545rfe ?s

GapRider said

Old thread but this it's the best info I've found so far.
I have an 03 Ram 5.7 545RFE. I want to use the factory TCU with aftermarket ECU.
I understand I need to provide the necessary inputs to the factory TCU - does anyone have info on that, even a wiring diagram would be great.
Thanks for any help!

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