Murano Cross Cabriolet Z51 (2012 year). Manual — part 28

DEF-14

< ECU DIAGNOSIS INFORMATION >

SOFT TOP CONTROL UNIT

SOFT TOP CONTROL UNIT

List of ECU Reference

INFOID:0000000007566493

ECU

Reference

Soft top control unit

RF-51, "Reference Value"

RF-60, "Fail-safe"

RF-61, "DTC Inspection Priority Chart"

RF-63, "DTC Index"

Revision: 2013 February

2012 Murano CrossCabriolet

REAR WINDOW DEFOGGER SYSTEM

DEF-15

< WIRING DIAGRAM >

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WIRING DIAGRAM

REAR WINDOW DEFOGGER SYSTEM

Wiring Diagram

INFOID:0000000007566494

JCLWA5333GB

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-16

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000007566495

DETAILED FLOW

1.

OBTAIN INFORMATION ABOUT SYMPTOM

Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.

>> GO TO 2.

2.

CHECK DTC

Perform self diagnosis with CONSULT
Is any DTC detected?

YES

>> Refer to

DEF-13, "List of ECU Reference"

.

NO

>> GO TO 3.

3.

REPRODUCE THE MALFUNCTION INFORMATION

Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.

>> GO TO 4.

4.

IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”

Use “Symptom diagnosis” from the symptom inspection result in step 3. Then identify where to start perform-
ing the diagnosis based on possible causes and symptoms.

>> GO TO 5.

5.

IDENTIFY MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”

Perform the diagnosis with “Component diagnosis” of the applicable system.

>> GO TO 6.

6.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 7.

7.

FINAL CHECK

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 3.
Are all malfunctions corrected?

YES

>> INSPECTION END

NO

>> GO TO 4.

Revision: 2013 February

2012 Murano CrossCabriolet

REAR WINDOW DEFOGGER SWITCH

DEF-17

< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

REAR WINDOW DEFOGGER SWITCH

Component Function Check

INFOID:0000000007566496

1.

CHECK FUNCTION

Check that the indicator lamp of rear window defogger illuminates when rear window defogger switch is ON.

Is the inspection result normal?

YES

>> Rear window defogger switch function is OK.

NO

>> Refer to

DEF-17, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000007566497

1.

CHECK MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER SWITCH)

Check multifunction switch (rear window defogger switch) operate.
• BOSE audio without navigation. Refer to

AV-17, "On Board Diagnosis Function"

.

• BOSE audio with navigation. Refer to

AV-136, "On Board Diagnosis Function"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the malfunctioning parts.

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-18

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER RELAY

REAR WINDOW DEFOGGER RELAY

Component Function Check

INFOID:0000000007566498

1.

CHECK FUNCTION

With CONSULT

1.

Turn ignition switch ON.

2.

Select “REAR DEFOGGER” of “BCM” using CONSULT.

3.

Select “REAR DEFOGGER” in “ACTIVE TEST” mode.

4.

Touch “ON”.

5.

Check that the rear window heating wire is getting warmer.

Is the inspection result normal?

YES

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

NO

>> Refer to

DEF-18, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000007566499

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

1.

Turn ignition switch ON.

2.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 3.

3.

CHECK REAR WINDOW DEFOGGER RELAY 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.

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M123

151

Ground

Rear window de-
fogger switch

ON

0

OFF

Battery voltage

BCM

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

M123

151

M2

4B

Existed

BCM

Ground

Continuity

Connector

Terminal

M123

151

Not existed

Revision: 2013 February

2012 Murano CrossCabriolet

REAR WINDOW DEFOGGER RELAY

DEF-19

< DTC/CIRCUIT DIAGNOSIS >

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4.

CHECK REAR WINDOW DEFOGGER RELAY

1.

Disconnect rear window defogger relay,

2.

Check rear window defogger relay.

Refer to

DEF-19, "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) (fuse block side) and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace fuse block (J/B).

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to

GI-40, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000007566500

1.

CHECK REAR WINDOW DEFOGGER RELAY

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger relay.

3.

Check continuity between rear window defogger relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace rear window defogger relay.

(+)

(–)

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

M2

4B

Ground

Battery voltage

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

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-20

< DTC/CIRCUIT DIAGNOSIS >

SOFT TOP CONTROL UNIT

SOFT TOP CONTROL UNIT

Component Function Check

INFOID:0000000007566501

1.

CHECK REAR WINDOW DEFOGGER

With CONSULT

1.

Turn ignition switch ON and soft top fully close.

2.

Select “REAR DEFOGGER” of “BCM” using CONSULT.

3.

Select “REAR DEFOGGER” in “ACTIVE TEST” mode.

4.

Touch “ON”.

5.

Check that the rear window heating wire is getting warmer.

Is the inspection result normal?

YES

>> Soft top control unit is OK.

NO

>> Refer to

DEF-20, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000007566502

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 SOFT TOP CONTROL UNIT CIRCUIT

1.

Disconnect soft top control unit connector and fuse block (J/B) connector.

