Hyundai Ioniq (AE): Motor Driven Power Steering / MDPS Assembly. Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Steering System / Motor Driven Power Steering / MDPS Assembly. Repair procedures

Removal
1.
Disconnect the battery negative cable from the battery and then wait for at least 30 seconds.
2.
Turn the steering wheel so that the front wheels are placed in the straight ahead position.
3.
Remove the driver airbag module(DAB).

   
•
Insert the end of the flat tool along the guide hole. (Φ5mm allen wrench recommend.)
•
After inserting the tool, lightly press it. Can be easily remove the air bag module.
4.
Disconnect the airbag module connector (A) and horn connector (B).

   
•
The removed airbag module should be stored in a clean, dry place with the pad cover facing up.
5.
Disconnect the connector (A).

6.
Remove the steering wheel by loosening the lock bolt.

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

7.
Loosen the screw and then remove the steering column upper (A) and lower shroud (B).

8.
Disconnect the connector and then sepearte the clock spring (A).

   
•
When installing, perform the "Clock spring manual neutral setting procedure".
(Refer to Restraint - "Driver Airbag(DAB) Module and Clock Spring")
9.
Disconnect the multifunction switch connector.

10.
Loosen the screw and then remove the multifunction switch.

11.
Remove the fixed clip (A) from the steering column.

12.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad")
13.
Remove the knee airbag.

14.
Disconnect the knee airbag connector.

15.
Disconnect MDPS ECU connector.

16.
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.
•
When assembling, insert the shark pin into the universal joint york slot as the illustration below.

17.
Remove the steering column & EPS unit assembly by loosening the mounting bolt (B) and nuts (A).
Tightening torque
Nut : 25.0 - 29.4 N.m (2.5 - 3.0 kgf.m, 14.5 - 21.7 lb-ft)
Bolt : 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)

2.
To reassembly, reverse the disassembly procedure.
3.
Reassembly is the reverse of the disassembly.
   
•
Do not reuse the universal joint bolt.
•
When assembling, match the gear teeth as the illustration below.

Installation
1.
To install, reverse the removal procedure.
2.
Connect self-diagnosis connector(16pins) located in the lower of driver side crash pad to self-diagnosis devic.
3.
Conduct the "ASP Calibration".

4.
Conduct the "EPS Type Recognition".

    Removal1.Remove the MDPS assembly.(Refer to Steering System - "MDPS Assembly")2.Remove the MDPS control unit.(Refer to Steering System - "MDPS Control Unit")3.

    Removal1.Loosen the bolt (A) and then disconnect the universal joint assembly from the pinion of the steering gear box. Tightening torque : M8 BOLT : 32.

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