Inspection and Verification

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

Verify the customer concern.
If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
NOTE: Make sure to use the latest scan tool software release.

If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.

If the scan tool does not communicate with the VCM:
- check the VCM connection to the vehicle.
- check the scan tool connection to the VCM.
- refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no power to the scan tool.
If the scan tool does not communicate with the vehicle:
- verify the ignition key is in the ON position.
- verify the scan tool operation with a known good vehicle.
- refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the PCM.
Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
- If the network test passes, retrieve and record the continuous memory DTCs.
Check the Body Control Module (BCM) and make sure the Daytime Running Lamps (DRL) configuration is enabled.
For vehicles with a manual transmission, check the operation of the brake warning indicator by applying and releasing the parking brake.
- If the brake warning indicator does not operate correctly, refer to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
For vehicles with an automatic transmission, check the operation of the PRNDL display by placing the gear selector lever in each of its positions.
- If the PRNDL display does not operate correctly, refer to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
If the DTCs retrieved are related to the concern, refer to DIAGNOSTIC TROUBLE CODE (DTC) CHART . For all other DTCs, refer to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULES .
If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .