Brake Fluid Solenoid Valve Relay: Description and Operation

ABS Solenoid Relay: This solenoid goes on when signals are received from the ECU and controls the pressure acting on the wheel cylinders thus controlling the braking force.



TRAC & VSC Solenoid: The TRAC & VSC solenoid operates in accordance with signals from the ECU and raises the fluid pressure in and releases it from the brake cylinders.


ABS Motor Relay: The ABS motor relay supplies power to the ABS pump motor. While the ABS & TRAC & VSC are activated, the ECU switches the motor relay ON and operates the ABS pump motor.