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Home >> Hyundai >> 2016 >> Sonata Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 2.4L (Except HEV) (2 Of 2) >> DTC P0605: Internal Control Module Read Only Memory (ROM) Error >> DTC Inspection >> Monitor DTC Status
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Monitor DTC Status

  1. Connect GDS and select "DTC Analysis" mode.
  2. Select "Diagnostic Trouble Codes (DTC)" button, Press "DTC Status" to check DTC's information from the DTCs menu.
  3. Confirm that "DTC Readiness Flag" indicates "COMPLETED". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions.
  4. Read "DTC Status" parameter.
    Fig 1: Display - DTC Status Screen
    G10572262Courtesy of HYUNDAI MOTOR AMERICA
  5. 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 as 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.