2009 INFINITI QX56 window

PWC-16
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear power window switch LH or RHconnector D203 (LH), D303 (RH) terminals 1, 7 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK REAR POWER WINDOW SWITCH
Check rear power window switch.
Refer to PWC-16, "REAR POWER WINDOW SWITCH : Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace rear power window switch. Refer to PWC-119, "Removal and Installation"
.
REAR POWER WINDOW SWITCH : Component InspectionINFOID:0000000003775975
COMPONENT INSPECTION
1. CHECK REAR POWER WINDOW SWITCH
Check rear power window switch.
Is the inspection result normal?
YES >> Rear power window switch is OK.
NO >> Replace rear power window switch. Refer to PWC-119, "Removal and Installation"
.
1 - Ground : Continuity should exist.
7 - Ground : Continuity should exist.
LIIA2044E
Terminal Power window switch condition Continuity
25 UP
Ye s
14
14
NEUTRAL
15
24 DOWN
15
ALKIA0289ZZ
Revision: December 20092009 QX56

POWER WINDOW MOTORPWC-17
< COMPONENT DIAGNOSIS >
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POWER WINDOW MOTOR
DRIVER SIDE
DRIVER SIDE : DescriptionINFOID:0000000003775976
Door glass moves UP/DOWN by receiving the signal from power window main switch.
DRIVER SIDE : Componen t Function CheckINFOID:0000000003775977
1. CHECK POWER WINDOW MOTOR CIRCUIT
Does front power window motor LH operate with operat ing main power window and door lock/unlock switch?
Is the inspection result normal?
YES >> Front power window motor LH is OK.
NO >> Refer to PWC-17, "DRIVER SIDE : Diagnosis Procedure"
.
DRIVER SIDE : Diag nosis ProcedureINFOID:0000000003775978
Front Power Window Motor LH Circuit Check
1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL
1. Disconnect front power window motor LH.
2. Turn ignition switch ON.
3. Check voltage between front power window motor LH connector and ground.
Is the measurement value within the specification?
YES >> GO TO 2
NO >> Replace main power window and door lock/unlock switch. Refer to PWC-117, "Removal and
Installation".
2. CHECK HARNESS CONTINUITY
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 and front power window motor connec-
tor LH.
4. Check continuity between main power window and door lock/unlock switch connector and ground.
Te r m i n a l Main power win-
dow and door lock/ unlock switch con- dition Voltage (V)
(Approx.)
(+)
(–)
Power window
motor LH con-
nector Te r m i n a l
D9 2
Ground UP Battery voltage
DOWN 0
1 UP 0
DOWN Battery voltage
ALKIA1302ZZ
Main power window
and door lock/unlock
switch connector Te r m i n a l
Front power win-
dow motor LH con-
nector Terminal Continuity
D7 (A) 8
D9 (B) 2
Ye s
11 1
ALKIA1019ZZ
Revision: December 20092009 QX56

PWC-18
< COMPONENT DIAGNOSIS >
POWER WINDOW MOTOR
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK POWER WINDOW MOTOR
Check front power window motor LH.
Refer to PWC-18, "DRIVER SIDE : Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace power window motor LH. Refer to GW-15, "Removal and Installation"
.
DRIVER SIDE : Component InspectionINFOID:0000000003775979
COMPONENT INSPECTION
1. CHECK FRONT POWER WINDOW MOTOR LH
Does motor operate by connecting the battery voltage directly to power window motor?
Is the inspection result normal?
YES >> Front power window motor LH is OK.
NO >> Replace front power window motor LH. Refer to GW-15, "Removal and Installation"
.
PASSENGER SIDE
PASSENGER SIDE : DescriptionINFOID:0000000003775980
Door glass moves UP/DOWN by receiving the signal from main power window and door lock/unlock switch or
power window and door lock/unlock switch RH.
PASSENGER SIDE : Component Function CheckINFOID:0000000003775981
1. CHECK POWER WINDOW MOTOR CIRCUIT
Does power window motor operate with operating main power window and door lock/unlock switch or power
window and door lock/unlock switch RH?
Is the inspection result normal?
YES >> Front power window motor RH is OK.
NO >> Refer to PWC-18, "PASSENGER SIDE : Diagnosis Procedure"
.
PASSENGER SIDE : Diagnosis ProcedureINFOID:0000000003775982
Front Power Window Mo tor RH Circuit Check
1. CHECK FRONT POWER WINDOW SWITCH RH OUTPUT SIGNAL
Main power window and door
lock/unlock switch connector Te r m i n a l
GroundContinuity
D7 (A) 8
No
11
Te r m i n a l Motor condition
(+) (–)
12 DOWN
21 UP
Revision: December 20092009 QX56

