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Home >> Kia >> 2024 >> Forte LX >> Repair and Diagnosis >> Steering >> Steering Column >> Motor Driven Power Steering System >> MDPS Motor >> Repair Procedures >> Replacement
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Repair Procedures: Replacement

NOTE:
  • When a DTC related to MDPS motor occurs, check the connectors and wiring. If no problem is found, replace the motor.
  • Be sure to check the last two digits of the constant in the barcode of new MDPS motor before replacing the motor.
  • Entering incorrect motor constant value may cause a serious problem in the MDPS.
  1. Disconnect the battery negative terminal.
  2. Turn the steering wheel so that the front wheels are facing straight ahead.
  3. Remove the steering column shroud lower panel.

    (Refer to Body (Interior and Exterior) - "STEERING COLUMN SHROUD PANEL ")

  4. Remove the crash pad lower panel.

    (Refer to Body - "CRASH PAD LOWER PANEL ")

  5. Disconnect the MDPS connector (A).
    G14561699Courtesy of KIA MOTORS AMERICA, INC.
  6. Disconnect all connectors connected to the steering column.
  7. Loosen the steering column lower mounting bolt (A).

    Tightening torque: 

    53.9 - 58.8 N.m (5.5 - 6.0 kgf.m, 39.8 - 43.4 lb. ft)

    G14561700Courtesy of KIA MOTORS AMERICA, INC.
  8. Loosen the steering column upper mounting nuts (A) and then disconnect the steering column & shaft.

    Tightening torque: 

    24.5 - 29.4 N.m (2.5 - 3.0 kgf.m, 18.1 - 21.7 lb.ft)

    G14561701Courtesy of KIA MOTORS AMERICA, INC.
  9. Loosen the bolts and then remove the MDPS motor (A).

    Tightening torque: 

    7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb.ft)

    G14561702Courtesy of KIA MOTORS AMERICA, INC.
    NOTE:
    • Be careful not to damage the MDPS motor & ECU.
    • If shock the motor, may occurs a noise caused by the bearing damage of motor inside.
    • Be sure to check the last two digits of the constant in the barcode of new MDPS motor before replacing the motor.
    G14561703Courtesy of KIA MOTORS AMERICA, INC.
  10. Perform the "Inputting the motor constant value" by KDS following in the order below.
    1. Connect self-diagnosis connector (16pins) located under the driver side crash pad to self-diagnosis device, and then turn the self-diagnosis device after key is ON.
    2. Select the "vehicle model" and "Motor Driven Power Steering" on KDS vehicle selection screen.
    3. Select the "Part replacement (Power steering Motor)" on KDS screen, then select OK.
      G14561704Courtesy of KIA MOTORS AMERICA, INC.
    4. Proceed with the test according to the screen instructions.
    G14561705Courtesy of KIA MOTORS AMERICA, INC.
    G14561706Courtesy of KIA MOTORS AMERICA, INC.
    G14561707Courtesy of KIA MOTORS AMERICA, INC.
    G14561708Courtesy of KIA MOTORS AMERICA, INC.
    G14561709Courtesy of KIA MOTORS AMERICA, INC.
    G14561710Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: Entering incorrect motor constant value may cause a serious problem in the MDPS.
  11. Perform the "Steering Angle Sensor (SAS) Calibration" And "Set The Steering Feel Torque To Zero".
  12. Turn off the IGN switch and wait for 10 seconds or more. Then check the operation after starting the engine.
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