Diagnostic Test

CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Cycle the ignition on.
2. With the scan tool, erase and record the RF Hub DTCs.
3. Cycle the ignition off and wait one minute.
4. Cycle the ignition on.
5. With the scan tool, read the RF Hub DTCs.
  Does the scan tool display; U140E-00-IMPLAUSIBLE VEHICLE CONFIGURATION DATA RECEIVED as active?
  
  Yes
  - Go To 2
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CAN BUS DTCS SET IN BODY CONTROL MODULE (BCM)
NOTE:
Verify that the BCM has the correct vehicle configuration before proceeding with this test step.
1. With the scan tool, read the DTCs in the BCM.
  Are there any active CAN Bus DTCs present?
  
  Yes
  - Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX and perform the appropriate diagnostic procedure.
  No
  - Replace the Radio Frequency Hub in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
  - Perform the RADIO FREQUENCY HUB VERIFICATION TEST. Refer to STANDARD PROCEDURE .