Sierra 1500 2WD V6-4.3L (2008)
Trailer Brake Control Module: Locations
Wheels/Vehicle Underbody Component Views
Left Rear Frame and Underbody Components (20/30 Series)
Left Rear Frame Rail (20/30 Series)
1 - Trailer Connector (UY7)
2 - Trailer Brake Controller Module (TBCM) (JL1)
3 - Trailer Brake Controller Solid State Relay (JL1)
Right Rear Frame and Underbody Components (31 Series)
