Murano Cross Cabriolet Z51 (2013 year). Manual - part 28

DEF-8

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

ACTIVE TEST

Monitor Item

Description

REAR DEF SW

This is displayed even when it is not equipped.

PUSH SW

Indicates [ON/OFF] condition of push switch.

Test Item

Description

REAR DEFOGGER

Rear window defogger operates when “ON” on CONSULT screen is touched.

Revision: 2012 October

2013 Murano CrossCabriolet

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

DEF-9

< SYSTEM DESCRIPTION >

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DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

CONSULT Function

INFOID:0000000008462895

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with soft top control unit.

SELF-DIAG RESULT

Refer to 

RF-57, "DTC Index"

.

Freeze Frame Data

The soft top control unit records the following vehicle condition at the time when the DTC is detected, and dis-
plays on CONSULT.

Diagnosis mode

Function Description

ECU Identification

The soft top control unit part number is displayed.

Self Diagnostic Result

Displays the diagnosis results judged by soft top control unit.

Freeze Frame Data

The soft top control unit records the vehicle condition at the time when 
the DTC is detected, and displays.

Data Monitor

The soft top control unit input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from soft 
top control unit.

CAN Diag Support Monitor

Monitors the reception status of CAN communication viewed from soft 
top control unit.

CONSULT display

Description

ROOF SW (OPEN)

ON/OFF

OPEN input state of roof open/close switch is displayed.

ROOF SW (CLOSE)

ON/OFF

CLOSE input state of roof open/close switch is displayed.

ROOF LATCHED LH

ON/OFF

Input state of roof striker sensor LH is displayed.

ROOF LATCHED RH

ON/OFF

Input state of roof striker sensor RH is displayed.

F/CENTER LOCK

ON/OFF

Input state of roof latch lock sensor is displayed.

R/RAIL RAISED LH

ON/OFF

Input state of roof status sensor LH is displayed.

R/RAIL LOWERED

ON/OFF

Input state of roof status sensor LH is displayed.

5BOW LOWERED

ON/OFF

Input state of 5th bow status sensor LH is displayed.

5BOW RAISED

ON/OFF

Input state of 5th bow status sensor RH is displayed.

S/LID OPEN LH

ON/OFF

Input state of storage lid status sensor LH is displayed.

STORAGE LID CLOSE LH

ON/OFF

Input state of storage lid status sensor LH is displayed.

SWITCH VALVE 1

ON/OFF

Output state to switching valve 1 is displayed.

SWITCH VALVE 2

ON/OFF

Output state to switching valve 2 is displayed.

SWITCH VALVE 3

ON/OFF

Output state to switching valve 3 is displayed.

SWITCH VALVE 4

ON/OFF

Output state to switching valve 4 is displayed.

PUMP OUT (LH)

ON/OFF

Right rotation output state to hydraulic motor is displayed.

PUMP OUT (RH)

ON/OFF

Left rotation output state to hydraulic motor is displayed.

OUTSIDE FLAP DEPLOYMENT

ON/OFF

Input state of outside flap sensor (deployment switch) is displayed.

OUTSIDE FLAP STORAGE

ON/OFF

Input state of outside flap sensor (storage switch) is displayed.

INSIDE FLAP DEPLOYMENT

ON/OFF

Input state of inside flap sensor (deployment switch) is displayed.

INSIDE FLAP STORAGE

ON/OFF

Input state of inside flap sensor (storage switch) is displayed.

S/LID LOCK OPEN SW

ON/OFF

Input state of storage lid lock assembly (open switch) is displayed.

S/LID LOCK CLOSE SW

ON/OFF

Input state of storage lid lock assembly (close switch) is displayed.

S/LID LOCK HALF LATCH SW

ON/OFF

Input state of storage lid lock assembly (half latch switch) is displayed.

Revision: 2012 October

2013 Murano CrossCabriolet

DEF-10

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

DATA MONITOR

STORAGE LID DOOR SWITCH

ON/OFF

Input state of storage lid lock assembly (storage lid door switch) is displayed.

