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Home >> Chevrolet >> 1995 >> Corvette Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Testing >> Instrument Cluster & Panel Displays >> Coolant Temperature Gauge Appears Inaccurate

Coolant Temperature Gauge Appears Inaccurate

  1. Turn ignition on, engine off. Disconnect gauge coolant temperature sensor connector. Using Signal Generator/Instrument Panel Tester (J-33431-B), connect Red clip lead to Dark Green wire of gauge coolant temperature sensor connector. Set tester resistance to 1400 ohms, then 55 ohms. Coolant temperature gauge should indicate cold, then hot.
  2. If readings are as specified, replace gauge coolant temperature sensor. If temperature readings are not as specified, check for poor connections or high resistance in Dark Green wire between instrument cluster and gauge coolant temperature sensor. If Dark Green wire is okay, replace instrument cluster.
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