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Wipers High Speed Inoperative

WARNING: This page is about a different car, the 1997 Pontiac Grand Prix, 1997 Buick Regal, and 1997 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch to RUN position. Turn wiper switch to high position. If wipers operate at any speed, go to next step. If wipers do not operate at all, replace wiper switch.
  2. Using a test light, backprobe between ground and Purple wire at wiper switch 48-pin connector. If test light is on, go to next step. If test light is off, check for poor connector or open in pigtail to wiper switch. Repair as necessary. If no problem is found, replace wiper switch.
  3. Disconnect wiper motor connector. Connect test light between ground and Purple wire at wiper motor connector. If test light is off, repair open in Purple wire between wiper motor connector and wiper switch connector. If test light is on, check for poor connection at wiper motor. Repair as necessary. If no problem is found, replace wiper motor.
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