POWER WINDOW MOTORPWC-19
< COMPONENT DIAGNOSIS >
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1. Disconnect front power window motor RH.
2. Turn ignition switch ON.
3. Check voltage between front power window motor RH connector and ground.
Is the measurement value within the specification?
YES >> GO TO 2
NO >> Replace power window and door lock/unlock switch RH. Refer to PWC-118, "Removal and Instal-
lation".
2. CHECK HARNESS CONTINUITY
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 and front power window motor RH connec-
tor.
4. Check continuity between power window and door lock/unlock switch RH connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK FRONT POWER WINDOW MOTOR RH
Check front power window motor RH.
Refer to PWC-19, "PASSENGER SIDE : Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace front power window motor RH. Refer to GW-15, "Removal and Installation"
.
PASSENGER SIDE : Component InspectionINFOID:0000000003775983
COMPONENT INSPECTION
1. CHECK FRONT POWER WINDOW MOTOR RH
Does motor operate by connecting the battery voltage directly to front power window motor RH?
Te r m i n a l Front power
window motor RH condition Voltage (V)
(Approx.)
(+)
(–)
Front power window
motor RH connector Te r m i n a l
D104 2
Ground UP Battery voltage
DOWN 0
1 UP 0
DOWN Battery voltage
ALKIA1302ZZ
Power window and door lock/unlock
switch RH connector Te r m i n a l
Front power window
motor RH connector
Terminal Continuity
D105 (A) 8
D104 (B) 2
Ye s
91
Power window and door
lock/unlock switch RH con- nector Terminal
Ground Continuity
D105 (A) 8
No
9
ALKIA1020ZZ
Revision: December 20092009 QX56

PWC-20
< COMPONENT DIAGNOSIS >
POWER WINDOW MOTOR
Is the inspection result normal?
YES >> Front power window motor RH is OK.
NO >> Replace front power window motor RH. Refer to GW-15, "Removal and Installation"
.
REAR LH
REAR LH : DescriptionINFOID:0000000003775984
Door glass moves UP/DOWN by receiving the signal from power window main switch or rear power window
switch LH.
REAR LH : Component Function CheckINFOID:0000000003775985
1. CHECK REAR POWER WINDOW MOTOR LH CIRCUIT
Does rear power window motor LH operate with main power window and door lock/unlock switch or rear
power window switch LH?
Is the inspection result normal?
YES >> Rear power window motor LH is OK.
NO >> Refer to PWC-20, "REAR LH : Diagnosis Procedure"
.
REAR LH : Diagnosis ProcedureINFOID:0000000003775986
Power Window Motor Circuit Check
1. CHECK REAR POWER WINDOW SWITCH LH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between rear power window switch LH connector D203 terminals 4, 5 and ground.
Is the inspection result normal?
YES >> Replace rear power window switch LH. Refer to PWC-119, "Removal and Installation".
NO >> GO TO 2
2. CHECK REAR POWER WINDOW SWITCH LH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH and rear power win- dow control unit LH.
3. Check continuity between rear power window switch LH connec- tor D203 terminals 4, 5 and rear power window control unit LH
connector D209 terminals 9, 10.
Is the inspection result normal?
Te r m i n a l Motor condition
(+) (–)
12 DOWN
21 UP
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D203 4
Ground Closing 0
Opening Battery voltage
5 Closing Battery voltage
Opening 0
LIIA2365E
4 - 9 : Continuity should exist.
5 - 10 : Continuity should exist.
LIIA1379E
Revision: December 20092009 QX56

