Diagnostic Test
- VERIFY THE DTC IS ACTIVE
- CHECK FOR BODY CONTROL MODULE (BCM) DTCS
- With the scan tool, read BCM DTCs.
Are there any BCM CAN Bus DTCs present?
Yes
- Refer to the BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX article and perform the appropriate diagnostic procedure.
No
- Go To 3
- With the scan tool, read BCM DTCs.
- CHECK FOR RF HUB DTCS
- With the scan tool, read Radio Frequency (RF) Hub DTCs.
Are there any RF Hub DTCs present?
Yes
- Refer to DIAGNOSIS AND TESTING and perform the appropriate diagnostic procedure.
No
- Go To 4
- With the scan tool, read Radio Frequency (RF) Hub DTCs.
- CHECK OTHER MODULES FOR DTCS
- With the scan tool, read DTCs.
Are there any other modules reporting implausible communication DTCs against the RF Hub?
Yes
- Replace and program the Radio Frequency (RF) Hub in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Using the schematics as a guide, check the IPC pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Instrument Cluster in accordance with the Service Information. Refer to REMOVAL .
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- With the scan tool, read DTCs.
- CHECK THE WIRING AND CONNECTORS
- The conditions necessary to set the DTC are not present at this time.
- Using the schematics as a guide, inspect the wiring and connectors specific to this module. Wiggle the wiring and connectors while checking for shorted and open circuits.
- Check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Check Service Bulletins for any possible causes that may apply.
Were there any problems found?
Yes
- Repair as necessary.
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Test complete.