Possible Causes
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
LOW SPEED RADIATOR FAN RELAY OPERATION
LOW SPEED RADIATOR FAN RELAY
(F1) FUSED IGNITION SWITCH OUTPUT CIRCUIT
(A16) FUSED B+ CIRCUIT
(N201) LOW SPEED RAD FAN RELAY CONTROL CIRCUIT OPEN
(N201) LOW SPEED RAD FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND
PCM