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Home >> Chevrolet >> 1992 >> Forward Control 5.7 K, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 96 (Wiper System/Washer System - G Series Vans) >> Testing >> Wipers Do Not Operate In Hi

Wipers Do Not Operate In Hi

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1992 GMC Vandura Special, 1992 GMC Vandura, 1992 GMC Rally Camper Special, 1992 GMC Rally, and 1992 GMC Magnavan. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect wiper motor/module connector. Turn ignition switch to ACC position and wiper switch in HI position. Connect a test light between ground and Purple wire of wiper motor/module harness connector. If test light does not glow, go to next step. If test light glows, repair/replace wiper motor/module.
  2. Connect test light between ground and Purple wire of wiper switch connector located under instrument panel, to left of steering column. If test light does not glow, replace wiper switch. If test light glows, repair open in Purple wire between wiper switch connector and wiper motor/module connector. See Figure .