Impreza Brighton Coupe AWD F4-2.2L SOHC (1997)
Radiator Cooling Fan Motor: Description and Operation
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The radiator fan is made of plastic. That is installed to the electric motor, and is located onto radiator straight by shroud.
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The vehicle without air conditioning has the radiator main fan only. Thus, the vehicle with air conditioning has the radiator sub fan, too.
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The ON-OFF control of the radiator fan is governed by the ECM which receives signals sent from the engine coolant temperature sensor.