Hyundai Accent (HC): Motor Driven Power Steering / Description and Operation
- Description
MDPS (Motor Driven Power Steering) system uses an electric motor to
assist the steering force and it is an engine operation independent
steering system.MDPS 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 MDPS
system are located inside the steering column ＆ MDPS unit assembly and
the steering column ＆ MDPS unit assembly must not be disassemble to
inspect or replace them.
- Operation
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 MDPS. |
| – | 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 MDPS |
|
| Shaft | Insufficient steering effort (Uneven between LH and RH) | | Do not use the impacted MDPS |
| 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 |
|
Other information:
Hyundai Accent (HC) (2017 - 2022) Service Manual: Head Lamps
- Component
[General]
1. Turnsignal lmap bulb2. High / Low Beam bulb3. Position lamp4. Dust cap
[Bi-Function]
1. Static bending light bulb2. Turnsignal lamp bulb3. High / Low Beam bulb4. Dust cap
- Description
1.BI-FUNCTION(1)Definition – A headlamp with integrated functions of high and low beam.
– The light is controlled by rotating the shield inserted to the lens (A solenoid is adopted)
(2)Structure and mechanism – Case of working as a low
beam:The light illuminates to the restricted area of low beam by
blocking the light with the stopped shield.
Hyundai Accent (HC) (2017 - 2022) Service Manual: General Safety Information and Caution
- Instructions
• The R-1234yf liquid refrigerant is flammable gas. The gas
reduces oxygen available for breathing and causes asphyxiation in high
concentrations. The victim will not realize that he/she is suffocating.
• Inhalation may cause central nervous system effects and may cause drowsiness and dizziness.
• Ingestion may cause gastrointestinal discomfort.
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