Hyundai Creta: Electric Power Steering / Repair procedures
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 Conditions
|
Symptoms
|
Assist
Time
|
Warning light
|
Cause
|
Inspection Item
|
IG Off / Engine Off / Stationary
|
Steering assist failure
|
-
|
-
|
-
|
Normal
|
Steering assist working
|
120 seconds
|
Light is on.
|
IG power is supplied even when the IG is switched off. Steering angle is
not initialized.
|
① Check IG power line.
② Use scanner to initialize steering angle.
|
120 seconds
|
Light is off.
|
Failure in cluster or CAN signals
|
Check cluster, cluster lining, and CAN comm. line.
|
IG On / Engine Off / Stationary
|
-
|
Steering assist failure
|
-
|
-
|
-
|
Normal
|
Steering assist working
|
120 seconds
|
Light is on.
|
Steering angle is not initialized.
|
Use scanner to initialize steering angle.
|
120 seconds
|
Light is off.
|
Failure in cluster or CAN signals
|
Check cluster, cluster lining, and CAN comm. line.
|
When engine is turned on, IG stays at On, but engine goes off.
|
120 seconds
|
Light is on.
|
No EMS signals received (CAN comm.)
|
Check CAN comm. line.
|
120 seconds
|
Light is off.
|
Failure in cluster or CAN signals
|
Check cluster, cluster lining, and CAN comm. line.
|
IG On / Engine On / Stationary
|
Steering assist failure
|
-
|
Light is on.
|
Faults in power supply of EPS system and IG
|
Check the power lines of EPS system and IG
|
-
|
Light is on.
|
Diagnostic trouble code (DTC) appears
|
Use scanner to diagnose and troubleshoot
|
Steering assist working
|
-
|
-
|
-
|
Normal
|
-
|
Light is on.
|
Diagnostic trouble code (DTC) appears
|
Use scanner to diagnose and troubleshoot
|
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.
• |
After turning the ignition switch on, the steering wheel becomes
heavier while it performs EPS system diagnostics, for about
2 seconds, then it becomes normal steering condition.
|
• |
After turning the ignition switch on or off, EPS relay noise
may occur but it is normal.
|
• |
When it is steered, while the vehicle is stopped or in low driving
speed, motor noise may occur but it is normal operating one.
|
|
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.
|
|
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 "system", select the "ASP Calibration"
on GDS vehicle selection screen.
|
4. |
Follow the process as below.
|
5. |
Connect self-diagnosis connector(16pins) located in the lower of driver
side crash pad to self-diagnosis device.
|
6. |
Turn the self-diagnosis device after key is ON.
|
7. |
After Selecting the "vehicle model" and "system", select the "EPS Type
Recognition" on GDS vehicle selection screen.
|
8. |
Follow the process as below.
|
Schematic Diagrams
Terminal function
Type
Pin No
Description
MDPS
Power
1
Battery + ...
Components and components location
Components
1. Steering
column
2. Motor
3. ECU
4. Steering gear box
Repair procedures
Removal
...