Data Link Connector: Operation
WARNING: This page is about a different car, the 2003 Dodge Intrepid, 2003 Chrysler Intrepid, 2003 Chrysler Concorde, and 2003 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
The data link connector (diagnostic connector links the DRB scan tool with the powertrain control Module (PCM). Refer to On-Board Diagnostics in SELF-DIAGNOSTICS article.