Diagnostic Test
CHECK FOR AN ACTIVE DTC
NOTE:
Make sure the battery is fully charged before proceeding.
- Turn the ignition on.
- With the scan tool, create a Vehicle Scan Report and attach it to the repair order.
- With the scan tool, read active DTCs.
Is the DTC active?
Yes
- Perform the Lost Communication with Cluster/CCN diagnostic procedure in the BCM. Refer to U0155-00-LOST COMMUNICATION WITH CLUSTER/CCN .
No
- Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .