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Home >> Buick >> 1992 >> Roadmaster Base >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System/Washer System - Liftgate >> Testing >> Test D (Wiper Motor Module - Wiper/Washer Switch) >> Caprice, Custom Cruiser & Roadmaster

Caprice, Custom Cruiser & Roadmaster

  1. Open rear window. If wiper turns off, check for short in Orange wire between rear wiper/washer switch connector and rear window interlock switch connector. If no short is found, replace rear wiper/washer switch.
  2. If wiper does not turn off, check for short in Gray wire between interlock switch connector and rear wiper motor module connector terminal "C". If no short is found, replace rear wiper motor module.
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