Page 4113 of 5598
PWC-28
< WIRING DIAGRAM >
POWER WINDOW SYSTEM
JCKWM4479GB
Revision: 2010 May2011 QX56
Page 4114 of 5598
POWER WINDOW SYSTEMPWC-29
< WIRING DIAGRAM >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
JCKWM4480GB
Revision: 2010 May2011 QX56
Page 4115 of 5598

PWC-30
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000006217281
DETAILED FLOW
1.OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much malfunc tion information (conditions and environment when the mal-
function occurred) as possible when the customer brings the vehicle in.
>> GO TO 2.
2.REPRODUCE THE MALFUNCTION INFORMATION
Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.
>> GO TO 3.
3.IDENTIFY THE MALFUNCTIONING SYS TEM WITH “SYMPTOM DIAGNOSIS”
Use “Symptom diagnosis” from the symptom inspection resu lt in step 2. Then identify where to start the diag-
nosis based on possible causes and symptoms.
>> GO TO 4.
4.IDENTIFY MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”
Perform the diagnosis with “Component diagnosis” of the applicable system.
>> GO TO 5.
5.REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
>> GO TO 6.
6.FINAL CHECK
Check that malfunctions are not reproduced when obtaini ng the malfunction information from the customer,
referring to the symptom inspection result in step 2.
Is the malfunctioning part repaired or replaced?
YES >> Trouble diagnosis is completed.
NO >> GO TO 3.
Revision: 2010 May2011 QX56
Page 4116 of 5598
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL
PWC-31
< BASIC INSPECTION >
C
D E
F
G H
I
J
L
M A
B
PWC
N
O P
ADDITIONAL SERVICE WHEN REMO VING BATTERY NEGATIVE TERMI-
NAL
DescriptionINFOID:0000000006274848
When the battery negative terminal is disconnected, the initialization is necessary for normal operation of
power window system.
CAUTION:
The following specified operations can not be performed under the non-initialized condition.
Auto-up operation
Anti-pinch function
Work ProcedureINFOID:0000000006217283
1.SYSTEM INITIALIZATION
Perform system initialization. Refer to PWC-33, "
Work Procedure".
>> GO TO 2.
2.CHECK ANTI-PINCH FUNCTION
Check anti-pinch function. Refer to PWC-34, "
Work Procedure".
>> END
Revision: 2010 May2011 QX56
Page 4117 of 5598
PWC-32
< BASIC INSPECTION >
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
DescriptionINFOID:0000000006274849
When the control unit replaced, the initialization in necessary for normal operation of power window system.
CAUTION:
The following specified operations can not be performed under the non-initialized condition.
Auto-up operation
Anti-pinch function
Work ProcedureINFOID:0000000006217285
1.SYSTEM INITIALIZATION
Perform system initialization. Refer to PWC-33, "
Work Procedure".
>> GO TO 2.
2.CHECK ANTI-PINCH FUNCTION
Check anti-pinch function. Refer to PWC-34, "
Work Procedure".
>> END
Revision: 2010 May2011 QX56
Page 4118 of 5598

SYSTEM INITIALIZATIONPWC-33
< BASIC INSPECTION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
SYSTEM INITIALIZATION
DescriptionINFOID:0000000006274850
If any of the following operations are performed, the in itialization is necessary for normal operation of power
window system.
When control unit replaced.
Electric power supply to power window switch or motor is interrupted by blown fuse or disconnection and
connection of the negative terminal of battery, etc.
Removal and installation of regulator assembly.
Power supply to the power window main switch or power window motor is cut off by the removal
of battery terminal or if the battery fuse is blown.
Disconnection and connection of power window main switch harness connector.
Removal and installation of motor from regulator assembly.
Operation of regulator assembly as an independent unit.
Removal and installation of door glass.
Removal and installation of door glass run.
The following specified operations can not be performed under the non-initialized condition.
Auto-up operation
Anti-pinch function
Work ProcedureINFOID:0000000006274851
1.STEP 1
1. Turn ignition switch ON.
2. Operate power window switch to fully open the wi ndow. (This operation is unnecessary if the window is
already fully open)
3. Continue pulling the power window switch UP (AUTO-UP operation). Even after glass stops at fully closed
position, keep pulling the switch for 2 seconds or more.
4. Check that AUTO-UP function operates normally.
>> GO TO 2.
2.STEP 2
Check anti-pinch function. Refer to PWC-34, "
Work Procedure".
>> END
Revision: 2010 May2011 QX56
Page 4119 of 5598

PWC-34
< BASIC INSPECTION >
CHECK ANTI-PINCH FUNCTION
CHECK ANTI-PINCH FUNCTION
DescriptionINFOID:0000000006274852
If any of the following operations are performed, the initialization is necessary for normal operation of anti-
pinch function.
When control unit replaced.
Electric power supply to power window switch or mo tor is interrupted by blown fuse or disconnection and
connection of the negative terminal of battery, etc.
Removal and installation of regulator assembly.
Power supply to the power window main switch or power window motor is cut off by the removal
of battery terminal or if the battery fuse is blown.
Disconnection and connection of power window main switch harness connector.
Removal and installation of motor from regulator assembly.
Operation of regulator assembly as an independent unit.
Removal and installation of door glass.
Removal and installation of door glass run.
The following specified operations can not be performed under the non-initialized condition.
Auto-up operation
Anti-pinch function
Work ProcedureINFOID:0000000006274853
1.CHECK ANTI-PINCH FUNCTION
Fully open the door window.
Place a piece of wood near fully closed position.
Close door glass completely with AUTO-UP.
Check the following conditions
- Check that glass lowers for approximately 150 mm (5.9 in) without pinching piece of wood and stops.
- Check that glass does not rise not when operating the power window main switch while lowering. CAUTION:
Perform initial setting when AUTO-UP operation or anti-pinch function does not operate normally.
Check that AUTO-UP operates before inspectio n when system initialization is performed.
Do not check with hands and other body parts b ecause they may be pinched. Do not get pinched.
>> END
Revision: 2010 May2011 QX56
Page 4120 of 5598

POWER SUPPLY AND GROUND CIRCUITPWC-35
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Diagnosis ProcedureINFOID:0000000006217290
1.CHECK POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect power window main switch connectors.
3. Turn ignition switch ON.
4. Check voltage between power window main switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector and power window main switch harness connector.
4. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation" .
NO >> Repair or replace harness.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK INTERMITTENT INCIDENT
(+) (–)Voltage (V)
(Approx.)
Power window main switch
Connector Terminal D5 10 Ground 12
D6 19
BCM Power window main switch Continuity
Connector Terminal Connector Terminal
M70 68 D5 10
Existed
69 D6 19
BCM GroundContinuity
Connector Terminal
M70 68
Not existed
69
Power window main switch
GroundContinuity
Connector Terminal
D6 17 Existed
Revision: 2010 May2011 QX56