How do you turn on the fog lamps your 2002 Ford Windstar?

The 2002 Ford Windstar doesn't have fog lamps as standard equipment. They weren't offered as a factory option on that model year. If you have lights that you *think* are fog lamps, they're likely aftermarket additions, and their activation method would depend entirely on how they were wired by whoever installed them. There's no factory switch or method for turning on fog lights in a 2002 Windstar.