Nissan Pathfinder. Instruction - part 937

PWC-44

< DTC/CIRCUIT DIAGNOSIS >

[LH FRONT ONLY AUTO DOWN]

POWER WINDOW MOTOR

Is the inspection result normal?

YES

>> Power window motor is OK.

NO

>> Replace rear power window motor RH. Refer to 

GW-19, "Removal and Installation"

.

Terminal

Motor condition

(+)

(–)

1

2

DOWN

2

1

UP

ENCODER

PWC-45

< DTC/CIRCUIT DIAGNOSIS >

[LH FRONT ONLY AUTO DOWN]

C

D

E

F

G

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M

A

B

PWC

N

O

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ENCODER

DRIVER SIDE
DRIVER SIDE : Description

INFOID:0000000009176143

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 : Component Function Check

INFOID:0000000009176144

1.

 CHECK ENCODER OPERATION

Check front door glass LH perform AUTO DOWN operation normally with main power window and door lock/

unlock switch.
Is the inspection result normal?

YES

>> Encoder operation is OK.

NO

>> Refer to 

PWC-45, "DRIVER SIDE : Diagnosis Procedure"

.

DRIVER SIDE : Diagnosis Procedure

INFOID:0000000009176145

Regarding Wiring Diagram information, refer to 

PWC-17, "Wiring Diagram - With Left Front Only Auto Down"

.

Encoder Circuit Check

1.

 CHECK ENCODER OPERATION

1. Connect front power window motor LH.

2. Turn ignition switch ON.

3. Check signal between main power window and door lock/unlock switch connector D23 and ground with

oscilloscope.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-49, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

 CHECK FRONT POWER WINDOW MOTOR LH POWER SUPPLY

1. Turn ignition switch ON.

2. Check voltage between front power window motor LH connector D9 and ground.

Signal name

Terminals

Signal

(Reference value)

(+)

(–)

 Main power window and door lock/un-

lock switch connector

Terminal 

Encoder signal 1

D23

5

Ground

Refer to following signal

Encoder signal 2

4

JMKIA5210GB

PWC-46

< DTC/CIRCUIT DIAGNOSIS >

[LH FRONT ONLY AUTO DOWN]

ENCODER

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

 CHECK HARNESS CONTINUITY 1

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 D23 and front

power window motor connector D9.

4. Check continuity between main power window and door lock/unlock switch connector D23 and ground.

Is the inspection result normal?

YES

>> Replace main power window and door lock/unlock switch. Refer to 

PWC-62, "Removal and Instal-

lation"

. 

NO

>> Repair or replace harness or connectors.

4.

 CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect front power window motor LH.

3. Check continuity between front power window motor LH connector D9 and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

 CHECK HARNESS CONTINUITY 2

1. Disconnect main power window and door lock/unlock switch.

2. Check continuity between main power window and door lock/unlock switch connector D12 and front

power window motor LH connector D9.

Is the inspection result normal?

YES

>> Check main power window and door lock/unlock switch. Refer to 

PWC-32, "POWER WINDOW

MAIN SWITCH : Component Inspection"

.

NO

>> Repair or replace the harness or connectors.

6.

 CHECK HARNESS CONTINUITY 3

1. Disconnect main power window and door lock/unlock switch.

2. Check continuity between main power window D23 and door lock/unlock switch connector and front

power window motor LH connector D9.

Terminal

Voltage

(Approx.)

(+)

(–)

 Front power window motor LH connector

Terminal 

D9

4

Ground

10

Main power window and door lock/

unlock switch connector

Terminal

Front power window motor LH 

connector

Terminal

Continuity

D23

14

D9

4

Yes

Main power window and door lock/unlock switch connector

Terminal

Ground

Continuity

D23

14

No

Front power window motor LH connector

Terminal

Ground

Continuity 

D9

6

Yes

Main power window and door lock/un-

lock switch connector

Terminal

Front power window motor LH 

connector

Terminal

Continuity

D23

12

D9

6

Yes

ENCODER

PWC-47

< DTC/CIRCUIT DIAGNOSIS >

[LH FRONT ONLY AUTO DOWN]

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PWC

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3. Check continuity between main power window and door lock/unlock switch connector D23 and ground.

Is the inspection result normal?

YES

>> Replace front power window motor LH. Refer to 

GW-14, "Removal and Installation"

. 

NO

>> Repair or replace harness or connectors. 

Main power window and door lock/unlock 

switch connector

Terminal

Front power window motor 

LH connector

Terminal

Continuity

D23

5

D9

3

Yes

4

5

Main power window and door lock/unlock 

switch connector

Terminal

Ground

Continuity

D23

5

No

4