Is the Anti-lock Braking System Activated When the ABS Light Is On?
2 Answers
When the ABS light is on, the anti-lock braking system is not activated. Instead, it is in a faulty or even deactivated state. Overview of Automotive ABS: The Anti-lock Braking System, abbreviated as ABS, functions by automatically controlling the braking force during vehicle braking to prevent wheel lock-up. This ensures the wheels maintain a rolling and sliding state (with a slip ratio of around 20%), maximizing the adhesion between the wheels and the road surface. Classification of Automotive ABS: In ABS systems, the brake pipelines capable of independently adjusting braking pressure are referred to as control channels. ABS devices are categorized into four-channel, three-channel, two-channel, and single-channel types based on their control channels.
Recently when driving my old car, the ABS light came on, and I realized this wasn't a signal of the system activating—instead, it indicated a problem with the anti-lock braking system. The light typically illuminates when a fault is detected during self-check, and the system may have shut down to prevent further damage. Common causes include sensors covered in dirt, loose wiring connections, or a burnt-out module. As someone who frequently drives long distances, I understand the importance of ABS in braking—it prevents wheel lock-up, ensuring safer stops. But if the light stays on, the ABS isn't functioning, increasing the risk of wheel lock-up and skidding during hard braking. I recommend getting the vehicle checked immediately or taking it to a repair shop for diagnosis and fixes, especially since driving in rainy conditions becomes even more hazardous. Never take it lightly—safety should always come first.
