DTC P0480: Radiator Cooling Fan Control Circuit Malfunction: Description

Radiator cooling fan is turned on and off the radiator fan relay. Relay is in turn controlled by the Engine Control Module (ECM). When engine coolant temperature reaches 208°F (98°C) or more ECM signals relay and radiator cooling fan will turn on. When engine coolant temperature is less than 200°F (93°C) fan is turned off.