INFINITI QX56 2007 Factory Service Manual

GW-32
< SERVICE INFORMATION >
POWER WINDOW SYSTEM
WORK SUPPORT
DATA MONITOR
Trouble Diagnosis Symptom ChartINFOID:0000000003533036
• Check that other systems using the signal of the following systems operate normally.
Te s t I t e m D e s c r i p t i o n
RETAINED PWRThis test is able to supply RAP signal (power) from BCM (body control module) to power window
system and power sunroof system (if equipped). Those systems can be operated when turning on
“RETAINED PWR” on CONSULT-II screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-II can be operated with ignition switch in OFF position. “RETAINED
P W R ” s h o u l d b e t u r n e d “ O N ” o r “ O F F ” o n C O N S U LT- I I s c r e e n w h e n i g n i t i o n s w i t c h i s O N . T h e n t u r n
ignition switch OFF to check retained power operation. CONSULT-II might be stuck if “RETAINED
PWR” is turned “ON” or “OFF” on CONSULT-II screen when ignition switch is OFF.
Work item Description
RETAINED PWRRAP signal’s power supply period can be changed by mode setting. Selects RAP signal’s power
supply period between three steps
• MODE1 (45 sec.) / MODE2 (OFF) / MODE 3 (2 min.).
Work item Description
IGN ON SW Indicates (ON/OFF) condition of ignition switch
DOOR SW-DR Indicates (ON/OFF) condition of front door switch driver side
DOOR SW-AS Indicates (ON/OFF) condition of front door switch passenger side
Symptom Repair order Refer to page
None of the power windows can be operated using any switch1. BCM power supply and ground circuit checkBCS-15
2. Main power window and door lock/unlock
power supply and ground circuit checkGW-34
3. Power window serial link check front LH and
RHGW-46
Front power window LH alone does not operate1. Main power window and door lock/unlock
power supply and ground circuit checkGW-342. Front power window motor LH circuit checkGW-36
3. Replace main power window and door lock/
unlock switchEI-31
Front power window RH alone does not operate1. Power window and door lock/unlock switch
RH power supply and ground circuit checkGW-352. Power window serial link check front LH and
RHGW-46
3. Front power window motor RH circuit checkGW-37
4. Replace BCMBCS-24
Rear power window LH alone does not operate1. Rear power window control unit LH or RH
power supply and ground circuit checkGW-48
2. Rear power window switch LH or RH power
supply and ground circuit checkGW-49
3. Rear power window motor LH circuit checkGW-50
4. Power window serial link check rear LH and
RHGW-54
5. Replace BCMBCS-24

POWER WINDOW SYSTEM
GW-33
< SERVICE INFORMATION >
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Rear power window RH alone does not operate1. Rear power window control unit LH or RH
power supply and ground circuit checkGW-48
2. Rear power window switch LH or RH power
supply and ground circuit checkGW-49
3. Rear power window motor RH circuit checkGW-50
4. Power window serial link check rear LH and
RHGW-54
5. Replace BCMBCS-24
Rear power vent windows do not operate 1. Rear power vent window switch circuit checkGW-55
Rear power vent window LH alone does not operate1. Rear power vent window motor LH circuit
checkGW-55
Rear power vent window RH alone does not operate1. Rear power vent window motor RH circuit
checkGW-56
Rear power vent windows do not open 1. Rear power vent window relay (OPEN) checkGW-56
Rear power vent windows do not close1. Rear power vent window relay (CLOSE)
checkGW-57
Anti-pinch system does not operate normally (Front LH)1. Door window sliding part malfunction
• A foreign material adheres to window glass or
glass run rubber.
• Glass run rubber wear or deformation.
• Sash is tilted too much, or not enough.—
2. Limit switch adjustingGW-59
3. Limit switch circuit check front LHGW-37
4. Encoder circuit check front LHGW-40
Anti-pinch system does not operate normally (Front RH)1. Door window sliding part malfunction
• A foreign material adheres to window glass or
glass run rubber.
• Glass run rubber wear or deformation.
• Sash is tilted too much, or not enough.—
2. Limit switch adjustingGW-59
3. Limit switch circuit check front RHGW-38
4. Encoder circuit check front RHGW-41
Anti-pinch system does not operate normally (Rear LH)1. Door window sliding part malfunction
• A foreign material adheres to window glass or
glass run rubber.
• Glass run rubber wear or deformation.
• Sash is tilted too much, or not enough.—
2. Limit switch adjustingGW-62
3. Limit switch circuit check rear LH or RHGW-51
4. Encoder circuit check rear LH or RHGW-53
Anti-pinch system does not operate normally (Rear RH)1. Door window sliding part malfunction
• A foreign material adheres to window glass or
glass run rubber.
• Glass run rubber wear or deformation.
• Sash is tilted too much, or not enough.—
2. Limit switch adjustingGW-62
3. Limit switch circuit check rear LH or RHGW-51
4. Encoder circuit check rear LH or RHGW-53
Power window retained power operation does not operate properly1. Check the retained power operation mode
setting.GW-312. Door switch checkGW-43
3. Replace BCM.BCS-24
Symptom Repair order Refer to page

