Repair Procedures: Replacement

WARNING: This page is about a different variant/trim than selected.

NOTE:

If a DTC occurs in the ECU, check the connectors and wiring. If no problem is found, replace the ECU.
Before replacing the MDPS ECU, use the diagnostic device to read the settings of the old ECU.

Perform the "ECU data backup" by GDS following in the order below.
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. After Selecting the "vehicle model" and "EPS system" on GDS vehicle selection screen.
4. Select the "Part exchange(Power steering ECU)"
  
  Fig 1: Screen Display - Selecting Part Exchange Of Power Steering ECU (1 Of 5)
  Courtesy of KIA MOTORS AMERICA, INC.
5. Follow the instructions shown on the screen.
  
  Fig 2: Screen Display - Part Exchange Of Power Steering ECU (2 Of 5)
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 3: Screen Display - Part Exchange Of Power Steering ECU (3 Of 5)
  Courtesy of KIA MOTORS AMERICA, INC.
6. Insert the VIN number and then select the "Read" in order to the ECU information save.
  
  Fig 4: Screen Display - Part Exchange Of Power Steering ECU (Insert VIN Number) (4 Of 5)
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 5: Screen Display - Message (ECU Data Of Old ECU Was Backup) (5 Of 5)
  Courtesy of KIA MOTORS AMERICA, INC.
  
  NOTE: If a DTC occurs in the ECU, check the connectors and wiring. If no problem is found, replace the ECU.
Disconnect the battery negative cable from the battery and then wait for at least 30 seconds.
Remove the steering column upper and lower shrouds after removing 3 screws.

Fig 6: Removing Steering Column Upper And Lower Shrouds Screws
Courtesy of KIA MOTORS AMERICA, INC.
Remove the crash lower panel.

Fig 7: Locating Crash Lower Panel (1 Of 2)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 8: Removing Crash Lower Panel Screws (2 Of 4)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 9: Crash Lower Panel Connector (3 Of 4)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 10: Crash Lower Panel Connector (4 Of 4)
Courtesy of KIA MOTORS AMERICA, INC.
Loosen the screw and then remove the shower duct (A).

Fig 11: Loosening Shower Duct Screws
Courtesy of KIA MOTORS AMERICA, INC.
Disconnect all connectors from the steering column.
Disconnect the MDPS ECU connector (A).

Fig 12: Locating MDPS ECU Connector (1 Of 2)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 13: Locating MDPS ECU Connector (1 Of 2)
Courtesy of KIA MOTORS AMERICA, INC.
Remove the steering column by loosening the mounting bolts and nuts.
Tightening torque:

12.7 - 17.7 N.m (1.3 - 1.8 kgf.m, 9.4 - 13.0 lb.ft)

Fig 14: Loosening Steering Column Mounting Bolts And Nuts
Courtesy of KIA MOTORS AMERICA, INC.
Disconnect the MDPS ECU connector (A).

Fig 15: Locating MDPS ECU Connector
Courtesy of KIA MOTORS AMERICA, INC.
Loosen the bolts (A) and then remove the MDPS ECU (B).

Fig 16: Locating MDPS ECU & Bolts
Courtesy of KIA MOTORS AMERICA, INC.
Loosen the MDPS ECU bracket bolts (A) and then remove the MDPS ECU bracket.

Fig 17: Locating MDPS ECU Bracket Bolts
Courtesy of KIA MOTORS AMERICA, INC.
Install in the reverse order of removal.
Perform the "ECU data restore" by GDS following in the order below.
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. After Selecting the "vehicle model" and "EPS system" on GDS vehicle selection screen.
4. Select the "Part exchange(Power steering ECU)"
  
  Fig 18: Screen Display - Selecting Part Exchange Of Power Steering ECU (1 Of 3)
  Courtesy of KIA MOTORS AMERICA, INC.
5. Follow the instructions shown on the screen.
  
  Fig 19: Screen Display - Part Exchange Of Power Steering Backing Up ECU (2 Of 3)
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 20: Screen Display - Part Exchange Of Power Steering ECU (Selecting VIN Number Screen) (3 Of 3)
  Courtesy of KIA MOTORS AMERICA, INC.
6. Insert the VIN number and then select the "Write" in order to the ECU information save.
  
  Fig 21: Screen Display - Part Exchange Of Power Steering ECU (Insert VIN Number)
  Courtesy of KIA MOTORS AMERICA, INC.
Conduct the "ASP Calibration" by GDS.
(Refer to "Diagnosis With GDS ".)
Turn off the IGN switch and wait for 10 seconds or more. Then check the operation after starting the engine.