Hyundai Creta: 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 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.
ASP Calibration
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.

EPS Type Recognition
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
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