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.
P19FA
The hybrid/EV powertrain control module 2 detects the Coolant Pump Feedback circuit frequency is greater than 770 Hz.
P19FB
The hybrid/EV powertrain control module 2 detects the Coolant Pump Feedback circuit frequency is less than 8 Hz.
P19FC
The hybrid/EV powertrain control module 2 detects the Coolant Pump Feedback circuit indicated pump speed is greater than 50 RPM when the pump is not enabled.
OR
The hybrid/EV powertrain control module 2 detects the Coolant Pump Feedback circuit indicated pump speed is different than the commanded pump speed.