Pinpoint Test A : The Pcm Does Not Respond To The Scan Tool: Notes
WARNING: This page is about a different car, the 2018 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic Overview
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.
Refer to Module Communications Network , for schematic and connector information.
Refer to Electronic Engine Controls - 3.5L GTDI , for schematic and connector information.
Refer to Electronic Engine Controls - 3.7L Ti-VCT , for schematic and connector information.
Normal Operation and Fault Conditions
The PCM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN). An IDS session cannot be established if the PCM communication fails when attempting to identify the vehicle.