Data Link Connector: Description
WARNING: This page is about a different car, the 2006 Chrysler Crossfire. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of DAIMLERCHRYSLER CORP.
The Data Link Connector (DLC) (1) is located at the lower edge of the instrument panel (3) near the hood release (2). The exposed connector terminals are protected by a plastic cover which flips open if access is needed.