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Programming and Relearning

ENABLING/DISABLING THE ANSWERBACK FUNCTION

Required Special Tools:
- MB991529: Diagnostic trouble code check harness
- MB991958: Scan Tool (MUT-III Sub Assembly)
- MB991824: Vehicle Communication Interface (V.C.I.)
- MB991911: MUT-III Main Harness B

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 GROUNDING DATA LINK CONNECTOR TERMINAL 1>
1. Enter the hazard answerback customize mode by observing one of the following steps. If the ETACS-ECU enters the customize mode, its tone alarm will sound once.

CAUTION: Turn the ignition switch to the "LOCK" (OFF) position and then connect data link connector terminal 1 to ground.




1. Connect the data link connector terminal 1 to ground.
2. Close the driver's side door.
3. Leave the windshield washer switch on for at least ten seconds. Then the ETACS-ECU tone alarm will sound once.

2. If the transmitter "LOCK" button is pushed consecutively twice within two seconds, 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.

3. If the transmitter "UNLOCK" button is pushed consecutively twice within two seconds, the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors 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.

4. Exit the hazard answerback customize mode by observing one of the following steps.

CAUTION: Turn the ignition switch to the "LOCK" (OFF) position and then disconnect data link connector terminal 1 from ground.

1. Disconnect data link connector terminal 1 from ground.
2. Turn the ignition switch to position other then "LOCK" (OFF), or remove the ignition key.
3. Open the driver's side door,

NOTE: If any operation is not done for at least three minutes after the ETACS-ECU has entered the customize mode, the hazard answerback customize mode will be canceled automatically.

[WHEN THE TRANSMITTER IS USED AFTER CONNECTING THE VEHICLE COMMUNICATION INTERFACE (V.C.I.) MB991824 TO THE DATA LINK CONNECTOR>
1. Enter the hazard answerback customize mode by observing one of the following steps. If the ETACS-ECU enters the customize mode, its tone alarm will sound once.






CAUTION: Turn the ignition switch to the "LOCK" (OFF) position and then connect vehicle communication interface (V.C.I.) MB991824 to the data link connector.

1. Connect the vehicle communication interface (V.C.I.) MB991824 to the data link connector.
2. Close the driver's side door.
3. Leave the windshield washer switch on for at least ten seconds. Then the ETACS-ECU tone alarm will sound once.

2. If the transmitter "LOCK" button is pushed consecutively twice within two seconds, 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.

3. If the transmitter "UNLOCK" button is pushed consecutively twice (within two seconds), the ETACS-ECU tone alarm will sound, indicating that the hazard answerback function can be enabled or disabled when the doors 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.

4. Exit the hazard answerback customize mode by observing one of the following steps.

CAUTION: Turn the ignition switch to the "LOCK" (OFF) position and then disconnect vehicle communication interface (V.C.I.) MB991824 from the data link connector.

1. Disconnect vehicle communication interface (V.C.I.) MB991824 from the data link connector.
2. Turn the ignition switch to position other then "LOCK" (OFF), or remove the ignition key.
3. Open the driver's side door,

NOTE: If any operation is not done for at least three minutes after the ETACS-ECU has entered the customize mode, the hazard answerback customize mode will be canceled automatically.

[HOW TO ADJUST HAZARD ANSWERBACK WHEN THE TRANSMITTER IS USED TO LOCK DOORS]
1. Remove the ignition key.
2. Push the "UNLOCK" button and then push the "LOCK" button within 4 seconds to 10 seconds.
3. Release the "LOCK" button within 10 seconds after Step 2 and then release the "UNLOCK" button. 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.

[HOW TO ADJUST HAZARD ANSWERBACK WHEN THE TRANSMITTER IS USED TO UNLOCK DOORS]
1. Remove the ignition key.
2. Push the "UNLOCK" button and then push the "LOCK" button within 4 seconds to 10 seconds.
3. Release the "LOCK" button within 10 seconds after Step 2 and then release the "UNLOCK" button. 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" button and then push the "LOCK" button within 4 seconds to 10 seconds.
3. Release the "LOCK" button within 10 seconds after Step 2 and then release the "UNLOCK" button. 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 "LOCK" button is pressed with the doors locked.
**: The horn will sound if the doors are locked with the keyless entry system.
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