Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 185 (HVAC CONTROL SYSTEM - GENERAL INFORMATION)DESCRIPTION AND OPERATIONCLIMATE CONTROL SYSTEMSYSTEM AIRFLOW DESCRIPTION - EATCAUTO
2009 Mercury Milan Premier, 3.0 1, AWD
System Airflow Description - EATC: Auto
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Auto
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
When AUTO is selected:
- the temperature control setting is manually set to the desired setting.
- the air inlet door actuator is automatically controlled by the EATC module, based on the temperature setting.
- the mode door actuators are automatically controlled by the EATC module based on the temperature setting.
- the A/C compressor is automatically controlled by the EATC module based on the temperature setting. The A/C compressor will not operate if the outside temperature is below approximately 6°C (43°F).
- the A/C request button or the RECIRC request button, if pressed, will transfer the system to semi-auto operation.
- the blower motor is ON. The blower motor speed is automatically controlled by the EATC module based on the temperature setting, but can be manually overridden.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.