Legacy Sedan 2WD F4-2.2L SOHC (1990)
Radiator Cooling Fan Motor: Description and Operation
RADIATOR FAN
The radiator fan is made of plastic. That is installed to the electric motor, and is located onto radiator straight by shroud.
The vehicle without air conditioning has the radiator main fan only. Thus, the vehicle with air conditioning has the radiator sub fan, too.
MECHANISM AND FUNCTION
1. General
The engine cooling system consists of a cross-flow radiator which features high heat-dissipation performance, an electric motor fan, a water pump,
a thermostat, and a thermometer. The reserve tank is designed to eliminate the need for replenishing coolant.
On models without an air conditioner, the ECU sends an ON or OFF switch signal to the radiator fan in response to signals from the thermometer
and speed sensor. On models with an air conditioner, the ECU sends ON or OFF, and Lo (low) or Hi (high) switch signals to the radiator fan and
A/C fan in response to signals from the thermometer, speed sensor and A/C switch.