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Trailer Brake Control Module: Description and Operation

Auxiliary Brake System - Trailer Brake Control (TBC) Module

Trailer Brake Controller System
The trailer brake controller system consists of the following components:
^ Trailer brake control (TBC) module
- manual slider switch
- gain switches
- light emitting diode (LED) display
^ Brake pressure transducer
^ Circuitry
^ Fourteen-pin connector

The trailer connectivity status, gain setting and relative trailer braking power during a braking event are provided to the driver through the LED display in the TBC module.

The brake pressure transducer is part of the master cylinder assembly.

The TBC module is normally a factory installed item, but it can be dealer installed. If the module is dealer installed, a new master cylinder with a brake pressure transducer must also be installed and the instrument cluster must be reconfigured to communicate with the TBC module.