What does a car ABS system malfunction mean?

[ElijahMarie]

An ABS system malfunction in a car refers to the anti-lock braking system. The reasons for the ABS warning light to illuminate are: 1. Wheel speed sensor failure; 2. ABS circuit failure; 3. ABS pressure regulating solenoid valve failure; 4. ABS computer failure; 5. Poor electronic control device. The control channels of the ABS system are divided into: 1. Four-channel type, where a brake pressure regulator is installed in the pipeline leading to the brake cylinders of the four wheels for independent control; 2. Three-channel type, where the two front wheels are independently controlled, and the two rear wheels are controlled together according to the low-select principle; 3. Two-channel type, which is difficult to balance directional stability, steering control, and braking performance; 4. One-channel type, where a brake pressure regulator is installed in the rear wheel brake master pipe, and a wheel speed sensor is installed on the rear axle main reducer.

[Verona]

An ABS system failure means there's a problem with the anti-lock braking system. Simply put, during emergency braking, the wheels may lock up directly, significantly increasing the risk of skidding and losing control. I've encountered this situation myself after years of driving—when the light comes on, you need to be extra cautious immediately. Especially during rain or snow, when braking hard, you can feel the wheels locking up, making it hard to steer. Normally, this system relies on sensors to detect wheel speed. If the module fails or the wiring is damaged, causing inaccurate signals, the brakes won't return to normal, leading to longer braking distances and a higher chance of veering. This kind of fault should never be delayed. You need to quickly visit a reputable shop to diagnose the issue with a scanner. Sometimes, replacing a sensor can fix it for a few hundred bucks, but severe cases might require repairing the control module, which could cost over a thousand. Remember, safety comes first—if you see the warning light on, avoid long-distance driving. Slow down, drive cautiously, and pull over to the side for safety.

[DelAxel]

An ABS failure means the anti-lock braking function is disabled, potentially causing wheels to lock up and skid during braking. As a car enthusiast, I enjoy studying this system - it primarily relies on wheel speed sensors and control unit coordination. When sensors get dirty or contaminants interfere with data transmission, they send incorrect signals, making the computer misjudge wheel speed changes and trigger faults. Alternatively, corrosion or short circuits in the brake pump or wiring can cause current instability. Symptoms are obvious: the ABS warning light stays illuminated on the dashboard, and the brake pedal loses normal feedback vibration during hard braking. Untreated, this poses particular danger on slippery roads, increasing risks of rollovers or rear-end collisions. I recommend first cleaning dust/debris around the wheel sensor areas, then using professional diagnostic tools if problems persist - avoid amateur repairs that might worsen issues. Regular vehicle cleaning with proper sensor maintenance can prevent many such problems.

[StVivian]

An ABS system malfunction means there's an issue with the anti-lock braking system, indicated by a red warning light. The actual braking may become unstable, requiring extra caution when driving with children. I've personally experienced the terrifying feeling of wheels locking up during emergency braking on the highway, nearly causing a spin-out. The cause could be as simple as a loose sensor connector or as complex as a faulty control module affecting the entire system's responsiveness. It's best to have it checked at a reliable repair shop as soon as possible, with costs ranging from hundreds to thousands depending on the severity. Regular maintenance like avoiding aggressive braking on muddy roads can help prevent such issues. Most importantly, never drive at high speeds with this malfunction - the safety risks are too great.