1.STEP 1The ESP analyzes the intention of the driver.
2.STEP 2It analyzes the movement of the ESP vehicle.
3.STEP 3The HECU calculates the required strategy, then actuates the appropriate valves and sents torque control requests via CAN to maintain vehicle stability.
1.ESP Non-operation-Normal braking.
Inlet valve (IV) | Outlet valve (OV) | Traction Control Valve (TCV) | High pressure switch valve (HSV) | Return pump | |
Normal braking | Open | Close | Open | Close | OFF |
• IV : Inlet Valve
• OV : Outlet Valve
• RL : Rear left wheel
• FR : Front right wheel
• FL : Front left wheel
• RR : Rear right wheel
• RP : Return pump
• TCV : Traction Control Valve
• HSV : High pressure Switch Valve
2.ESP Increase Mode
Inlet valve (IV) | Outlet valve (OV) | Traction Control Valve (TCV) | High pressure switch valve (HSV) | Return pump | |
Normal braking | Open | Close | Close (Partial) | Open | ON (Motor speed control) |
• IV : Inlet Valve
• OV : Outlet Valve
• RL : Rear left wheel
• FR : Front right wheel
• FL : Front left wheel
• RR : Rear right wheel
• RP : Return pump
• TCV : Traction Control Valve
• HSV : High pressure Switch Valve
3.ESP Hold Mode (FR is only controlled.)
Inlet valve (IV) | Outlet valve (OV) | Traction Control Valve (TCV) | High pressure switch valve (HSV) | Return pump | |
Normal braking | Close | Close | Close (Partial) | Open | OFF |
• IV : Inlet Valve
• OV : Outlet Valve
• RL : Rear left wheel
• FR : Front right wheel
• FL : Front left wheel
• RR : Rear right wheel
• RP : Return pump
• TCV : Traction Control Valve
• HSV : High pressure Switch Valve
4.ESP Decrease Mode (FR is only controlled)
Inlet valve (IV) | Outlet valve (OV) | Traction Control Valve (TCV) | High pressure switch valve (HSV) | Return pump | |
Normal braking | Close | Open | Close (Partial) | Open | ON (Motor speed low control) |
• IV : Inlet Valve
• OV : Outlet Valve
• RL : Rear left wheel
• FR : Front right wheel
• FL : Front left wheel
• RR : Rear right wheel
• RP : Return pump
• TCV : Traction Control Valve
• HSV : High pressure Switch Valve
– During the initialization phase after IGN ON. (continuously 3 seconds).
– In the event of inhibition of ESP functions by failure.
– During diagnostic mode.
– When the ECU Connector is separated from ECU.
– During the initialization phase after IGN ON. (continuously 3 seconds).
– When the Parking Brake Switch is ON or brake fluid level is low.
– When the EBD function is out of order .
– During diagnostic mode.
– When the ECU Connector is separated from ECU.
– During the initialization phase after IGN ON. (continuously 3 seconds).
– In the event of inhibition of ESP functions by failure.
– During dignostic mode.
– When the ESP control is operating. (Blinking - 2Hz)
– During the initialization phase after IGN ON. (continuously 3 seconds).
– When driver turn off the ESP function by on/off switch.
Hyundai Accent (HC) (2017 - 2022) Service Manual: Airbag Module Disposal
- Airbag Disposal When you scrap a vehicle equipped with an airbag, you must deploy it first.When you deploy an airbag, you need to have a skilled mechanic do the work. The used airbag should not be reinstalled in another vehicle for reuse. • Upon deployment, the explosion will create a loud noise, so you have to do it in a proper place not to disturb others.Hyundai Accent (HC) (2017 - 2022) Service Manual: Floor Console Assembly
- Replacement [Manual consle] • Put on gloves to prevent hand injuries. • When removing with a flat - tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components. • Use a plastic panel removal tool to remove interior trim pieces without marring the surface.