Radiator Cooling Fan Control Module: Description and Operation

SYSTEM DESCRIPTION

Cooling Fan Control:

Cooling fan Control
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, air conditioner system pressure and air conditioner ON signal. The control system has 3-step control [HIGH/LOW/OFF].

With the ignition key in the OFF position the cooling fans will operate for a maximum of 120 seconds if the engine coolant temperature reaches 96 °C (205 °F) or above.

Operation: