223003430 - E7030 AIR BAG - DESCRIPTION (MY 2005)

The vehicle is equipped with an electronically controlled safety system which, in the case of a frontal impact of a certain severity, activates the driver side Air Bag (single activation stage) and the passenger.side air bag (double activation stage).In the case of a fairly serious side impact, the Side Bag (only on the side where the impact took place) is activated.The safety device also includes two pretensioners, one on the driver side and one on the passenger side.An electronic control unit manages the entire system controlling all the components and activating the Air Bag protection systems (airbags and pretensioners) when necessary.An accelerometric sensor on the pillar of both front doors transmits a signal to the control unit in the case of a side impact.This signal is also processed inside the control unit, which may then decide to activate the Side Bags on the side where the impact was detected.The control unit is located under the centre console and is securely fastened to the bodyshell: in this way the deceleration sensors located inside the unit are near the centre of gravity and detect the deceleration for the entire vehicle accurately.The driver side air bag module is located in the middle of the steering wheel. It is fitted on a tilting plate that is also used to control the horns.The plate houses a metal container that contains the folded bag and the gas generation device that inflates the bag.A clock spring allows the connecting cables for the Air Bag module to follow the rotation of the steering wheel without danger of breaking.The passenger Air Bag module is located in the dashboard, above the glove compartment and is fastened directly to the vehicle crossmember through a special bracket.The passenger air bag may be deactivated manually by means of a special switch.The switch that can be operated by means of the vehicle ignition key is located on the passenger side facia and may be accessed only with the door open.With the key OFF the control unit also controls activation of a special "passenger air bag disabled" warning light.The side bag is housed in the external part of the front seat. The associated sensor is located on the central pillar.The control unit is equipped with an autodiagnostic function:- it detects and stores faults;- it recognises the various components and the fault type;- it indicates the onset of faults by means of the special warning light.The activation of the system following a particularly serious impact is memorized by the control unit.The supply line for the system control unit is protected by a fuse located in the junction unit under the dashboard.The airbag system may assume different configurations (with more or fewer components) according to the vehicle specification. The system described is the most comprehensive.The vehicle is equipped with a S.B.R. (Seat Belt Reminder) system consisting of a buzzer that notifies the driver that his seat belt is unfastened complemented by a flashing seat belt unfastened warning light on the instrument panel.For safety reasosn, a buzzer has been installed that reminds the driver to fasten the seat belts. This buzzer does not sound if the seat belts are unfastened with reverse engaged.