With Generic Scan Tool

1. Prepare the OBD II scan tool (complying with SAE J1978).






2. Connect the OBD II scan tool to the DLC 3 at the lower left of the instrument panel.
3. Turn the ignition switch ON and push the OBD II scan tool ON.
4. Use the OBD II scan tool to check the DTCs and freezed frame data and note them down. (For operating instructions, see the OBD II scan tool's instruction book.)
If there is no DTC in 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 TOYOTA hand-held tester) to check the DTCs, use 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 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.
- Check the 1st trip DTC using Mode 7 (Continuous Test Results) for SAE J1979.