Radiator Cooling Fan Control Module: Description and Operation

Cooling Fan Control

Cooling Fan Control:

The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant pressure, and air conditioner ON signal. The control system has 2-step control [HIGH/OFF].

Cooling Fan Operation:

Cooling Fan Operation

Cooling Fan Relay Operation:

Cooling Fan Relay Operation

COMPONENT DESCRIPTION




The cooling fan at each speed when the current flows in the cooling fan motor as follows.