Engine Cooling Fan: Description: Mustang

Electric cooling fan operates whenever engine coolant temperature reaches 221°F (105°C) with ignition on, or when A/C is on and vehicle speed is less than 43 MPH. Cooling fan operation is controlled by Electronic Engine Control (EEC-IV) module and Integrated Relay Controller Module (IRCM). IRCM is located in engine compartment near right shock tower. EEC-IV module is located in right kick panel.