POWER WINDOW MOTORPWC-21
< COMPONENT DIAGNOSIS >
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YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK REAR POWER WINDOW MOTOR LH
Check rear power window motor LH.
Refer to PWC-21, "REAR LH : Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace rear power window motor LH. Refer to GW-15, "Removal and Installation"
.
REAR LH : Component InspectionINFOID:0000000003775987
COMPONENT INSPECTION
1. CHECK REAR POWER WINDOW MOTOR LH
Does motor operate by connecting the battery volt age directly to rear power window motor LH?
Is the inspection result normal?
YES >> Rear power window motor LH is OK.
NO >> Replace rear power window motor LH. Refer to GW-19, "Removal and Installation"
.
REAR RH
REAR RH : DescriptionINFOID:0000000003775988
Door glass moves UP/DOWN by receiving the signal from main power window and door lock/unlock switch or
rear power window switch RH.
REAR RH : Component Function CheckINFOID:0000000003775989
1. CHECK REAR POWER WINDOW MOTOR RH CIRCUIT
Does rear power window motor RH operate with operat ing main power window and door lock/unlock switch or
rear power window switch RH?
Is the inspection result normal?
YES >> Rear power window motor RH is OK.
NO >> Refer to PWC-21, "REAR RH : Diagnosis Procedure"
.
REAR RH : Diagnosis ProcedureINFOID:0000000003775990
Rear Power Window Mo tor RH Circuit Check
1. CHECK REAR POWER WINDOW SWITCH RH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between rear power window switch RH connector D303 terminals 4, 5 and ground.
Te r m i n a l Motor condition
(+) (–)
21 DOWN
12 UP
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D303 4
Ground Closing 0
Opening Battery voltage
5 Closing Battery voltage
Opening 0
LIIA2365E
Revision: December 20092009 QX56

PWC-22
< COMPONENT DIAGNOSIS >
POWER WINDOW MOTOR
Is the inspection result normal?
YES >> Replace rear power window switch RH. Refer to PWC-119, "Removal and Installation".
NO >> GO TO 2
2. CHECK REAR POWER WINDOW SWITCH RH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch RH and rear power win- dow control unit RH.
3. Check continuity between rear power window switch RH con- nector D303 terminals 4, 5 and rear power window control unit
RH connector D309 terminals 9, 10.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK REAR POWER WINDOW MOTOR RH
Check rear power window motor RH.
Refer to PWC-22, "REAR RH : Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace rear power window motor RH. Refer to GW-19, "Removal and Installation"
.
REAR RH : Component InspectionINFOID:0000000003775991
COMPONENT INSPECTION
1. CHECK REAR POWER WINDOW MOTOR RH
Does motor operate by connecting the battery voltage directly to rear power window motor RH?
Is the inspection result normal?
YES >> Rear power window motor RH is OK.
NO >> Replace rear power window motor RH. Refer to GW-19, "Removal and Installation"
.
4 - 9 : Continuity should exist.
5 - 10 : Continuity should exist.
LIIA1379E
Te r m i n a l
Motor condition
(+) (–)
21 DOWN
12 UP
Revision: December 20092009 QX56

ENCODERPWC-23
< COMPONENT DIAGNOSIS >
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ENCODER
DRIVER SIDE
DRIVER SIDE : DescriptionINFOID:0000000003775992
Detects condition of the front power window motor LH operation and transmits to main power window and door
lock/unlock switch as pulse signal.
DRIVER SIDE : Componen t Function CheckINFOID:0000000003775993
1. CHECK ENCODER OPERATION
Does front door glass LH perform AUTO open/close operation normally when operating main power window
and door lock/unlock switch?
Is the inspection result normal?
YES >> Encoder operation is OK.
NO >> Refer to PWC-23, "DRIVER SIDE : Diagnosis Procedure"
.
DRIVER SIDE : Diag nosis ProcedureINFOID:0000000003775994
Encoder Circuit Check
1. CHECK ENCODER OPERATION
1. Turn ignition switch ON.
2. Check signal between main power window and door lock/unlock switch connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> GO TO 2
2. CHECK FRONT POWER WINDOW MOTOR LH POWER SUPPLY
Te r m i n a l s
Signal
(Reference value)
(+)
(–)
Main power window
and door lock/unlock switch connector Te r m i n a l
D7 9
Ground Refer to following signal
13
ALKIA0295ZZ
JMKIA0220GB
Revision: December 20092009 QX56