What is the sign of a malfunctioning anti-lock braking system?
2 Answers
The sign of a malfunctioning anti-lock braking system is the display of 'ABS'. The functions of the anti-lock braking system are: 1. To prevent loss of vehicle control, increase braking distance, and improve vehicle safety; 2. To enhance the overall braking performance of the vehicle; 3. To prevent wheel lock-up during braking; 4. To ensure the driver can control the direction during braking and prevent rear axle skidding. The working principle of the anti-lock braking system is: during emergency braking, relying on highly sensitive wheel speed sensors installed on each wheel, the system detects wheel lock-up. The computer immediately controls the pressure regulator to release pressure from the wheel's brake caliper, allowing the wheel to resume rotation, thereby achieving the purpose of preventing wheel lock-up.
That day while driving, I suddenly felt something strange with the brakes—they weren't as smooth as usual. The yellow ABS warning light (the circle with ABS letters) on the dashboard lit up prominently. I remembered that the car performs a self-check at startup, and the ABS light should flash briefly before turning off. But this time, it stayed on, indicating an issue with the anti-lock braking system. With ABS malfunctioning, the wheels are prone to locking up during braking, especially on wet or snowy roads, which could cause the entire vehicle to skid or lose control. I gradually pulled over and noticed the brake pedal felt harder than usual, with delayed response. Later at the repair shop, the mechanic diagnosed a faulty wheel speed sensor that had caused the system to shut down. After repairs, everything returned to normal. The illuminated ABS light is a critical warning that shouldn't be ignored—if encountered, reduce speed gradually without slamming the brakes, and get it checked promptly to avoid dangerous accidents. Safety always comes first.
