Diagnosis of Powertrain CAN A and CAN C

P3200, P3201, P3202 

The diagnosis of the powertrain CAN A and CAN C data bus consists of several checks with their own fault codes.

If, during initialization of the CAN data bus, the CAN controller reports a CAN A or a CAN C initialization failure, a malfunction is detected and a minimum fault CANA is set.

If, after initialization of the CAN data bus, the CAN controller reports a CAN A or a CAN C failure for a calibrated period of time, a malfunction is detected and a maximum fault CANA is set.

If, after initialization of the CAN data bus, the CAN controller reports a CAN A or a CAN C bus-off state for a calibrated period of time, a malfunction is detected and a signal fault CANA is set.