WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Main Power Contactors Wiring Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 2: Drive Motor Generator Power Inverter Module Power and Data Communication, High Voltage A/C Compressor Control Wiring Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 3: Accessory DC Power Control, Hybrid Power Steering Wiring Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 4: High Voltage Interlock Circuit (HVIC), Contactor Control Circuit Wiring Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 5: Drive Motor with Generator Assembly - 1st Position Wiring Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 6: Drive Motor with Generator Assembly - 2nd Position Wiring Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 7: Transmission Pump and Range Signals Wiring Schematic