Wiper and Washer Systems: Testing and Inspection

Fig. 1 Front wiper wiring circuit:

Fig. 2 Rear wiper wiring circuit:

1. Blown wiper fuse.
2. Defective wiper motor.
3. Defective wiper control switch.
4. Faulty ground or wiring, Figs. 1 and 2.
5. Clogged washer nozzle or hose.
6. Defective washer motor.