Circuit/System Description
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 hybrid/EV powertrain control module 1 monitors for the engine speed and drive motor torque to go below calibrated limits when the transmission is shifted into Neutral. The hybrid/EV powertrain control module 1 is part of the drive motor generator power inverter module and is not serviced separately.