I know a guy that put a 2015 together from 2 or 3 trucks and had wiring issues.
One day he was driving it, when the electric clutch lost power. There he was, sitting in the middle of traffic and no movement whatsoever.
Long story short, after swapping the case out in a parking lot, with no results, he found a bad spot in a harness and fixed the issue.
My point? No power to the clutch, no motion and once again, another electronic nanny to control how you drive.
Mark.