really sounds like a short. there is a switch, at least on the older cars, on the actual arm of the brake pedal that I believe will disengage when depressed. while you’re not pushing on the pedal, there could be a short there.
I’m not fimiliar with sync yet, all my Fords are pre-2000. CSA may be getting at a short in the wiring in the column. it could be many things.
BTW, DON’T tilt steering wheel up and down while driving!!