 ABS light
I have had the same problem before. The ABS sensor is kind of magnet that will sense when the wheels are about to lock up and releases the brakes momentarily. What you guys don't know is that when the lights are on then you have no ABS what so ever. You still have working brakes but they will lock up if you slam on them. What I do is take the braking system apart( calipers, disks, drums, etc) and clean them up really good and just give it a quick wash with water and they are good to go. It is basically dust particles that short out the sensor. | 
