Data Link Connector (DLC)
Data Link Connector (DLC) Schematics: Power, Ground, And Class 2 Part 1:
Data Link Connector (DLC) Schematics: Power, Ground, And Class 2 Part 2:
"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes