< When only the transmitter is used >
- Remove the ignition key.
- Push the "UNLOCK" button while holding the "LOCK" button pushed for to ten seconds.
- If the "LOCK" button and "UNLOCK" button are released at the same time, the ETACS-ECU tone alarm will sound, indicating that the horn answerback function can be enabled or disabled.
- Enable the horn answerback function*: The ETACS-ECU tone alarm will sound once.
- Disable the horn answerback function**: The ETACS-ECU tone alarm will sound twice.
- Enable the horn answerback function**: The ETACS-ECU tone alarm will sound three times.
NOTE:- *: The horn will sound if the doors and tailgate are locked with the keyless entry system.
- **: The horn will sound if the doors and tailgate are already locked and the keyless entry system is used.