This is a double post.....well sort of, but I want to make sure I reach those in the know.....

Please respond if you have the answer......
The engine fan comes on BEFORE I start the car. When I turn the key to the furthest position before starting the car, the fan comes on.....
Even when the car has been sitting for 9-10 hours and is completely cold, the fan will come on when I turn the key, it DOESNT wait until the engine is turned over......
It has been doing this for approx. three/four days.....
Has anyone heard of or experienced this????? Ive been told it could be either the fan sensor or relay??
Any experience or help with this will be greatly appreciated.....