Ford Workshop Service and Repair Manuals > F 450 2WD Super Duty V8-6.0L DSL Turbo VIN P (2006) > Brakes and Traction Control | Trailer Brakes | Trailer Brake Control Module | Component Information | Testing and Inspection | Initial Inspection and Diagnostic Overview

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Possible Causes

Fuse(s)

Circuit open

Circuit shorted

Corrosion

Pushed-out pins

Trailer brake control (TBC) module

Customer trailer

D1-D3

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