How can ABS simply be deactivated?

The activation of Anti-lock Braking System (ABS) is designed to enhance vehicle control during emergency braking situations. When a driver pumps the brakes or decreases pressure on the brake pedal, it alters the braking dynamics in a way that can effectively mitigate the benefits of ABS, allowing the wheels to lock up.

Pumping the brakes manually can sometimes create conditions where the ABS system is less effective, as it is intended to automatically modulate brake pressure to prevent wheel lockup, especially during hard braking scenarios. Decreasing pressure on the brake pedal can similarly influence the system's operation, potentially leading to a lack of ABS function momentarily.

Thus, in real driving conditions, both actions—pumping the brakes and decreasing pressure on the brake pedal—can lead to scenarios where the ABS functionality is not engaged as intended, making them potential methods for deactivating the system's effectiveness in practice while not permanently disabling the system itself.