WARNING: This page is about a different car, the 2004 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying System Air Flow & DEFROST Button

Courtesy of FORD MOTOR CO.

When DEFROST is selected:

The Recirc request button is disabled. The air inlet door actuator positions the air inlet door to admit only outside air into the passenger compartment.
The defrost door actuator positions the defrost door in the open position and the panel door, floor door, and cold air bypass door actuators (if equipped) position the panel door, floor door, and cold air bypass door (if equipped) in the closed position, directing airflow to the windshield defroster ducts and the side window demisters. A small amount of airflow from the outboard instrument panel A/C registers will be present.
The dual coolant control valve is automatically controlled by the DATC module based on the temperature settings.
The A/C request button is disabled. To reduce fogging, the A/C compressor will operate if the outside air temperature is above approximately 2°C (35°F).
The blower motor is on.

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.

Safety Warning

System Air Flow: Defrost

Use the Manual With the Right Hardware

When to See a Mechanic

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