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Window Switch Does Not Illuminate

  1. Put headlight and panel dimmer switch in PARK position. Disconnect suspect window switch. Connect test light between Brown wire terminal and ground. See WIRING DIAGRAMS  . If test light illuminates, go to next step. If test light does not illuminate, repair open in Brown wire.
  2. Connect test light between Brown and Black wire terminals. If test light does not illuminate, repair open in Black wire. If test light illuminates, replace suspect switch.