Windshield Washer Motor: Testing and Inspection

Washer Motor Circuit Check

Regarding Wiring Diagram information, refer to [Front Wiper and Washer System: Wiring Diagram] [1][2]Electrical Diagrams.

1. CHECK FRONT 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 GROUND 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 [Washer Switch Circuit Check] Testing and Inspection.

Is the inspection result normal?
YES
GO TO 5
NO
Replace wiper and washer switch. Refer to [Wiper and Washer Switch: Removal and Installation].

5. CHECK FRONT WASHER MOTOR POWER SUPPLY

1 Turn ignition switch OFF.
2 Connect combination switch (wiper and washer switch).
3 Disconnect front washer motor.
4 Turn ignition switch ON.
5 Check voltage between front washer motor harness connector and ground.






Is the measurement value normal?
YES
Replace front washer motor. Refer to [Washer Motor: Removal and Installation].
NO
Repair or replace harness.