GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Acadia - AWD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Power Moding Schematics
Figure 1:

IGN I/II
Object Number: 2077726 Size: FS
Figure 2:

IGN II/III
Object Number: 2077727 Size: FS