No CAN2 communication
â–¶ How to fix
Check whether other units connected to the same CAN bus receive CAN data. Check the continuity in the cable harness with a multimeter.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
No CAN communication from the vehicle FMS CAN, external CAN bus (2).
Possible cause
Fault on CAN bus cable harness, connections or terminals. Incorrect CAN messages may have been sent from other control units. The CAN bus may be busy.