Thanks FMS. I have the Haines and Clymer manuals, the Clymer has a significantly more in depth section on the ABS system than the Haines, like pages covering every component of the system is broken down with what it does, how to test, etc. Interesting note, ABS is only for the rear wheels on pickups, the SUV's have ABS on all wheels and a have a dedicated module.

I removed the 2 (two) separate trailer connections, one 7 pin and one 4 pin. My hope was since they tied into the brake pedal and tail light wiring there was a bad ground or something causing a fault, but no such luck. I also hooked an oscilloscope up to the ABS diagnostic connector, and receive the 'normal' wave pattern.

My next step is to individually test each component of the system, of which replacement parts are, to put it mildly, hard to come by. I found a 'brake modulator' which modulates the braking force some how for over $1000 on a Mopar site.