Yeah and I see a few others hanging there and I am guessing like you said it's for other things. I do have a wench, I wonder if they unplugged the speed sensor for it or accidentally? The reason I think that's what it is, is only because looking at the wiring diagram the speed sensor is like the only one with 3 wires of green, brown with a line and some purple or gray (marked with a V in the diagram).
If you could just let me know if it's not too much to ask, and it it's somewhat simple for you to do, I would really appreciate it. This has been bothering me and I don't want to have to take it to a dealer. I am trying to do all my own work as I do with most of my stuff.