What are the causes of anti-lock braking system failure?
2 Answers
Anti-lock braking system failure is caused by: 1. Severe wear of brake pads; 2. Low brake fluid level. The functions of the anti-lock braking system are: 1. To prevent vehicle loss of 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, highly sensitive wheel speed sensors installed on each wheel detect 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 preventing wheel lock-up.
As a driver with over a decade of experience, I've found that the most common issue with anti-lock braking systems is sensor failure, especially when wheel speed sensors get covered in mud or ice and snow, preventing them from sending accurate signals. Additionally, electronic components inside the ABS module are prone to moisture-induced short circuits or aging fractures, particularly if the vehicle frequently operates on wet roads. Clogged valves in the hydraulic pump can also impede oil flow, causing the system to lose responsiveness. These malfunctions typically trigger the ABS warning light on the dashboard. While regular braking may still function, the loss of anti-lock capability means wheels can lock up and skid during emergency stops, posing significant risks. Just last month, I encountered this situation—the light came on after driving in the rain, and the shop found the sensor caked with mud. It's best to regularly clean the wheel areas, avoid driving too close to water edges in rainy conditions, and promptly visit a professional repair shop when the warning light illuminates to diagnose the issue before minor problems escalate.
