Hyundai Santa Fe (TM): Motor Driven Power Steering / Steering Column and Shaft. Repair procedures

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

Removal
[C-MDPS]
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 driver airbag module.
(Refer to Restraint - "Driver Airbag (DAB) Module and Clock Spring")
4.
Remove the steering wheel.
(Referto Steering System - "Steering Wheel")
5.
Remove the clock spring.
(Refer to Restraint - "Driver Airbag (DAB) Module and Clock Spring")
6.
Remove the multifunction switch.
(Refer to Body Electrical System - "Multifunction switch")
7.
Remove the steering column shroud lower panel
(Refer to Body - "Steering Column Shroud lower Panel")
8.
Remove the crash pad lower pannel.
(Refer to Body - "Crash Pad Lower Pannel")
9.
Disconnect the MDPS connector (A).
  
•
When connecting the connector, be careful not to bend the pins and insert foreign objects.

10.
Remove the fixed clip (A) and then remove the wiring from the steering column.
11.
Loosen the bolt (A) and then disconnect the universal joint assembly from the pinion of the steering gear box.
Tightening torque :
M8 BOLT : 32.4 - 37.3 N.m (3.3 - 3.8 kgf.m, 23.9 - 27.5 lb-ft)
M10 BOLT : 49.0 - 58.8 N.m (5.0 - 6.0 kgf.m, 36.2 - 43.4 lb-ft)

  
•
Do not reuse the bolt.
•
Lock the steering wheel in the straight ahead position to prevent the damage of the clock spring inner cable.
•
Assemble so that the universal joint hole is inserted matching the cut surface of the pinion shaft.

12.
Remove the stop lamp switch.
(Refer to Brake System - "Stop Lamp Switch")
13.
Remove the MDPS assembly by loosening the mounting nuts (A) and bolt (B).
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)

14.
Install in the reverser order of removal.
15.
Conduct the "EPS Type Recognition" by diagnostic tool.
(Refer to MDPS motor - "Diagnosis with diagnostic tool")
16.
Conduct the "ASP Calibration" by diagnostic tool.
(Refer to MDPS motor - "Diagnosis with diagnostic tool")
[R-MDPS]
1.
Turn the steering wheel so that the front wheels are placed in the straight ahead position.
2.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
3.
Remove the driver airbag module.
(Refer to Restraint - "Driver Airbag (DAB) Module and Clock Spring")
4.
Remove the steering wheel.
(Referto Steering System - "Steering Wheel")
5.
Remove the clock spring.
(Refer to Restraint - "Driver Airbag (DAB) Module and Clock Spring")
6.
Remove the multifunction switch.
(Refer to Body Electrical System - "Multifunction switch")
7.
Remove the steering column shroud lower panel
(Refer to Body - "Steering Column Shroud lower Panel")
8.
Remove the crash pad lower pannel.
(Refer to Body - "Crash Pad Lower Pannel")
9.
Remove the fixing clip (A) from the steering column.
10.
Loosen the bolt (A) and then disconnect the universal joint assembly from the pinion of the steering gear box.
Tightening torque :
32.4 - 37.3 N.m (3.3 - 3.8 kgf.m, 23.9 - 27.5 lb-ft)

  
•
Do not reuse the bolt.
•
Lock the steering wheel in the straight ahead position to prevent the damage of the clock spring inner cable.
•
Assemble so that the universal joint hole is inserted matching the cut surface of the pinion shaft.

11.
Remove the stop lamp switch.
(Refer to Brake System - "Stop Lamp Switch")
12.
Remove the MDPS assembly by loosening the mounting nuts (A) and bolt (B).
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)

Disassembly
1.
Loosen the bolt (A) and then disconnect the universal joint assembly from the steering column assembly.
Tightening torque :
49.0 - 58.8 N.m (5.0 - 6.0 kgf.m, 39.8 - 43.4 lb-ft)

  
•
Do not reuse the universal joint bolt.
2.
Reassembly is the reverse of the disassembly.
  
•
When assembling, match the gear teeth as the below illustration.
Inspection
1.
Check the steering column for damage and deformation.
2.
Check the steering column for damage and deformation.
3.
Check the join bearing for damage and wear.
4.
Check the tilt bracket for damage and cracks.
5.
Check the key lock assembly for proper operation and replace it if necessary.
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.
Installation
1.
To install, reverse the removal procedures.
2.
Check the alignment.
(Refer to Suspension System - "Alingment")

    Replacement 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2.

    Components [R-MDPS] 1. Tie rod end 2. Lead wire 3. Short gear 4. Power pack [C-MDPS] 1.

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