Wiper Switch: Testing and Inspection

FRONT
Perform the diagnosis for the front wiper system and/or washer system as described before testing the front wiper and washer switch.

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIRBAGS AND SEAT BELTS/AIRBAGS BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

1. Disconnect and isolate the battery negative cable.
2. Remove the front wiper arid washer switch from the steering column and unplug the wire harness connector from the switch.

Windshield Wiper Switch and Washer Switch Continuity:

3. Using an ohmmeter, perform the switch continuity checks at the switch terminals as shown in the Windshield Wiper Switch and Washer Switch Continuity chart.
4. If the switch fails any of the continuity checks replace the faulty switch. If the switch is OK, repair the wiper system and/or washer system wire harness circuits as required.

REAR
Perform the diagnosis for the rear wiper system and/or washer system as described before testing the rear wiper and washer switch.

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIRBAGS AND SEAT BELTS/AIRBAGS BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

1. Remove the accessory switch bezel from the instrument panel and unplug the rear wiper and washer switch wire harness connector.

Rear Wiper Switch and Washer Switch Continuity:

2. Using an ohmmeter, check the rear wiper and washer switch continuity at the switch terminals as shown in the Rear Wiper Switch and Washer Switch Continuity chart.
3. If the switch fails any of the continuity checks,replace the faulty switch. If the switch is OK, repair the rear wiper system and/or washer system wire harness circuits as required.