Radiator Cooling Fan: Description and Operation
COOLINGDESCRIPTION
The Radiator Cooling Fan System is comprised of the Radiator Fan Control Module, Powertrain Control Module, and the Radiator Fan Motor. The Radiator Fan Control Module acts as the "relay" for the cooling fan circuit. The module is mounted to the inner fender. The Powertrain Control Module acts as the "input" to the module to command the fan operation. The radiator cooling fan is made up of a multiple bladed fan. The cooling fan motor is a high speed DC type.
OPERATION
The Radiator Cooling Fan is designed to keep the cooling system operating at a set temperature. The cooling fan operates when the engine coolant temperature exceeds 106 degrees Celsius or when the A/C has been requested on. The Powertrain Control Module sends an input to the Radiator Fan Control Module to activate the cooling fan. The Radiator Fan Control Module receives voltage from Fuse 2 (50 amp) in the Engine Fuse Block. The Radiator Fan Control Module is grounded through G100.