Backstory: The son started the water pump job and either in an altered state, or a deliberate act (or both) went rogue taking off all kinds of things that he had no business taking apart. Sounds like he had the entire top of the engine off except for the turbo. When I came into the picture, the tech had things back together but no crank, no comm with the ECM.

Update: I spoke with the tech that was working on it and gained confidence in his abilities. I sent some wiring information so he could check things out and ended up sending a test ECM (broken connectors) out and the truck fired right up so I am shipping a properly matched and fully functional ECM out today.