Section 1600 (Engine Control System & Fuel System - Hybrid (Hp2) 6.0L (LZ1) - Wiring Schematic And Emission Hose Routing Diagrams)
WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.