Schematic and Routing Diagrams

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Data Link Communications Schematic Icons

Courtesy of GENERAL MOTORS CORP.

Fig 2: Data Link Connector (DLC) Schematics (Power, Ground & Transfer Case Shift Control Module)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Data Link Connector (DLC) Schematics (Class 2 Serial Data)

Courtesy of GENERAL MOTORS CORP.