Monitor DTC Status

NOTE: If any Three Way Catalyst(TWC) or O2 Sensor(B1/S2) codes are present, DO ALL REPAIRS associated with those codes before proceeding with this troubleshooting tree.

Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode
Press F4(DTAL) to select DTC information from the DTCs menu
Confirm that "DTC Readiness Flag" indicates "Complete". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions
Read "DTC Status" parameter

Fig 1: Monitor DTC Status Parameter
Courtesy of HYUNDAI MOTOR CO.
Is parameter displayed "History(Not Present) fault"?
NOTE:
1. History (Not Present) fault : DTC occurred but has been cleared.
2. Present fault : DTC is occurring at present time.
YES
- 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 loose or poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to VERIFICATION OF VEHICLE REPAIR procedure.
NO
- Go to next step as below.