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: Description and Operation
Description
AVN System
The AVN system has improved information search and easiness
of manipulation for the driver by simplifying the system operation
experience and unifying the display of the user information such as
multimedia and car information.
The system is basically composed of a k ...
Hyundai Elantra AD (2016-2020) Owners Manual: Driver Position Memory System
The Driver Position Memory System is provided to store and recall the following
memory settings with a simple button operation.
- Driver's seat position
- Side view mirror position
- Instrument panel illumination intensity
If the battery is disconnected, the position memory will be lost ...
Schematic Diagrams