Conditions for Setting the DTC
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
B0223 01
The HVAC control module detects a short to battery in either air inlet control circuit.
B0223 02
The HVAC control module detects a short to ground in either air inlet control circuit.
B0223 04
The HVAC control module detects an open in an either inlet control circuit.