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Home >> Buick >> 1987 >> Regal Base, 3.8 7 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Testing >> Instrument Cluster Power Input Test

Instrument Cluster Power Input Test

  1. Disconnect instrument cluster C2 connector. Place ignition switch in "RUN" position. Connect test light between Pink/Black wire and ground. If test light comes on, go to next step. If not, check Pink/Black wire for an open circuit.
  2. Connect test light between Pink/Black wire and Black/White wire. If test light comes on, replace instrument cluster. If not, check Black/White wire for an open circuit.