Operation CHARM: Car repair manuals for everyone.

Radiator Fan

Radiator Fan

DESCRIPTION
Each radiator fan is made of plastic. It is driven by an electric motor which is retained on a shroud.





NON-TURBO MODELS





TURBO MODELS

FUNCTION
MODELS WITHOUT A/C





On turbo models the ON-OFF control and Hi-Low control of the radiator fan is performed by the ECM which receives signals from the engine coolant temperature sensor.

MODELS WITH A/C
On models equipped with an air conditioning system, the ECM receives signals from the engine coolant temperature sensor, vehicle speed sensor and A/C switch, and according to these signals, the ECM turns ON or OFF the radiator main fan and sub fan simultaneously (and also selects the Hi or Low fan speed in turbo model).





^ Non-turbo models





^ Turbo models

*1: When the intake air temperature is 76°C (1 69°F).
*2: When the intake air temperature is 78°C (1 72°F) or higher, the radiator fans perform "Hi-speed" operation for 10 minutes.