If you have a stock harness with the PDC it is very easy to make it run. All you need to do is power the main buss with battery power and hook up an ignition source and switch. The cover of the PDC tells you all you need to know.
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Everything with a white paint mark is necessary to run. Everything else you can cut out. If you’re using an auto trans ecu you might as well use a 46re trans as its very simple to just let the ecu control it.
Edited to add:
This PDC was from a 2001, 1500 ram with a 5.9 and a 46re. All the obd2 stuff is the same.
