Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2013SIERRA 2500 2WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - BRAKES AND TRACTION CONTROLTRAILER BRAKE CONTROL MODULETESTING AND INSPECTION
2013 GMC Sierra 2500 2WD V8-6.6L DSL Turbo
Trailer Brake Control Module: Testing and Inspection
2013 GMC Sierra 2500 2WD V8-6.6L DSL TurboSECTION Testing and Inspection
Trailer Brake Control Module Programming and Setup
If the integrated trailer brake control module is replaced or if the module needs to be reprogrammed, refer to Service Programming System (SPS) Service Programming System (SPS).
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Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.