Data Link Connector (DLC) Schematics (Data Link Connector (DLC (1 of 2))
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Data Link Connector (DLC) Schematics (DLC (1 of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Data Link Connector (DLC) Schematics (DLC (2 to 2)