Hayden Fan Controller Wiring Question for 67 Dart 318

You're trying to put it in separate little boxes. It's for all of it. To help get the extra heat out of everything after the engine is cut off. That said, vehicles with a solid fan don't turn the fan after shutoff, so it won't hurt anything I guess.


What I have found is that running the fan after your engine is shut off will run down the battery if it's at all weak.