Nissan GT-R. Manual - part 69

 

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Nissan GT-R. Manual - part 69

 

 

REAR WINDOW DEFOGGER SWITCH

DEF-7

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

REAR WINDOW DEFOGGER SWITCH

Component Function Check

INFOID:0000000009161593

1.

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

Check that the indicator lamp of rear window defogger illuminates when rear window defogger switch ON.
Is the inspection result normal?

YES

>> Rear window defogger switch function is OK.

NO

>> Refer to 

DEF-7, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000009161594

1.

CHECK REAR WINDOW DEFOGGER SWITCH

Does rear window defogger switch operate normally?
• Base audio with navigation system. Refer to 

AV-67, "Symptom Table"

• Bose audio with navigation system. Refer to 

AV-158, "Symptom Table"

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace preset switch (rear window defogger switch). Refer to 

AV-87, "Removal and Installation"

(Base audio with navigation) or 

AV-180, "Removal and Installation"

 (Bose audio with navigation).

DEF-8

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER RELAY

REAR WINDOW DEFOGGER RELAY

Diagnosis Procedure

INFOID:0000000009161596

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 10A fuse [No.3, located in fuse block (J/B)].

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

2.

CHECK REAR WINDOW DEFOGGER CIRCUIT 1

1.

Turn ignition switch ON.

2.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Rear window defogger power supply circuit is OK.

NO

>> GO TO 3.

3.

CHECK REAR WINDOW DEFOGGER CIRCUIT 2

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and fuse block (J/B).

3.

Check continuity between BCM harness connector and fuse block (J/B) harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK REAR WINDOW DEFOGGER RELAY

1.

Disconnect rear window defogger relay,

2.

Check rear window defogger relay.

       Refer to 

DEF-9, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace rear window defogger relay.

5.

CHECK FUSE BLOCK (J/B)

1.

Install the rear window defogger relay.

2.

Turn ignition switch ON.

3.

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

Is the inspection result normal?

(+)

(–)

 Condition

Voltage (V)

(Approx.)

BCM

 Connector

Terminal 

M123

151

Ground

Rear window defogger switch: ON 

0

Rear window defogger switch: OFF

Battery voltage

BCM 

Fuse block (J/B)

Continuity 

Connector

Terminal

Connector

Terminal

M123

151

M2

4B

Existed

(+)

(–)

Voltage (V)

(Approx.)

Fuse block (J/B)

 Connector

Terminal 

M2

4B

Ground

Battery voltage

REAR WINDOW DEFOGGER RELAY

DEF-9

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

YES

>> GO TO 6.

NO

>> Replace fuse block (J/B). 

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to 

GI-38, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000009161597

1.

CHECK REAR WINDOW DEFOGGER RELAY

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger relay.

3.

Check rear window defogger relay.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace rear window defogger relay.

Rear window 

defogger relay

Condition

Continuity

Terminal

3

5

12 V direct current supply between termi-
nals 1 and 2.

Existed

No current supply

Not existed

SEF497Y

DEF-10

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER

REAR WINDOW DEFOGGER

Diagnosis Procedure

INFOID:0000000009161599

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check the following.

-

20A fuse [No.15, located in fuse block (J/B)]

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between rear window defogger harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger connector.

3.

Check continuity between rear window defogger harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness between rear window defogger and ground.

4.

CHECK REAR WINDOW DEFOGGER CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Disconnect condenser connector.

3.

Check continuity between condenser harness connector and rear window defogger harness connector.

4.

Check continuity between condenser harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness between condenser and rear window defogger.

(+)

(–)

Condition 

Voltage (V)

(Approx.)

Rear window defogger

Connector

Terminal 

B471

1

Ground

Rear window defogger switch: ON

Battery voltage

Rear window defogger switch: OFF

0

Rear window defogger 

Ground

Continuity 

Connector

Terminal

B472

2

Existed

Condenser

Rear window defogger

Continuity 

 Connector

Terminal

Connector

Terminal

B33

1

B471

1

Existed

Condenser

Ground

Continuity 

Connector

Terminal

B33

1

Not existed

 

 

 

 

 

 

 

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