUND CIRCUIT 2
1. Disconnect power window main switch connector.
Power window main switch
GroundContinuity
Connector Terminal
D5 9
Not existed
13
(+)
(–)Voltage (V)
(Approx.)
Front power window
motor (driver side)
Connector Terminal D7 2 Ground 12
Power window main switch Front po wer window motor (driver side)
Continuity
Connector Terminal Connector Terminal
D5 15 D7 2 Existed
Power window main switch GroundContinuity
Connector Terminal
D5 15 Not existed
Front power window motor (driver side)
GroundContinuity
Connector Terminal
D7 4 Existed
Revision: 2010 May2011 QX56

ENCODERPWC-45
< DTC/CIRCUIT DIAGNOSIS >
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2. Check continuity between power window main s witch harness connector and front power window motor
(driver side) harness connector.
3. Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
PASSENGER SIDE
PASSENGER SIDE : Comp onent Function CheckINFOID:0000000006217303
1.CHECK ENCODER
Check that passenger side door glass performs AUTO open/close operation normally by power window main
switch or front power window switch (passenger side).
Is the inspection result normal?
YES >> Encoder is OK.
NO >> Refer to PWC-45, "
PASSENGER SIDE : Diagnosis Procedure".
PASSENGER SIDE : Dia gnosis ProcedureINFOID:0000000006217304
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between front power window switch (passenger side) harness connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace front power window sw itch (passenger side). Refer to PWC-74, "Removal and Installa-
tion".
NO >> GO TO 2.
2.CHECK ENCORDER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
Power window main switch Front power window motor (driver side)
Continuity
Connector Terminal Connector Terminal
D52D74Existed
Power window main switch GroundContinuity
Connector Terminal
D5 2 Not existed
Signal name (+)
(–)Signal
(Reference value)
Front power window switch (passenger side)
Connector Terminal
Encoder signal 1 D2512
Ground Refer to following signal
Encoder signal 2 15
JMKIA5210GB
Revision: 2010 May2011 QX56