Test F: Wipers Continue To Operate When Switch Is Turned Off
WARNING: This page is about a different car, the 1997 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.
- Ensure Wiper Control Module (WCM) and wiper motor connectors are firmly seated. If no problem is found, go to next step. If problem is found, repair as necessary and retest system.
- Disconnect wiper motor harness connector. Turn wiper switch off. Measure resistance between Black/Pink and Dark Blue/Orange wire terminals at wiper motor connector. Measure resistance between Yellow/Red and Red wire terminals at wiper motor connector. If resistance is greater than 5 ohms at either location go to next step. If all resistances are 5 ohms or less, replace wiper motor and retest system.
- Disconnect WCM connector. Measure resistance of Black/Pink, Dark Blue/Orange, Yellow/Red and Red wires between WCM and wiper motor connectors. If all resistances are 5 ohms or less, go to next step. If resistance is greater than 5 ohms at any circuit(s), repair open in wire(s) and retest system.
- Ensure wiper switch is off. Measure resistance between Orange and Brown/White wires at WCM connector. If resistance is not 45-50 k/ohms, go to next step. If resistance is 45-50 k/ohms, replace WCM and retest system.
- Disconnect multifunction switch 7-pin connector. Ensure wiper switch is off. Measure resistance between Brown/White and Orange wires at harness connector. If resistance is 45-50 k/ohms, repair open in Brown/White and Orange wire(s). If resistance is not as specified, replace wiper switch and retest system.