Network Message Chart
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
TBM Network Input Messages
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| ABS active | ABS Module | When the TBM receives this message, it adjusts the PWM signal sent to the trailer brakes to aid in the ABS event. |
| ABS fault | ABS Module | Alerts the TBM of possible system failures in the ABS. |
| Brake on / off switch | PCM | Used to inform the TBM the driver has pressed the brake pedal. The TBM uses this message to activate the trailer brakes. |
| Illumination dimming level | BCM | The TBM dims or brightens the display based on current dimming levels. |
| Trailer brake configuration | IPC | This message informs the TBM of the current IPC configuration for trailer brake messages. |
| Trailer brake control request | ABS Module | This message communicates the trailer brake output request to the TBM during a trailer sway or other stability control braking event. |
| Vehicle speed | PCM | This message informs the TBM of the current vehicle speed. The TBM adjusts the PWM signal sent to the trailer brakes in proportion to the current amount of vehicle deceleration. |