Blend Door Actuator: Operation
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
The blend door actuator is connected to the body control module (BCM) through the vehicle electrical system by a dedicated five-wire lead and connector of the HVAC wire harness. The blend door actuator can move the blend-air door in two directions. A potentiometer within the actuator allows the BCM to know the exact position of the blend-air door at all times.
The blend door actuator can be diagnosed using a DRBIII® scan tool. Refer to BODY DIAGNOSTIC PROCEDURES - EXCEPT COUPE article for more information.
The blend door actuator cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.