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.
P1F63
The high voltage as measured by the power inverter module does not decrease by 10V or greater within 0.1 seconds of commanding the discharge circuit ON.
P1F64
The module internal diagnostic circuit detects the discharge resistor circuit is OPEN.
P1F65
The module internal diagnostic circuit detects the discharge resistor circuit is shorted.