Circuit/System Verification
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Ignition ON, observe the scan tool Inside Air Temp. Sensor or the appropriate Duct Actual parameter. The reading should be between -35 and +98°C (-39 and +208°F) and change with inside passenger compartment or upper/lower air duct air temperature changes.