With Manufacturer's Scan Tool

1. Prepare the Lexus hand-held tester.
2. Connect the Lexus hand-held tester to DLC3.
3. Turn the ignition switch ON and the Lexus hand-held tester main switch ON.
4. Check the DTCs and write them down. (When using the Lexus hand-held tester, see the hand-held tester's instruction manual).
5. See Diagnostic Trouble Code Chart to confirm the details of the DTCs.