Just guessing here, but it probably does to to that awning light dimmer. My guess is white would be the ground and would not show up at he back of the switch?
I think you might be right. Maybe the factory was out of dimmers and just put a blank cover on. I will try to find a factory dimmer, anybody know the brand or a supplier.
I think my RV shows up in my signature - Greyhawk Prestige 30xp
Looks like a yellow and pink wire w/no tracer. Checked the wiring diagram but no luck, the only thing close would be a awning light dimmer but it has three wires, yellow, pink, and white. Maybe Jayco knows.
I have this switch in my Greyhawk Prestige 30xp. It powers a couple tiny nightlights that illuminate the floor area around the bedroom and bathroom.