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Monitor DTC Status

  1. Connect GDS and select "Diagnostic Trouble Codes (DTC)  " mode.
  2. Confirm that "DTC Readiness Flag" indicates "COMPLETED". If not, drive the vehicle within conditions noted in the "Freeze Frame Data" or "Enable conditions".
  3. Read "DTC Status" parameter in DTC menu of the GDS.
    Fig 1: Scantool Display - DTC Status
    G12027855Courtesy of HYUNDAI MOTOR AMERICA
  4. Is parameter displayed "History (Not Present) fault"?

    YES 

    • Fault is intermittent caused by poor connection and/or HECU's connector or was repaired and HECU 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.

    NO 

    • Go to next step.
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