Automatic A/C Diagnosis: Introduction
WARNING: This page is about a different car, the 2015 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
After air is taken in through the air selection damper, it is fed to the evaporator by the blower fan and motor and cooled. The air cooled by the evaporator is mixed appropriately with the warmed air which pass through the heater core to achieve a comfortable temperature. If the A/C does not operate or the cooled air is not discharged, the system components or relay may be faulty.