2889536 - E7015 ALARM - Description

Description

The alarm system offers volumetric and perimeter protection.

In effect, an electronic control unit checks:

• the status of doors, boot and bonnet via switches in the locks (perimeter control)
• the presence of a moving object inside the passenger compartment, via volumetric sensors (volumetric control)
• the condition of the system supply cables (both directly from the battery and those controlled by the ignition)
• the operation of ignition switch

The control unit is equipped with a self-test function which detects and memorizes faults in the control unit itself and the system components and also checks the condition of the connecting cables.The control unit also memorizes the number of times the alarm is activated and set off.The control unit operating software may be altered to meet regulations governing the use of alarm systems applicable in different markets.The electronic control unit, which also incorporates the siren, is located at the front, under the wheel arch to the left of the engine compartment.The receiver is an electronic device which receives the transmitter signal. It is located in a concealed position under the dashboard.

It is connected to the control unit via the serial line and directly manages the following system functions:

• it receives, decodes and manages the remote control signals
• it locks and unlocks the doors
• it stores the codes of enabled transmitters.

The receiver also has its own autodiagnostic function which detects and memorizes faults in the actual receiver and the components connected to it and it checks the condition of the connecting cables.The same switches as for the central locking system are used to control the doors and lids. A special switch is also located on the bonnet catch. The control unit also produces a 'doors open' signal, activated if even only of the doors is not properly shut, sent to the instrument panel  See E4010  INSTRUMENT PANEL . The volumetric sensors check for car intruders. They are located near the front courtesy light.The deterrent LED is in the centre of the dashboard and signals the status of the system (on, off, etc.) plus any faults. For further details see  Characteristic of working principle 5580E  anti-theft device . The alarm system control unit has direct supply lines and lines controlled by the ignition protected by two fuses in the junction unit., such as the remote control unit receiver.The alarm system control unit and the remote control receiver has direct supply lines and lines controlled by the ignition, protected by three fuses located in the junction unit.