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Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) System Check. After performing OBD system check, go to next step.
  2. Turn ignition on. Using scan tool in DTC INFO mode, select FAIL THIS IGN. If this DTC failed this ignition cycle, go to step 4). If this DTC did not fail in this ignition cycle, go to next step.
  3. Clear DTC. Cycle ignition on and off several times slowly (ignition on for 10 seconds then ignition off for 30 seconds). In DTC INFO mode on scan tool, select TEST FAIL SCC. If this DTC failed since it was cleared, go to next step. If this DTC has not failed since it was cleared, fault is not present.
  4. Replace PCM. Program replacement PCM using required equipment.
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