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Wipers Inoperative At Low Speed

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.
  1. Turn ignition on. Set wiper switch for high speed operation. If wipers do not operate at high speed, go to next step. If wipers operate at high speed, see WINDSHIELD WIPERS INOPERATIVE  .
  2. Turn ignition on. Set wiper switch for low speed operation. Disconnect wiper motor connector. Check for battery voltage between Dark Blue/Orange wire and Black wire at wiper motor harness connector. If battery voltage exists, go to step 6). If battery voltage does not exist, go to next step.
  3. Check for battery voltage at White wire terminal at Integrated Control Module (ICM) 8-pin connector. If battery voltage does not exist, go to next step. If battery voltage exists, repair open White wire and retest system.
  4. Check for battery voltage at White wire terminal and Dark Blue/Orange wire terminal of ICM 8-pin connector. If battery voltage does not exist, go to next step. If battery voltage exists, repair open Dark Blue/Orange wire and retest system.
  5. Disconnect ICM 12-pin connector. Measure resistance between Brown/White wire and Orange wire terminals of ICM connector. If resistance is 3.5-4.5 ohms, replace ICM. If resistance is not as specified, check wiper switch. See WIPER SWITCH TEST  . Replace switch if faulty. If switch is good, repair open circuit(s) between ICM and wiper switch. Retest system after repairs.
  6. Disconnect wiper switch connector. Measure resistance between Brown/White wire and Orange wire terminals of wiper switch connector. If resistance is 3.5-4.5 ohms, replace wiper motor. If resistance is not as specified, replace wiper switch. Retest system after repairs.
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