Windshield Wipers Inoperative
- With ignition switch in RUN, select wiper switch LO or HI position. Inspect fuse No. 3 in fuse block. If fuse is okay, go to step 2). If fuse is defective, check for short and replace fuse. Ensure ground to wiper motor frame is provided. Repair any ground faults as required.
- Check battery side of fuse. Go to step 3) if battery voltage is present. If battery voltage is not present, repair open circuit between ignition switch and fuse block.
- Disconnect wiper/washer switch connector from steering column connector, located at base of column. Use an ohmmeter to check continuity between terminals. See Fig 1
. See WIPER/WASHER SWITCH CONTINUITY
. Check voltage at terminal "E" of wiper switch connector. If battery voltage is present go to step 4). If battery voltage is not present, repair open circuit between fuse No. 3 and terminal "A".WIPER/WASHER SWITCH CONTINUITY
Switch Position Continuity OFF A & B DELAY E & C, E & G, A & B LOW E & B HIGH E & D WASH E & F - Check voltage at terminal "B" of wiper switch connector, with wiper switch in LO position. If battery voltage is present go to step 5). If battery voltage is not present, replace wiper switch.
- Check voltage at terminal "D" of wiper switch connector, with wiper switch in HI position. If battery voltage is present go to step 6). If battery voltage is not present, replace wiper switch.
- Connect a jumper cable from terminal "D" of wiper motor to ground. If wiper motor runs, check for an open circuit between terminal "D" of wiper motor and terminal "L" of wiper module. See Figure . If circuit is good, go to WINDSHIELD WIPERS INOPERATIVE IN INT MODE, OKAY IN HI & LO. If wiper does not run, go to step 7).
- Check for battery voltage at terminal "F" of wiper motor connector with wiper switch in LO position. If battery voltage is present, replace wiper motor. If battery voltage is not present, repair open circuit between wiper switch and terminal "F".
- Check battery voltage at terminal "E" of wiper motor connector, when wiper switch is in HI position. If battery voltage is present, replace wiper motor. If battery voltage is not present, repair open circuit between wiper switch and terminal "E".