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Home >> Oldsmobile >> 1993 >> Cutlass Supreme Base, 3.4 X >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Testing >> Low Coolant Indicator Tests >> Does Not Light Test

Does Not Light Test

  1. Turn ignition switch to RUN position. Disconnect coolant level switch. Use a voltmeter to measure voltage between Yellow/Black wire and ground, and between Black/White and Yellow/Black wires.
  2. If battery voltage is present, replace coolant level switch. If battery voltage is not present, check Yellow/Black and/or Black/White wires for an open circuit. If wires are okay, replace instrument cluster.
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