OH MY!
That looks like a nightmare type to sort out! If you have it out of the dash, does it have a name and model like Carling XX_YYYY_?
Carling does post the details of their switches online and that might be one place to look for how it operates and which contacts make to which???? But that is not a happy place to start for me.
So I also cam across this drawing which is for the DRL and shows a module:
https://www.winnebago.com/Files/File...999/121694.pdf
I might guess this is a small relay in some box hidden away and no telling where but I might try finding it?
Maybe somebody who has been closer can give you better info but that is the best I've got!
Maybe if we can hang on, 2021 will be a better year, so wishing you luck!
__________________
Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!