Infiniti M35/M45 Y50. Manual - part 809

POWER WINDOW SYSTEM

GW-33

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Check power Window Main Switch Power Supply Circuit 

NIS0021S

1. 

CHECK POWER SUPPLY CIRCUIT 

1.

Turn ignition switch ON.

2.

Check voltage between power window main switch connector and ground.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 3.

2. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect power window main switch connector.

3.

Check continuity between power window main switch connector and ground.

OK or NG

OK

>> Power window main switch power supply and ground

circuit are OK.

NG

>> Repair or replace harness.

3. 

CHECK HARNESS CONTINUITY 

1.

Disconnect BCM and power window main switch connector.

2.

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

3.

Check continuity between BCM connector and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

Terminal

Voltage (V)

(Approx.)

(+)

(–)

Power window 

main switch

connector

Terminal 

D10

10

Ground

Battery voltage

D11

19

PIIB5936E

Power window main 

switch connector

Terminal

Ground

Continuity 

D11

17

Yes

PIIB5937E

A

B

Continuity 

BCM connector

Terminal

Power window 

main switch

connector

Terminal

M2

53

D10

10

Yes

54

D11

19

A

Ground

Continuity 

BCM connector

Terminal

M2

53

No

54

PIIB5938E

GW-34

POWER WINDOW SYSTEM

4. 

CHECK BCM OUTPUT SIGNAL 

1.

Connect BCM connector. 

2.

Turn ignition switch ON.

3.

Check voltage between BCM connector and ground.

OK or NG

OK

>> Check condition of harness and connector.

NG

>> Replace BCM.

Check power Window Sub-Switch (Front Passenger Side) Power Supply and 
Ground Circuit 

NIS0021T

1. 

CHECK POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Check voltage between power window sub-switch (front passenger side) connector and ground

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 3.

2. 

CHECK GROUND CIRCUIT

1.

Disconnect power window sub-switch (front passenger side) connector.

2.

Check continuity between power window sub-switch (front passenger side) connector and ground.

OK or NG

OK

>> Power window sub-switch (front passenger side) power

supply and ground circuit are OK.

NG

>> Repair or replace harness.

Terminals

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal 

M2

53

Ground

Battery voltage

54

PIIB5939E

Terminal

Voltage (V)

(Approx.)

(+)

(–)

Power window 

sub-switch 

(front passenger side) 

connector

Terminal

D46

10

Ground

Battery voltage

PIIB5940E

Power window 

sub-switch 

(front passenger side) 

connector

Terminal

Ground

Continuity 

D46

11

Yes

PIIB5941E

POWER WINDOW SYSTEM

GW-35

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3. 

CHECK HARNESS CONTINUITY 

1.

Disconnect BCM and power window sub-switch (front passenger side) connector.

2.

Check continuity between BCM connector and power window sub-switch (front passenger side) connec-
tor.

3.

Check continuity between BCM connector and ground.

OK or NG

OK

>> Check condition of harness and connector.

NG

>> Repair or replace harness.

Check power Window Sub-Switch (Rear LH or RH) Power Supply and Ground 
Circuit 

NIS0021U

1. 

CHECK POWER SUPPLY 

1.

Turn ignition switch OFF.

2.

Check voltage between power window sub-switch (rear LH or RH) connector and ground.

OK or NG

OK >> GO 

TO 

2.

NG

>> GO TO 3.

2. 

CHECK GROUND CIRCUIT

1.

Disconnect power window sub-switch (rear LH or RH) connector.

2.

Check continuity between power window sub-switch (rear LH or RH) connector and ground.

OK or NG

OK

>> Power window sub-switch (rear LH or RH) power supply

and ground circuit are OK. Refer to symptom chart.

NG

>> Repair or replace harness.

A

B

Continuity 

BCM connector

Terminal

Power window 

sub-switch 

(front passenger side) 

connector

Terminal

M2

54

D46

10

Yes

A

Ground

Continuity 

BCM connector

Terminal

M2

54

No

PIIB5942E

Terminal

Voltage (V)

(Approx.)

(+)

(–)

Power window 

sub-switch

 (rear LH or RH) 

connector

Terminal 

D60 (LH)

D80 (RH)

10

Ground

Battery voltage

PIIB5940E

Power window 

sub-switch

 (rear LH or RH) 

connector

Terminal

Ground

Continuity 

D60 (LH)

D80 (RH)

11

Yes

PIIB5941E

GW-36

POWER WINDOW SYSTEM

3. 

CHECK HARNESS CONTINUITY

1.

Disconnect BCM and power window sub-switch (rear LH or RH) connector.

2.

Check continuity between BCM connector and power window sub-switch (rear LH or RH) connector.

3.

Check continuity between BCM connector and ground.

OK or NG

OK

>> Check condition of harness and connector.

NG

>> Repair or replace harness.

Check power Window Motor (Front Driver Side) Circuit 

NIS0021V

1. 

CHECK POWER WINDOW MAIN SWITCH OUTPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between power window main switch connector and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Replace power window main switch.

A

B

Continuity 

BCM connector

Terminal

Power window 

sub-switch 

(rear LH or RH) 

connector

Terminal

M2

54

D60 (LH)

D80 (RH)

10

Yes

A

Ground

Continuity 

BCM connector

Terminal

M2

54

No

PIIB5942E

Terminal

Window

Condition

Voltage (V)

(Approx.)

(+)

(–)

Power window 

main switch 

connector

Terminal

D10

8

Ground

UP

Battery voltage

DOWN

0

11

UP

0

DOWN

Battery voltage

PIIB5943E