Nissan Xterra. Manual - part 729

WASHER SWITCH

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WASHER SWITCH

Description

INFOID:0000000009484702

• Washer switch is integrated with combination switch.

• Combination switch (wiper and washer switch) switches polarity between front washer operating and rear

washer operating to supply power and ground to the front and rear washer motor.

Component Inspection

INFOID:0000000009484703

Regarding Wiring Diagram information, refer to 

WW-50, "Wiring Diagram"

.

1.

 CHECK FRONT WASHER SWITCH

1. Turn the ignition switch OFF.

2. Disconnect combination switch (wiper and washer switch).

3. Check continuity between the combination switch (wiper and washer switch) terminals.

Does continuity exist?

YES

>> GO TO 2.

NO

>> Replace combination switch (wiper and washer switch). Refer to 

WW-79, "Removal and Installa-

tion"

.

2.

 CHECK REAR WASHER SWITCH

1. Check continuity between the combination switch (wiper and washer switch) terminals.

ALLIA0350GB

A: Terminal 14
B: Terminal 12
C: Terminal 13

D: Terminal 11

JPLIA0164GB

Combination switch (wip-

er and washer switch)

Condition

Continuity

Terminal

11

12

Front washer switch ON

Yes

13

14

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WASHER SWITCH

Does continuity exist?

YES

>> Wiper and washer switch is normal.

NO

>> Replace combination switch (wiper and washer switch). Refer to 

WW-79, "Removal and Installa-

tion"

.

A: Terminal 14
B: Terminal 12
C: Terminal 13

D: Terminal 11

JPLIA0164GB

Combination switch (wip-

er and washer switch)

Condition

Continuity

Terminal

11

14

Rear washer switch ON

Yes

12

13

WASHER MOTOR CIRCUIT

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WASHER MOTOR CIRCUIT

Diagnosis Procedure

INFOID:0000000009484704

Regarding Wiring Diagram information, refer to 

WW-50, "Wiring Diagram"

 or 

WW-55, "Wiring Diagram"

.

1.

 CHECK FRONT AND REAR WASHER MOTOR FUSE

1. Turn the ignition switch OFF.

2. Check that the following fuse is not blown.

Is the fuse blown?

YES

>> Replace the fuse after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK WIPER AND WASHER SWITCH INPUT VOLTAGE

1. Disconnect combination switch (wiper and washer switch).

2. Turn the ignition switch ON.

3. Check voltage between combination switch (wiper and washer switch) harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK WIPER AND WASHER SWITCH GOURND CIRCUIT

Check continuity between combination switch (wiper and washer switch) harness connector and ground.

Does continuity exist?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

 CHECK WIPER AND WASHER SWITCH

Check wiper and washer switch. Refer to 

WW-25, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Replace wiper and washer switch. Refer to 

WW-79, "Removal and Installation"

.

5.

 CHECK FRONT AND REAR WASHER MOTOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Connect combination switch (wiper and washer switch).

Unit

Location

Fuse No.

Capacity

Front and rear washer mo-
tor

Fuse block (J/B)

15

10A

Terminals

Voltage 

(Approx.)

(+)

(-)

Combination switch (wiper and 

washer switch)

Ground

Connector

Terminal

M28

14

Battery voltage

Combination switch (wiper and 

washer switch)

Ground

Continuity

Connector

Terminal

M28

12

Yes

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WASHER MOTOR CIRCUIT

3. Disconnect front and rear washer motor.

4. Turn ignition switch ON.

5. Check voltage between front and rear washer motor harness connector and ground.

Is the measurement value normal?

YES

>> Replace front and rear washer motor. Refer to 

WW-78, "Removal and Installation"

.

NO

>> Repair or replace harness.

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(-)

Front and 

rear wash-

er motor

Terminal

E105

1

2

Washer 

switch

Front: ON

Battery voltage

2

1

Rear:  ON