Pinpoint Test Ac : The TRM (Trailer Module) Does Not Respond To The Diagnostic Scan Tool: Notes
WARNING: This page is about a different car, the 2015 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
The Trailer Module (TRM) Does Not Respond To The Diagnostic Scan Tool
Refer to Wiring Diagrams MODULE COMMUNICATIONS NETWORK for schematic and connector information.
Refer to Wiring Diagrams TRAILER/CAMPER ADAPTER for schematic and connector information.
Normal Operation and Fault Conditions
The TRM communicates on the MS-CAN 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 MS-CAN.
Visual Inspection and Diagnostic Pre-checks
Verify RJB fuse 10 (40A) is OK.