Monitor DTC Status

Ignition "OFF"
Connect Scantool and Ignition "ON"
Monitor the PCM status by VIN reading whether it is virgin or learnt
Is the PCM status Virgin ?
YES:
- Perform VIN writing procedure (Refer to "ENGINE CONTROL MODULE (ECM) ") and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO:
- Fault is intermittent caused by poor contact in Sensor's and/or PCM's connector or was repaired and PCM 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
NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. After testing PCM on the vehicle, use this function to reuse the PCM on the others