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Front Wiper/Washer Switch Test

  1. Disconnect electrical connector at front wiper motor. Using voltmeter or ohmmeter, check for voltage or continuity at designated terminals of electrical connector as specified. See Fig 1 .
  2. Check for voltage with ignition on. Check for continuity with ignition off. If switch is okay, remove wiper motor and test. Perform FRONT WIPER MOTOR TEST.
Fig 1: Testing Front Wiper/Washer Switch
G90H13570Courtesy of GENERAL MOTORS CORP.