OUT FLAP MOTOR RELAY 1

ON/OFF

Input state of outside flap motor relay 1 is displayed.

OUT FLAP MOTOR RELAY 2

ON/OFF

Input state of outside flap motor relay 2 is displayed.

INSIDE FLAP MOTOR RELAY 1

ON/OFF

Input state of inside flap motor relay 1 is displayed.

INSIDE FLAP MOTOR RELAY 2

ON/OFF

Input state of inside flap motor relay 2 is displayed.

STORAGE LID LOCK RELAY 1

ON/OFF

Input state of storage lid lock relay 1 is displayed.

STORAGE LID LOCK RELAY 2

ON/OFF

Input state of storage lid lock relay 2 is displayed.

TONNEAU BOARD SWITCH

ON/OFF

Input state of tonneau board switch is displayed.

TRUNK LID OP/CL STATUS

OPEN/CLOSE

Input state of trunk lid lock assembly (trunk room lamp switch) is displayed.

CONSULT display

Description

CONSULT display

Description

ROOF LATCHED LH

ON/OFF/NG

Input state of roof striker sensor LH is displayed.

ROOF LATCHED RH

ON/OFF/NG

Input state of roof striker sensor RH is displayed.

F/CENTER LOCK

ON/OFF/NG

Input state of roof latch lock sensor is displayed.

R/RAIL RAISED LH

ON/OFF/NG

Input state of roof status sensor LH is displayed.

R/RAIL LOWERED

ON/OFF/NG

Input state of roof status sensor LH is displayed.

5TH BOW LOWERED

ON/OFF/NG

Input state of 5th bow status sensor LH is displayed.

5TH BOW RAISED

ON/OFF/NG

Input state of 5th bow status sensor RH is displayed.

S/LID OPEN LH

ON/OFF/NG

Input state of storage lid status sensor LH is displayed.

STORAGE LID CLOSE LH

ON/OFF/NG

Input state of storage lid status sensor LH is displayed.

SWITCHING VALVE 1

ON/OFF/NG

Output state to switching valve 1 is displayed.

SWITCHING VALVE 2

ON/OFF/NG

Output state to switching valve 2 is displayed.

SWITCHING VALVE 3

ON/OFF/NG

Output state to switching valve 3 is displayed.

SWITCHING VALVE 4

ON/OFF/NG

Output state to switching valve 4 is displayed.

PUMP OUT (RH)

ON/OFF/NG

Right rotation output state to hydraulic motor is displayed.

PUMP OUT (LH)

ON/OFF/NG

Left rotation output state to hydraulic motor is displayed.

OUTSIDE FLAP DEPLOYMENT

ON/OFF/NG

Input state of outside flap sensor (deployment switch) is displayed.

OUTSIDE FLAP STORAGE

ON/OFF/NG

Input state of outside flap sensor (storage switch) is displayed.

INSIDE FLAP DEPLOYMENT

ON/OFF/NG

Input state of inside flap sensor (deployment switch) is displayed.

INSIDE FLAP STORAGE

ON/OFF/NG

Input state of inside flap sensor (storage switch) is displayed.

S/LID LOCK OPEN SW

ON/OFF/NG

Input state of storage lid lock assembly (open switch) is displayed.

S/LID LOCK CLOSE SW

ON/OFF/NG

Input state of storage lid lock assembly (close switch) is displayed.

S/LID LOCK HALF LATCH SW

ON/OFF/NG

Input state of storage lid lock assembly (half latch switch) is displayed.

STORAGE LID DOOR SWITCH

ON/OFF/NG

Input state of storage lid lock assembly (storage lid door switch) is displayed.

OUT FLAP MOTOR RELAY 1

ON/OFF/NG

Input state of outside flap motor relay 1 is displayed.

OUT FLAP MOTOR RELAY 2

ON/OFF/NG

Input state of outside flap motor relay 2 is displayed.

INSIDE FLAP MOTOR RELAY 1

ON/OFF/NG

Input state of inside flap motor relay 1 is displayed.

