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Engine Coolant Temperature (ECT) Meter Symptom Diagnosis

ENGINE COOLANT TEMPERATURE METER SYMPTOM DIAGNOSIS REFERENCE

Condition Possible Cause Action
Engine coolant temperature (ECT) meter shows no operation or incorrect operation  Circuit fuse blown Replace fuse and check for short circuit  .
ECT sensor faulty Check ECT sensor referring to ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION .
Wiring or grounding faulty Repair circuit  .
Combination meter faulty Replace combination meter  .
ECM faulty Replace after making sure that none of above parts is faulty  .
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