Retrieving Diagnostic Trouble Codes
DTCs are retrieved using a Tech 2 scan tool, or other OBD-II compatible scan tool connected to OBD-II 16-pin Data Link Connector (DLC). See Fig 1. The DLC is located under the instrument panel to the left of the steering column. The DLC is used to connect to a scan tool. Some common uses of the scan tool are identifying stored DTCs, clearing the DTCs, performing output control tests and reading the serial data. Follow the instructions supplied by the scan tool manufacturer to read DTCs accurately. See DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS .