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Testing radiator fans

On my red 5S, I noticed it getting close to 200 which it never does, then opened the hood to find that one of the fans were not working. In my limited knowledge about mechanics I went to the fuse box and all fuses looked good (from a diagram on the car it seems the fuses related to fans are near the bottom of the panel, but decided to look at them all anyway. Then I figured maybe the switch shown on the photo may be bad, and tried to test by hooking both of those wires directly together and figured that the fan should come on then. But it didn't. So that's the extent of my testing, not knowing what I am doing. Any ideas of how I should test that switch or the wires? Maybe I was testing correctly? I figured if I hooked those 2 wires together and the fan worked, then it was probably a bad switch, no?

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