Max96LSU

I Need help!!! Yesterday I noticed my ABS light came on while I was driving. I pulled over and turned the engine off to let it reset. When I restarted my car the ABS light comes on, but turns off after a few seconds. After 5 minutes or so of driving, the ABS light reappears. I tried pulling the code with the ECU but it does not show up.. Does the ABS system run on a seperate system than the electronic system, and if so is there a way to pull a code? I know this is possible with the 3rd gens, but I'm not sure if it's possible with the 4th geners.