2000 EB Expedition 4x4 ABS light is on and black module box seems to be running when my truck is off, have to disconnect battery for it to stop running...HELP!

 

What do you mean "black module box" ? The ABC light on means that their is a problem with your ABS system, and you'll need to have the trouble code pulled by Ford, or some other technician to tell you what's causing the trouble light to come on. Could be something a simple as a ABS wheel sensor. I just had the same problem, and turns out it was the rear differential ABS sensor that had failed, and I had Ford confirm it with a computer code check.