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Home >> Hyundai >> 2025 >> Kona N Line, 4WD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 4WD Control Diagnosis >> DTC P1957-21: AWD Pressure Sensor-Signal Error >> DTC Inspection >> Final DTC Checking

Final DTC Checking

Information 

After repairing the problem using the DTC guide, it is essential to verify if the troubles have been corrected.

  1. After connecting the GDS, perform self-diagnosis to check the "Fault code (DTC)".
  2. Clear the stored fault code by using the diagnostic device.
  3. The vehicle is driven according to the DTC detection condition of the failure determination condition.
  4. Using GDS, see if the DTC returns.
  5. Does the DTC recur?

    No fault code/OK 

    System is now working properly.

    Release the vehicle.

    Fault Code Regeneration/NG 

    Replace the AWD Pressure sensor and rerun the corresponding diagnostic guide.

    Replace the AWD ECU if necessary and "When replacing AWD ECU, backing up and inputting learning values"  procedure.