2889572 - E7030 AIRBAG - Description (ESP)

Description

The car is fitted with an electronically-controlled safety system which, in the case of a front-end crash of some severity, activates the driver's and passenger Air Bags.In the case of a side impact of a certain magnitude, the corresponding side Air Bag is activated (only on the side where the impact has taken place).The electronic control unit manages the entire system, checking all the components and when necessary activating the Air Bags.The control unit is situated on the floor in a central position under the dashboard, and is secured rigidly to the bodywork; in this way the deceleration sensors located inside it are near the baricentre and can detect precisely the deceleration of the entire car.There is an accelerometric sensor at the base of the two front door pillars which, in the case of a side impact, transmits a signal to the control unit.The driver's Air Bag module is located in the centre of the steering wheel; it is fitted on a rocker plate which allows the operation of the horns. The plate houses a metal container which holds the folded airbag and a gas generator that inflates the bag. A clockspring cable allows the Air Bag module connecting cables to follow the rotation of the steering wheel without the risk of breaking.The two passenger Air Bag modules (two gas generators which inflate a large single bag) are located in the dashboard, fixed directly to the vehicle crossmember by a special bracket.The passenger Air Bag can be manually deactivated via a special switch - which can be operated by a key - located above the dashboard in the driver's glove compartment.When the key is turned to OFF, the control unit also controls the activation of a passenger air bag disablement warning light on the instrument panel. The Side Bag is housed in the outer part of the front seat and is activated in the case of a side impact detected by the sensor.

The control unit comes with a self-diagnostic function.

• it detects and memorizes any faults
• it recognizes the various components and the type of fault
• it signals the presence of faults via a warning light.

System activations following a particularly serious impact are memorized by the control unit. For further details see  see DESCRIPTION AND OPERATION: 5580C  air bag system . The supply line for the system control unit is protected by a special fuse next to the junction unit.

there are two possible configurations for the system. - the "basic" configuration with a driver's Air Bag, side bags and two pretensioners. - the full configuration which also includes a passenger Air Bag and disabling device.

carefully observe the safety regulations when working on the Air Bag system. For further details see  see DESCRIPTION AND OPERATION: 5580C  air bag system "