Pinpoint Test A : The Pcm Does Not Respond To The Scan Tool: Notes

WARNING: This page is about a different car, the 2015 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostic Overview

Diagnostics in this service information 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 - 2.0L GTDI 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 TIVCT 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.