Hyundai Venue: Motor Driven Power Steering / Repair procedures

Hyundai Venue (QX) (2020-2024) Service Manual / Steering System / Motor Driven Power Steering / Repair procedures

A/S Repair produres
MDPS System A/S Workflow

Hyundai Venue. Repair procedures

① Noise / malfunction Inspection

Hyundai Venue. Repair procedures

② Warning lamp (DTC) / CAN Line error
2 - 1 Checking Connectors and Wiring
1.
Checking Connectors and Wiring.
Check for damage, push-back, or improper connection in each connector and wiring.
(1)
Check the wiring on the vehicle side.
–
Check for open / short - circuit due to faulty connection, damage, or foreign substance.

Hyundai Venue. Repair procedures
(2)
Check the wiring on the ECU side (motor 3 - phase power).
–
Check for open / short - circuit due to faulty connection, damage, or foreign substance.

Hyundai Venue. Repair procedures
(3)
Check the motor connector.
–
Terminal Expansion and damage

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures   
•
Must be replaced the MDPS motor if occur terminal expansion and damage.
(4)
Check the motor wiring.

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures   
•
Must be replaced the MDPS motor if occur damage or problem.
(5)
Remove the grommet (A) and then check the wiring on the TAS side (B) and ECU side (C).
–
Check for damage, push-back, or improper connection in each connector and wiring.

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures   
Must be replaced the MDPS assembly if occur damage or problem.
Check the TAS wiring in case of C1259/C1290 DTC.
2 - 2 Inspection Items per DTC
DTC
Problem
First analysis method
How to repair
C1290
 Torque sensor signal error
 First erase DTC, check connector connection.
 In case of reoccurrence, replace column & housing.
C1112
 Torque sensor voltage error
 Check connector between torque sensor and ECU.
In case of reoccurrence, replace ECU.
C1705
 ECU hardware error
 First erase DTC and then check, check ECU connector.
C1604
 ECU over/discharge error
C2413
 ECU hardware error
C2400
 Motor signal error
 IIn case of reoccurrence, replace motor.
C2401
 Motor circuit error
C2412
 Motor voltage supply error
 First erase DTC and check, Check ECU/motor connector.
 First replace ECU. In case of reoccurrence, replace motor.
C1259
 Angle sensor signal error
 After Resetting zero point & erasing DTC, check connector connection condition.
 In case of reoccurrence, replace column & Housing.
C1261
 Zero-setting error
 After Resetting zero point, recheck.
 Reset the zero-setting.
C1102
 Battery voltage problem
 Check battery voltage condition.
 Recharge battery voltage.
C1696,C1697
 SPAS signal error
 Check SPAS.
 Erase DTC (MDPS is not to be replaced).
C1612,C1646
 TCU signal error
 Check TCU.
C1628,C1656
 Instrument cluster signal error
 Check instrument cluster.
C1692,C1693
 VSM signal error
 Check VSM.
C1260
 Angle sensor signal error
 After resetting the angle, recheck. If C1259 does not occur, check CAN line.
 Reset Angle sensor. Erase DTC.
C1611
 CAN time out EMS
 1. Check G-SCAN condition.
2. Check connector connection.
3. Check ECU CAN line.
4. Check MDPS ground line.
Check the EMS CAN Line.
C1616
 CAN BUS OFF
 Check the chassis CAN Line.
C1622
 Vehicle speed signal error
 Check the EMS (Engine ECU).
C1623,C1687,C1688
 Can time out Steering angle sensor
1. Check MDPS Power Connector & FUSE
2. Check MDPS Ground line
3. Check MDPS ECU / VSM CAN line
4. Communication status with GDS
 In case of reoccurrence, replace ECU
(Heavy steering and no communication)

③ MDPS Performance Inspection
1.
Inspect steering angle and DTCs relevant to the steering system.
2.
Inspection for heavy steering effort
(1)
Inspect tire pressure and width.
(2)
Check DTCs relevant to the CAN communication error.
(3)
Check the wheel alignment.
④ MDPS common problems
Case 1
Case 2
Case 3

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures
Multifunction switch noise
 Clock spring noise
 DAB / Wire noise
Retighten the bolt
 Replace clock spring
 Rearrange and replace DAB

Case 4
Case 5
Case 6

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures
Multifunction switch noise
 MB nut mount defect
 M10 nut mount defect
Replace multifunction switch
 Retighten nut
Retighten nut

Case 7
Case 8

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures
Cowl top bolt mount defect
 Cowl bar nut mount defect
Retighten cowl top bolt
 Replace clock spring

Hyundai Venue. Repair procedures   
Cautions to be taken when handling the MDPS (Motor Driven Power Steering)
•
Failure occurs due to internal damage because of the drop of and shock and excessive external force on the new partial component.
→ Be cautious of shock on the partial component and replace the damaged part (due to drop, etc.) with a new one.
•
When fastening the steering, excessive impact may result in twisting the center point of the torque sensor.
•
When removing/installing the connector the wiring may be damaged (deformed) by excessive external force.
•
Be cautious when storing and replacing the partial components under the abnormal temperature and humidity conditions.

    Components and components location

    Components Location 1. Steering wheel 2. Steering column 3. MDPS motor 4. MDPS ECU 5. Tie rod end 6...

    MDPS Motor. Repair procedures

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