Fan Control

Fan Control

TAURUS/SABLE: PCM FC Output State For Cooling Fan Speeds Chart:

ESCAPE: PCM FC Output State For Cooling Fan Speeds Chart:

The PCM monitors certain parameters (such as engine coolant temperature, vehicle speed, A/C on/off status, A/C pressure, etc) to determine engine cooling fan needs. The PCM controls the fan operation through the Fan Control (FC) (single speed fan applications), Low Fan Control (LFC), Medium Fan Control (MFC) and/or High Fan Control (HFC) outputs.

Although the PCM output circuits for three speed tans are called low, medium and high fan control (FC), cooling fan speed is controlled by a combination of these outputs. Refer to the table.