Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Charger and 2015 Dodge Charger. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY THE DTC IS ACTIVE

NOTE:

For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

Turn the ignition on.
With the scan tool, read active DTCs.
Is the DTC active at this time?

Yes
- Refer to DTC INDEX and perform the U0002-CAN C Bus Off Performance diagnostic procedure.
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the Stored Lost Communication DTCs diagnostic procedure.