Nissan Murano Z51. Manual - part 355

REAR WINDOW DEFOGGER SWITCH

DEF-11

< DTC/CIRCUIT DIAGNOSIS >

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REAR WINDOW DEFOGGER SWITCH

Description

INFOID:0000000005513197

• The rear window defogger is operated by turning the rear window defogger switch ON.
• The indicator lamp in the rear window defogger illuminates when the rear window defogger is operating.

Component Function Check

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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-11, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000005513199

WITH BOSE AUDIO SYSTEM

1.

CHECK PRESET SWITCH (REAR WINDOW DEFOGGER SWITCH)

Does preset switch operate normally?
• Without navigation system. Refer to 

AV-74, "Diagnosis Description"

.

• With navigation system. Refer to 

AV-587, "Diagnosis Description"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

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

AV-547, "Removal and Installation"

.

(without navigation system) or 

AV-797, "Removal and Installation"

 (with navigation system).

WITHOUT BOSE AUDIO SYSTEM

1.

CHECK A/C CONTROL (REAR WINDOW DEFOGGER SWITCH)

Check A/C control. Refer to 

HAC-75, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace A/C control. Refer to 

VTL-22, "Removal and Installation"

.

DEF-12

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER RELAY

REAR WINDOW DEFOGGER RELAY

Description

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

Component Function Check

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1.

CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT

1.

Perform Active Test (“REAR DEFOGGER”) with CONSULT-III.

2.

Touch “ON”.

3.

Check that the rear window heating wire is getting warmer.

Is the inspection result normal?

YES

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

NO

>> Refer to 

DEF-12, "Diagnosis Procedure"

Diagnosis Procedure

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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 RELAY CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 3.

3.

CHECK FUSE BLOCK (J/B)

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

Is the inspection result normal?

YES

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

NO

>> GO TO 4.

4.

CHECK REAR WINDOW DEFOGGER RELAY

Check rear window defogger relay.
Refer to 

DEF-13, "Component Inspection"

Is the inspection result normal?

YES

>> Replace fuse block (J/B).

NO

>> Replace rear window defogger relay.

(+)

(-)

Condition of rear window defog-

ger switch

Voltage (V)

(Approx.)

BCM

 Connector

Terminal 

M123

151

Ground

ON 0

OFF

Battery voltage

Fuse block (J/B)

Ground

Voltage (V)

(Approx.)

 Connector

Terminal 

M2

4B

Battery voltage

REAR WINDOW DEFOGGER RELAY

DEF-13

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5.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to 

GI-39, "Intermittent Incident"

>> INSPECTION END

Component Inspection

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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.

Terminal

Condition

Continuity

Rear window 

defogger relay

3

5

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

Existed

No current supply

Not existed

SEF497Y

DEF-14

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER

REAR WINDOW DEFOGGER

Description

INFOID:0000000005513204

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:0000000005513205

1.

CHECK REAR WINDOW DEFOGGER

1.

Perform Active Test (“REAR DEFOGGER”) with CONSULT-III.

2.

Touch “ON”.

3.

Check that the rear window heating wire is getting warmer.

Is the inspection result normal?

YES

>> Rear window defogger is OK.

NO

>> Refer to 

DEF-14, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000005513206

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check the following.

-

20A fuse (No.14, located in fuse block (J/B)

-

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.

Disconnect rear window defogger harness connector.

2.

Turn ignition switch ON.

3.

Check voltage between rear window defogger 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.

Check continuity between rear window defogger harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 9.

NO

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

4.

CHECK REAR WINDOW DEFOGGER CIRCUIT 1

(+)

(-)

Condition of rear window

 defogger switch

Voltage (V)

(Approx.)

Rear window defogger

Connector

Terminal 

D184

1

Ground

ON

Battery voltage

OFF

0

Rear window defogger 

Ground

Continuity 

Connector

Terminal

D185

2

Existed