Ive had this on going problem w/ my abs light. It seems that as soon as i start to move, it kicks on and stays on. Now when im driving if i press the brakes the lights on the cluster and my tach dim as if my altenator is going bad. It gets to the point that when i press the brakes that my headunit shuts off, folds back in and then comes back out, almost like it was shut off for like 2 seconds then turned back on. I have managed to drive the car before without the abs light kicking on and none of these problmes happen when its not on. I checked behind the wheels at the sensors and no one of the wires are broke or exposed and grounding out and the sensor itself is clean. I dont know what the problem is but it gets pretty annyoing that when i press my brakes at all my lights dim. Anyone have a similar problem?

get your alternator tested