The Engine Control Module (ECM) not only monitors the operation of many sensors and switches in the vehicle but also ensures that the vehicle provides passenger comfort. Because multiple factors can alter the speed of the vehicle, some systems adjust the speed according to the environment. One such system is Cruise Control.
P0572 OBDII diagnostic code refers to a failure of the cruise control circuit or brake switch “A”. In this case, it is because it has encountered a low voltage in the circuit. The “A” designation may refer to a specific connector, wire, or harness. For this reason, you should consult with the source of information to determine what this code refers to.