MDPS Control Unit

Repair Procedures

Removal

1. 1

   Disconnect the battery negative cable.

2. 2

   Remove the airbag lower panel.

   (Refer to Body - "Under Cover Panel")

3. 3

   Disconnect the MDPS EUC connector.

   

   

4. 4

   Loosen the MDPS ECU bolts and remove the MDPS ECU.

   

5. 5

   Install in the reverse order of removal.

6. 6

   Perform "Steering Angle Sensor (SAS) Calibration" and "Steering Torque Sensor Zero Point Adjustment."

7. 7

   Turn the IGN switch OFF and wait 10 seconds or more. Then check operation after starting the engine.

Installation

1. 1

   Install in the reverse order of removal.

2. 2

   Check the wheel alignment.

   (See Suspension System - Alignment)

3. 3

   Perform ASP calibration.

   (Refer to Electric Power Steering - "Repair Procedures")

Diagnosis Using KDS

Steering Wheel Angle Sensor (SAS) Calibration and Steering Torque Zero Point Setting

1. 1

   Connect the diagnostic link connector (16-pin) located under the driver's side. Connect the diagnostic tool to the link connector, then turn the ignition on.

2. 2

   On the KDS screen, select the "Vehicle Model" and "Electric Power Steering (EPS)" selection screens.

3. 3

   On the KDS screen, select "Steering Wheel Angle Sensor (SAS) Calibration," then select OK.

4. 4

   Continue the test according to the instructions on the screen.

   

   

   

   

   

5. 5

   On the KDS screen, select "Set Steering Zero Torque," then select OK.

6. 6

   Continue the test according to the instructions on the screen.

   

   

   

   

7. 7

   Clear the diagnostic trouble code.

8. 8

   Turn the IG switch OFF and wait at least 10 seconds before starting the engine. Then check that the MDPS operates correctly.