INSIDE FLAP MOTOR RELAY 2

ON/OFF/NG

Input state of inside flap motor relay 2 is displayed.

STORAGE LID LOCK RELAY 1

ON/OFF/NG

Input state of storage lid lock relay 1 is displayed.

STORAGE LID LOCK RELAY 2

ON/OFF/NG

Input state of storage lid lock relay 2 is displayed.

ROOF SW (OPEN)

ON/OFF

OPEN input state of roof open/close switch is displayed.

ROOF SW (CLOSE)

ON/OFF

CLOSE input state of roof open/close switch is displayed.

SHIFT R SIGNAL

ON/OFF

Input state of shift position (R position) is displayed.

Revision: 2012 October

2013 Murano CrossCabriolet

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

DEF-11

< SYSTEM DESCRIPTION >

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ACTIVE TEST

TRUNK OPEN REQUEST SIG

ON/OFF

Input state of trunk open request signal from BCM is displayed.

TRUNK LID OP/CL STATUS

OPEN/CLOSE

Input state of trunk lid lock assembly (trunk room lamp switch) is displayed.

THER PROTEC PUMP

OK/NG

Non-operation state of thermo protection (hydraulic pump) is displayed.

THER PROTEC RCU

OK/NG

Non-operation state of thermo protection (soft top control unit) is displayed.

PWR COND RCU

OK/NG

Diagnosis result of power supply (soft top control unit) is displayed.

PWR COND P/W

OK/NG

Diagnosis result of power supply (front power window) is displayed.

POWER COND REAR P/W

OK/NG

Diagnosis result of power supply (rear power window) is displayed.

LOCAL COMM 1

NG/SLEEP/NG

State of serial link 1 is displayed.

LOCAL COMM 2

NG/SLEEP/NG

State of serial link 2 is displayed.

REAR DEF OUT

OK/NG

Output state to rear window defogger is displayed.

TONNEAU BOARD SWITCH

ON/OFF

Input state of tonneau board switch is displayed.

P/W OP REQ SW SIG

ON/OFF

Input state of power window open signal from request switch is displayed.

PROHIBIT P/W UP

ON/OFF

Output state to power window operation prohibition signal is displayed.

IGN ON SIG (BCM)

ON/OFF

Receiving state of ignition ON signal from BCM is displayed.

RF OP REQ SW SIG

ON/OFF

Input state of soft top open signal from request switch is displayed.

CONSULT display

Description

CONSULT display

Operation/condition

Description

Item

Indication

ROOF LATCHED LH/RH

LOCK

Soft top is fully closed posi-
tion.

Roof lock assembly performs lock operation.

UNLOCK

Roof lock assembly performs unlock operation.

STORAGE LID

OPEN

Storage lid is neutral posi-
tion.

Storage lid performs open operation.

CLOSE

Storage lid performs close operation.

SOFT TOP SYSTEM

UP

• Storage lid is fully open 

position.

• Outside flap is fully 

closed position.

Soft top performs closed operation.

DOWN

Soft top performs open operation.

ROOF SYSTEM

OPEN

—

Soft top system performs open operation.

CLOSE

Soft top system performs closed operation.

5TH BOW SYSTEM

OPEN

• Roof lock is unlock posi-

tion.

• Storage lid is fully closed 

position.

1st bow and 5th bow performs fold operation.

CLOSE

1st bow and 5th bow performs spread operation.

HYDRAULIC PRESSURE 
RELEASE

ON

—

Switching valve performs OFF operation.

CAUTION:

An unintentional operation of soft top or storage lid may 
occur due to its own weight because oil pressure is not 
maintained when switching valve is released.
To prevent injury, be careful not to pinch hands.

TRUNK OPENER

ON

Soft top is fully open/closed 
position.

Trunk lid opener actuator performs unlock operation.

ROOF STATE OUTPUT 
(AUDIO)

ON

Roof lock is unlock position.

Full open position signal of roof is transmitted to audio unit.

