I hesitate to step in because I have an older model truck and don't have first-hand experience with this. But since no one else has chimed in, here's what I could find:
From study of a 2003 manual online (see hemitruckclub.com) I see Chrysler
uses a one wire multiplexed bus to connect the various computers to each other. Reading between the lines on the code definitions, I surmise that the OBD-II codes you are seeing are all just another way of saying "No BUS"; (see
OBD-II Codes).
This is to say the above mentioned one wire connection isn't working and the PCM/ABS/Dash Cluster can't talk to each other. Since the computers depend upon sharing sensor information, this problem will make them all complain, hence the check engine/brake/ABS lights.
The good news about the one wire scheme is that it only takes one wire instead of many, and each sensor only needs to be connected once. The bad news is that any problem with this wire takes out quite a bit of functionality.
With a detailed wiring diagram for your model year, you could track this wire down.
You might also inspect your "quadzilla commander". Check the tap connection on the map sensor wire, and any other places where it ties into the vehicle wiring. (The same "one wire bus" is a very convenient place for add-on gadgets to monitor or control the vehicle systems. )
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