2002 S80 Headlights and AC stopped working
 

My son just purchased a 2002 S80. Car seems to run fine, but the headlights and the AC suddenly stopped working at the same time. I'm assuming that there is an electrical issue here, likely a common relay that failed. Anyone experience this fault or have advice on where to look?

From reading the forum, sounds like there are quite a few electrical/software issues with these cars.