Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Ok the first thing I would recommend would be to verify that the fuse labeled HVAC 1. The next item I would be interested in would be the actual electric actuator that moves the door in the hvac box. The problem is that most of the dash needs to be removed to access this point. The actuator itself is located on the passenger upper side of the havc box. This electric actuator is a common failure in this model. We would need to access the actuator to see if the actuator is moving, and also to verify that the heater door is not broken. Here is an overview of what you will need to do to access this actuator. Feel free to contact me with any questions! Good luck!
Important: Always disconnect the brown electrical connector from the body control module (BCM) before disconnecting the purple electrical connector from the BCM.
Important: Label all of the connections in order to avoid improper installation.