Regal V6-3100 3.1L VIN M SFI (1996)
Radiator Cooling Fan Motor: Description and Operation
DESCRIPTION
The primary cooling fan operates when engine coolant temperature is above 226°F with A/C Off or 223°F with A/C or Defrost functions requested
and vehicle speed is less than 50 mph. When A/C refrigerant pressure is greater than 185 psi, then the cooling fans will run. When certain diagnostic
trouble codes are set then cooling fans will operate. The PCM will discontinue primary fan operation when the ignition is turned Off, engine coolant
temperature falls below 210°F or A/C pressure drops below 189 psi with A/C selected.
Secondary fan operation begins when engine coolant temperature reaches 235°F with A/C Off or On. The secondary fan will operate if A/C pressure is
above 236 psi with A/C requested and vehicle speed is below 50 mph . The secondary fan will discontinue operation if engine coolant temperature
drops below 228°F, refrigerant pressure drops to less than 185 psi or the ignition switch is turned to the Off position.
