ESC Operation Mode

ESC Non-operation-Normal braking.

ESC OPERATION MODE TABLE

	Inlet valve (EV)	Outlet valve (AV)	Pilot valve (USV)	High pressure switch valve (HSV)	Pump motor
Normal braking	Open	Close	Open	Close	OFF

Fig 1: ESC Operation Mode System Diagram

Courtesy of HYUNDAI MOTOR CO.

ESC INCREASE MODE

ESC INCREASE MODE TABLE

	Inlet valve (EV)	Outlet valve (AV)	Pilot valve (USV)	High pressure switch valve (HSV)	Pump motor
Normal braking	Open	Close	Close (Partial)	Open	ON (Motor speed control)

Fig 2: ESC Increase Mode System Diagram

Courtesy of HYUNDAI MOTOR CO.

ESC HOLD MODE (FR is only controlled.)

ESC HOLD MODE TABLE

	Inlet valve (EV)	Outlet valve (AV)	Pilot valve (USV)	High pressure switch valve (HSV)	Pump motor
Normal braking	Close	Close	Close (Partial)	Open	ON (Motor speed low control)

Fig 3: ESC Hold Mode System Diagram (FR Is Only Controlled)

Courtesy of HYUNDAI MOTOR CO.

ESC DECREASE MODE TABLE

	Inlet valve (EV)	Outlet valve (AV)	Pilot valve (USV)	High pressure switch valve (HSV)	Pump motor
Normal braking	Close	Open	Close (Partial)	Open	ON (Motor speed low control)

Fig 4: ESC Decrease Mode System Diagram (FR Is Only Controlled)

Courtesy of HYUNDAI MOTOR CO.

Fig 5: Identifying ABS Warning Lamp Module

Courtesy of HYUNDAI MOTOR CO.