WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power, Ground and MIL
Courtesy of GENERAL MOTORS CORP.
Fig 2: Engine Controls Data Sensors
Courtesy of GENERAL MOTORS CORP.
Fig 3: Accelerator Pedal Position (APP) Sensor
Courtesy of GENERAL MOTORS CORP.
Fig 4: Engine Controls Electronic Throttle Control