Retrieving Diagnostic Trouble Codes: Notes

Turn ignition off. Connect scan tool to DLC located under left side dash panel. See Fig 1. To identify circuits and wire colors referenced in testing, see SYSTEM WIRING DIAGRAMS article. Turn ignition on. Enter program desired on scan tool screen.

Fig 1: Identifying Data Link Connector Terminals

Courtesy of NISSAN MOTOR CO., U.S.A.

An OBD-II scan tool complying with SAE J1978 has the following functions. For further information, see appropriate operation manual supplied by scan tool manufacturer.