Hyundai Elantra: Electric Power Steering / Description and Operation
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 control module controls the motor operation according to
information received from the each sensor and CAN (Controller Area
Network), resulting in a more precise and timely control of steering
assist than conventional engine-driven hydraulic systems.
Components (Torque Sensor, Fail-safe relay, etc.) of the EPS
system are located inside the steering column & EPS unit assembly
and the steering column & EPS unit assembly must not be disassemble
to inspect or replace them.
Note With Regard to diagnosis |
Trouble factor
| Check item
| Trouble symtom
| Explanation
| Note
|
Drop, impact, and overload
| Motor
| Abnormal noise
|
- |
Visable or unvisable damage can occur.The steering wheel could pull to one side by using the dropped parts. |
- |
Precise parts of motor/ECU are sensitive to vibration and impact. |
- |
Overload can cause unexpected damage |
|
- |
Do not use the impacted EPS. |
- |
Do not overload each parts. |
|
ECU
| Circuit damage
|
Torque sensor
| Insufficient steering effort
| Overload to INPUT shaft can cause malfunction of the torque sensor
|
- |
Do not impact the connecting parts (When inserting and torquing) |
- |
Use the specified tool to remove the steering wheel. (Do not hammer on it) |
- |
Do not use the impacted EPS |
|
Shaft
| Insufficient steering effort (Uneven between LH and RH)
|
| Do not use the impacted EPS
|
Pull/Dent
| Harness
|
- |
Malfunction-impossible power operation |
| Disconnection between harness connecting portion and harness
| Do not overload the harness
|
Abnormal storage temperature
| Motor/ECU
| Abnormal steering effort by improper operation of the motor/ECU
|
- |
Waterproof at the normal condition |
- |
Even a little moisture can cause malfunction of the precise parts of the motor/ECU |
|
- |
Keep the normal temperature and proper moisture, while storaging |
|
Schematic Diagrams
Terminal Function
TypePin NoDescriptionBattery1Battery +2Battery -VSS1IGN2-3-4-5-6-7HIGH CAN8LOW CAN
...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Replacement
•
When removing the fender, wrap protective tape around a screwdriver or remover not to damage components
•
Put on gloves to prevent hand injuries
•
When removing the clips, use a clip remover.
1.
Remove the fro ...
Hyundai Elantra AD (2016-2020) Owners Manual: Power adjustment
The front seat can be adjusted by using the control switches located on the outside
of the seat cushion. Before driving, adjust the seat to the proper position so that
you can easily control the steering wheel, foot pedals and controls on the instrument
panel.
WARNING
NEVER allow children in ...