Infiniti M35/M45 Y50. Manual - part 823

REAR WINDOW DEFOGGER

GW-89

C

D

E

F

G

H

J

K

L

M

A

B

GW

5. 

CHECK GROUND CIRCUIT

Check continuity between door mirror connector and ground.

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace harness.

6. 

CHECK DOOR MIRROR DEFOGGER 

1.

Connect door mirror connector.

2.

Check door mirror.

OK or NG

OK

>> Check condition of harness and connector.

NG

>> Replace malfunctioning door mirror.

Check Driver Side Door Mirror Defogger Circuit 

NIS0022W

1. 

CHECK POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect door mirror LH connector. 

3.

Turn ignition switch ON.

4.

Check voltage between door mirror LH connector and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness between fuse block (J/B) and

door mirror LH.

Door mirror connector

Terminal

Ground

Continuity 

D2 (LH)

D39 (RH)

8

Yes

PIIB5989E

Door mirror connector

Terminal 

Continuity 

D2 (LH)

D39 (RH)

4

8

Yes

PIIB5990E

Terminals

Condition of rear 

window defogger 

switch

Voltage (V)

(Approx.)

(+)

(–)

Door mirror LH 

connector

Terminal 

D2

4

Ground

ON

Battery voltage

OFF

0

PIIB5991E

GW-90

REAR WINDOW DEFOGGER

2. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between door mirror LH connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness between door mirror LH and

ground.

3. 

CHECK DOOR MIRROR DEFOGGER 

1.

Connector door mirror LH connector.

2.

Check door mirror LH.

OK or NG

OK

>> Check condition of harness and connector.

NG

>> Replace door mirror LH.

Check Passenger Side Door Mirror Defogger Circuit 

NIS0022X

1. 

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect door mirror RH connector.

3.

Turn ignition switch ON.

4.

Check voltage between door mirror RH connector and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness between fuse block (J/B) and

door mirror RH.

Door mirror LH

connector

Terminal

Ground

Continuity 

D2

8

Yes

PIIB5989E

Door mirror LH

connector

Terminal Continuity 

D2

4

8

Yes

PIIB5990E

Terminals

Condition of rear 

window defogger 

switch

Voltage (V)

(Approx.)

(+)

(–)

Door mirror RH 

connector

Terminal 

D39

4

Ground

ON

Battery voltage

OFF

0

PIIB5991E

REAR WINDOW DEFOGGER

GW-91

C

D

E

F

G

H

J

K

L

M

A

B

GW

2. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between door mirror RH connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness between door mirror RH and

ground.

3. 

CHECK DOOR MIRROR DEFOGGER 

1.

Connector RH door mirror connector.

2.

Check door mirror RH.

OK or NG

OK

>> Check condition of harness and connector.

NG

>> Replace door mirror.

Door mirror RH

connector

Terminal

Ground

Continuity 

D39

8

Yes

PIIB5989E

Door mirror RH

connector

Terminal Continuity 

D39

4

8

Yes

PIIB5990E

GW-92

REAR WINDOW DEFOGGER

Check Filament

NIS0022Y

1.

When measuring voltage, wrap tin foil around the top of the neg-
ative probe. Then press the foil against the wire with your finger.

2.

Attach probe circuit tester (in Volt range) to middle portion of
each filament.

3.

If a filament is burned out, circuit tester registers 0 or battery
voltage.

4.

To locate burned out point, move probe to left and right along fil-
ament. Test needle will swing abruptly when probe passes the
point.

Filament Repair

NIS0022Z

REPAIR EQUIPMENT

●

Conductive silver composition (Dupont No. 4817 or equivalent)

●

Ruler 30 cm (11.8 in) long

●

Drawing pen

●

Heat gun

●

Alcohol

●

Cloth

SEL122R

SEL263

SEL265