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Monitor GDS Data

NOTE: If any codes relating to Rear HO2S or TWC (Three Way Catalyst Converter) are stored, do ALL REPAIRS associated with those codes before proceeding with this troubleshooting tree.
  1. Connect GDS to Data Link Connector (DLC).
  2. IG "ON".
  3. Select "DTC" button, and then Press "DTC Status" to check DTC's information from the DTCs menu.
  4. Read "DTC Status" parameter.
    Fig 1: Display - DTC Status Parameter
    G08817866Courtesy of HYUNDAI MOTOR AMERICA
  5. Is parameter displayed "Present fault"?

    YES 

    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, ending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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