Infiniti QX56 (Z62). Manual - part 1036

PWC-56

< DTC/CIRCUIT DIAGNOSIS >

POWER WINDOW SERIAL LINK

NO

>> GO TO 3.

3.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Disconnect BCM connector and power window main switch connector.

2.

Check continuity between BCM harness connector and power window main switch harness connector.

3.

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.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

FRONT POWER WINDOW SWITCH (PASSENGER SIDE)

FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Component Function 
Check

INFOID:0000000006217314

1.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

 With CONSULT-III

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to 

DLK-39, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-56, "FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Diagnosis Proce-

dure"

.

FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Diagnosis Procedure

INFOID:0000000006217315

1.

CHECK POWER WINDOW SWITCH INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check signal between front power window switch (passenger side) harness connector and ground with
oscilloscope.

BCM

Power window main switch

Continuity

Connector

Terminal

Connector

Terminal

M68

8

D5

14

Existed

BCM

Ground

Continuity 

Connector

Terminal

M68

8

Not existed

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

POWER WINDOW SERIAL LINK

PWC-57

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

Is the inspection result normal?

YES

>> Replace front power window switch (passenger side). Refer to 

PWC-74, "Removal and Installa-

tion"

.

NO

>> GO TO 2.

2.

CHECK POWER WINDOW SERIAL LINK SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front power window switch (passenger side) connector.

3.

Turn ignition switch ON.

4.

Check voltage between front power window switch (passenger side) harness connector and ground.

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to 

PWC-74, "Removal and Installation"

.

NO

>> GO TO 3.

3.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Disconnect power window main switch connector.

2.

Check continuity between power window main switch harness connector and front power window switch
(passenger side) harness connector.

3.

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

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

REAR POWER WINDOW SWITCH LH

(+)

(–)

Signal

(Reference value)

Front power window switch (passenger side)

Connector

Terminal 

D25

16

Ground

JPMIA0013GB

(+)

(–)

Voltage (V)

(Approx.)

Front power window switch (passenger side)

Connector

Terminal 

D25

16

Ground

12

Power window main switch

Front power window switch (passenger side)

Continuity

Connector

Terminal

Connector

Terminal

D5

14

D25

16

Existed

Power window main switch

Ground

Continuity 

Connector

Terminal

D5

14

Not existed

PWC-58

< DTC/CIRCUIT DIAGNOSIS >

POWER WINDOW SERIAL LINK

REAR POWER WINDOW SWITCH LH : Component Function Check

INFOID:0000000006217316

1.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

 With CONSULT-III

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to 

DLK-39, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-58, "REAR POWER WINDOW SWITCH LH : Diagnosis Procedure"

.

REAR POWER WINDOW SWITCH LH : Diagnosis Procedure

INFOID:0000000006217317

1.

CHECK POWER WINDOW SWITCH INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check signal between rear power window switch LH harness connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> Replace rear power window switch LH. Refer to 

PWC-74, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK POWER WINDOW SERIAL LINK SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect rear power window switch LH connector.

3.

Turn ignition switch ON.

4.

Check voltage between rear power window switch LH harness connector and ground.

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to 

PWC-74, "Removal and Installation"

.

NO

>> GO TO 3.

3.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Disconnect power window main switch connector.

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

(+)

(–)

Signal

(Reference value)

Rear power window switch LH

Connector

Terminal 

D63

16

Ground

JPMIA0013GB

(+)

(–)

Voltage (V)

(Approx.)

Rear power window switch LH

Connector

Terminal 

D63

16

Ground

12

POWER WINDOW SERIAL LINK

PWC-59

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

2.

Check continuity between power window main switch harness connector and rear power window switch
LH harness connector.

3.

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

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

REAR POWER WINDOW SWITCH RH

REAR POWER WINDOW SWITCH RH : Component Function Check

INFOID:0000000006217318

1.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

 With CONSULT-III

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to 

DLK-39, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-59, "REAR POWER WINDOW SWITCH RH : Diagnosis Procedure"

.

REAR POWER WINDOW SWITCH RH : Diagnosis Procedure

INFOID:0000000006217319

1.

CHECK POWER WINDOW SWITCH INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check signal between rear power window switch RH harness connector and ground with oscilloscope.

Power window main switch

Rear power window switch LH

Continuity

Connector

Terminal

Connector

Terminal

D5

14

D63

16

Existed

Power window main switch

Ground

Continuity 

Connector

Terminal

D5

14

Not existed

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON