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Home >> Hyundai >> 2025 >> Kona SEL, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 2.0 (11 Of 15) >> DTC P2122-00: Accelerator Position Sensor 1 Signal Circuit Low Input >> DTC Inspection >> Final DTC Checking

Final DTC Checking

  1. After connecting the GDS, perform self-diagnosis to check the "Fault code (DTC)".
  2. Clear the stored fault code using a diagnostic tool.
  3. The system operates according to the DTC detection condition of the failure judgment condition.
  4. Perform self-diagnosis with GDS to check if the fault code has reoccurred.

    Fault Code Regeneration/NG 

    Case 1) some of the procedures are missing on the flow chart

    • Go on to the missing procedure.

    Fault Code Regeneration/NG 

    Case 2) If the same DTC returns, even though mechanic has completed the whole procedure in the flow chart,

    • It is possible to suspect PCM failure. Refer to the following to proceed with the PCM pass/fail decision.

    no fault code/OK 

    System is now working properly.

    Release the vehicle.

    Information 

    1. Replace the good PCM by referring to the appropriate service information.
    2. After replacing the PCM, make sure to proceed with the "Vehicle S/W Management" procedure.
    3. If the fault code is cleared after installing the non-defective PCM: It is determined that the PCM is defective and the vehicle is shipped with the non-defective PCM replaced.
    4. If the fault code is not cleared after installing the non-defective PCM: The existing controller cannot be determined as the cause of the fault.

      In this case, place the existing PCM again, and check for the whole inspection flow again.

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