Description

DESCRIPTION

The alarm system offers the car protection against break-in by volumetric and perimetral supervision.

An electronic control unit controls:

• the state of the doors and bonnets, through switches in the locks (perimetral supervision)
• the presence of a moving object inside the passenger compartment, through volumetric sensors. (volumetric supervision)
• the integrity of the system power supply cables (direct from the battery and from the ignition switch)
• the activation of the ignition switch

The control unit has a diagnostic function that finds and memorises faults and failures of the control unit itself and the system components, and checks the integrity of the connection cables.

The control unit also memorises the number of activations and alarms that have taken place.

The control unit operation logic can be modified so as to conform to lawsconcerning alarm systems in force on the various Markets .

The electronic control unit also incorporates the siren and the emergency key; it is connected in the front, in the engine compartment, in front of the battery. The emergency key enables the cutting off of the system, for example, when making repairs or if the car is left off the road for long periods.

The receiver is an electronic device that receives the signal from the transmitter and incorporates the volumetric sensors: it is located in the front ceiling light. The volumetric sensors control there are no break ins into the car: they are both "double" sensors, with a sender and a receiver: the wave transmitted by one of them (sender) has to reach the other (receiver): if it does not an alarm signal is sent to the control unit.

The doors are controlled using the same switches as the door lock system. A special switch is located on the engine bonnet lock, whereas to signal that the boot is open the contact board connecting to the tailgate cables is used.

The deterrent LED is on the dashboard on the steering column covering: it indicates the state of the system(on, off etc.) and also any failures.

For further details see DESCRIPTION AND OPERATION: 5580E.

The alarm system control unit has a direct power supply, protected by a junction unit fuse and the power supply from the ignition switch protected by the fuse near the e.i. that also protects the injection system.

The remote control receiver has direct power supply lines and from ignition switch protected by two fuses of the junction unit.