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Home >> Chevrolet >> 2019 >> Silverado 1500 LD WT, 4WD, Part Time T/Case Control, Gas >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Trailer Brake Controls >> Description and Operation >> Trailer Brake Controls Description and Operation >> Trailer Brake Power Control Module

Trailer Brake Power Control Module

The K133 Trailer Brake Power Control Module (TBPM) is a solid state power switching module that supplies power to the trailer brakes at the input command duty cycle. Diagnostic messages are sent from the TBPM to the CCM on a dedicated LIN bus.