GW-34
< SERVICE INFORMATION >
POWER WINDOW SYSTEM
BCM Power Supply and Ground Circuit Inspection
INFOID:0000000003533037
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection".
Main Power Window and Door Lock/Unlock Switch Power Supply and Ground Circuit
Inspection
INFOID:0000000003533038
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/
unlock switch connector D7 terminal 10, D8 terminal 19 and
ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch.
3. Check continuity between main power window and door lock/
unlock switch connector D8 terminal 17 and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Repair or replace harness.
3.CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM and main power window and door lock/unlock
switch.
3. Check continuity between BCM connector and main power win-
dow and door lock/unlock switch connectors.
4. Check continuity between BCM and ground.
Power windows do not operate by front door lock assembly LH (key
cylinder switch)1. Front door lock assembly LH (key cylinder
switch) checkGW-44
2. Replace main power window and door lock/
unlock switchEI-31
Power window lock switch does not function 1. Power window lock switch circuit checkGW-46
Symptom Repair order Refer to page
10 - Ground : Battery voltage
19 - Ground : Battery voltage
LIIA2297E
17 - Ground : Continuity should exist.
LIIA0392E
Connector
Te r m i n a lConnector
Terminal Continuity
AB
BCM: M2068Main power window and
door lock/unlock switch:
D710 Yes
69C
19 Yes Main power window and
door lock/unlock switch:
D8
LIIA2215E

POWER WINDOW SYSTEM
GW-35
< SERVICE INFORMATION >
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OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M20 terminals 68, 69
and ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace BCM. Refer to BCS-24, "
BCM".
Power Window and Door Lock/Unlock Switch RH Power Supply and Ground Circuit In-
spection
INFOID:0000000003533039
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between power window and door lock/unlock
switch RH connector D105 terminal 10 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window and door lock/unlock switch RH.
3. Check continuity between power window and door lock/unlock
switch RH connector D105 terminal 11 and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Repair or replace harness.
3.CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH POWER SUPPLY CIRCUIT
Connector
Te r m i n a l
GroundContinuity
A
BCM: M2068 No
69 No
68 - Ground : Battery voltage
69 - Ground : Battery voltage
LIIA0917E
10 - Ground : Battery voltage
LIIA1257E
11 - Ground : Continuity should exist.
LIIA1258E

GW-36
< SERVICE INFORMATION >
POWER WINDOW SYSTEM
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between BCM connector M20 (A) terminal 69
and power window and door lock/unlock switch RH connector
D105 (B) terminal 10.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M20 terminal 69 and
ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace BCM. Refer to BCS-24, "
BCM" .
Front Power Window Motor LH Circuit InspectionINFOID:0000000003533040
1.CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/
unlock switch connector D7 terminals 8, 11 and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace main power window and door lock/unlock switch. Refer to EI-31, "
Removal and Installa-
tion".
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and
front power window motor LH.
3. Check continuity between main power window and door lock/
unlock switch connector D7 terminals 8, 11 and front power win-
dow motor LH connector D9 terminals 1, 2.
OK or NG
OK >> Replace front power window motor LH. Refer to GW-59.
NG >> Repair or replace harness.69 - 10 : Continuity should exist.
LIIA2298E
69 - Ground : Battery voltage
WIIA0508E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D78
GroundUP Battery voltage
DOWN 0
11UP 0
DOWN Battery voltage
LIIA0317E
8 - 2 : Continuity should exist.
11 - 1 : Continuity should exist.
LIIA1260E

