Nissan Rogue. Manual - part 285

REAR WINDOW DEFOGGER SWITCH

DEF-25

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

Regarding Wiring Diagram information, refer to 

DEF-14, "Wiring Diagram"

.

1.

CHECK REAR WINDOW DEFOGGER SWITCH OPERATION 

With CONSULT

1. Select “REAR DEFOGGER” of “BCM”.

2. Select “REAR DEF SW” in “Data Monitor”.

3. Check “REAR DEF SW” indication under the following conditions.

Is the inspection result normal?

YES

>> Rear window defogger switch is OK.

NO

>> Replace A/C switch. Refer to 

HAC-102, "Removal and Installation"

.

Monitor item

Condition

Status

REAR DEF SW

Rear window defogger switch

Pressed

On

Not Pressed

Off

DEF-26

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER RELAY

REAR WINDOW DEFOGGER RELAY

Description

INFOID:0000000011277733

Power is supplied to the rear window defogger with BCM control.

Component Function Check

INFOID:0000000011277734

1.

 CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT

Check that an operation noise of rear window defogger relay [located in fuse block (J/B)] can be heard when

turning the rear window defogger switch ON.
Is the inspection result normal?

YES

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

NO

>> Refer to 

DEF-26, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000011277735

Regarding Wiring Diagram information, refer to 

DEF-14, "Wiring Diagram"

.

1.

 CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between BCM connector and ground.

Is the inspection result normal?

YES

>> Rear window defogger power supply circuit is OK.

NO

>> GO TO 2.

2.

 CHECK HARNESS CONTINUITY

1. Turn ignition switch OFF.

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

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

 CHECK REAR WINDOW DEFOGGER RELAY

Check rear window defogger relay.

Refer to 

DEF-27, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

NO

>> Replace rear window defogger relay.

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

 Connector

Terminal 

M18

24

Ground

Rear window defogger 

switch 

ON 0

OFF Battery 

voltage

BCM

Fuse block (J/B)

Continuity 

Connector

Terminal

Connector

Terminal

M18 24

M44

6P

Yes

REAR WINDOW DEFOGGER RELAY

DEF-27

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

Component Inspection

INFOID:0000000011277736

1.

 CHECK REAR WINDOW DEFOGGER RELAY

Check rear window defogger relay.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace rear window defogger relay.

Terminal

Condition

Continuity

Rear window 

defogger relay

3

5

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

Yes

No current supply

No

SEF497Y

DEF-28

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT

REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT

Description

INFOID:0000000011277737

Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window

from fogging up.

Component Function Check

INFOID:0000000011277738

1.

 CHECK REAR WINDOW DEFOGGER

Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch

ON.
Is the inspection result normal?

YES

>> Rear window defogger is OK.

NO

>> Refer to 

DEF-28, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000011277739

Regarding Wiring Diagram information, refer to 

DEF-14, "Wiring Diagram"

.

1.

 CHECK FUSES 

Check if any of the following fuses in fuse block (J/B) are blown.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the blown fuse after repairing the affected circuit.

2.

 CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform rear window defogger relay diagnosis. Refer to 

DEF-26, "Diagnosis Procedure"

.

3.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between rear window defogger connector and ground.

COMPONENT PARTS

AMPERE

FUSE NO.

Fuse block (J/B)

15A

23

15A

24

(+)

(–)

Condition

Voltage (V)

(Approx.)

Fuse block (J/B)

 Connector

Terminal 

B29

3T, 5T

Ground

Rear window defogger 

switch 

ON Battery 

voltage

OFF 0