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Home >> Isuzu >> 1998 >> Trooper S, Standard >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Instrument Panels >> Symptom Tests >> Coolant Temperature Gauge Inoperative

Coolant Temperature Gauge Inoperative

  1. Verify that Engine Coolant Temperature (ECT) unit is connected properly. Repair if necessary. Go to next step
  2. Disconnect ECT connector. Connect a 3.4 watt bulb between ECT connector and ground. Turn ignition switch to ON position. If coolant temperature gauge moves after about 10 seconds, replace ECT unit. If gauge does not move after about 10 seconds, go to next step.
  3. Use DVOM and check for continuity in Yellow/Black wire between instrument panel connector I-10 terminal No. 9 (terminal No. 4 on "S" models) and ECT unit connector. See Figure . Repair if necessary. If continuity is indicated, replace instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION.
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