2007-2013 Toyota Corolla How to Replace Cooling Fan Control Unit Module ECU ECM Yiannis Pagonis

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1. What is fan control module?
An A/C fan control module helps to control the blower that supplies air to the cabin of a vehicle, as well as the cooling fans. The module helps to make sure that the cool air that is produced within the A/C system of a car is blown into the cabin.
2. Cooling fans running for a long time?
The cooling fans under the hood of your car are designed to keep the components of the system at a lower temperature. Usually, these fans will come on when the system gets a bit too hot and the go off once the desired temperature is reached. If you notice that the cooling fans run for a very long time without shutting off, then the A/C fan control module may need to be replaced.
3. Cooling fans not running at all?
If the cooling fans are not coming on at all, then this may also be a sign that the fan control module is damaged. Without the cooling fans running properly, you will be at risk of having the car overheat. Running a car hot for a long period of time can lead to other damages like a blown head gasket.
4. Weakened air flow?
Since this relay works the blower motor as well, you may notice that the air flow in the cabin of the vehicle is significantly reduced. The module helps to regulate how hard the blower motor works when needed, which is why it will cease to work with this part. Having a weakened air flow can cause the cabin of the vehicle to become very warm. The only way to fix this issue is by getting the AC fan control module replaced.