Trailer TPMS
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
The IPC provides a trailer TPMS display to indicate tire pressures in the trailer tires.
The IPC receives the trailer tire status message from the GWM over the HS-CAN3. The GWM receives the trailer tire status message from the GFM (trailer TPMS module) over the HS-CAN2.