1. Turn the ignition key to the "ON" position, but do not start the engine.
2. Use the accelerator pedal to press and release the pedal five times within five seconds.
3. Turn the ignition key to the "OFF" position.
4. Wait 15 seconds, then turn the ignition key to the "ON" position without starting the engine.
5. The check engine light should now be off, indicating the code P0446 has been cleared.
If the check engine light remains illuminated after following these steps, it may be necessary to visit a Toyota dealership or reputable auto repair shop for further diagnosis and repairs.
Remember that fault code P0446 is related to the vehicle's evaporative emissions system (EVAP), and it is crucial for the system to function correctly for proper fuel efficiency and emission regulations. If the code persists or you notice any unusual changes in your vehicle's performance, it is recommended to consult a qualified technician for further assistance.
