Radiator Cooling Fan Control Module: Description and Operation

Radiator Fan Control Operation:

The ECU provides the ground signals to the radiator fan relays to control fan speed and operation based on signals supplied from the engine temperature sensor, A/C switch and vehicle speed sensor. A/T models except in Canada use a 2-step high/low speed control.

Radiator Fan Operating Conditions:

Refer to the figure for radiator fan operation operation.