With Manufacturer's Scan Tool

Check the DTC

NOTE: LEXUS hand-held tester only: When the diagnostic system is switched from normal mode to check mode, it erases all DTCs and freeze frame data recorded in normal mode. So before switching modes, always check the DTCs and freeze frame data, and note them down.




1. Prepare an OBD II scan tool (complying with SAE J1978) or LEXUS hand-held tester.
2. Connect the OBD II scan tool or LEXUS hand-held tester to DLC3 at the lower of the instrument panel.
3. Turn the ignition switch ON and turn 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 DTCs and freeze frame data and note them down (For operating instructions, see the OBD II scan tool's instruction book).
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 normal mode. For codes on the DTCs chart subject to "2-trip detection logic", turn the ignition switch OFF after the symptoms have been simulated the 1st time. Then repeat the simulation process again. When the program has DTCs, the DTCs are recorded in the ECM.