It's not a foglight switch, as a fog light switch would have the lines facing down. Instead, the lines are facing straight. Who knows what kind of switch this is next to the Axle Lock switch?

 

Driving lights. Comes on as long as the parking lights are on, headlights on or off. What year?

 

I wish I could find one of these. That's the first one I've ever seen. Some guy on NAXJA has one, but hasn't been active on the forums for over 4 years to ask.

 

I'm starting to think maybe it's a backup light switch?

It's not a fog light switch. It's flipped 180º and the lines are directly straight instead of at an angle. Compare the graphics:



You can also very clearly see that there is a difference in circuitry between the switch I'm inquiring, and the fog light switch:

 

Graphics facing to the left, but close. Check out their store.

http://www.ebay.com/itm/Jeep-TJ-Wrangler-1997-2006-LIGHT-BAR-Rocker-Switch-LED-Lighting-LIGHT-LOGO-NEW-/300917610770?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item4610165912
Here's some other's. I bought their Led Light bar switch.

http://stores.ebay.com/on-board-air-...=p4634.c0.m322

 

Dude some of those are sweet lol

 

Well that's just an Ebay switch some aftermarketers made.

I have learned that the switch I'm inquiring about is a rear foglight switch that is mandatory in jurisdictions outside of North America. Rear foglights are not legal in the 50 U.S. states.