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Home >> Kia >> 2020 >> Sorento EX, FWD >> Repair and Diagnosis >> Steering >> Steering Column >> Motor Driven Power Steering System >> MDPS Motor >> Repair Procedures >> Replacement

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 cable from the battery and then wait for at least 30 seconds.
  2. Remove the crash pad lower panel.

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

  3. Loosen the mounting screws and remove the steering column shroud lower panel (A).
    G12858452Courtesy of KIA MOTORS AMERICA, INC.
  4. Disconnect all connectors (A) connected to the steering column.
    G12858453Courtesy of KIA MOTORS AMERICA, INC.
  5. Remove the steering column (B) by loosening two (2) mounting nuts (A).

    Tightening torque: 

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

    G12858454Courtesy of KIA MOTORS AMERICA, INC.
  6. Remove the brake switch.

    (Refer to Brake System - "BRAKE SWITCH ")

  7. Remove the steering column mounting bolt (A).

    Tightening torque: 

    44.1 - 49.0 N.m (4.5 - 5.0 kgf.m, 32.5 - 36.2 lb.ft)

    G12858455Courtesy of KIA MOTORS AMERICA, INC.
  8. Loosen the MDPS motor bolts (A) and then remove the MDPS motor.
    G12858456Courtesy of KIA MOTORS AMERICA, INC.
    NOTE:
    • Be careful not to damage the driver's seat when replacing the MDPS motor.
    • 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.
  9. Install in the reverse order of removal.
  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.
      G12858457Courtesy of KIA MOTORS AMERICA, INC.
    4. Proceed with the test according to the screen instructions.
    G12858458Courtesy of KIA MOTORS AMERICA, INC.
    G12858459Courtesy of KIA MOTORS AMERICA, INC.
    G12858460Courtesy of KIA MOTORS AMERICA, INC.
    G12858461Courtesy of KIA MOTORS AMERICA, INC.
    G12858462Courtesy of KIA MOTORS AMERICA, INC.
    G12858463Courtesy 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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