INFINITI QX56 2011 Factory Service Manual

PWC-46
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
2. Disconnect front power window switch (passenger side) connector and front power window motor (pas-
senger 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) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK ENCORDER POWER SUPPLY
1. Connect front power window switch (passenger side) connector.
2. Turn ignition switch ON.
3. Check voltage between front power window motor (passenger 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 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) harness 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.
5.CHECK GROUND CIRCUIT 1
1. Turn ignition switch OFF.
Front power window switch (passenger side) Front power window motor (passenger side) Continuity
Connector Terminal Connector Terminal
D25 12
D27 5
Existed
15 6
Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 12
Not existed
15
(+)
(–)Voltage (V)
(Approx.)
Front power window motor (passenger side)
Connector Terminal D27 2 Ground 12
Front power window switch (passenger side) Front power window motor (passenger side) Continuity
Connector Terminal Connector Terminal
D25 4 D27 2 Existed
Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 4 Not existed
Revision: 2010 May2011 QX56

ENCODERPWC-47
< DTC/CIRCUIT DIAGNOSIS >
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2. Check continuity 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 Installation".
NO >> GO TO 6.
6.CHECK GROUND CIRCUIT 2
1. Disconnect front power window switch (passenger side) connector.
2. Check continuity between front power window swit ch (passenger side) harness connector and front power
window motor (passenger side) harness connector.
3. Check continuity between front power window switch (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window sw itch (passenger side). Refer to PWC-74, "Removal and Installa-
tion".
NO >> Repair or replace harness.
REAR LH
REAR LH : Component Function CheckINFOID:0000000006217305
1.CHECK ENCODER OPERATION
Check that rear door LH glass performs AUTO open/cl ose operation normally by power window main switch or
rear power window switch LH.
Is the inspection result normal?
YES >> Encoder operation is OK.
NO >> Refer to PWC-47, "
REAR LH : Diagnosis Procedure".
REAR LH : Diagnosis ProcedureINFOID:0000000006217306
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between rear power window switch LH harness connector and ground with oscilloscope.
Front power window motor (passenger side)
GroundContinuity
Connector Terminal
D27 4 Existed
Front power window switch (passenger side) Front power window motor (passenger side) Continuity
Connector Terminal Connector Terminal
D253D274Existed
Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 3 Not existed
Signal name (+)
(–)Signal
(Reference value)
Rear power window switch LH
Connector Terminal
Encoder signal 1 D6312
Ground Refer to following signal
Encoder signal 2 15
Revision: 2010 May2011 QX56

PWC-48
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
Is the inspection result normal?
YES >> Replace rear power window switch LH. Refer to PWC-74, "Removal and Installation".
NO >> GO TO 2.
2.CHECK ENCORDER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH connector and rear power window motor LH connector.
3. Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
4. Check continuity rear power window switch LH harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK ENCORDER POWER SUPPLY
1. Connect rear power window switch LH connector.
2. Turn ignition switch ON.
3. Check voltage between rear power window motor LH 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 rear power window switch LH connector.
3. Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
JMKIA5210GB
Rear power window switch LH Rear power window motor LH Continuity
Connector Terminal Connector Terminal
D63 12
D67 5
Existed
15 6
Rear power window switch LH GroundContinuity
Connector Terminal
D63 12
Not existed
15
(+)
(–)Voltage (V)
(Approx.)
Rear power window motor LH
Connector Terminal D67 2 Ground 12
Revision: 2010 May2011 QX56

ENCODERPWC-49
< DTC/CIRCUIT DIAGNOSIS >
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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.
5.CHECK GROUND CIRCUIT 1
1. Turn ignition switch OFF.
2. Check continuity 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 6.
6.CHECK GROUND CIRCUIT 2
1. Disconnect rear power window switch LH harness connector.
2. Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
3. 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:0000000006217307
1.CHECK ENCODER OPERATION
Check that rear door RH glass per forms AUTO open/close operation normally by power window main switch
or rear power window switch RH.
Is the inspection result normal?
YES >> Encoder operation is OK.
NO >> Refer to PWC-50, "
REAR RH : Diagnosis Procedure".
Rear power window switch LH Rear power window motor LH
Continuity
Connector Terminal Connector Terminal
D634D672Existed
Rear power window switch LH GroundContinuity
Connector Terminal
D63 4 Not existed
Rear power window motor LH GroundContinuity
Connector Terminal
D67 4 Existed
Rear power window switch LH Rear power window motor LH Continuity
Connector Terminal Connector Terminal
D633D674Existed
Rear power window switch LH GroundContinuity
Connector Terminal
D63 3 Not existed
Revision: 2010 May2011 QX56

PWC-50
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
REAR RH : Diagnosis Procedure
INFOID:0000000006217308
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between rear power window switch RH harness connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace rear power window switch RH. Refer to PWC-74, "Removal and Installation".
NO >> GO TO 2.
2.CHECK ENCODER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch RH connec tor and rear power window motor 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 rear power window switch RH harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK ENCODER POWER SUPPLY
1. Connect rear power window switch RH connector.
2. Turn ignition switch ON.
3. Check voltage between rear power window motor RH harness connector and ground.
Signal name (+)
(–)Signal
(Reference value)
Rear power window switch RH
Connector Terminal
Encoder signal 1 D4312
Ground Refer to following signal
Encoder signal 2 15
JMKIA5210GB
Rear power window switch RH Rear power window motor RH
Continuity
Connector Terminal Connector Terminal
D43 12
D47 5
Existed
15 6
Rear power window switch RH GroundContinuity
Connector Terminal
D43 12
Not existed
15
Revision: 2010 May2011 QX56

