A Ford Diesel is heated

As I can check the sensor that the fan front brings because it does not work they tell me that it works like the bus fans, the sensor brings 5 ​​cables, red, green, black, orange, coffee and a light blue but that did not have connected its interio had silk in the harnes only came 5 and they entered 5 or that it can be because the fan works slowly and so it is so heated.

Question: You noticed before having the problem in the speed of the fan

Yes and work at a speed that implies me because it works very fast