Which sensor controls the electric fans?

[stox]

The electric fans in front of the radiator are running all the time now. I suspect the sensor may be out. Which sensor controls them?

'96 C36, BTW.

TIA!

[jnenad16]

is your a/c on all the time?
the sensors that control them are the coolant temp sensor and the a/c press sensor. however, the most likely culprit to your problem might be the relay. but try unplugging each sensor one by one and see if the fans turn off, if not then one of the aux fan relays is sticking and needs to be changed(unplugging the coolant temp sensor will most likely activate CEL, so make sure you can reset it).

nenad

[stox]

Thanks for the suggestions! I will post the results when I have tried them.

And the results are in:

The culprit was a loose connection on the climate control unit. All seems well now. Thanks for help, your suggestions pointed me in the right direction.