Windshield Washer Switch: Testing and Inspection

LOCATION

INSPECTION







1. INSPECT FRONT WIPER AND WASHER SWITCH CONTINUITY
If continuity is not as specified, replace the switch.








2. INSPECT WASHER LINKED OPERATION
a. Connect the positive (+) lead from the battery to terminal 16 and the negative (-) lead to terminal 2.
b. Connect the positive (+) lead from the voltmeter to terminal 7 and the negative (-) lead to terminal 2.
c. Push in the washer switch, and check that the voltage changes as shown in the table.
If operation is not as specified, replace the wiper and washer switch.







3. INSPECT WIPER SWITCH CIRCUIT
Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown.
If circuit is not as specified, inspect the circuits connected to other parts.




4. INSPECT WASHER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, check that the motor operates.

NOTE: These tests must be performed quickly (within 20 seconds) to prevent the coil from burning out.

If operation is not as specified, replace the motor.







5. INSPECT WASHER MOTOR CIRCUIT
Disconnect the connector from the washer motor and inspect the connector on harness side, as shown.
If circuit is not as specified, inspect wire harness, power source or wiper switch.