Radiator Cooling Fan Motor: Description and Operation
Cooling Fans
The two radiator cooling fans are mounted in a cowl assembly within the cooling module.
The fans are controlled by the ECM dependent on the demand from the cooling system (temperature) or the air conditioning system (pressure).
Outputs from the ECM control the radiator fans control module, located behind the left hand side of the bumper, to operate the fans in the series mode (slow), parallel mode (Fast) or Off modes. Hysteresis in the temperature and pressure switching values prevents 'hunting' between modes.
Under hot operating conditions, the fans may continue to operate for some time after the engine has been switched off, but will stop automatically when the coolant temperature has been sufficiently reduced.