2008 INFINITI QX56 battery

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-116, "
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 (A) and front power window motor RH con-
nector (B).
4. Check continuity between power window and door lock/unlock switch RH connector (A) 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-9, "
Removal and Installation".
PASSENGER SIDE : Component InspectionINFOID:0000000001735668
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: March 2010 2008 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-9, "
Removal and Installation".
REAR LH
REAR LH : DescriptionINFOID:0000000001735669
Door glass moves UP/DOWN by receiving the signal from power window main switch or rear power window
switch LH.
REAR LH : Componen t Function CheckINFOID:0000000001735670
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:0000000001735671
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.
OK or NG
OK >> Replace rear power window switch LH. Refer to PWC-117, "Removal and Installation".
NG >> 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.
OK or NG
Te r m i n a l Motor condition
(+) (–)
12 D OW N
21 U P
ConnectorTe 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: March 2010 2008 QX56

POWER WINDOW MOTORPWC-21
< COMPONENT DIAGNOSIS >
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OK >> GO TO 3
NG >> 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-13, "
Removal and Installation".
REAR LH : Component InspectionINFOID:0000000001735672
COMPONENT INSPECTION
1. CHECK REAR POWER WINDOW MOTOR LH
Does motor operate by connecting the battery voltage 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-13, "
Removal and Installation".
REAR RH
REAR RH : DescriptionINFOID:0000000001735673
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:0000000001735674
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:0000000001735675
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 D OW N
12 U P
ConnectorTe 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: March 2010 2008 QX56

PWC-22
< COMPONENT DIAGNOSIS >
POWER WINDOW MOTOR
OK or NG
OK >> Replace rear power window switch RH. Refer to PWC-117, "Removal and Installation".
NG >> 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.
OK or NG
OK >> GO TO 3
NG >> 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-13, "
Removal and Installation".
REAR RH : Component InspectionINFOID:0000000001735676
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-13, "
Removal and Installation".
4 - 9
: Continuity should exist.
5 - 10 : Continuity should exist.
LIIA1379E
Te r m i n a l
Motor condition
(+) (–)
21 D OW N
12 U P
Revision: March 2010 2008 QX56

PWC-34
< COMPONENT DIAGNOSIS >
DOOR SWITCH
DOOR SWITCH
DescriptionINFOID:0000000001735683
Detects door open/close condition and transmits the signal to BCM.
Component Function CheckINFOID:0000000001735684
1. CHECK FRONT DOOR SWITCH INPUT SIGNAL
Check (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT-III. Refer to PWC-
10, "RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)".
Is the inspection result normal?
YES >> Front door switch circuit is OK.
NO >> Refer to PWC-34, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001735685
1. CHECK FRONT DOOR SWITCH
Check voltage between BCM connector and ground.
Is the measurement value within the specification?
YES >> Replace BCM. Refer to BCS-55, "Removal and Installation".
NO >> GO TO 2
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and front door switch.
3. Check continuity between BCM connector and front door switch connector.
4. Check continuity between front door switch connector and ground.
Monitor item Condition
DOOR SW-DR OPEN
: ON
CLOSE : OFF
DOOR SW-AS OPEN
: ON
CLOSE : OFF
Te r m i n a l s
Door conditionVoltage (V)
(Approx.)
(+)
(–)
BCM
connector Te r m i n a l
M18 12 GroundFront door
RH OPEN
0
CLOSE Battery voltage
M19 47 Front door
LH OPEN
0
CLOSE Battery voltage
LIIA0946E
BCM connector Terminal Front door switch
connector Terminal Continuity
M18 12RH: B108
2Yes
M19 47LH: B8
LIIA0947E
Revision: March 2010 2008 QX56

DOOR SWITCHPWC-35
< COMPONENT DIAGNOSIS >
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Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
Is the measurement value within the specification?
YES >> GO TO 4
NO >> Replace BCM. Refer to BCS-55, "
Removal and Installation".
4. CHECK FRONT DOOR SWITCH
Check front door switch.
Refer to PWC-35, "
Component Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> Replace front door switch.
Component InspectionINFOID:0000000001735686
1. CHECK FRONT DOOR SWITCH
Check front door switches.
Is the inspection result normal?
YES >> Front door switch is OK.
NO >> Replace front door switch.
Front door switch connector Te r m i n a l
GroundContinuity
B8 (LH) 2N o
B108 (RH)
Te r m i n a l
Voltage (V)
(Approx.)
(+)
(–)
BCM connector Terminal
M18 12
Ground Battery voltage
M19 47
LIIA0946E
Te r m i n a l
Door switch Continuity
Door switches
2 Ground part of
door switch Pressed
No
Released Yes
LIIA2377E
Revision: March 2010 2008 QX56

REAR POWER VENT WINDOW MOTOR LH CIRCUIT CHECK
PWC-45
< COMPONENT DIAGNOSIS >
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REAR POWER VENT WINDOW MOTOR LH CIRCUIT CHECK
DescriptionINFOID:0000000001735701
Rear power vent windows OPEN/CLOSE by receiving the signal from rear power vent window switch.
Diagnosis ProcedureINFOID:0000000001735702
1. CHECK REAR POWER VENT WINDOW LH SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power vent window motor LH.
3. Turn ignition switch ON.
4. Check voltage between rear power vent window motor LH con- nector B52 terminals 1, 2 and ground.
Is the inspection result normal?
YES >> Replace rear power vent window motor LH. Refer to GW-15, "Removal and Installation".
NO >> Repair or replace harness.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
B52 1
Ground Opening Battery voltage
Closing 0
2 Opening
0
Closing Battery voltage
ALKIA1037GB
Revision: March 2010 2008 QX56

PWC-46
< COMPONENT DIAGNOSIS >
REAR POWER VENT WINDOW MOTOR RH CIRCUIT CHECK
REAR POWER VENT WINDOW MOTOR RH CIRCUIT CHECK
DescriptionINFOID:0000000001735703
Rear power vent windows OPEN/CLOSE by receiving the signal from rear power vent window switch.
Diagnosis ProcedureINFOID:0000000001735704
1.CHECK REAR POWER VENT WINDOW SWITCH RH SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power vent window motor RH.
3. Turn ignition switch ON.
4. Check voltage between rear power vent window motor LH con- nector B150 terminals 1, 2 and ground.
Is the inspection result normal?
YES >> Replace rear power vent window motor RH. Refer to GW-15, "Removal and Installation".
NO >> Repair or replace harness.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
B150 1
Ground Opening Battery voltage
Closing 0
2 Opening
0
Closing Battery voltage
ALKIA1037GB
Revision: March 2010 2008 QX56