Normal Mode

MALFUNCTION INDICATOR LIGHT (MIL) CHECK



1. The MIL comes ON when the ignition switch is turned ON and the engine is not running.
- If the MIL lamp does not light up, troubleshoot the combination meter.

2. When the engine is 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

NOTICE (For Toyota hand-held tester only):
- When the diagnostic system Is switched from normal mode to check node, it erases all DTCs and freezed frame data recorded in normal mode. So before switching modes, always check and record the DTCs and freezed frame data.

1. Prepare the OBD II scan tool (complying with SAE J1978) or Toyota hand-held tester.



2. Connect the OBD II scan tool or Toyota hand-held tester to DLC3 in the fuse box at the lower left of the instrument panel.
3. Turn the ignition switch ON and turn the OBD II scan tool or Toyota hand-held tester switch ON.
4. Use the OBD II scan tool or Toyota hand-held tester to check the DTCs and freezed frame data. Note them down.
- For operating instructions, see the OBD II scan tool's instruction book.

5. Refer to "Trouble Code Descriptions" to confirm the details of the DTC.

NOTICE: When simulating symptoms with an OBD II scan tool (excluding Toyota hand-held tester) to check the DTCs, use normal mode. For codes on the DTC chart subject to '2 trip detection logic', turn the ignition switch OFF after the symptoms have been simulated the for 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.