Vehicle System Controller (VSC)

The PCM, TCM and BECM are connected to a high-speed CAN to exchange information messages. The VSC is a software function integrated inside the PCM, and is responsible for vehicle system operation, generating and sending commands to initiate appropriate actions such as LOS modes when serious concern is detected. The PCM also stores DTCs along with the freeze frame PID related to the LOS action that was initiated. To retrieve DTCs from the PCM, carry out an on-demand and continuous memory self-test.