Diagnostic Test
- VERIFY IF THE DTC IS ACTIVE NOTE:
Make sure the battery is fully charged before proceeding.
- Turn the ignition on.
- With the scan tool, read active DTCs.
Does the scan tool display this DTC as active?
Yes
- Refer to the DTC INDEX and perform the U0155-Lost Communication with Cluster/CCN diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.