When my Tour was about 2 years old it had ABS problems. Light would go on/off all the time. Ford dealer jacked with it, gave it back and it came on again. They had it for a week the second time and finally ended up replacing the entire left harness, which finally fixed it. A few years later, after the radiator fan caught fire, they finally decided to replace the entire underhood harness too. I demanded they do it several months earlier because the insulation was falling off wholesale, they deemed it "unnecessary." In the process of doing this they blew up the ABS brain not once, but twice. Two weeks later I get the car back with lots of things not working on it so I leave it with a list of things to fix. Came back - still not complete. Third time it was acceptable. Still finding things off and misplaced to this day, this was over 2 years ago. They did a piss poor job on tour II. So bad that my Wife stopped dealing on a Ford Escape at this dealer and went across the street to a Mazda dealer. A week later she came home with a 2003 Tribute. The dealer is still calling us to pick up the parts they ordered to replace the ones they lost. I know where they can put them.
More than likely they fried the brain and are lying to cover their mistake. Had two dealers here do the same to us. I turned one over to a TV consumer help line and got their attention real fast. The owner call me at home and apolgize for what they did.