Windshield Washer Switch: Testing and Inspection

WIPER / WASHER SWITCH INSPECTION

Combination Switch / Front Wiper And Washer Switch Continuity:

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

Combination Switch / Rear Wiper And Washer Switch Continuity:

2. INSPECT REAR WIPER AND WASHER SWITCH CONTINUITY

If continuity is not as specified, replace the switch.







3. INSPECT INTERMITTENT OPERATION
a. Turn the wiper switch to the INT position.
b. Variable Type:
Turn the intermittent time control switch to the FAST position.

c. Connect the positive (+) lead from the battery to terminal B18 and the negative (-) lead to terminal B16.
d. Connect the positive (+) lead from the voltmeter to terminal B7 and the negative (-) lead to terminal B16, and check that the meter needle indicates battery positive voltage.










e. After connecting terminal B4 to terminal B18, connect terminal B4 to terminal B16. Then, check that the voltage rises from 0 volts to battery positive voltage within the times as shown in the table.

If operation is not as specified, replace the switch.










4. INSPECT WASHER LINKED WIPER OPERATION
a. Connect the positive (+) lead from the battery to terminal B18 and the negative (-) lead to terminal B16.
b. Connect the positive (+) lead from the voltmeter to terminal B7 and the negative (-) lead to terminal B 16.
c. Push in the washer switch. Check that the voltage changes as shown in the table.

If operation is not as specified, replace the switch.