WARNING: This page is about a different car, the 2008 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power, Ground, DLC, Traction Control Switch, Brake Pedal Position Sensor, and Indicators Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 2: Wheel Speed Sensors Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 3: Yaw Rate and Lateral Acceleration Sensor, and Brake Fluid Pressure Sensor Schematic