Hyundai Accent Manuals

Hyundai Accent: Repair procedures - Electric Power Steering - Steering SystemHyundai Accent: Repair procedures

Hyundai Accent RB (2010-2018) Service Manual / Steering System / 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.
 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.
 EMS CAN signal is not received
 Inspect the EMS1 CAN messege(ID 0×31.6)
•
Transmission check
•
TX data check
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.
 CAN communication between EPS and cluster is fault
 Inspect the CAN line

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.
Caution when EPS type recognition
•
Check if the battery is fully charged before EPS type recognition.
•
Be careful not to disconnect any cables connected to the vehicle or scan tool during EPS type recognition.
•
When the 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.
EPS Type Recognition Procedure
1.
Select "EPS Variant Coding".
2.
Proceed with the test according to the screen introductions.

Description and Operation
Description EPS (Electric power steering, Column assist type) system uses an electric motor to assist the steering force and it is an engine operation independent steering system. EPS ...

Steering Column and Shaft. Repair procedures
...

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