Passenger door electrical issues

I have a bone stock 2014 V6 Access cab TRD with about 65k miles. Bought used a year and a half ago with 50k miles, the only issue was the electric mirror adjustment didnt work on the passenger side, something I could live with. A few monthes later, the passenger side lock button stopped working (it still locks from driver side and key fob). Most recently the window stopped rolling up or down from either switch. Any advice on how to track down the issue? Are all three functions on one main circuit or is this three separate issues? I park it outdoors in Boston, MA so weather could be a factor.

 

I'd examine where the harness goes from the body into the door. May have wire damage there.