Scan Tool Method

Multiplex self-diagnostic system OBD-II DTCs are retrieved through Data Link Connector 3 (DLC3). DLC3 is located under left side of instrument panel. Connect scan tool to DLC3. Turn ignition on. Follow LEXUS or OBD-II scan tool instructions to retrieve DTCs. See MULTIPLEX DIAGNOSTIC TROUBLE CODE (DTC) DEFINITION  table. If DTC(s) is present, perform appropriate test. See DIAGNOSTIC TESTS .