Rear Wiper/Washer Switch

Rear Wiper/Washer Switch Test
Be certain to perform the diagnosis for the rear wiper system and/or rear washer system before testing the rear wiper and washer switch. (Refer to REAR WIPERS/WASHERS - DIAGNOSIS AND TESTING). Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIR- BAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

1. Disconnect and isolate the battery negative cable. Remove the accessory switch bezel from the instrument panel and disconnect the instrument panel wire harness connector for the rear wiper and washer switch from the switch connector receptacle.

Fig.17 Rear Wiper & 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 & 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 open or shorted rear wiper and/or rear washer system circuits as required.