With Generic Scan Tool

DIAGNOSTIC TROUBLE CODE (DTC) CHECK

1. Prepare the OBD II scan tool (complying with SAE J 1978) or LEXUS hand-held tester.
2. Connect the OBD II scan tool or LEXUS hand-held tester to DCL 3 in the fuse box at the lower left of the instrument panel.
3. Turn the ignition switch ON and switch the OBD II scan tool or LEXUS hand-held tester switch ON.
4. Use the OBD II scan tool or LEXUS hand-held tester to check the DTC and freeze frame data, note them down. (For operating instructions, see the OBD II scan tool's instruction book.)
5. Refer to Diagnostic Trouble Code Descriptions to confirm the details of the DTC.
Diagnostic Trouble Code Descriptions

NOTICE: When simulating symptoms with an OBD II scan tool (excluding LEXUS hand-held tester) to check the DTC, use normal mode. For codes on the DTC chart subject to "2 trip detection logic", turn the ignition switch OFF after the symptom is simulated the first time. Then repeat the simulation process again. When the problem has been simulated twice, the MIL lights up and the DTCs are recorded in the ECM.