Windshield Wipers Inoperative
- With the ignition switch in RUN, select wiper switch LO or HI position. Inspect circuit breaker No. 24. Go to step 2) if circuit breaker is okay. If circuit breaker is defective, check for short and replace circuit breaker. Ensure ground to wiper motor frame is provided. Repair any ground faults as required.
- Check battery side of circuit breaker. If battery voltage is present, circuit is okay. Go to step 3). If battery voltage is not present, repair open circuit between ignition switch and fuse block.
- Check voltage at terminal "E" of wiper switch connector. See WIRING DIAGRAM and Figure . If battery voltage is present, circuit is okay. Go to step 4). If battery voltage is not present, repair open circuit between circuit breaker No. 24 and terminal "A".
- Check voltage at terminal "B" of wiper switch connector, with wiper switch in LO position. If battery voltage is present, circuit is okay. 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, circuit is okay. 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. If circuit is good, go to WIPERS INOPERATIVE IN INTERMITTENT MODE, OK 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".