Ultrasonic Sensors; Ultrasonic Sensitivity Adjustment - Directed Electronics Avital Maxx3 Installation Manual

Ultrasonic Sensors

1. Choose a location at the top of the A-pillar on both driver and passenger sides.
2. Mount the sensors using the screws provided or by inserting the mounting tabs between the dashboard and
windscreen pillar.
3. Angle the sensors towards the top centre of the rear window. If mounted at the top of the A-pillars make
sure the ultrasonic position does not affect use of the sunvisor.
4. Route the sensor cables to the control module and plug-in.

Ultrasonic Sensitivity Adjustment

1. Follow the instructions for entering program mode on page 19. Enter program branch number 19 on page 20
listed as "Ultrasonic Sensor Test and Adjustment Mode."
2. Once in this mode the system LED will flash ON and the siren will chirp if movement is detected inside the
vehicle.
3. The sensitivity adjuster is found on the side of the main Alarm/Immobiliser Control Unit. Insert a small screw-
driver into the adjustment hole and turn the screw clockwise to increase sensitivity or anti-clockwise to
decrease sensitivity.
4. Move your arm through an open window on the vehicle as if attempting to remove an item from the seat.
The LED should illuminate and the siren should chirp to detect the movement. If it does not, then increase
the sensitivity in small increments until the optimum position is reached and the sensors do pick up the
movement. Do not over adjust the sensors as the system will false alarm. The sensitivity level should be left
at the minimum setting where the sensors pick up movement in the rear seating position.
5. When satisfied with the final sensitivity setting, you may exit Installer Ultrasonic setup mode by either
turning off the ignition or by pressing any remote control button. Program mode exit will be confirmed by
two siren chirps (one short and one long chirp).
©
2002 Directed Electronics, Inc.
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