WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Module, Power, Ground, MIL, and Serial Data Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 2: Engine Data Sensors - MAF and Engine Coolant Temperature Sensor Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 3: 5-Volt and Low Reference Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 4: CMP Sensors and Solenoids, Knock Sensors, and Crankshaft Position Sensor Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 5: Engine Data Sensors - Oxygen Sensors Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 6: Engine Data Sensors - Electronic Throttle Controls Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 7: Bank 1 Ignition Coils Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 8: Bank 2 Ignition Coils Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 9: Fuel Pump and Injectors Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 10: Evaporative Emissions and Fuel Tank Pressure Sensor Schematic