It's likely in the wiring to the door (the portion that flexes at the hinge) if both switches don't work for down. I'd try to expose and inspect some of that if you can.
Well it took me almost a year to finally heed your advice. I worked my way backwards to determine it wasn't anything related to the PS door. As has been noted on mud many folks have had the wires inside the DS door get cut. This makes more sense since the driver door gets opened and closed the most and has the most wires running through it. So I pulled driver door panel, kick panel, and the surprisingly difficult to remove foot rest. I disconnected the three plugs coming from the driver loom (one yellow - windows at minimum) and two that go directly to the junction panel. I pulled the loom back up into the door, which requires some McGiver pushing of a little tab that holds the loom in place by the lower door hinge. Once I cut the electrical tape back so I could free up the boot I was able to slide it back and found this:
As it turns out red w/ blue stripe is what goes to front PS door and I am pretty sure red w/ yellow strip goes to rear DS door (which also stopped working). 3 other wires had cuts but still had continuity from switch plug to the plug inside the kick panel, so I just taped those. For the two completely cut wires I spliced in a new small piece of wire. It may not look amazing but I can now roll down my front PS and rear DS windows!!! I also know this is an issue now and I am basically an expert and removing my door panels now, so will be easy to check this in the future if needed.
You may or not realize it, but you use your front PS window allot when you pull up next to folks on the trail. Also my wife will be happy to have an operational window again. This was a very satisfying fix although it took me forever to finally do it. My wife recently asked me how long it would take to fix the problem if my window stopped working