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Home >> Chevrolet >> 2000 >> Metro Base, 2D Hatchback >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Analog >> Symptom Tests >> ECT Gauge Is Not Accurate

ECT Gauge Is Not Accurate

  1. Disconnect ECT sensor connector. Using Connector Test Adapter Kit (J-35616-A), connect Red lead of Tester (J-33431-C) to ECT sensor connector and Black lead to ground.
  2. Turn ignition switch to ON position. Set tester resistance dial to 136 ohms, 52 ohms, and 10 ohms. If ECT gauge does not indicate "C" at 136 ohms, midpoint between "C" and "H" at 52 ohms, and "H" at 10 ohms, go to next step. If ECT gauge indicates as specified, replace ECT sensor.
  3. Turn ignition switch to OFF position. Disconnect tester. Disconnect instrument cluster Gray 16-pin connector. Using an ohmmeter, measure resistance of Yellow/White wire between instrument cluster Gray 16-pin connector terminal No. 6 and ECT sensor connector. If resistance is 5 ohms or more, repair open in Yellow/White wire. If resistance is less than 5 ohms, check for high resistance in instrument cluster printed circuit. Repair or replace instrument cluster printed circuit as necessary. If instrument cluster printed circuit is okay, replace ECT gauge.
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