Nissan Murano Z51. Manual - part 1539

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< DTC/CIRCUIT DIAGNOSIS >

FRONT WIPER MOTOR GROUND CIRCUIT

FRONT WIPER MOTOR GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000005516019

1.

CHECK FRONT WIPER MOTOR (GROUND) OPEN CIRCUIT 

1.

Turn the ignition switch OFF.

2.

Disconnect front wiper motor connector.

3.

Check continuity between front wiper motor harness connector and ground.

Does continuity exist?

YES

>> Front wiper motor ground circuit is normal.

NO

>> Repair the harness or connector.

Front wiper motor

Ground

Continuity

Connector

Terminal

E12

2

Existed

WASHER SWITCH

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C

D

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F

G

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A

B

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WASHER SWITCH

Description

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• Washer switch is integrated with combination switch.
• Combination switch switches polarity between front washer operating and rear washer operating to supply

power to the washer pump on ground.

Component Inspection

INFOID:0000000005516021

1.

CHECK WIPER SWITCH

1.

Turn the ignition switch OFF.

2.

Disconnect combination switch connector.

3.

Check continuity between the combination switch terminals.

Does continuity exist?

YES

>> Wiper and washer switch is normal.

NO

>> Replace combination switch (Wiper and washer switch).

JPLIA0163GB

A

:  Terminal  4

B

:  Terminal  6

C

:  Terminal  3

D

:  Terminal  1

JPLIA0164GB

Combination switch

Condition

Continuity

Terminal

1

6

Front washer switch ON

Existed

3

4

1

4

Rear washer switch ON

3

6

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RAIN SENSOR

RAIN SENSOR

Description

INFOID:0000000005516022

Rain sensor judges a wiping speed for front wiper by rain condition
and the vehicle conditions. And it transmits the wiping speed request
signal to the BCM via the rain sensor serial link.

Component Function Check

INFOID:0000000005516023

1.

CHECK FRONT WIPER AUTO OPERATION

1.

Clean rain sensor detection area of windshield fully.

2.

When the front wiper switch is turned to INT/AUTO position, front wiper operates once regardless of a
rainy condition.

Is front wiper (AUTO) operation normally?

YES

>> Rain sensor circuit is normal.

NO

>> Refer to 

WW-36, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005516024

1.

CHECK RAIN SENSOR FUSE

1.

Turn the ignition switch OFF.

2.

Check that the rain sensor 10 A fuse (#6) is not fusing.

Is the fuse fusing?

YES

>> Replace the fuse after repairing the applicable circuit.

NO

>> GO TO 2.

2.

CHECK RAIN SENSOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect rain sensor connector.

3.

Turn ignition switch ON.

4.

Check voltage between rain sensor harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK RAIN SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between rain sensor harness connector and ground.

JSLIA0093ZZ

Terminal

Voltage (Approx.)

(+)

(

−

)

Rain sensor connector

Terminal

R23

1

Ground Battery 

voltage

RAIN SENSOR

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Does continuity exist?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK RAIN SENSOR SIGNAL

1.

Connect rain sensor connector.

2.

Turn ignition switch ON.

3.

Check signal between BCM harness connector and ground with oscilloscope.

Is the measurement value normal?

YES

>> Replace rain sensor. Refer to 

WW-136, "Exploded View"

.

NO

>> GO TO 5.

5.

CHECK RAIN SENSOR SIGNAL CIRCUIT FOR OPEN

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and rain sensor harness connector.

Does continuity exist?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK RAIN SENSOR SIGNAL CIRCUIT FOR SHORT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair or replace harness.

NO

>> Replace BCM. Refer to 

BCS-95, "Exploded View"

.

Rain sensor

Ground

Continuity

Connector

Terminal

R23

3

Existed

Terminal

Condition

Signal

(Reference value)

(+)

(

−

)

BCM

connector

Terminal

M123

112

Ground 

Ignition 

switch ON

Approx. 8.7V

JPMIA0156GB

BCM

Rain sensor

Continuity

Connector

Terminal

Connector

Terminal

M123

112

R23

2

Existed

BCM

Ground

Continuity

Connector

Terminal

M123

112

Not existed