Conditions for Running the DTC

WARNING: This page is about a different car, the 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

DTC P2122, P2123, P2127, P2128

DTC P0697, P06A3 = Not set
Ignition = On or Engine Running
Ignition Voltage = Greater than 6.4 V

DTC runs continuously when the above conditions are met.

P2138

DTC P0697, P06A3, P2122, P2123, P2127, P2128 = Not set
Ignition Voltage = Greater than 6.4 V
Reduced Engine Power = Inactive

DTCs run continuously when the above conditions are met.