My advance trac started malfunctioning soon after buying the car new. The car would start pulling to one side and acting strange. I could see the ABS & Trac Control lights come on briefly then a message on the Message Center saying "Service Advance Trac". I could turn the Advance Trac off and it would be ok but as soon as I turned it on the same problems again.
It took 2 trips to the dealer (3 days each time) but they finally found the problem. The wires to one of the rear ABS sensors was too close to the exhaust pipe and was starting to melt. They replaced the wire and problem solved.
Newsletter Editor -
Mustang Club of Tampa