On-Board Diagnostic (OBD) with Scan Tool

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.

These self-tests should be used to diagnose the PCM and should be carried out in order.

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) Light Emitting Diode (LED) prove-out confirms power and ground from the DLC 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 to diagnosis no power to the scan tool.
If the scan tool does not communicate with the vehicle:
- verify the ignition is in the ON position.
- verify scan tool operation with a known good vehicle.
- refer to MODULE COMMUNICATIONS NETWORK to diagnosis no response from the PCM.
Carry out the network test. If the scan tool responds with no communication from one or more modules, refer to MODULE COMMUNICATIONS NETWORK . If the network test passes, read and record the continuous memory DTCs.
Clear the continuous DTCs and carry out the PCM self-test.
If DTCs are related to the concern, go to the DTC CHART .
If DTCs are not related to the concern, refer to DIAGNOSIS BY SYMPTOM .