the cooling fan stays on and won't turn off.
the tempature contol sensor needs replacement,where is it located? on 1999 Plymouth Breeze
there is a fan relay that cuts the curtuit off or your fan switch needs to be replaced
does it stay on when the car is off? If not then you may need to replace the high and low speed fan replay which is located under a black plastic cover on the drivers side by the positive red batter cable