Thank you, it is great to have web sites like this to go where we all learn together about problems and how to care for for our equimpment in general. As to buying the computer I don't think so right now as Ford is the only place you can get that particular scanner and program. The Tech told me the set up cost 4000 bucks to the dealer, but it was worth the 75 bucks just be able to get to the source of the problem. I was very fortunate that the Shop Foreman was kind enough to test it for me and let me do the work in my shop. I figure I saved myself at least 250 dollars as it was mostly labor intensive having to pull the front tire, hub and brake caliper to get to the sensor. I am sure in the shop it would have been 400-500 dollars to do the job.