99 Cavalier ABS Light on

I have a 99 Cavalier with a 2.2L and 4 speed transmission. My abs light would come on a little in the winter. Now it is on all the time. I am thinking it may be a speed sensor, but not sure where to start or where to look for the speed sensors. Is there one for each wheel?

Thanks in advance for all of the help.

Jared

I think I may have found the problem. I started looking around and found a sensor that is on each wheel. The drivers side sensor has a broken wire. I will be fixing the wire and trying it out. Hopefully this post might help somebody in the future.

Jared