That's my confusion with this whole thread. if Donnie says the fan control module is in the fusebox I'm not going to argue, but I don't recall seeing one there, but for some reason it does sort of ring a bell with something I read somewhere.
Maybe the fusebox was actually a better location for it and never caused any problems when it was mounted there?
What I'm familiar with replacing is the one right behind the bumper bar itself on the left, you need to remove the left front wheel and remove what I call the front bumper apron, the black plastic panel under the front bumper, and also usually remove a few of the nuts/screws that hold the front splash pan to the inner fender structure. It's a finned aluminum box held down by 2 10mm nuts, one big "racetrack" shaped electrical connector. 2 large wires leading to the fan motor are the output wires, also has at least 1 large dia. wire which is coming from the 40 amp maxifuse to power up the fan, and the module I agree is controlled from the engine control unit, sends either a voltage coded signal or a cycle signal. If the fan runs with battery power jumped to it, fine, at least it does something, although I have seen them run with power jumped to it, but they wouldn't run "100%", which I guess you learn by experience if they are running full speed or not (sight and sound), and on this one case, the fan motor assembly fixed it. On that one, if I used activations to run the fan 100% it would run, but not anything lower than 100%. You gave it 100% and it would "sorta" run, there is nothing in WIS to tell you any of this. By "sorta" run, I mean I wouldn't want to stick my finger in there or anything, but it wasn't "howling fast" like a good running motor would give you.
Hope this helps. Hopefully the only real difference between what Donnie is saying and what I'm familiar with is the component location, maybe they though it would stay cooler outside the box or something, or wanted short output wires. Maybe they were just thinking "outside the box" .

Gilly