Repair Procedures: Replacement

WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.

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.

Disconnect the battery negative terminal.
Turn the steering wheel so that the front wheels are facing straight ahead.
Remove the steering column shroud lower panel.
(Refer to Body - "STEERING COLUMN SHROUD PANEL ")
Remove the crash pad lower panel.
(Refer to Body - "CRASH PAD LOWER PANEL ")
Remove the Knee Airbag (KAB) Module.
(Refer to Restraint - "KNEE AIRBAG (KAB) MODULE ")
Disconnect the MDPS ECU connectors (A).

Fig 1: Disconnecting MDPS ECU Connectors (1 Of 2)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: Disconnecting MDPS ECU Connectors (2 Of 2)
Courtesy of KIA MOTORS AMERICA, INC.
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)

Fig 3: Loosening Steering Column Lower Mounting Bolt
Courtesy of KIA MOTORS AMERICA, INC.
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)

Fig 4: Loosening Steering Column Upper Mounting Nuts
Courtesy of KIA MOTORS AMERICA, INC.
Remove the motor (A) by loosening the bolts and then replace the new one.
Tightening Torque:

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

Fig 5: Removing Motor
Courtesy 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.
Fig 6: MDPS Motor Barcode
Courtesy of KIA MOTORS AMERICA, INC.
Perform the "Inputting The Motor Constant Value" by KDS following in the order below.
1. Connect Self-Diagnosis connector (16 pins) 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.
  
  Fig 7: Screen Display - Select Part Replacement (Power Steering Motor)
  Courtesy of KIA MOTORS AMERICA, INC.
4. Proceed with the test according to the screen instructions.
Fig 8: Screen Display - Part Exchange - Power Steering Motor (1 Of 6)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 9: Screen Display - Part Exchange - Power Steering Motor (2 Of 6)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 10: Screen Display - Part Exchange - Power Steering Motor (3 Of 6)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 11: Screen Display - Part Exchange - Power Steering Motor (4 Of 6)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 12: Screen Display - Part Exchange - Power Steering Motor (5 Of 6)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 13: Screen Display - Part Exchange - Power Steering Motor (6 Of 6)
Courtesy of KIA MOTORS AMERICA, INC.

NOTE: Entering incorrect motor constant value may cause a serious problem in the MDPS.
Perform the "Steering Angle Sensor (SAS) Calibration" and "Set The Steering Feel Torque To Zero" below.
Turn OFF the IGN switch and wait for 10 seconds or more. Then check the operation after starting the Engine.