Originally Posted by
comnrailpwr
Have built several standalone setups using late 5.9 ECM. It's not hard to do. The only thing you need is the engine harness and DCM. All the swaps I have done are manual swaps or standalone valve body trucks but that should be all you need as well for the 48RE control. There is no separate PCM as you stated. You will need the trans harness. Regardless the only thing that it needs to run and communicate is power, ground, 12 volts on the ignition run wire, can+ and can- get wired directly to an OBD2 port.. then you'll just have to lengthen the throttle pedal wires to get in the cab. I don't have the ECM pinout in front of me but if you have it should be pretty self-explanatory to figure out. The tipm was just a gateway for the communications bus. It split off there and went to other places. It's absolutely not necessary.
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