Kia Picanto (JA): Motor Driven Power Steering / MDPS Motor

Kia Picanto (JA) 2017-2026 Service & Repair Manual / Steering System / Motor Driven Power Steering / MDPS Motor

Repair procedures

Replacement
1.
Disconnect the battery negative cable.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash pad lower panel")
3.
Disconnect the MDPS ECU connector.

4.
Disconnect all connectors connected to the steering column.
5.
Loosen the nuts (A) and bolt (B) and then remove the steering column assembly.
Tightening torque :
(A) 24.5 - 29.4 N·m (2.5 - 3.0 kgf·m, 18.1 - 21.7 lb·ft)
(B) 53.9 - 58.8 N·m (5.5 - 6.0 kgf·m, 39.8 - 43.4 lb·ft)

   
•
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.
6.
Loosen the MDPS motor bolts and then remove the MDPS motor.

7.
Apply the grease at the new MDPS motor.
Type : Multemp MM-V
P/N : YSBB0-91105FFF
Quantity : 0.7-1.2g (About 50 mm (0.1979 in))

8.
Install the MDPS motor.
Tightening torque :
14.7 - 21.6 N·m (1.5 - 2.2 kgf·m, 10.8 - 15.9 lb·ft)

   
•
Ahen installing, make sure the motor wiring direction.
•
Tighten the mounting bolts slightly, and then tighten the bolt 1, 2 by the equal torque several times.
9.
Installation is the reverse of the removal.
10.
Perform the "Steering Angle Sensor (SAS) Calibration" and "Set the steering feel torque to zero".
11.
Turn off the IGN switch and wait for 10 seconds or more. Then check the operation after starting the engine.
Diagnosis with KDS
Steering Angle Sensor (SAS) Calibration and Set the steering feel torque to zero
   
•
Check that the battery is fully charged before "Steering Angle Sensor (SAS) Calibration".
•
Be careful not to disconnect any cables connected to the vehicle or scan tool during "Steering Angle Sensor (SAS) Calibration".
•
After completing the "Steering Angle Sensor (SAS) Calibration", switch off the ignition and wait for several seconds. Then, start the engine to confirm normal operation of the vehicle.
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 "Steering Angle Sensor (SAS) Calibration" on KDS screen, then select OK.
4.
Proceed with the test according to the screen instructions.

5.
Select the "Set the steering feel torque to zero" on KDS screen, then select OK.
6.
Proceed with the test according to the screen instructions.

7.
Remove the DTC.
8.
Turn off the IG switch and wait for 10 seconds or more before starting the engine. And then make sure that MDPS works properly.

    Description and operation Description MDPS (Motor Driven Power Steering) system uses an electric motor to assist the steering force and it is an engine operation independent steering system.

    Repair procedures Replacement 1. Disconnect the battery negative cable. 2. Remove the crash pad lower panel. (Refer to Body - "Crash pad lower panel") 3.

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