Pinpoint Test Ag : The GFM (Generic Function Module) Does Not Respond To The Diagnostic Scan Tool: Notes
WARNING: This page is about a different car, the 2017 Ford Police Interceptor Utility and 2017 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Module Communications Network for schematic and connector information.
Refer to Police Option for schematic and connector information.
Normal Operation and Fault Conditions
The GFM communicates on the HS-CAN3, and communicates with the diagnostic scan tool through the HS-CAN2. Diagnostic messages are sent/received through the HS-CAN2 circuits at the DLC, and translated through the GWM to the HS-CAN3.
The GFM is only available with the Police option.
Possible Sources
- Fuse
- Wiring, terminals and connector
- GFM
Visual Inspection and Diagnostic Pre-checks
Verify BCM fuse 20 (7.5A) is OK.