[fatfash]

I'm not sure if i'm going to repeat this but this is what I would do
Check that Vin match everywhere
Check that there is correct VO coding around the board in all reflecting module's
Compare part from before and new one
Compare wiring diagram for both parts old and new
Check wiring by cutting wire isolation away from the plug to see that there is no wire brakes and that plug are able to transfer correct voltage and amperage as well as signal
Exchange for other used/new part and/or module

I tried VO coding but with errors, ISTA+/P was able to identify the ECU(with part number showing) but will not code it. Just like you advised, i had the intention of connecting the old ECU to see if i will be able to do anything before cutting the signal wire.

Thanks