Monitor Scantool Data
- Ignition "OFF".
- Connect Scantool and Engine "ON".
- Monitor the ECM status whether it is virgin or learned.
- Is the ECM status Virgin?
YES
- Perform VIN writing procedure according to the direction on the scantool 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.