ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Sensors and Switches - Cooling System > < Radiator|Service and Repair
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Radiator Cooling Fan Control Module: Description and Operation

OPERATION

The Powertrain Control Module (PCM) monitors coolant temperature, vehicle speed, and air conditioning status to determine if cooling fan
operation is required.  

When the PCM determines a need for cooling fan operation, it sends a signal to the Constant Control Relay Module (CCRM) to run the fan at the
required speed.

Sensors and Switches - Cooling System > < Radiator|Service and Repair