Radiator Cooling Fan Control Module: Description and Operation
Cooling Fan Control:
SYSTEM DESCRIPTION
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.