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Home >> Cadillac >> 2000 >> DeVille DTS >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Symptom Tests >> Engine Coolant Temperature Indicator Always On/Inoperative

Engine Coolant Temperature Indicator Always On/Inoperative

  1. If cooling system diagnostic system check has been performed, go to next step. If cooling system diagnostic system check has not been performed, go to COOLING SYSTEM DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Check operation of engine coolant temperature gauge. If engine coolant temperature gauge is accurate, go to next step. If engine coolant temperature gauge is not accurate, go to ENGINE COOLANT TEMPERATURE GAUGE INACCURATE OR INOPERATIVE  .
  3. Turn ignition off and back on. This will activate Instrument Panel Cluster (IPC) bulb check. Observe engine coolant temperature indicator during the bulb check. If engine coolant temperature indicator illuminates during bulb check and then turns off, check for intermittent connections or faulty circuits. If engine coolant temperature indicator does not illuminate during bulb check and then turn off, go to next step.
  4. Replace IPC. See INSTRUMENT PANEL CLUSTER  under REMOVAL & INSTALLATION. After repairs, go to next step.
  5. After repairs, recheck operation of indicator. If indicator operates properly, repair is complete. If indicator does not operate properly, go to step  2 .