Sierra Denali RWD V8-6.2L (2009)
1 - Trailer Brake Control Relay (JL1)
2 - Trailer Brake Control Module (JL1)
3 - Trailer Connector (Except MEX/EXP)
4 - Fuel Pump Flow Control Module
5 - Data Link Resistor (Except LU3/LY6)
Rear Frame and Underbody Components (20/30 Series)