Monitor Scan Tool Data

Connect scan tool to data link connector (DLC).
Ignition "ON".
Confirm the "ROM I.D".
Perform the "ROM UP-DATE".
Perform the Re-diagnosis.
Is "DTC" disappeared?
YES
- Fault is intermittent caused by poor contact in the sensor's and/or PCM/TCM's connector or was repaired and PCM/TCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Replace PCM/TCM as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.