Nissan Murano. Manual - part 1493

WW-40

< DTC/CIRCUIT DIAGNOSIS >

REAR WIPER MOTOR CIRCUIT

REAR WIPER MOTOR CIRCUIT

Component Function Check

INFOID:0000000009719742

1.

CHECK REAR WIPER ON OPERATION

CONSULT ACTIVE TEST

1.

Select “RR WIPER” of BCM active test item.

2.

With operating the test item, check rear wiper operation.

Is rear wiper operation normally?

YES

>> Rear wiper motor circuit is normal.

NO

>> Refer to 

WW-40, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009719743

1.

CHECK REAR WIPER MOTOR OUTPUT VOLTAGE

CONSULT ACTIVE TEST

1.

Turn rear wiper switch OFF, and wait for 1 minute or more. 

2.

Turn the ignition switch OFF.

3.

Disconnect rear wiper motor connector.

4.

Turn the ignition switch ON.

5.

Select “RR WIPER” of BCM active test item.

6.

With operating the test item, check voltage between BCM harness connector and ground.

*: When “REAR WIPER” is “On” for 5 seconds or more during active test of CONSULT, BCM stops the power
supply according to rear wiper motor protection function. To perform the check again, turn “REAR WIPER” to
“Off”, wait for 1 minute or more, and then perform the check.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK REAR WIPER MOTOR SHORT CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair the harness or connector.

NO

>> Replace BCM. Refer to 

BCS-98, "Exploded View"

.

3.

CHECK REAR WIPER MOTOR OPEN CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect BCM connector.

On

: Rear wiper ON operation

Off

: Stop the rear wiper.

Terminals

Test item

Voltage (Approx.)

(+)

(

−

)

BCM

Ground

REAR WIPER

Connector

Terminal

M120

26

On

Battery voltage

(5 seconds)*

BCM

Ground

Continuity

Connector

Terminal

M120

26

Not existed

REAR WIPER MOTOR CIRCUIT

WW-41

< DTC/CIRCUIT DIAGNOSIS >

C

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A

B

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3.

Check continuity between BCM harness connector and rear wiper motor harness connector.

Does continuity exist?

YES

>> GO TO 4.

NO

>> Repair the harness or connector.

4.

CHECK REAR WIPER MOTOR GROUND OPEN CIRCUIT

Check continuity between rear wiper motor harness connector and ground.

Does continuity exist?

YES

>> Replace rear wiper motor.

NO

>> Repair the harness or connector.

BCM

Rear wiper motor

Continuity

Connector

Terminal

Connector

Terminal

M120

26

D193

1

Existed

Rear wiper motor

Ground

Continuity

Connector

Terminal

D193

3

Existed

WW-42

< DTC/CIRCUIT DIAGNOSIS >

REAR WIPER STOP POSITION SIGNAL CIRCUIT

REAR WIPER STOP POSITION SIGNAL CIRCUIT

Component Function Check

INFOID:0000000009719744

1.

CHECK REAR WIPER STOP POSITION SIGNAL

CONSULT DATA MONITOR

1.

Select “WIPER” of BCM data monitor item.

2.

Operate the rear wiper.

3.

Check that “RR WIPER STOP” changes to “ON” and “OFF” linked with the wiper operation.

Is the status of item normal?

YES

>> Rear wiper stop position signal circuit is normal.

NO

>> Refer to 

WW-42, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009719745

1.

CHECK REAR WIPER MOTOR OUTPUT VOLTAGE

1.

Turn the ignition switch OFF.

2.

Disconnect rear wiper motor connector.

3.

Turn the ignition switch ON.

4.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK REAR WIPER MOTOR SHORT CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair the harness or connector.

NO

>> Replace BCM. Refer to 

BCS-98, "Exploded View"

.

3.

CHECK REAR WIPER MOTOR OPEN CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check continuity between BCM harness connector and rear wiper motor harness connector.

Monitor item

Condition

Monitor status

RR WIPER STOP

Rear wiper 
motor

Stop position

On

Except stop position

Off

Terminals

Voltage (Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M121

65

Battery voltage

BCM

Ground

Continuity

Connector

Terminal

M121

65

Not existed

REAR WIPER STOP POSITION SIGNAL CIRCUIT

WW-43

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

WW

N

O

P

Does continuity exist?

YES

>> Replace rear wiper motor.

NO

>> Repair the harness or connector.

BCM Rear 

wiper 

motor

Continuity

Connector

Terminal

Connector

Terminal

M121

65

D193

4

Existed