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Malfunction Indicator Light On Steady

  1. Perform On-Board Diagnostic (OBD) System Check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  . After performing OBD system check, go to next step.
  2. Turn ignition off. Disconnect PCM C-1 electrical connector. Turn ignition on. If MIL comes on, go to next step. If MIL does not come on, go to step 5).
  3. Turn ignition off. Disconnect instrument panel cluster connector. Check for short to ground in MIL control circuit (Violet wire) between PCM connector C-1 terminal A13 and instrument panel cluster. Repair as necessary. Repeat ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  . If circuit is okay, go to next step.
  4. Replace instrument panel cluster. Repeat ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  .
  5. Turn ignition off. Reconnect PCM C-1 electrical connector. Turn ignition on. Reprogram EEPROM. Using scan tool, command MIL OFF. If MIL did not go off, go to next step. If MIL did go off, repeat ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  .
  6. Replace PCM. Repeat ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  .
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