FixVault

Diagnostic procedure

MIL COMES ON - DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1
  • Connect WDS or equivalent to DLC-2.
  • Turn ignition key to ON.
  • Retrieve any DTCs.
  • Is "PASSED" displayed?
Yes No DTC is displayed: 
  • Inspect for short to GND circuit between MIL (located on instrument cluster) and PCM terminal 68.
No DTC is displayed: 
  • Go to appropriate DTC test.
2
  • Verify test results.
    • If okay, return to diagnostic index to service any additional symptoms.
    • If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
      • If vehicle is repaired, troubleshooting completed.
      • If vehicle is not repaired or additional diagnostic information is not available, replace or reprogram PCM.