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.