Monitor DTC Status
- Ignition "OFF"
- Connect Scan Tool and Ignition "ON"
- Monitor the ECM status by VIN reading whether it is virgin or learned
- Is the ECM status Virgin?
YES
- Perform VIN writing procedure according to the direction on the scan tool screen and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Fault is intermittent caused by poor contact in Sensor's and/or ECM's connector or was repaired and ECM 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 scan tool that can erase optional parts automatically detected and memorized by ECM. After testing ECM on the vehicle, use this function before reusing the ECM