WARNING: This page is about a different car, the 2005 Saturn Ion Red Line, 2005 Saturn Ion 3, 2005 Saturn Ion 2, and 2005 Saturn Ion 1. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power, Ground, and BPMV Controls Schematics
Courtesy of GENERAL MOTORS CORP.
Fig 2: Traction Control, DLC, and Indicators Schematics