Diagnostic Test

CHECK FOR AN ACTIVE DTC 

1. With the scan tool, read DTCs.

   Is the DTC active?

   Yes 

   • Perform the diagnostic test procedure for CAN Interior Bus. Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX .

   No 

   • Perform the diagnostic test procedure for Stored Lost Communication DTCs. Refer to STORED LOST COMMUNICATION DTCS .