192004651 - E7015 ALARM - DESCRIPTION (Right hand drive)

Description

The alarm system offers volume-sensing and perimeter protection against intrusion into the vehicle.

A special control unit (integrated in the body computer) checks:

• the state of the doors and lids, via switches in the catches (perimeter control)
• the presence of a moving object inside the passenger compartment, by means of volumetric sensors. (volumetric control);
• an attempt to tilt the vehicle;
• operation of the ignition switch.

The control unit is equipped with a self-diagnostic function which detects and memorises faults and problems in the control unit and system components; in addition, it checks the condition of the connecting cables and saves the number of activations and times the alarm has been operated.The control unit operating logic can be modified in order to satisfy the legal requirements which govern the use of alarm systems in the various markets.For more details Description and Operation 5580E ANTI-THEFT SYSTEM .All the outside components are connected to the Body Computer by means of a dedicated serial line.The alarm siren is located at the front, under the wheel arch liner on the left of the engine compartment.The door lock system switches are used to monitor the doors and boot.A special separate switch detects bonnet closure.The volumetric sensors check that there are no intrustions in the vehicle. They are located in the front courtesy light: they consist of a transmitter and a receiver: the wave transmitted by one transmitter must reach the receiver of the other sensor and viceversa: otherwise an alarm signal is sent to the control unit.The function may be activated/deactivated by pressing a key next to the sensor: when the function is excluded, an LED next to the button is turned on.The anti-tilt sensor, is located in the front courtesy light; it detects the slightest variation in the angle of the vehicle in relation to either the longitudinal axis or the vertical axis. When the button next to the sensor is pressed the function can be switched on/off: when the function is excluded, an LED next to the button is turned on.The deterrent LED is located to the side of the driver''s door safety knob: it signals the "central locking" function    See E3040 CENTRAL LOCKINGWith the alarm on the LED flashes at 0.8 Hz to indicate that the vehicle is locked.

The deterrent function is also activated if one or more of the doors or the boot is not properly shut.

The remote control receiver aerial is connected directly to the Body Computer which contains the actual electronics for the receiver..