What is the reason for the ABS light turning on but returning to normal after restarting the engine?
2 Answers
This situation may indicate a fault in the ABS system. When this occurs, it is necessary to visit a local 4S shop to check if there is a fault in the ABS system. During the inspection, a diagnostic computer is required to read the fault codes, which can help technicians quickly locate the faulty part and determine the cause. Below is some relevant information about the ABS system: 1. Function: The ABS system is an anti-lock braking system that comes into play during emergency braking, preventing the wheels from locking up. 2. Fault manifestation: If the ABS system malfunctions, the indicator light on the dashboard will remain illuminated. Driving with a faulty ABS system poses significant safety hazards.
The ABS light comes on but returns to normal after restarting the engine. This phenomenon is quite common in my experience. It's usually caused by temporary system glitches, such as dust or moisture on the wheel speed sensors affecting signal transmission. The ABS system relies on these sensors to monitor wheel rotation speed, and inconsistent data will trigger the warning light. However, restarting the vehicle reinitializes the system, sometimes clearing the error code and restoring normal function. But this is only a temporary fix—the root cause remains. I've encountered this situation several times, and each time inspection revealed sensor issues or poor wiring connections, which were resolved by cleaning or securing them. Never take it lightly, as ABS failure can compromise braking safety, especially on slippery roads. I recommend getting a diagnostic check as soon as possible, along with inspecting brake fluid and battery voltage. Regularly cleaning the wheel hub area during car washes can help prevent recurrence.
