How ABS modulator valves works?

ABS modulator valves control the brake pressure applied to each wheel during anti-lock braking system (ABS) operation. When the system detects wheel lock-up, the modulator rapidly opens and closes the valves to reduce brake pressure and allow the wheel to continue turning, preventing skidding. This process is repeated multiple times per second to optimize braking force while maintaining vehicle control. The modulator thus helps enhance safety and stability during sudden stops or slippery conditions.