1.15.22 Diagnosis of Local CAN B

P3203 (CANBmax), P3204 (CANBmin), P3205 (CANBsig) 

The diagnosis of the local CAN B 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 B initialization failure, a malfunction is detected and a CANBmin fault will be set.

If, after initialization of the CAN data bus, the CAN controller reports a CAN B failure for a calibrated period of time, a malfunction is detected and a CANBmax fault will be set.

If, after initialization of the CAN data bus, the CAN controller reports a CAN B bus-off state for a calibrated period of time, a malfunction is detected and a CANBsig fault will be set.