now thats weird man. have you tried safely slamming on the brakes on a gravel road to see if it will cycle? I dont know a whole lot about abs other than the above or a real fancy computer is required to make it cycle / read it. what happens when the scanner is unplugged, engine running, abs light on and then you plug the scanner in. does it go right off? no codes are displayed eh? Ted... do you think with the scanner plugged in it could be providing a ground somehow?