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Check Engine Oil Indicator Light Always On

  1. If diagnostic system check has been performed, go to next step. If diagnostic system check has not been performed, perform INSTRUMENT CLUSTER DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Turn ignition on and observe CHECK ENGINE OIL indicator light. If indicator light does not turn off after bulb check, turn ignition off and go to next step. If indicator light turns off after bulb check, problem may be intermittent. Try to recreate fault by wiggling wiring and connectors. Check for faulty connections at all connectors that may be causing intermittent condition. See WIRING DIAGRAMS  .
  3. Turn ignition on. Press and hold odometer trip reset button for about 12 seconds. If CHANGE ENGINE OIL indicator light does not flash twice and then turn off, go to next step. If CHANGE ENGINE OIL indicator light flashes twice and then turns off, no problem is indicated at this time. Test is complete.
  4. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, select WOW mode. Command instrument cluster indicator lights off. If CHECK ENGINE OIL indicator light does not turn off, go to next step. If CHECK ENGINE OIL indicator light turns off, no problem is indicated at this time. Test is complete.
  5. Replace instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Check system operation.
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