I found this video and thought I would share. It seems to cover all the systems. As I didn't buy my trailer from a dealer I did not get the standard walk through. The gentleman I purchased from had only used the trailer a couple of times and was not familiar with it's use.
I thought it might be helpful to other owners or prospective owners of used trailers. I'm guessing this is an early 2017 Trailer.
Mike and Lisa Campbell
2016 [email protected]
Max S, Silver/Red "Sock Monkey", 2014 F150 3.5L Ecoboost