Diagnostic Test

VERIFY DTC IS ACTIVE
NOTE:
Make sure the battery is fully charged before proceeding.
1. Turn the ignition on.
2. With the scan tool, read the active DTCs.
  Does the scan tool display: U0155-LOST COMMUNICATION WITH CLUSTER/CCN?
  
  Yes
  - Refer to U0155-LOST COMMUNICATION WITH CLUSTER/CCN for 3.6L or U0155-LOST COMMUNICATION WITH CLUSTER/CCN for 5.7L 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.