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Radiator Cooling Fan Control Module: Description and Operation

ENGINE OVER TEMPERATURE

System Description

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 4-step control [HIGH/MIDDLE/LOW/OFF].

The ECM controls cooling fan relays through CAN communication line.

Radiator Cooling Fan Control Module: Description and Operation

Cooling Fan Control:

Operation: