With Generic Scan Tool

MALFUNCTION INDICATOR LAMP (MIL) CHECK
1. The MIL comes on when the ignition switch is turned ON and the engine is not running.

HINT: If the MIL does not light up, troubleshoot the combination meter.

2. When the engine started, the MIL should go off. If the lamp remains on, the diagnosis system has detected a malfunction or abnormality in the system.


DIAGNOSTIC TROUBLE CODE (DTC) CHECK
1. Prepare the OBD II scan tool (complying with SAE J1978).









2. Connect the OBD II scan tool to the DLC3 at the lower left of the instrument panel.
3. Turn the ignition switch ON and push the OBD II scan tool switch ON.
4. Use the OBD II scan tool to check the DTCs and freeze frame data and note them down. (For operating instructions, see the OBD II scan tool's instruction book.) If there is no DTC in the normal mode, check the 1st trip DTC using Continuous Test Results function (Mode 7 for SAE J1979) on the OBD II scan tool.
5. See "Trouble Code Descriptions" to confirm the details of the DTCs.

NOTE:
- When simulating symptoms with an OBD II scan tool (excluding LEXUS hand-held tester) to check the DTCs, use the normal mode. For code on the DTC chart subject to "2 trip detection logic", perform the following either action.
- Turn the ignition switch OFF after the symptom is simulated the 1st 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.
- Check the 1st trip DTC using Mode 7 (Continuous Test Results) for SAE J1979.