More than likely the computer thinks that the engine is to warm, or overheating. Therefore it will turn on the a/c fan to help cool it down. I would like more info to help you out. Year, Model, Engine. All the time, some of the time, timeof driving, temp outside. ETC...
Why Is the fan is not running fast enough to cool down the motor? On A Jeep grand Cherokee Laredo 202
I mean how do you disassemble the fan blower in a 1998 Jeep Grand Cherokee Laredo. how do you remove the blower fan from the car in the Grand Jeep Cherokee Laredo.
Fan motor should be located at the passenger side firewall
try this, not sure if it the same moedel but the motor is the asme,,hope it helps http://www.wjjeeps.com/serpentine.htm
The fan motor and relays do go bad.
there is a shorted fan relay
HVAC compartment behind the dash on the passenger side.
access the blower fan from the engine compartment, passengers side, on the firewall, about the easiest blower motor to replace I have ever encountered.
What year, and model vehicle? 2003 jeep Cherokee
The radiator fan motor is electric. The fan motor fuse may be blown. The fan motor may need to be changed. The engine should not be operated when it is running hot.
The 1990 Jeep Cherokee electric fan relay switch is located on the firewall in the engine compartment. The fan relay switch will be on the passenger side of the firewall.
The relay is under the right front fender, behind the bumper. It's difficult to get to.