OnStar Schematics

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying OnStar Schematics (Power, Grounds, DLC, & Antennas)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Identifying OnStar Schematics (Inputs & Outputs)

Courtesy of GENERAL MOTORS CORP.