U0077-00-Control Module Communication Bus Off
WARNING: This page is about a different car, the 2018 Fiat 500L. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This DTC may not be listed in the Body Control Module (BCM) diagnostic procedures. If this DTC is not found in the BCM diagnostic procedures, perform the comparable CAN C1 Bus diagnostic test, such as C1 CAN-MISSING MESSAGE or C1 CAN BUS-BUS OFF.
Perform the comparable CAN C1 Bus diagnostic tests in the BCM. Refer to DTC TROUBLESHOOTING .