Diagnostic Test

VERIFY THE DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, read the DTCs.
  Is the DTC Active at this time?
  
  Yes
  - Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX and perform the appropriate diagnostic procedure.
  No
  - Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.