2007 INFINITI QX56 ignition

POWER WINDOW SYSTEM
GW-35
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
GW
N
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P
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 >
C
D
E
F
G
H
J
K
L
MA
B
GW
N
O
P
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 >
C
D
E
F
G
H
J
K
L
MA
B
GW
N
O
P
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 >
C
D
E
F
G
H
J
K
L
MA
B
GW
N
O
P
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

GW-42
< SERVICE INFORMATION >
POWER WINDOW SYSTEM
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 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 power window and door lock/unlock switch RH.
3. Check continuity between front power window motor RH con-
nector D104 terminal 4 and power window and door lock/unlock
switch RH connector D105 terminal 4.
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.
3.CHECK ENCODER GROUND
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 >> GO TO 5.
NG >> GO TO 4.
4.CHECK ENCODER GROUND CIRCUIT
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 ENCODER SIGNAL4 - Ground : Approx. 10V
WIIA0513E
4 - 4 : Continuity should exist.
LIIA1266E
6 - Ground : Continuity should exist.
LIIA0923E
6 - 3 : Continuity should exist.
LIIA1264E