When I drove at local road on a snow day, the ABS light suddenly lighted on. I turned off the car and then turned it on before a red light. The ABS light was still on. When I turned on the car next morning, the ABS light was off. However, after I drove 10 feet on snow, the ABS light was on. From then, the ABS light is always on when I drive the car. I need your idea and experience where is the problem.

Thanks.