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Home >> Pontiac >> 1995 >> Grand Prix GT >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Testing >> Digital Speedometer Segments Do Not Illuminate

Digital Speedometer Segments Do Not Illuminate

  1. Turn ignition on. Backprobe test light between digital speedometer module connector terminal "F" (Brown wire) and ground. If test light does not light, repair open circuit in Brown wire.
  2. If test light lights, backprobe test light between digital speedometer module connector terminals "F" (Brown wire) and "A" (Black wire). If test light lights, check for poor connections. If connections are okay, replace instrument cluster. If test light does not light, repair open circuit in Black wire.