Data Link Connector
WARNING: This page is about a different car, the 2003 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.
OBD-II regulations (SAE J-1962) standardizes configuration of Data Link Connector No. 3 (DLC3). DLC3 is located under driver's side of instrument panel, left of steering column. See Fig 1.