• Close-up photo of 2008-2009 Chevrolet Silverado 1500 trailer brake control module 20850923, VIN-programmed to resolve DTC C1112 and stabilize towing brakes with visible connectors and frame mount.
  • VIN-programmed 2011-2012 Yukon XL TBCM, part 20791897. Shows the module and connectors, a direct-fit solution to clear trailer brake system errors.

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