Data Communication Schematics

WARNING: This page is about a different car, the 2008 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Power, Ground, and Low Speed GMLAN Serial Data Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: High Speed GMLAN Serial Data Schematic

Courtesy of GENERAL MOTORS CORP.