Brake Sensor problems of the 2002 Ford Windstar

We had the wiring harness recall performed in June 2010. Shortly after the recall was performed the abs, brake & trac control lights started to illuminate intermittently. We have replaced 2 abs sensors among other things however the lights continue to come on. Took van to dealer today for axle recall & informed them of abs, brake & trac light issue. They said wiring harness was replaced & there was no leakage @ the time they replaced. I asked them to please look & see if they noticed any signs of leakage around abs module. After 2 minutes they came back & said no. They said that it was probably a sensor when I told them they have been replaced they said well we would have to hook car to machine & check codes which would cost me $80 (mind you auto zone is free). I have come to understand that there are many Ford Windstar owners who have the exact same problem and I believe that this problem is due to faulty materials or wiring and that abs module needs to be replaced but because it's so costly Ford will not recall the part. I have three young children that are being driven in this vehcile. I don't feel safe driving this vehicle without the proper safety features I was promised - including anti-lock brakes. Ford holds a lot of peoples lives in their hand due to this problem (whether it be the car catches on fire or loses braking power), they can't replace a life or an entire family for that matter but they can surely replace a faulty part. Please I am begging to make Ford recall this problem that is affecting so many people, make it part of the original recall, it's all related!!!.

Abs warning lamp on. Dealer spent considerable time testing each wheel sensor, unable to verify cause. Code given was c1155: lf anti lock brake sensor (electrical/static). Later replaced all 4 wheel sensors with no luck of fixing. Replacement of ecm necessary to clear mil.