Kia Cee'd: Electric Power Steering / Repair procedures
| General Inspection |
After or before servicing the EPS system, perform the troubleshooting and test
procedure as follows. Compare the system condition with normal condition in
the table below and if abnormal symptom is detected, perform necessary remedy
and inspection.
|
Test condition |
Normal condition: Motor must not supply steering assist. |
||
|
Symptom |
Possible cause |
Remedy |
|
|
IG Off |
Motor supplies steering assist. |
ASP is not calibrated. |
Perform the ASP calibration using a scan tool. |
|
IG power supplies |
Inspect the IG power supply line. |
||
|
Test condition |
Normal condition: Motor must not supply steering assist, Warning lamp is
illuminated. |
||
|
Symptom |
Possible cause |
Remedy |
|
|
IG On/Engine Off |
Motor supplies steering assist. |
ASP is not calibrated. |
Perform the ASP calibration using a scan tool. |
|
EMS CAN signal is not received. |
Inspect the CAN line. |
||
|
Warning lamp is not illuminated. |
Cluster fault |
Inspect the cluster and cluster harness |
|
|
Test condition |
Normal condition: Motor supplies steering assist, Warning lamp is not illuminated.
|
||
|
Symptom |
Possible cause |
Remedy |
|
|
IG On/Engine On |
Warning lamp is illuminated and Motor dose not supply steering assist.
|
EPS (Hot at all times) and IG power supply fault |
Inspect the connector and harness for EPS (Hot at all times) and IG power
supply line. |
|
DTC is detected by system. |
Perform the self test using a scan tool and repair or replace. |
||
|
Warning lamp is illuminated and Motor supplies steering assist. |
ASP is not calibrated. |
Perform the ASP calibration using a scan tool. |
|
|
CAN communication between EPS and cluster is fault. |
Inspect the CAN line. |
||
ASP: Absolute Steering Position
CAN: Controller Area Network
EMS: Engine Management System
The following symptoms may occur during normal vehicle operation and
if there is no EPS warning light illumination, it is not malfunction
of EPS system.
|
Caution when ASP (Absolute Steering Position) calibration or EPS type recognition
| • |
Check if the battery is fully charged before ASP calibration or EPS
type recognition.
|
| • |
Be careful not to disconnect any cables connected to the vehicle or
scan tool during ASP calibration or EPS type recognition.
|
| • |
When the ASP calibration or EPS type recognition is completed, turn
the ignition switch off and wait for several seconds, then start the
engine to confirm normal operation of the vehicle.
|
ASP Calibration
| 1. |
Select "Steering Angle Sensor".
|
| 2. |
Proceed with the test according to the screen introductions.
|
EPS Type Recognition Procedure
| 1. |
Select "EPS Variant Coding".
|
| 2. |
Proceed with the test according to the screen introductions.
|
Schematic diagrams
Schematic Diagrams
MDPS Circuit Diagram
Harness Connector
Connector
Pin no
Pin name
Battery
1
...
Steering Column and Shaft Repair procedures
Replacement
1.
Remove the steering wheel.
(Refer to Steering Wheel - "Steering Wheel Assembly")
2.
Remove the steerin ...
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