Diagnostic Test

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
3. NOTE: A front door must remain open whenever checking or erasing Radio DTCs.
  NOTE: Diagnose and repair any BCM VIN or Communication DTCs before continuing with this test.
4. With the scan tool, record and erase the Radio DTCs.
5. Cycle the ignition switch from on to off, wait five seconds and then back to on.
6. Turn the Radio on and set the volume to 25.
7. Adjust the speakers to the front and center.
8. With the scan tool, read the active Radio DTCs.
NOTE:
A front door must remain open whenever checking or erasing Radio DTCs.

NOTE:
Diagnose and repair any BCM VIN or Communication DTCs before continuing with this test.

Did the DTC return?

Yes
- Go To 2
No
- Use the scan tool to read DTCs in all other modules. If any communication DTCs are present, perform the appropriate diagnostic procedure. Perform any Technical Service Bulletins that apply. If no problems are found, test is complete.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
PERFORM A RESTORE VEHICLE CONFIGURATION IN THE BCM
1. With the scan tool, perform the Restore Vehicle Configuration in the BCM.
2. With the scan tool, record and erase the Radio DTCs.
3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
4. With the scan tool, read the active Radio DTCs.
  Is the DTC active?
  
  Yes
  - Replace the Radio in accordance with the Service Information. Refer to RADIO, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .