Conditions for Running the DTC

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

The ignition voltage is greater than 11 volts.
The ECM driver transitions from ON to OFF or from OFF to ON.
DTCs P0480, P0481, P0691, P0692, P0693, and P0694 run continuously when the conditions above are met.