Kia Forte: Motor Driven Power Steering / MDPS Control Unit
Repair procedures
| • |
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
|
|
| 1. |
Perform the "ECU data backup" by KDS following in the order below.
| (1) |
Connect self-diagnosis connector (16pins) located under the driver
side crash pad to self-diagnosis device, and then turn the self-diagnosis
device after key is ON.
|
| (2) |
Select the "vehicle model" and "Motor Driven Power Steering"
on KDS vehicle selection screen.
|
| (3) |
Select the "Part replacement (Power steering ECU)" on KDS screen,
then select OK.
|
| (4) |
Proceed with the test according to the screen instructions.
|
If a DTC occurs in the ECU, check the connectors and
wiring. If no problem is found, replace the ECU.
|
|
|
| 2. |
Disconnect the battery negative terminal.
|
| 3. |
Remove the crash pad lower panel.
(Refer to Body - "Crash pad lower panel")
|
| 4. |
Disconnect the MDPS ECU connectors (A).
|
| 5. |
Loosen the mounting bolts (A) and then remove the MDPS ECU (B).
|
Tightening torque :
19.6 - 23.5 N·m (2.0 - 2.4 kgf·m, 14.5 - 17.4 lb·ft)
|
|
| 6. |
Install in the reverse order of removal.
|
| 7. |
Perform the "ECU data restore" by KDS following in the order below.
| (1) |
Connect self-diagnosis connector (16pins) located under the driver
side crash pad to self-diagnosis device, and then turn the self-diagnosis
device after key is ON.
|
| (2) |
Select the "vehicle model" and "Motor Driven Power Steering"
on KDS vehicle selection screen.
|
| (3) |
Select the "Part replacement (Power steering ECU)" on KDS screen,
then select OK.
|
| (4) |
Proceed with the test according to the screen instructions.
|
|
| 8. |
Perform the "Steering Angle Sensor (SAS) Calibration" and "Set the steering
feel torque to zero".
|
| 9. |
Turn off the IGN switch and wait for 10 seconds or more. Then check the
operation after starting the engine.
|
Steering Angle Sensor (SAS) Calibration and Set the
steering feel torque to zero
| • |
Check that the battery is fully charged before "Steering Angle
Sensor (SAS) Calibration".
|
| • |
Be careful not to disconnect any cables connected to the vehicle
or scan tool during "Steering Angle Sensor (SAS) Calibration".
|
| • |
After completing the "Steering Angle Sensor (SAS) Calibration",
switch off the ignition and wait for several seconds. Then, start
the engine to confirm normal operation of the vehicle.
|
|
| 1. |
Connect self-diagnosis connector (16pins) located under the driver side
crash pad to self-diagnosis device, and then turn the self-diagnosis device
after key is ON.
|
| 2. |
Select the "vehicle model" and "Motor Driven Power Steering" on KDS vehicle
selection screen.
|
| 3. |
Select the "Steering Angle Sensor (SAS) Calibration" on KDS screen, then
select OK.
|
| 4. |
Proceed with the test according to the screen instructions.
|
| 5. |
Select the "Set the steering feel torque to zero" on KDS screen, then
select OK.
|
| 6. |
Proceed with the test according to the screen instructions.
|
| 8. |
Turn off the IG switch and wait for 10 seconds or more before starting
the engine. And then make sure that MDPS works properly.
|
Repair procedures
Replacement
•
When a DTC related to MDPS motor occurs, check the connecto ...
Repair procedures
Removal
1.
Remove the steering column and shaft assembly.
(Refer to Motor Driven Power Steering - "Steering Column and Shaft")
...
Other information:
Components and components location
Components
1. Front - right tube
2. Rear - left tube
3. Rear - right tube
4. Front - left tube
5. MC SEC
6. MC PRI
7. ABS control module (HECU)
8. Bracket
Repair procedures
Removal
...
General safety information and caution
Instructions (R-134a)
When Handling Refrigerant
1.
R-134a liquid refrigerant is highly volatile. A drop on the skin of your
hand could result in localized frostbite. When handling the refrigerant,
be sure to wear gloves.
...
MDPS Motor
MDPS Column and Housing