Toyota Yaris 2006 radio code SEC Displaying after changing battery.
In case this helps anyone, I used the default code 320.
Works for Toyota Yaris 2006 YRX:
ONLY IF THE RADIO IS DISPLAYING "SEC":
1. Place the ignition switch to “ACC” position
2. Hold the Seek ^ button and push the Number 1 button. “_ _ _” will display.
3. Press Number 1 button for the first digit, Number 2 button for the second digit and Number 3 button for the third digit.
4. TRY THE DEFAULT CODE: 320.
5. Press Number 1, until number 3 appears.
6. Press Number 2, until number 2 appears.
7. Press Number 3, until number 0 appears.
8. Press and hold the SCAN button within 10 seconds. If successful SEC will appear again and disappear from display.
9. Turn on radio.
