Kia Sorento: Adjustment - Motor Driven Power Steering - Steering SystemKia Sorento: Adjustment

Kia Sorento (MQ4, 2021-2026) Service Manual / Steering System / Motor Driven Power Steering / 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 application area and the vehicle engine type, it is necessary to set codes appropriate for the application area and the vehicle.
MDPS Tuning Data Setting procedure is necessary for;
–
DTC indicator illuminate (DTC Code: C1702, Application Area Fault).
–
Excessive different steering feeling.
–
Unstable steering.
Note
If skip the MDPS Tuning Data Setting, a problem may occur with motor driven power steering performance.
(S/W Management → Motor Driven Power Steering → MDPS Tuning Data Setting (Backup and Write))
Information
Refer to the KDS screen for operating conditions and details.
[SAS Calibration]
Steering-angle sensor is a built in function in MDPS torque angle sensor (TAS) to detect the steering angle and steering angle speed of the driver.
Steering angle and steering angle speed are used for damping control and restoring control in addition to the basic steering force.
Steering angle initializing (ASP calibration) is necessary for;
–
DTC indicator illuminate (DTC Code: C1261, Calibration Fault).
–
MDPS restoring control function OFF.
–
ESC function OFF.
C-MDPS
(S/W Management → Motor Driven Power Steering → Steering Angle Sensor(SAS) Calibration)
Information
Refer to the KDS screen for operating conditions and details.
[Set the steering feel torque to zero]
This function is to re-adjust the torque sensor zero point to improve the difference between the steering wheel left / right steering feel when the driver steers.
(S/W Management → Motor Driven Power Steering → Set the steering feel torque to zero)
Information
Refer to the KDS screen for operating conditions and details.
Repair procedures
A/S Repair produres [C-MDPS] C-MDPS System A/S Workflow Noise / malfunction Inspection ...
MDPS System Repair procedures
Inspection 1. MDPS power pack assembly failure can be quickly diagnosed using the vehicle diagnostic system (KDS). ...
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