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Home >> Cadillac >> 2017 >> Escalade Base, 4WD >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> Trailer Brake Control System >> Diagnostic Information and Procedures >> DTC C1112-C1114 or C111B: Trailer Brake Power Control Module/Trailer Brake Control Solenoids Control Circuit >> Circuit/System Description
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Circuit/System Description

The K38A Chassis Control Module-Auxiliary receives inputs from the trailer brake power control module; these inputs are used to determine trailer connection and the amount of voltage supplied to the trailer brakes.