Infiniti G35 (V35). Manual - part 550

REAR WINDOW DEFOGGER

GW-71

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3. 

CHECK BCM OUTPUT SIGNAL

1.

Connect BCM connector.

2.

Turn ignition switch ON.

3.

Check voltage between BCM connector M1 terminal 9 and
ground.

OK or NG

OK

>> Replace A/C and audio controller.

NG

>> Replace BCM.

Check Rear Window Defogger Power Supply Circuit

NIS000FD

1. 

CHECK FUSE 

●

Check 10A fuse [No. 12, located in fuse block (J/B)]

●

Check 20A fuse [No. 75, located in fuse IPDM E/R]

●

Check 20A fuse [No. 80, located in fuse IPDM E/R]

NOTE:
Refer to 

GW-58, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger relay.

3.

Turn ignition switch ON.

4.

Check voltage between rear window defogger relay connector B417 terminal 1, 3, 6 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

9 (L/R) – Ground

: Approx. 5V

PIIA6208E

Connector

Terminals (Wire color)

Voltage (V)

(Approx.)

(+)

(-)

B417

1 (O/R)

Ground

Battery voltage

3 (W)

6 (R)

PIIA4233E

GW-72

REAR WINDOW DEFOGGER

3. 

CHECK REAR WINDOW DEFOGGER RELAY

Check continuity between rear window defogger terminals 3 and 5, 6 and 7.

OK or NG

OK

>> GO TO 4.

NG

>> Replace rear window defogger relay.

4. 

CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Installation rear window defogger relay.

3.

Turn ignition switch ON.

4.

Turn rear window defogger switch OFF.

5.

Check voltage between IPDM E/R connector E9 terminal 52 and ground.

OK or NG

OK

>> Rear window defogger power supply circuit check is OK.

NG

>> GO TO 5.

5. 

CHECK IPDM E/R HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and rear defogger relay.

3.

Check continuity between IPDM E/R connector E9 terminal 52
and rear window defogger relay connector B417 terminal 2.

OK or NG

OK

>> Check connector for damage and loose connection.

NG

>> Repair or replace harness.

Terminal

Condition

Continuity

3

5

12V direct current supply 
between terminals 1 and 2

Yes

No current supply

No

6

7

12V direct current supply 
between terminals 1 and 2

Yes

No current supply

No

SEC202B

52 (G/R) – Ground

: Battery voltage

PIIA6210E

52 (G/R) – 2 (BR)

: Continuity should exist.

PIIA6211E

REAR WINDOW DEFOGGER

GW-73

C

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Check Rear Window Defogger Circuit

NIS000FE

1. 

CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger connector.

3.

Turn ignition switch ON.

4.

Check voltage between rear window defogger connector  and ground.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 3.

2. 

CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between rear window defogger connector
B451 terminal 1 and ground.

OK or NG

OK

>> Check filament, Refer to

GW-78, "Check Filament"

●

If filament is OK.
Check the condition of the harness and the connector.

●

If filament is NG.
Repair filament.

NG

>> Repair or replace harness.

3. 

CHECK REAR WINDOW DEFOGGER POWER WINDOW SUPPLY CIRCUIT 2

1.

Turn ignition switch OFF.

2.

Disconnect condenser connector.

3.

Turn ignition switch ON.

4.

Check voltage between condenser connector and ground.

OK or NG

OK 

>> Repair or replace harness.

NG

>> GO TO 4.

Connector

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(-)

B471

2

Ground

Rear window defogger 
switch ON.

 Battery voltage

Rear window defogger  
switch OFF.

0

PIIA3517E

1 (B) 

−

 Ground

: Continuity should exist

PIIA3518E

Connector

Terminals (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(-)

B416

1 (L)

Ground

Rear window defogger 
switch ON

Battery voltage

Rear window defogger 
switch OFF

0

PIIA3519E

GW-74

REAR WINDOW DEFOGGER

4. 

CHECK CONDENSER HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger relay.

3.

Check continuity between rear window defogger relay connector
B417 terminal 5 and condenser connector B416 terminal 1.

OK or NG

OK

>> Check the condition of the harness and the connector.

NG

>> Repair or replace harness.

Check Door Mirror Defogger Power Supply Circuit

NIS000FF

1. 

CHECK FUSE 

●

Check 10A fuse [No. 8, located in fuse block (J/B)]

NOTE:
Refer to 

GW-58, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 1

1.

Turn ignition switch ON.

2.

Check voltage between fuse block (J/B) connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3. 

CHECK DOOR MIRROR DEFOGGER POWER SUPPLY  2

Check voltage between fuse block (J/B) connector and ground.

OK or NG

OK

>> GO TO 4. 

NG

>> Replace fuse block (J/B).

5 (L) – 1 (L)

: Continuity should exist.

PIIA3865E

Connector

Terminal (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

E101

2C (B/Y)

Ground

Rear window defogger 
switch ON

 Battery voltage

Rear window defogger 
switch OFF

0

PIIA2388E

Connector

Terminal (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

M5

5B (L)

Ground

Rear window defogger 
switch ON

 Battery voltage

Rear window defogger 
switch OFF

0

PIIA2386E