ABS light comes on only after driving

i just installed new left inner and outer CV joints and axle. When I get in my car the ABS light goes on and then off like normal. About 5 seconds after driving away the light comes on and stays on. I checked all the lines going to the left wheel and everything looks fine. The ABS system is obviously working since it is pressurizing and activating at start up. The only thing I can think of is that it is the wheel sensor. Any ideas?

Oh and how do you jump the service connector to check what code is being thrown.

I got the same problem too, but i read my ABS check light error code , and it's 4 and 8 , i don't know what that means!!! :(

When you find the answer of your problem, can you e-mail me please??? thanks!!! :D