Wiper Switch: Testing and Inspection

Fig. 4 Wiper Switch Continuity Test:

Fig. 5 Testing wiper switch continuity. 1980 Bronco & F-100---350:

Fig. 5 Wiper Switch Continuity Test:

1. Check continuity between switch terminals, Figs. 4 through 6.
2. To detect marginal operation of switch, rotate or slide switch control knob while each reading is being taken.
3. If switch does not show continuity or if poor continuity exists at any switch position, replace switch.