April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data Communication Schematics

WARNING: This page is about a different car, the 2009 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DLC Power, Ground & Low Speed GMLAN Circuit Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: High Speed GMLAN Circuit Schematic

Courtesy of GENERAL MOTORS CORP.