Engine and Emission Control System Description - Radiator Fan Control
EF & EC-385prose procedureRadiator fan operation maps differ between SR20DE and SR20DET, and between air conditioner switch OFF and ON.
Radiator Fan Control
INPUT/OUTPUT SIGNAL LINE
The E.C.U. controls the radiator fan corresponding to the vehicle speed, engine temperature, and air conditioner ON signal. The control system has 2-step control [ON/OFF].