abs light on 2002 Ford F-250 Super Duty

abs light stayed on after start after about two minutes it went out I noticed a trail of rust in drive but can't find where it came from

Asked by for the 2002 Ford F-250 Super Duty
1 answer
I would do a complete brake system inspection and check all of the ABS sensors. Your Brakes are NEVER anything to wonder about. They keep you and others alive. Then I would have the ABS system scanned. Good Luck!