Wipers Inoperative At Interval Setting
WARNING: This page is about a different car, the 1997 Mercury Cougar and 1997 Ford Thunderbird. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition on. Set wiper switch to minimum interval operation. If wipers cycle, go to next step. If wipers do not cycle, go to WIPERS INOPERATIVE AT LOW SPEED .
- Disconnect Integrated Control Module (ICM) 12-pin connector. ICM is located at primary junction block. Measure resistance between Brown/White wire and Orange wire terminals of ICM harness connector. If resistance is not 10,500-12,000 ohms, go to next step. If resistance is as specified, go to step 4).
- Disconnect wiper switch connector. Measure resistance between Brown/White wire and Orange wire terminals of harness connector. If resistance is 10,500-12,000 ohms, repair open wire(s) between ICM and wiper switch. If resistance is not as specified, test wiper switch. See WIPER SWITCH TEST . Replace switch if faulty.
- Measure resistance between Brown/White wire and Dark Blue/White wire terminals of ICM 12-pin connector while rotating interval control. If resistance is 3,300 ohms to 103,300 ohms, replace ICM. If resistance is not as specified, go to next step.
- Disconnect wiper switch connector. Measure resistance between Brown/White wire and Dark Blue/White wire terminals of connector while rotating interval control. If resistance changes from 3,300 ohms to 103,300 ohms, repair open wiring between wiper switch and ICM. If resistance does not change as specified, test wiper switch. See WIPER SWITCH TEST . Replace wiper switch if faulty.