You can also try slkworld.com

I don't have direct knowledge of these cars, but based on 1997 era cars, the fog light switch only sends a signal to the body computer then a relay or transistor is triggered turning on the light.

If relay, it might have stuck and could be cleaned, if transistor replacing the body module is a more direct route unless you have electronic and soldering background to diagnose and repair.

In any event, be sure to post the results here to help others in the future.

My car always does this, for about a minute. Yours stays on forever?

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra