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.
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| • |
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:
Repair procedures
Inspection
Battery Voltage and Status
Check the battery voltage and status using the battery tester.
Battery Terminal
1.
Move back and forth to check that the battery terminals (A) are loose
or corroded.If the terminals are corroded, clean them ...
The temperature will increase to the
maximum (HI) by turning the knob all
the way to the right.
The temperature will decrease to the
minimum (Lo) by turning the knob all
the way to the left.
When turning the knob, the temperature
will increase or decrease by
0.5°C/1°F. When set to ...
MDPS Motor
MDPS Column and Housing