Wrangler L4-2.5L VIN P (1999)
Wiper Switch: Testing and Inspection
Wiper Switch Test
Perform the diagnosis for the front wiper system and/or washer system before testing the front wiper and washer switch.
WARNING: ON VEHICLES EQUIPPED WITH AIR-BAGS, REFER TO AIRBAG AND SEAT BELTS/AIR BAGS BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE.
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.
2. Remove the front wiper and 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.