Conditions for Setting the DTC
WARNING: This page is about a different car, the 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
P0090
The ECM detects an open circuit in the high pressure fuel pump actuator low control circuit for 4 s.
P0091
The ECM detects a short to ground in the high pressure fuel pump actuator low control circuit for 4 s.
P0092
The ECM detects a short to voltage in the high pressure fuel pump actuator low control circuit for 4 s.
P00C8
The ECM detects an open circuit in the high pressure fuel pump actuator high control circuit for 4 s.
P00C9
The ECM detects a short to ground in the high pressure fuel pump actuator high control circuit for 4 s.
P00CA
The ECM detects a short to voltage in the high pressure fuel pump actuator high control circuit for 4 s.