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Home >> Cadillac >> 2018 >> Escalade Base, RWD >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Trailer Brake Controls System >> Diagnostic Information and Procedures >> Trailer Connection Not Recognized >> Circuit/System Description
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Circuit/System Description

The K38A Chassis Control Module-Auxiliary receives inputs from the K133 Trailer Brake Power Control Module; these inputs are used to determine trailer connection and the amount of voltage supplied to the trailer brakes.