Conditions for Setting the DTC's
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 fuel pump power control module detects a difference of ± 60 kPa at 400 kPa request or ±45 kPa at 300 kPa request between the desired fuel pressure and the actual fuel pressure for approximately 10 s.