Electric Cooling Fan

DESCRIPTION
The fan is electrically controlled by the Powertrain Control Module (PCM) through the fan control relay. This relay is located in the Power Distribution Center (PDC). For the location of the relay within the PDC, refer to label on PDC cover.


OPERATION










The PCM regulates fan operation based on input from the engine coolant temperature sensor and vehicle speed.
The fan is not energized during engine cranking regardless of the electrical input from the engine coolant temperature sensor. However, if engine operating conditions warrant fan engagement, the fan will run once engine starts.
The fan is energized whenever the engine is running and the air conditioning is selected on the temperature control panel.
If the A/C is not selected the fan operates when the coolant temperature is above 104°C (220°F). The same is true for vehicles not equipped with A/C. The fan will turn off when coolant temperature drops to 102°C (216°F).