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.

The high voltage bus voltage is greater than 200 V 3.5 seconds after the contactors have been commanded open for 2 cycles.
This diagnostic must run and fail 2 times before the fault will set.