What does it mean when the ABS and anti-skid lights come on simultaneously?

[Ken]

If the ABS warning light and the anti-skid light come on at the same time, it may indicate a sensor malfunction. Additional information is as follows: 1. Anti-lock Braking System: The Anti-lock Braking System (ABS) functions by automatically controlling the braking force during car braking to prevent wheel lock-up, keeping the wheels in a state of rolling and sliding (with a slip ratio around 0.2), thereby ensuring maximum adhesion between the wheels and the road surface. 2. Advantages: When a wheel is about to reach the next lock-up point, the brake fluid pressure causes the system to act repeatedly, performing 60 to 120 cycles per second, which is equivalent to continuous braking and releasing, similar to mechanical 'cadence braking'.