Monitor Scan Tool Data

Ignition "OFF"
Connect Scan Tool and Engine "ON"
Monitor the ECM status whether it is virgin or learnt.

Fig 1: Scan Tool Display - HYUNDAI VEHICLE DIAGNOSIS
Courtesy of HYUNDAI MOTOR CO.
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 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.