We have a 2014 Bounder, my first thought would be to pull the switch plate off and 

take a look to see if a wire became disconnected from the rear of the switch. If 

your handy have a voltage tester handy and check for voltage at the switch.

        Good Luck, Don

The prior reply gave a good suggestion.  Pick up a cheap voltage tester and see if there is power running to the switch itself.   Test it with switch in both positions.     From one side of the switch to the other, and from each side to ground.   Let us know what you find out and we can go forward from there.  You don't need to spend hundreds of dollars on the multimeter unless you aspire to be an electrician.  Something like the one attached should do.