Hyundai Santa Fe (TM): Motor Driven Power Steering / MDPS PowerPack Assembly. Repair procedures

Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual / Steering System / Motor Driven Power Steering / MDPS PowerPack Assembly. Repair procedures

Replacement
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Turn the steering wheel so that the front wheels are placed in the straight ahead position.
3.
Remove the steering column shroud lower panel.
(Refer to Body - "Steering Column Shroud lower Panel")
4.
Remove the crash pad lower pannel.
(Refer to Body - "Crash Pad Lower Pannel")
5.
Disconnect the MDPS connector (A).
  
•
When connecting the connector, be careful not to bend the pins and insert foreign objects.

6.
Remove the fixed clip (A) and then remove the wiring from the steering column.
7.
Remove the stop lamp switch.
(Refer to Brake System - "Stop Lamp Switch")
8.
Loosen the mounting nut (A) and bolt (B) and leave the steering column and EPS unit assembly lie on the vehicle's floor.
Tightening torque
(A) : 25.0 - 29.4 N.m (2.5 - 3.0 kgf.m, 14.5 - 21.7 lb-ft)
(B) : 53.9 - 58.8 N.m (5.5 - 6.0 kgf.m, 39.8 - 43.4 lb-ft)

9.
Remove the MDPS motor (A) after loosening the bolts.
10.
Check the axial damper (A) whether it is assembled, before installing the new MDPS motor.
  
•
Check the axial damper (A) whether it is assembled, before installing the new MDPS motor.
Before assembly
After assembly


11.
Install in the reverser order of removal.
12.
Conduct the "EPS Type Recognition" by diagnostic tool.
(Refer to MDPS motor - "Diagnosis with diagnostic tool")
13.
Conduct the "ASP Calibration" by diagnostic tool.
(Refer to MDPS motor - "Diagnosis with diagnostic tool")
14.
Check the DTC.
15.
Turn off the IGN switch and wait for 20 seconds or more. Then check the operation after starting the engine.
Diagnosis with diagnostic tool
EPS Type Recognition
  
•
When missing the EPS Type Recognition, occure a problem with motor driven power steering performance.
EPS Type Recognition procedures
1.
Connect self-diagnosis connector(16pins) located in the lower of driver side crash pad to self-diagnosis device.
2.
Turn the self-diagnosis device after key is ON.
3.
Turn the steering wheel to straight ahead position.
4.
After Selecting the "vehicle model" and "system", select the "EPS Type Recognition" on diagnostic tool vehicle selection screen.
5.
Remove the DTC.
6.
Turn off the IG switch and wait for 20 seconds or more before starting the engine. And then make sure that MDPS works properly.
SAS Calibration
–
Steering-angle sensor detects the steering angle and steering angle speed. Steering angle and steering angle speed are used for steering wheel damping and return controls in addition to providing assistance torque.
  
•
You can use a scan tool to (diagnostic tool) check if the battery voltage is proper before perform the "SAS Calibration".
•
Make sure that no connector engaged to the vehicle or scan tool is disconnected during the "SAS Calibration".
•
Once the "SAS Calibration" is complete, turn off the IG switch and wait for 10 seconds or more before starting the engine to check the operation.
SAS Calibration procedures
1.
Connect self - diagnosis connector (16pins) located in the lower of driver side crash pad to self - diagnosis device.
2.
Turn the self - diagnosis device after key is ON.
3.
Turn the steering wheel to straight ahead position.
4.
After Selecting the "vehicle model" and "system", select the "SAS Calibration" on diagnostic tool vehicle selection screen.
5.
Remove the DTC.
6.
Turn off the IG switch and wait for 10 seconds or more before starting the engine. And then make sure that MDPS works properly.

    A/S Repair produres [C-MDPS] MDPS System A/S Workflow â‘  Noise / malfunction Inspection â‘¡ Warning lamp (DTC) / CAN Line error 2 - 1 Checking Connectors and Wiring 1.

    Removal [C-MDPS] 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2.

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