Pinpoint Test C : The BCM Does Not Respond To The Scan Tool: Notes
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 Grounds , for schematic and connector information.
Refer to Power Distribution/BCM , for schematic and connector information.
Refer to Module Communications Network , for schematic and connector information.
Normal Operation and Fault Conditions
The Body Control Module (BCM) communicates with the scan tool through the High Speed Controller Area Network (HS-CAN) and communicates with the other modules through the Medium Speed Controller Area Network (MS-CAN).
Visual Inspection and Diagnostic Pre-checks
Verify high current BJB fuse 1 (100A) is OK.