The Aux. Fan Revisited (please)

[GottaDiesel]

I did a search, and I find things -- but not for the 123.

The fan that is front of the radiator (the electric one) on my car will not off. I turn the key, it goes on. The past week, it would go off when I turned the car off, now it does not go off unless I disconnect the battery.

I tried to follow the wire but it was dark, I'm sick as a dog, and I'm confused.

Can somebody please tell me what I can do to fix this?

Thanks a million

GD