Conditions for Running the DTC
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
The HVAC control module will run the DTC when either of the following conditions are met.
- The HVAC control module has completed a calibration/recalibration of the actuator.
- The HVAC control module commands the actuator to move.