It is no possible to send messages on the third CAN bus CAN3
â–¶ How to fix
Check third CAN bus connection.
What you'll see
No driver-visible symptom recorded.
System reaction
C300 cant send CAN data on third CAN bus.
Diagnostic depth
Detection
If the buffer is full in C300 the fault code is set.
Possible cause
CAN bus is not correct connected or the CAN bus is over loaded so it is not possible to send any CAN messages.