Scan Tool Method

Multiplex self-diagnostic system 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 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 .