Hi. My son just purchased a '97 Celica. It's his first "real" car.

For whatever reason(s), whoever worked on it last wired up the radiator fan to the headlights. When the headlights are on, the left radiator fan is spinning. The right fan never seems to do anything.

I'd like to sort this out. I know - in general - how this ought to work. There's a temp sensor somewhere that turns the fans on and off. There's a relay somewhere. Etc.

But I don't really know where to start looking. Any helpful hints (or wiring diagrams)?

Thanks!

Mark