My car has its ABS light on every now and then. It doesn't come on everytime I drive it but its on frequently. I've hooked my ABS scanner up to it but it gives me an error everytime i try. One problem could be that the car is not in the list of cars on the ABS scanner. Its a 1996 GT. Now I have a good idea what the problem is, but it would be hard to pinpoint it without the scanner. Its acting very much like a wheel sensor isnt working, where abs is engaging when the wheels havent actually stopped moving. But how can I find out which wheel sensor it is without replacing all of them?