Sierra 1500 4WD V8-5.3L VIN B (2005)
Electronic Brake Control Module: Diagrams
Electronic Brake Control Module (ECBM) C1
Electronic Brake Control Module (ECBM) C2 (8600 GVW or Less w/Rear Disc Brakes
Electronic Brake Control Module (ECBM) C2 (Over 8600 GVW or Rear Drum Brakes