Durango Brakes Won't Bleed

This may well be an ABS issue. The Dakota I fixed from a junker has the brake warning on all the time, even though the brakes work great. I'm pretty sure its ABS I think they are 4 wheel in that one. The GMC also has a brake issue and I'm sure the ABS is the problem there. They are worse. The ABS module is underneath, jammed up into the frame and rear crossmemember. The GMC "engineer" who thought that up should have his member crossed.