Kia Sorento: MDPS System Repair procedures - Motor Driven Power Steering - Steering SystemKia Sorento: MDPS System Repair procedures

Kia Sorento (MQ4, 2021-2026) Service Manual / Steering System / Motor Driven Power Steering / MDPS System Repair procedures

Inspection
1.
MDPS power pack assembly failure can be quickly diagnosed using the vehicle diagnostic system (KDS).
(1)
Self-diagnosis: Checking failure and providing DTC code.
(2)
Current data: Checking the system input/output data state.
(3)
Actuation test: Checking the system operation condition.
(4)
Additional function: Controlling other features including system option setting, calibration adjustment and other function.
Note
When a DTC related to MDPS motor occurs, check the connectors and wiring. If there is no problem, replace the motor.
Replacement
1.
Remove the MDPS assembly.
(Refer to Motor Driven Power Steering - "MDPS Column & Housing")
2.
Disconnect the MDPS System connector (A).

Steering System — Motor Driven Power Steering / MDPS System / Repair procedures / Replacement illustration

Information
Disconnect the connector in the following order.

Steering System — Motor Driven Power Steering / MDPS System / Repair procedures / Replacement illustration

3.
Remove the MDPS System (A) after loosening the mounting bolts.

Tightening torque :
8.0 - 12.0 N·m (0.8 - 1.2 kgf·m, 5.9 - 8.8 lb·ft)

Steering System — Motor Driven Power Steering / MDPS System / Repair procedures / Replacement illustration

Steering System — Motor Driven Power Steering / MDPS System / Repair procedures / Replacement illustration

Installation
Note
•
Install the component to the specified torque.
•
Note that internal damage may occur if the component drops. In this case, use it after inspecting.
•
When installing a power pack, install it after checking the coupling (A).

Steering System — Motor Driven Power Steering / MDPS System / Repair procedures / Installation illustration

•
When attaching the power pack to the MDPS, attach the power pack in accordance with the guide line as follows.

Steering System — Motor Driven Power Steering / MDPS System / Repair procedures / Installation illustration

Steering System — Motor Driven Power Steering / MDPS System / Repair procedures / Installation illustration

1.
Install in the reverse order of removal.
2.
Perform the "MDPS Tuning Data Setting" by KDS.
(Refer to MDPS System - "Diagnosis with KDS")
3.
Perform the "SAS Calibration" and "Set the steering feel torque to zero" by KDS.
(Refer to MDPS System - "Diagnosis with KDS")
4.
Check and erase the DTC.
Note
•
Check if there is any DTC code found before DTC erase.
•
Replace the parts by MDPS Power Pack unit.
(Never detach the ECU and motor.)
5.
Perform the MDPS performance test.
Adjustment
Diagnosis with KDS [MDPS Tuning Data Setting] Since MDPS can store various tuning maps with different steering feelings in the ECU and different steering feelings depending on the app...
MDPS Column and Housing Repair procedures
Removal 1. Align the steering wheel so that the front wheels to facing straight ahead. ...
See also:

Removal
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