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Home >> GMC >> 1995 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis (Single Page) >> Body & Frame >> Mirrors - Power >> Testing >> Left Power Mirror Does Not Move Up And Down

Left Power Mirror Does Not Move Up And Down

  1. Disconnect left power mirror. Press switch in UP position. Connect test light between Red wire and ground. If test light illuminates, go to next step. If test light does not illuminate, check for open circuit in Red wire. If Red wire is okay, replace mirror switch.
  2. Press switch in DOWN position. Connect test light between Light Blue wire and ground. If test light illuminates, replace left power mirror. If test light does not illuminate, repair open circuit in Light Blue wire. If Light Blue wire is okay, replace mirror switch.
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