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: Description and Operation
- Function NoItemDescription 1Washer Linked Wiper – If the washer switch is pressed ON for 0.06 second with the vehicle mode in IGN2, the wiper relay is turned ON after washer switch ON, and then the wiper relay is turned OFF after wiper parking signal ON. 2MIST Linked Wiper – If the wiper mist switch is pressed ON for 0.6 second with the vehicle mode in IGN2, the wiper relay is turned ON, and then OFF after wiper parking signal ON.Hyundai Accent (HC) (2017 - 2022) Service Manual: Stop Lamp Switch
- Components 1. Brake pedal member assembly2. Stop lamp switch3. Brake pedal arm 4. Pedal pad - Schematic Diagram - System circuit diagram - Terminal function TerminalDescription 1IGN 2BS 3- 4B+ 5BLS 6GND - Adjustment 1.Turn ignition switch OFF and disconnect the negative (-) battery cable. 2.Remove the lower crash pad.