Normal Mode

NOTICE (LEXUS hand-held tester only):
When the diagnostic system is switched from normal mode to check node, 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 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 DLC3 at the lower left 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. Confirm the details of the DTCs.

NOTICE:
- 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 first time.
- Then repeat the simulation process again.
- When the program has been simulated twice, the MIL lights up and the DTCs are recorded in the ECM.