Intermittent ABS problem

I have an 01 GP GT and Ive had the car for a month now. The ABS light is on most of the time. I recently had the pass wheel bearing replacedthinking that was the problem but no such luck. Since I've had this car only twice so far has the ABS worked on it. It will work only for a little bit then go back to the way it was and my traction control will only work when the ABS light is on. Does anybody have any ideas?

You need to have the car scanned with an ABS capable scan tool. This will tell you whether it's just a wheel speed sensor in a different wheel than the one you replaced, or a bad ABS module or pump.

I have an 01 GP GT and Ive had the car for a month now. The ABS light is on most of the time. I recently had the pass wheel bearing replacedthinking that was the problem but no such luck. Since I've had this car only twice so far has the ABS worked on it. It will work only for a little bit then go back to the way it was and my traction control will only work when the ABS light is on. Does anybody have any ideas?

How's your brake fluid level?