Possible Causes
WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
CHECK FOR ACTUATOR CIRCUIT TEST FAULT MESSAGES
CHECK FOR ACTIVE HVAC DTCS
CHECK FOR HVAC DOOR RECALIBRATION FAULT MESSAGES
MODE DOOR ACTUATOR/LINKAGE/DOOR
BLEND DOOR ACTUATOR/LINKAGE/DOOR
RECIRCULATION DOOR ACTUATOR/LINKAGE/DOOR