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Home >> Buick >> 1989 >> Reatta >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Testing & Diagnosis >> Tachometer Does Not Display Or Displays Intermittently >> Display Indicates "LO" With Switch Released

Display Indicates "LO" With Switch Released

  1. If display indicates "LO" with tachometer switch released, remove right switch assembly. If display indicates "HI", replace right switch assembly.
  2. If display indicates "LO", check White wire for a short to ground. If White wire is okay, replace IPC.