ENCODERPWC-51
< DTC/CIRCUIT DIAGNOSIS >
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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 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.
5.CHECK GROUND CIRCUIT 1
1. Turn ignition switch OFF.
2. Check continuity 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 6.
6.CHECK GROUND CIRCUIT 2
1. Disconnect rear power window switch RH harness connector.
2. Check continuity between rear power window s witch RH harness connector and rear power window motor
RH harness connector.
3. 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".
(+)
(–)Voltage (V)
(Approx.)
Rear power window motor RH
Connector Terminal D47 2 Ground 12
Rear power window switch RH Rear power window motor RH
Continuity
Connector Terminal Connector Terminal
D434D472Existed
Rear power window switch RH GroundContinuity
Connector Terminal
D43 4 Not existed
Rear power window motor RH GroundContinuity
Connector Terminal
D47 4 Existed
Rear power window switch RH Rear power window motor RH
Continuity
Connector Terminal Connector Terminal
D433D474Existed
Rear power window switch RH GroundContinuity
Connector Terminal
D43 3 Not existed
Revision: 2010 May2011 QX56

PWC-52
< DTC/CIRCUIT DIAGNOSIS >
ENCODER
NO >> Repair or replace harness.
Revision: 2010 May2011 QX56

DOOR KEY CYLINDER SWITCHPWC-53
< DTC/CIRCUIT DIAGNOSIS >
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DOOR KEY CYLINDER SWITCH
Component Function CheckINFOID:0000000006217309
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check (“KEY CYL LK-SW”, “KEY CYL UN-SW”) in “D ATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to DLK-39, "
DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
Is the inspection result normal?
YES >> Door key cylinder switch is OK.
NO >> Refer to PWC-53, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006217310
1.CHECK DOOR KEY CYLINDER SWITCH SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly (driver side) (door key cylinder switch) connect.
3. Turn ignition switch ON.
4. Check voltage between front door lock assembly (dri ver side) (door key cylinder switch) harness connec-
tor and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK DOOR KEY CYLINDER SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Check continuity between power window main switch harness connector and front door lock assembly (driver side) (door key cylinder switch) harness connector.
4. Check continuity between power window main switch harness connector and ground.
Monitor item Condition
KEY CYL LK-SW Lock : ON
Neutral / Unlock : OFF
KEY CYL UN-SW Unlock : ON
Neutral / Lock : OFF
(+)
(–)Voltage (V)
(Approx.)
Front door lock assembly (driver side) (door key cylinder
switch)
Connector Terminal
D9 5
Ground 5
6
Power window main switch Front door lock assembly
(driver side) (door key cyl-
inder switch) Continuity
Connector Terminal Connector Terminal
D5 4
D9 6
Existed
65
Revision: 2010 May2011 QX56

PWC-54
< DTC/CIRCUIT DIAGNOSIS >
DOOR KEY CYLINDER SWITCH
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between front door lock assembly (d river side) (door key cylinder switch) harness connector
and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK DOOR KEY CYLINDER SWITCH
Check front door lock assembly (driver side) (door key cylinder switch).
Refer to PWC-54, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace front door lock assembly (driver side) (door key cylinder switch). Refer to DLK-240,
"DOOR LOCK : Removal and Installation".
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006217311
COMPONENT INSPECTION
1.CHECK DOOR DOOR KEY CYLINDER SWITCH
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly (drive r side) (door key cylinder switch) connector.
3. Check front door lock assembly (driver side) (door key cylinder switch).
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace front door lock assembly (driver side) (door key cylinder switch). Refer to DLK-240,
"DOOR LOCK : Removal and Installation".
Power window main switch
GroundContinuity
Connector Terminal
D5 4
Not existed
6
Front door lock assembly (driver side) (door key cylinder switch)
GroundContinuity
Connector Terminal
D9 4 Existed
Front door lock assembly (driver side) (door key cylinder switch)
Key position Continuity
Te r m i n a l
5 4Unlock Existed
Neutral / Lock Not existed
6 Lock Existed
Neutral / Unlock Not existed
Revision: 2010 May2011 QX56

POWER WINDOW SERIAL LINKPWC-55
< DTC/CIRCUIT DIAGNOSIS >
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POWER WINDOW SERIAL LINK
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Component Function CheckINFOID:0000000006217312
1.CHECK POWER WINDOW SWITCH OUTPUT SIGNAL
With CONSULT-III
Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “D ATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to DLK-39, "
DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
Is the inspection result normal?
YES >> Power window serial link is OK.
NO >> Refer to PWC-55, "
POWER WINDOW MAIN SWITCH : Diagnosis Procedure".
POWER WINDOW MAIN SWITCH : Diagnosis ProcedureINFOID:0000000006217313
1.CHECK POWER WINDOW SWITCH INPUT 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 >> GO TO 4.
NO >> GO TO 2.
2.CHECK POWER WINDOW SERIAL LINK SIGNAL
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Turn ignition switch ON.
4. Check voltage 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".
Monitor item Condition
CDL LOCK SW LOCK : ON
UNLOCK : OFF
CDL UNLOCK SW LOCK : OFF
UNLOCK : ON
(+) (–)Signal
(Reference value)
power window main switch
Connector Terminal
D5 14 Ground
JPMIA0013GB
(+) (–)Voltage (V)
(Approx.)
Power window main switch
Connector Terminal D5 14 Ground 12
Revision: 2010 May2011 QX56