Using Lexus Scan Tool

On 1999 models, connect scan tool to Data Link Connector No. 2 (DLC2) , located under left side of instrument panel. See Figure. On 2000 models, connect scan tool to 16-pin Data Link Connector No. 3 (DLC3) , located under left side of instrument panel. On all models, turn ignition on. Using scan tool screen prompts, retrieve DTCs. Identify DTC and perform appropriate diagnostic test. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION  table. After replacing or repairing malfunctioning components, clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES .