Infiniti G37 Coupe. Manual - part 1020

ENCODER

PWC-21

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

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PWC

N

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Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK ENCORDER POWER SUPPLY CIRCUIT

1.

Connect power window main switch connector.

2.

Turn ignition switch ON.

3.

Check voltage between driver side power window motor harness connector and ground.

Is the measurement value within the specification?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between driver side power window motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

5.

CHECK HARNESS CONTINUITY 1

1.

Turn ignition switch OFF.

2.

Disconnect power window main switch connector.

3.

Check continuity between power window main switch harness connector and driver side power window
motor harness connector.

4.

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

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to 

PWC-92, "Removal and Installation"

. 

NO

>> Repair or replace harness.

6.

CHECK HARNESS CONTINUITY 2

1.

Disconnect power window main switch connector.

2.

Check continuity between power window main switch harness connector and driver side power window
motor harness connector.

Power window main switch connector

Terminal

Ground

Continuity

D8

9

Not existed

13

Terminal

Voltage (V)

(Approx.)

(+)

(–)

 Driver side power window 

motor connector

Terminal 

D10

4

Ground

12

Driver side power window motor con-

nector

Terminal

Ground

Continuity 

D10

1

Existed

Power window main switch con-

nector

Terminal

Driver side power window mo-

tor connector

Terminal

Continuity

D8

5

D10

4

Existed

Power window main switch connector

Terminal

Ground

Continuity

D8

5

Not existed

PWC-22

< COMPONENT DIAGNOSIS >

ENCODER

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to 

PWC-92, "Removal and Installation"

. 

NO

>> Repair or replace harness.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END.

PASSENGER SIDE

PASSENGER SIDE : Description

INFOID:0000000001694005

Detects condition of the passenger side power window motor operation and transmits to power window sub-
switch as the pulse signal. 

PASSENGER SIDE : Component Function Check

INFOID:0000000001694006

1.

CHECK ENCODER OPERATION

Check passenger side door glass perform AUTO open/close operation normally when power window main
switch or power window sub-switch.

Is the inspection result normal?

YES

>> Encoder operation is OK.

NO

>> Refer to 

PWC-22, "PASSENGER SIDE : Diagnosis Procedure"

.

PASSENGER SIDE : Diagnosis Procedure

INFOID:0000000001694007

1.

CHECK ENCODER SIGNAL

1.

Turn ignition switch ON.

2.

Check signal between power window sub-switch harness connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 2.

2.

CHECK ENCORDER SIGNAL CIRCUIT

Power window main switch con-

nector

Terminal

Driver side power window motor 

connector

Terminal

Continuity

D8

14

D10

1

Existed

Terminals

Signal

(Reference value)

(+)

(–)

Power window sub-switch 

connector

Terminal 

D38

12

Ground

Refer to following signal

9

JMKIA1185GB

ENCODER

PWC-23

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

1.

Turn ignition switch OFF.

2.

Disconnect power window sub-switch connector and passenger side power window motor connector.

3.

Check continuity between power window sub-switch harness connector and passenger side power win-
dow motor harness connector.

4.

Check continuity between power window sub-switch connector and gound.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK ENCORDER POWER SUPPLY CIRCUIT

1.

Connect power window sub-switch connector.

2.

Turn ignition switch ON.

3.

Check voltage between passenger side power window motor harness connector and ground.

Is the measurement value within the specification?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between passenger side power window motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

5.

CHECK HARNESS CONTINUITY 1

1.

Turn ignition switch OFF.

2.

Disconnect power window sub-switch connector.

3.

Check continuity between power window sub-switch harness connector and passenger side power win-
dow motor harness connector.

4.

Check continuity between power window sub-switch harness connector and ground.

Power window sub-switch connector

Terminal

Passenger side  power window 

motor connector

Terminal

Continuity

D38

12

D40

2

Existed

9

1

Power window sub-switch connector

Terminal

Ground

Continuity

D38

12

Not existed

9

Terminal

Voltage (V)

(Approx.)

(+)

(–)

 Passenger side power window motor 

connector

Terminal 

D40

4

Ground

12

Passenger side power window motor 

connector

Terminal

Ground

Continuity 

D40

5

Existed

Power window sub-switch connector

Terminal

Passenger side power window 

motor connector

Terminal

Continuity

D38

4

D40

4

Existed

PWC-24

< COMPONENT DIAGNOSIS >

ENCODER

Is the inspection result normal?

YES

>> Replace power window sub-switch. Refer to 

PWC-92, "Removal and Installation"

. 

NO

>> Repair or replace harness.

6.

CHECK HARNESS CONTINUITY 2

1.

Disconnect power window sub-switch connector.

2.

Check continuity between power window sub-switch harness connector and passenger side power win-
dow motor harness connector.

Is the inspection result normal?

YES

>> Replace power window sub-switch . Refer to 

PWC-92, "Removal and Installation"

. 

NO

>> Repair or replace harness.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

>> INSPECTION END.

Power window sub-switch connector

Terminal

Ground

Continuity

D38

4

Not existed

Power window sub-switch connec-

tor

Terminal

Passenger side power window 

motor connector

Terminal

Continuity

D38

15

D40

5

Existed