OFF

Full closed position signal of roof is transmitted to audio unit.

POWER WINDOW (LH/
RH)

UP

• Soft top is fully open/

closed position.

• Power window system is 

initialized.

Power window (LH/RH) performs closed operation.

DOWN

Power window (LH/RH) performs open operation.

REAR WINDOW DEFOG-
GER

ON

Soft top is fully closed posi-
tion.

Rear window defogger performs ON operation.

OFF

Rear window defogger performs OFF operation.

Revision: 2012 October

2013 Murano CrossCabriolet

DEF-12

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

OUTSIDE FLAP MOTOR

DEPLOY

• Soft top is in the storage 

room.

• Storage lid is fully open 

position.

Outside flap motor performs deployment operation.

STORAGE

Outside flap motor performs storage operation.

INSIDE FLAP MOTOR

DEPLOY

Storage lid is fully open po-
sition.

Inside flap motor performs deployment operation.

STORAGE

Inside flap motor performs storage operation.

STORAGE LID CLOSURE 
MOTOR

OP POS

Storage lid is fully closed 
position.

Storage lid closure motor performs open operation.

CL POS

Storage lid closure motor performs closed operation.
NOTE:
Closure motor stops the closed operation and starts the neu-
tral operation after turning close switch ON.

CONSULT display

Operation/condition

Description

Item

Indication

Revision: 2012 October

2013 Murano CrossCabriolet

BCM

DEF-13

< ECU DIAGNOSIS INFORMATION >

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ECU DIAGNOSIS INFORMATION

BCM

List of ECU Reference

INFOID:0000000008462896

ECU

Reference

BCM

BCS-32, "Reference Value"

BCS-54, "Fail-safe"

BCS-54, "DTC Inspection Priority Chart"

BCS-55, "DTC Index"

Revision: 2012 October

2013 Murano CrossCabriolet

DEF-14

< ECU DIAGNOSIS INFORMATION >

SOFT TOP CONTROL UNIT

SOFT TOP CONTROL UNIT

List of ECU Reference

INFOID:0000000008462897

ECU

Reference

Soft top control unit

RF-45, "Reference Value"

RF-54, "Fail-safe"

RF-55, "DTC Inspection Priority Chart"

RF-57, "DTC Index"

Revision: 2012 October

2013 Murano CrossCabriolet

REAR WINDOW DEFOGGER SYSTEM

DEF-15

< WIRING DIAGRAM >

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WIRING DIAGRAM

REAR WINDOW DEFOGGER SYSTEM

Wiring Diagram

INFOID:0000000008462898

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JRLWC2945GB

Revision: 2012 October

2013 Murano CrossCabriolet

DEF-16

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000008462899

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: 2012 October

2013 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:0000000008462900

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:0000000008462901

1.

CHECK MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER SWITCH)

Check multifunction switch (rear window defogger switch) operate. 
Refer to 

AV-17, "On Board Diagnosis Function"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the malfunctioning parts. 

Revision: 2012 October

2013 Murano CrossCabriolet

DEF-18

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER RELAY

REAR WINDOW DEFOGGER RELAY

Component Function Check

INFOID:0000000008462902

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:0000000008462903

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: 2012 October

2013 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:0000000008462904

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: 2012 October

2013 Murano CrossCabriolet

DEF-20

< DTC/CIRCUIT DIAGNOSIS >

SOFT TOP CONTROL UNIT

SOFT TOP CONTROL UNIT

Component Function Check

INFOID:0000000008462905

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:0000000008462906

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: 2012 October

2013 Murano CrossCabriolet

SOFT TOP CONTROL UNIT

DEF-21

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

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: 2012 October

2013 Murano CrossCabriolet

DEF-22

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER

REAR WINDOW DEFOGGER

Component Function Check

INFOID:0000000008462907

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:0000000008462908

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: 2012 October

2013 Murano CrossCabriolet

REAR WINDOW DEFOGGER

DEF-23

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

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-229, "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:0000000008462909

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: 2012 October

2013 Murano CrossCabriolet