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Check Engine Indicator Not Operating Properly

  1. Turn ignition off. Press and hold TRIP/RESET button on instrument panel. Turn ignition on. Mechanical Instrument Cluster (MIC) self-test will start. If CHECK ENGINE indicator light illuminates for about 4 seconds and then goes out, go to next step. If CHECK ENGINE indicator light does not illuminate for about 4 seconds and then go out, go to step  3.
  2. Using scan tool, read ENGINE DTCs. If any PCM DTCs are present, go to SELF-DIAGNOSTICS - GRAND CHEROKEE article in ENGINE PERFORMANCE. If no PCM DTCs are present, test is complete.
  3. Remove MIC and inspect CHECK ENGINE bulb. Replace as needed. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS. If bulb is okay, go to next step.
  4. Using scan tool, read ENGINE DTCs. If no PCM DTCs are present, go to next step. If any PCM DTCs are present, go to SELF-DIAGNOSTICS - GRAND CHEROKEE article in ENGINE PERFORMANCE.
  5. Replace instrument cluster printed circuit board. See appropriate INSTRUMENT PANELS article. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
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