Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
The ECM detects a corrupted data message from the Power Supply Transformer. Communication of the Alive Rolling Count from the Power Supply Transformer over CAN bus is incorrect for at least 10 counts for greater than a 3 s period.