What is the reason for the ABS light to come on in a car?

[HenryRose]

When the ABS light comes on in a car, it indicates a malfunction in the anti-lock braking system. Once this fault occurs, the ABS will stop functioning. Although the brake pedal can still be used, the braking performance of the car will deteriorate. During driving, if the car decelerates abruptly, the braking distance will increase, and the handling performance may also worsen during braking. The ABS system in a car enhances driving safety and improves the safety factor during emergency braking. The ABS indicator light on the dashboard is designed to show the working status of the anti-lock braking system. When the car is started, it enters a self-check mode. After the self-check is completed, the ABS light should turn off. If it remains on after starting, it signifies a fault in the ABS system.