Conditions for Setting the DTC
WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
The engine control module (ECM) detects that the actual measured airflow from the two MAF, MAP, turbocharger boost, and the throttle position sensors are not within a range of the calculated airflow that are derived from the system of models by greater than a calibrated threshold for greater than 10 s.