2.

Check continuity between soft top control unit and fuse block (J/B) harness connector.

3.

Check continuity between soft top control unit and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness and ground.

3.

CHECK FUSE BLOCK (J/B)

1.

Turn ignition switch ON.

2.

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

Fuse block (J/B)

Soft top control unit

Continuity

Connector

Terminal

Connector

Terminal

B6

10G

B324

49

Existed

11G

48

Soft top control unit

Ground

Continuity

Connector

Terminal

B324

49

Not existed

48

Revision: 2013 February

2012 Murano CrossCabriolet

SOFT TOP CONTROL UNIT

DEF-21

< DTC/CIRCUIT DIAGNOSIS >

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Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace fuse block (J/B).

4.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to

GI-40, "Intermittent Incident"

.

>> INSPECTION END.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

B6

10G

Ground

Rear window defogger
switch

ON

Battery voltage

OFF

0

11G

ON

Battery voltage

OFF

0

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-22

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER

REAR WINDOW DEFOGGER

Component Function Check

INFOID:0000000007566503

1.

CHECK FUNCTION

1.

Select “REAR DEFOGGER” in “ACTIVE TEST” of “IPDM E/R” using CONSULT.

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-22, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000007566504

1.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON and soft top fully close.

2.

Check voltage between rear window defogger harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK REAR WINDOW DEFOGGER CIRCUIT 1

1.

Turn power switch OFF.

2.

Disconnect condenser connector.

3.

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

4.

Check continuity between condenser connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK REAR WINDOW DEFOGGER CIRCUIT 2

1.

Turn ignition switch OFF.

2.

Disconnect soft top control unit connector.

3.

Check continuity between soft top control unit harness connector and rear window defogger harness con-
nector.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Rear window defogger

Connector

Terminal

B350

1

Ground

Rear window defogger
switch

ON

Battery voltage

OFF

0

Condenser

Rear window defogger

Continuity

Connector

Terminal

Connector

Terminal

B353

2

B350

1

Existed

Condenser

Ground

Continuity

Connector

Terminal

B353

2

Not existed

Revision: 2013 February

2012 Murano CrossCabriolet

REAR WINDOW DEFOGGER

DEF-23

< DTC/CIRCUIT DIAGNOSIS >

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4.

Check continuity between soft top control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace soft top control unit. Refer to

RF-235, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

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 5.

NO

>> Repair or replace harness.

5.

CHECK FILAMENT

Check filament.
Refer to

DEF-23, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace filament. Refer to

DEF-34, "Inspection and Repair"

.

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to

GI-40, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000007566505

1.

CHECK FILAMENT

Check the filament for damage.
Refer to

DEF-34, "Inspection and Repair"

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair filament.

Soft top control unit

Condenser

Continuity

Connector

Terminal

Connector

Terminal

B327

104

B352

1

Existed

111

Soft top control unit

Ground

Continuity

Connector

Terminal

B327

104

Not existed

111

Rear window defogger

Ground

Continuity

Connector

Terminal

B351

2

Existed

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-24

< DTC/CIRCUIT DIAGNOSIS >

DOOR MIRROR DEFOGGER

DOOR MIRROR DEFOGGER

Component Function Check

INFOID:0000000007566506

1.

CHECK DOOR MIRROR DEFOGGER

With CONSULT

1.

Turn ignition switch ON.

2.

Select “REAR DEFOGGER” of “BCM” using CONSULT.

3.

Select “REAR DEFOGGER” in “ACTIVE TEST” mode.

4.

Touch “ON”.

5.

Check that both side door mirror glass is getting warmer.

Is the inspection result normal?

YES

>> Door mirror defogger is OK.

NO

>> Refer to

DEF-24, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000007566507

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check the following.

-

10A fuse (No.13, 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 FUSE BLOCK (J/B)

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace fuse block (J/B).

(+)

(-)

Condition

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

M3

10C

Ground

Rear window de-
fogger switch

ON

Battery voltage

OFF

0

Revision: 2013 February

2012 Murano CrossCabriolet

DRIVER SIDE DOOR MIRROR DEFOGGER

DEF-25

< DTC/CIRCUIT DIAGNOSIS >

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DRIVER SIDE DOOR MIRROR DEFOGGER

Component Function Check

INFOID:0000000007566508

1.

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER

With CONSULT

1.

Turn ignition switch ON.

2.

Select “REAR DEFOGGER” of “BCM” using CONSULT.

3.

Select “REAR DEFOGGER” in “ACTIVE TEST” mode.

4.

Touch “ON”.

5.

Check that the driver side door mirror glass is getting warmer.

Is the inspection result normal?

YES

>> Driver side door mirror defogger is OK.

NO

>> Refer to

DEF-25, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000007566509

1.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect door mirror (driver side) connector.

3.

Turn ignition switch ON.

4.

Check voltage between door mirror (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK FUSE BLOCK (J/B) OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect fuse block (J/B) connector.

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace fuse block (J/B).