POWER WINDOW SYSTEM
GW-37
< SERVICE INFORMATION >
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Front Power Window Motor RH Circuit InspectionINFOID:0000000003533041
1.CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH OUTPUT SIGNAL
1. Connect power window and door lock/unlock switch RH.
2. Turn ignition switch ON.
3. Check voltage between power window and door lock/unlock
switch RH connector D105 terminals 8, 9 and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace power window and door lock/unlock switch RH. Refer to EI-31, "
Removal and Installa-
tion".
2.CHECK FRONT POWER WINDOW MOTOR RH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor RH and power window
and door lock/unlock switch RH.
3. Check continuity between power window and door lock/unlock
switch RH connector D105 terminals 8, 9 and front power win-
dow motor RH connector D104 terminals 1, 2.
OK or NG
OK >> Replace front power window motor RH. Refer to GW-59
.
NG >> Repair or replace harness.
Limit Switch Circuit Inspection Front LHINFOID:0000000003533042
1.CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH LIMIT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/
unlock switch connector D7 termimal 9 and ground.
OK or NG
OK >> Limit switch circuit is OK.
NG >> GO TO 2.
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D1059
GroundUP 0
DOWN Battery voltage
8UP Battery voltage
DOWN 0
LIIA1261E
8 - 2 : Continuity should exist.
9 - 1 : Continuity should exist.
LIIA1262E
ConnectorTe r m i n a l
Condition Voltage (V)
(Approx.)
(+) (-)
D7 9 GroundFront power window LH is
between fully-open and just
before fully-closed position
(ON)0
Front power window LH is
between just before fully-
closed position and fully-
closed position (OFF)5
LIIA0339E

GW-38
< SERVICE INFORMATION >
POWER WINDOW SYSTEM
2.CHECK FRONT POWER WINDOW MOTOR LH LIMIT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window motor LH.
3. Turn ignition switch ON.
4. Check voltage between front power window motor LH connector
D9 terminal 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3.CHECK LIMIT SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front power window motor LH connec-
tor D9 terminal 6 and ground.
OK or NG
OK >> Replace front power window motor LH. Refer to GW-59.
NG >> GO TO 4.
4.CHECK HARNESS CONTINUITY
1. Disconnect main power window and door lock/unlock switch.
2. Check continuity between front power window motor LH connec-
tor D9 terminal 6 and main power window and door lock/unlock
switch connector D7 terminal 2.
OK or NG
OK >> Replace main power window and door lock/unlock
switch. Refer to EI-31, "
Removal and Installation".
NG >> Repair or replace harness.
5.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch.
3. Check continuity between front power window motor LH connec-
tor D9 terminal 5 and main power window and door lock/unlock
switch connector D7 terminal 9.
OK or NG
OK >> Replace main power window and door lock/unlock
switch. Refer to EI-31, "
Removal and Installation".
NG >> Repair or replace harness.
Limit Switch Circuit Inspection Front RHINFOID:0000000003533043
1.CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH LIMIT SIGNAL 5 - Ground : Approx. 5V
LIIA0922E
6 - Ground : Continuity should exist.
LIIA0923E
6 - 2 : Continuity should exist.
LIIA0924E
5 - 9 : Continuity should exist.
LIIA0925E

