Hyundai Kona: Motor Driven Power Steering / MDPS 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 driver airbag module (DAB).
(Refer to Restraint - "Driver Airbag (DAB) Moudule and Clock Spring")
4.
Disconnect the connector (A) and then remove the steering wheel by loosening the lock bolt (B).
Tightening torque :
44.1 - 49.0 N.m (4.5 - 5.0 kgf.m, 32.5 - 36.2 lb-ft)

  
Do not reuse the steering lock bolt.
When assembling, match the gear teeth as the below illustration.

5.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
6.
Remove the steering column shroud upper panel (A).

7.
Remove the steering column shroud lower panel (A).

8.
Disconnect the connector (A), (B) and then remove the clock spring (C).

9.
Remove the multifunction switch.
(Refer to Body Electrical System - "Multifunction Switch")
10.
Disconnect the ignition switch connector (A), (B).

11.
Disconnect the MDPS ECU connector (A), (B).
  
You must separate the connector of the MDPS control unit as if it is not separated, the wiring may be damaged due to the brake pedal stopper.

12.
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.
When assembling, insert the shark pin into the universal joint york slot as the below illustration.

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)

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 GDS
ASP 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 (GDS) check if the battery voltage is proper before perform the "ASP Calibration".
Make sure that no connector engaged to the vehicle or scan tool is disconnected during the "ASP Calibration".
Once the "ASP Calibration" is complete, turn off the IG switch and wait for 10 seconds or more before starting the engine to check the operation.
ASP 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 "ASP Calibration" on GDS vehicle selection screen.

EPS Type Recognition
  
When missing the EPS Type Recognition, occure a problem with motor driven power steering performance.
  
You can use a scan tool to (GDS) check if the battery voltage is proper before perform the "EPS Type Recognition".
Make sure that no connector engaged to the vehicle or scan tool is disconnected during the "EPS Type Recognition".
Once the "EPS Type Recognition" is complete, turn off the IG switch and wait for 10 seconds or more before starting the engine to check the operation.
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 GDS 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.
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