3.

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between fuse block (J/B) harness connector and door mirror (driver side) harness con-
nector.

(+)

(-)

Condition

Voltage (V)

(Approx.)

Door mirror (driver side)

Connector

Terminal

D3

7

Ground

Rear window de-
fogger switch

ON

Battery voltage

OFF

0

(+)

(-)

Condition

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

M3

10C

Ground

Rear window de-
fogger switch

ON

Battery voltage

OFF

0

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-26

< DTC/CIRCUIT DIAGNOSIS >

DRIVER SIDE DOOR MIRROR DEFOGGER

3.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

4.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between door mirror (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER

Check driver side door mirror defogger.
Refer to

DEF-26, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace door mirror (driver side).

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to

GI-40, "Intermittent Incident"

.

Is the inspection result normal?

>> INSPECTION END.

Component Inspection

INFOID:0000000007566510

1.

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER

1.

Turn ignition switch OFF.

2.

Disconnect door mirror (driver side) connector.

3.

Check continuity between door mirror terminals.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace door mirror (driver side).

Fuse block (J/B)

Door mirror (driver side)

Continuity

Connector

Terminal

Connector

Terminal

M3

10C

D3

7

Existed

Fuse block (J/B)

Ground

Continuity

Connector

Terminal

M3

10C

Ground

Not existed

Door mirror (driver side)

Ground

Continuity

Connector

Terminal

D3

19

Ground

Existed

Door mirror (driver side)

Continuity

Connector

Terminal

D3

7

19

Existed

Revision: 2013 February

2012 Murano CrossCabriolet

PASSENGER SIDE DOOR MIRROR DEFOGGER

DEF-27

< DTC/CIRCUIT DIAGNOSIS >

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PASSENGER SIDE DOOR MIRROR DEFOGGER

Component Function Check

INFOID:0000000007566511

1.

CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER

With CONSULT

1.

Turn ignition switch ON.

2.

Select “REAR DEFOGGER” of “BCM” using CONSULT.

3.

Select “REAR DEFOGGER” in “ACTIVE TEST” mode.

4.

Touch “ON”.

5.

Check that the passenger side door mirror glass is getting warmer.

Is the inspection result normal?

YES

>> Passenger side door mirror defogger is OK.

NO

>> Refer to

DEF-27, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000007566512

1.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect door mirror (passenger side) connector.

3.

Turn ignition switch ON.

4.

Check voltage between door mirror (passenger side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK FUSE BLOCK (J/B) OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect fuse block (J/B) connector.

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace fuse block (J/B).

3.

CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER

1.

Turn ignition switch OFF.

2.

Check continuity between fuse block (J/B) harness connector and door mirror (passenger side) harness
connector.

(+)

(-)

Condition

Voltage (V)

(Approx.)

Door mirror (Passenger side)

Connector

Terminal

D43

7

Ground

Rear window de-
fogger switch

ON

Battery voltage

OFF

0

(+)

(-)

Condition

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

M3

10C

Ground

Rear window de-
fogger switch

ON

Battery voltage

OFF

0

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-28

< DTC/CIRCUIT DIAGNOSIS >

PASSENGER SIDE DOOR MIRROR DEFOGGER

3.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

4.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between door mirror (passenger side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER

Check passenger side door mirror defogger.
Refer to

DEF-28, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace door mirror (passenger side)..

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to

GI-40, "Intermittent Incident"

.

>> INSPECTION END.

Component Inspection

INFOID:0000000007566513

1.

CHECK PASSENGER DOOR MIRROR DEFOGGER

1.

Turn ignition switch OFF.

2.

Disconnect door mirror (passenger side) connector.

3.

Check continuity between door mirror terminals.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace door mirror (passenger side).

Fuse block (J/B)

Door mirror (passenger side)

Continuity

Connector

Terminal Connector

Terminal

M3

10C

D43

7

Existed

Fuse block (J/B)

Ground

Continuity

Connector

Terminal

M3

10C

Ground

Not existed

Door mirror (passenger side)

Ground

Continuity

Connector

Terminal

D43

19

Ground

Existed

Door mirror (passenger side)

Continuity

Connector

Terminal

D43

7

19

Existed

Revision: 2013 February

2012 Murano CrossCabriolet

REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGERS DO NOT OP-

ERATE

DEF-29

< SYMPTOM DIAGNOSIS >

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SYMPTOM DIAGNOSIS

REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGERS DO NOT
OPERATE

Diagnosis Procedure

INFOID:0000000007566514

1.

CHECK REAR WINDOW DEFOGGER SWITCH

Check rear window defogger switch.
Refer to

DEF-17, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK REAR WINDOW DEFOGGER RELAY

Check rear window defogger relay.
Refer to

DEF-18, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the malfunctioning parts.

3.

CONFIRM THE OPERATION

Confirm the operation again.
Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-40, "Intermittent Incident"

.

NO

>> GO TO 1.

Revision: 2013 February

2012 Murano CrossCabriolet