Hyundai Kona: Motor Driven Power Steering / MDPS Control Unit Repair procedures
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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
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| 1. |
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.
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| (2) |
Turn the self - diagnosis device after key is ON.
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| (3) |
After Selecting the "vehicle model" and "EPS system" on GDS
vehicle selection screen.
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| (4) |
Select the "Part exchange(Power steering ECU)"
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| (5) |
Follow the instructions shown on the screen.
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| (6) |
Insert the VIN number and then select the "Read" in order to
the ECU information save.
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| 2. |
Disconnect the battery negative cable from the battery and then wait
for at least 30 seconds.
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| 3. |
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
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| 4. |
Disconnect the connector (A), (B) from the MDPS control unit.
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| 5. |
Remove the MDPS control unit (A) from the steering column after loosening
the bolts (B).
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Tightening torque :
19.6 - 23.5 N.m (2.0 - 2.4 kgf.m, 14.5 - 17.4 lb-ft)
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| 6. |
Install in the reverse order of removal.
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| 7. |
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.
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| (4) |
Select the "Part exchange(Power steering ECU)"
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| (5) |
Follow the instructions shown on the screen.
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| (6) |
Insert the VIN number and then select the "Write" in order to
the ECU information save.
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| 8. |
Conduct the "ASP Calibration" by GDS.
(Refer to MDPS Control Unit- "Diagnosis with GDS")
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| 9. |
Remove the DTC and then perform the Conduct the "MDPS TEST (Motor Driven
Power Steering)" by GDS.
(Refer to Motor Driven Power Steering - "MDPS Performance Inspection")
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| 10. |
Turn off the IGN switch and wait for 10 seconds or more. Then check
the operation after starting the engine.
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| – |
Steering-angle sensor detects the steering angle and steering angle
speed. Steering angle and steering angle speed are used for steering
wheel damping and return controls in addition to providing assistance
torque.
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| • |
You can use a scan tool to (GDS) check if the battery voltage
is proper before perform the "ASP Calibration".
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| • |
Make sure that no connector engaged to the vehicle or scan tool
is disconnected during the "ASP Calibration".
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| • |
Once the "ASP Calibration" is complete, turn off the IG switch
and wait for 10 seconds or more before starting the engine to
check the operation.
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| ASP Calibration procedures |
| 1. |
Connect self - diagnosis connector (16pins) located in the lower of
driver side crash pad to self - diagnosis device.
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| 2. |
Turn the self - diagnosis device after key is ON.
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| 3. |
Turn the steering wheel to straight ahead position.
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| 4. |
After Selecting the "vehicle model" and "system", select the "ASP Calibration"
on GDS vehicle selection screen.
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| 6. |
Turn off the IG switch and wait for 10 seconds or more before starting
the engine. And then make sure that MDPS works properly.
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Replacement
1.
Turn the ignition switch OFF and disconnect the battery negative (-)
cable.
2.
Turn the steering wheel so that the fron ...
Replacement
1.
Turn the ignition switch OFF and disconnect the battery negative (-)
cable.
2.
Turn the steering wheel so that the fron ...
MDPS Motor Repair procedures
MDPS Assembly Repair procedures