This one shouldn't be too hard. If you have the factory manual there is a good picture of the light switch that shows what each terminal powers up. Even if your new switch is not exactly like the factory one, you can put power to it and pull the rod out to the 2 positions and see which terminal has power in each position.

Last edited by Eureka Jim; 08/16/2017 4:23 AM. Reason: bad information