Wipers Run With Switch Off
WARNING: This page is about a different car, the 1995 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect wiper motor and WCM connectors. WCM is located at fuse block. Repair connections as necessary. If connections are okay, go to next step.
- Unplug wiper motor. Set wiper switch to OFF position. At harness connector, check continuity between Black/Pink wire and Dark Blue/Orange wire terminals, and between Yellow/Red wire and Black wire terminals. If continuity does not exist for either pair of wires, go to next step. If wires are okay, replace wiper motor.
- Check continuity of Black/Pink wire, Yellow/Red wire, and Dark Blue/Orange wire between wiper motor and WCM. Check Black wire for continuity to ground. Repair open wire(s) as necessary. If wires are okay, go to next step.
- Measure resistance between Orange wire and Brown/White wire terminals of WCM connector. If resistance is 45,000-50,000 ohms, replace WCM. If resistance is not as specified, test wiper switch. See WIPER SWITCH TEST . If wiper switch is okay, check for open Orange wire or Brown/White wire between wiper switch and WCM.