POWER WINDOW SYSTEM
GW-39
< SERVICE INFORMATION >
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1. Turn ignition switch ON.
2. Check voltage between power window motor RH connector
D105 terminal 15 and ground.
OK or NG
OK >> Limit switch circuit is OK.
NG >> GO TO 2.
2.CHECK FRONT POWER WINDOW MOTOR RH LIMIT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window motor RH.
3. Turn ignition switch ON.
4. Check voltage between front power window motor RH connector
D104 terminal 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3.CHECK LIMIT SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front power window motor RH con-
nector D104 terminal 6 and ground.
OK or NG
OK >> Replace front power window motor RH. Refer to GW-59.
NG >> GO TO 4.
4.CHECK HARNESS CONTINUITY
1. Disconnect power window and door lock/unlock switch RH.
2. Check continuity between front power window motor RH con-
nector D104 terminal 6 and power window and door lock/unlock
switch RH connector D105 terminal 3.
OK or NG
OK >> Replace power window and door lock/unlock switch RH.
Refer to EI-31, "
Removal and Installation".
NG >> Repair or replace harness.
5.CHECK HARNESS CONTINUITY
ConnectorTe r m i n a l s
Condition Voltage (V)
(Approx.)
(+) (-)
D105 15 GroundFront power window RH is
between fully-open and just
before fully-closed position
(ON)0
Front power window RH is
between just before fully-
closed position and fully-
closed position (OFF)5
LIIA1263E
5 - Ground : Approx. 5V
LIIA0922E
6 - Ground : Continuity should exist.
LIIA0923E
6 - 3 : Continuity should exist.
LIIA1264E

GW-40
< SERVICE INFORMATION >
POWER WINDOW SYSTEM
1. Turn ignition switch OFF.
2. Disconnect power window and door lock/unlock switch RH.
3. Check continuity between power window and door lock/unlock
switch RH connector D105 terminal 15 and front power window
motor RH connector D104 terminal 5.
OK or NG
OK >> Replace power window and door lock/unlock switch RH.
Refer to EI-31, "
Removal and Installation".
NG >> Repair or replace harness.
Encoder Circuit Inspection Front LHINFOID:0000000003533044
1.CHECK FRONT POWER WINDOW MOTOR LH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect front power window motor LH.
3. Turn ignition switch ON.
4. Check voltage between front power window motor LH connector
D9 terminal 4 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch.
3. Check continuity between front power window motor LH connec-
tor D9 terminal 4 and main power window and door lock/unlock
switch connector D7 terminal 15.
OK or NG
OK >> Replace main power window and door lock/unlock
switch. Refer to EI-31, "
Removal and Installation".
NG >> Repair or replace harness.
3.CHECK ENCODER GROUND
1. Turn ignition switch OFF.
2. Check continuity between front power window motor LH connec-
tor D9 terminal 6 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.CHECK ENCODER GROUND CIRCUIT15 - 5 : Continuity should exist.
LIIA1265E
4 - Ground : Approx. 10V
WIIA0513E
4 - 15 : Continuity should exist.
LIIA0936E
6 - Ground : Continuity should exist.
LIIA0923E

POWER WINDOW SYSTEM
GW-41
< SERVICE INFORMATION >
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1. Disconnect main power window and door lock/unlock switch.
2. Check continuity between front power window motor LH connec-
tor D9 terminal 6 and main power window and door lock/unlock
switch connector D7 terminal 2.
OK or NG
OK >> Replace main power window and door lock/unlock
switch. Refer to EI-31, "
Removal and Installation" .
NG >> Repair or replace harness.
5.CHECK ENCODER SIGNAL
1. Connect front power window motor LH.
2. Turn ignition switch ON.
3. Check the signal between main power window and door lock/
unlock switch connector and ground with oscilloscope.
OK or NG
OK >> Replace main power window and door lock/unlock switch. Refer to EI-31, "Removal and Installa-
tion".
NG >> GO TO 6.
6.CHECK ENCODER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor LH and main power win-
dow and door lock/unlock switch.
3. Check continuity between front power window motor LH connec-
tor D9 (B) terminal 3 and main power window and door lock/
unlock switch connector D7 (A) terminal 13.
OK or NG
OK >> Replace front power window motor LH. Refer to GW-59.
NG >> Repair or replace harness.
Encoder Circuit Inspection Front RHINFOID:0000000003533045
1.CHECK POWER WINDOW MOTOR RH POWER SUPPLY6 - 2 : Continuity should exist.
LIIA0924E
Connec-
torTe r m i n a l s
Condition Signal
(+) (-)
D7 13 Ground Opening
LIIA0364E
OCC3383D
3 - 13 : Continuity should exist.
LIIA2210E