Air Delivery - Rear (C69)
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
The HVAC control module controls the distribution of air by the mode door actuator - auxiliary. The modes that may be selected are:
- AUTO
- Floor
- Bi-Level
- Vent
The desired rear air distribution mode can be selected with the Mode switch at the HVAC control - auxiliary. The HVAC control - auxiliary delivers the values to the HVAC control module via LIN-Bus. The HVAC control module controls the mode door actuator - auxiliary so that it drives the door to the calculated position. Depending on the position of the door, air is distributed through various ducts.