Monitor DTC Status

NOTE: If any DTCs relating to HO2S are stored, do ALL REPAIRS associated with those codes before proceeding with further troubleshooting

Connect GDS and select "DTC Analysis" mode.
Select "Diagnostic Trouble Codes (DTC)" button, Press "DTC Status" to check DTC's information from the DTCs menu.
Confirm that "DTC Readiness Flag" indicates "COMPLETED". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions.
Read "DTC Status" parameter.

Fig 1: Scantool Display - DTC Status
Courtesy of HYUNDAI MOTOR AMERICA
Record all DTC's, DTC status and freeze frame data. Does DTC Status indicate "Present"?
NOTE:
- History (Not Present) fault: DTC occurred but has been cleared.
- Present fault: DTC is occurring at present time.
YES
- Go to next step below.
NO
- Fault is intermittent caused by poor contact in the 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 then go to "VERIFICATION OF VEHICLE REPAIR " procedure.