Programming and Relearning

ENABLING/DISABLING THE ANSWERBACK FUNCTION
If the keyless entry system locks or unlocks the doors, the dome light flashes or illuminates, the hazard warning light flashes (hazard answerback function) and the horn sounds (horn answerback function). The hazard and horn answerback functions can be enabled or disabled according to the following procedure:

ENABLING/DISABLING THE HAZARD ANSWERBACK FUNCTION
The hazard answerback function can be enabled or disabled by one of the two following procedures.

[When the transmitter is used after connecting scan tool MB991502 to the data link connector or grounding data link connector terminal (1)]
Refer to SWS - On-vehicle Service.

[When only the transmitter is used]
1. Remove the ignition key.
2. Push the "LOCK" switch while holding the "UNLOCK" switch pushed for four to ten seconds.
3. If the "LOCK" switch and "UNLOCK" switch are released in that order, the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors are locked.
- Enable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are locked: The ETACS-ECU tone alarm will sound twice.

4. If the "UNLOCK" switch and "LOCK" switch are released in that order, the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the door are unlocked.
- Enable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound once.
- Disable the hazard answerback function when the doors are unlocked: The ETACS-ECU tone alarm will sound twice.

ENABLING/DISABLING THE HORN ANSWERBACK FUNCTION
1. Remove the ignition key.
2. Push the "UNLOCK" switch while holding the "LOCK" switch pushed for four to ten seconds.
3. If the "LOCK" switch and "UNLOCK" switch 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.