Conditions for Running the DTC

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

P0451

DTC P0442 = Running
Ignition = Off

Frequency the DTC runs = 2 times - After the running conditions are met

P0452, P0453

DTC P1001, P1005, U18A2 = Not set
Ignition = On

Frequency the DTC runs = Continuously - After the running conditions are met

P0454

DTC P0442 = Running
Ignition = Off
Refueling Event Detected = No - For greater than 10 min

Frequency the DTC runs = Once - After the running conditions are met