GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Yukon Denali 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Hybrid Energy Storage Schematics
Figure 1:

Power, Ground and Data Communication
Object Number: 2075738 Size: FS
Figure 2:

Battery Modules, Manual Disconnect Lever
Object Number: 2075740 Size: FS
Figure 3:

Main Power Contactors
Object Number: 2075742 Size: FS