AIRBAG - Description
- Make
- Fiat
- Model
- Multipla Factory Service Manual
- Year
- 1998–2010
- Section
- Vehicle electronic systems › AIRBAG - Description
AIRBAG - Description
Description
The car may be fitted with an electronically-controlled safety system that sets off the front seat belt pretensioners and the driver's air bag, passenger air bag and sidebags in the case of frontal and/or side impact of a certain severity.
In the case of a side impact of a certain magnitude, the corresponding side Air Bag and Window Bags are activated (only on the side where the impact has taken place).
An electronic control unit manages the entire system by controlling all the components and activating the restraint systems (pretensioners and airbags) as necessary.
The control unit is located under the centre console and is rigidly fixed to the bodyshell: in this way the deceleration sensors located inside it are close to the centre of gravity and detect deceleration for the entire vehicle accurately.
There is an accelerometric sensor on the two front door pillars which, in the case of a side impact, transmits a signal to the control unit. This signal is also processed inside the control unit which, as a result, decides on the operation of the Side Bag and Window Bag on the side where the impact has taken place.
The driver's Air Bag module is located in the centre of the steering wheel; A clock spring device allows the airbag module connection leads to turn with the steering wheel without the risk of breakage.
The two front Air Bag modules have two stage operation: the first stage is for slight impacts and the second stage for more severe impacts. The two stages have two separate charges which inflate the bag to 60% (first stage) and 40% (second stage).
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.
With the key in the OFF position, the control unit also controls the operation of the special 'passenger Air Bag disabled' warning light.
The Side Bag is housed in the outer part of the exterior front seats.
The window bags take the form of a curtain which inflates and positions itself between the occupant's head and the side windows. The folded bag is located under the roof panel, whilst the rear pillar houses the gas generator.
The front seat pretensioners are devices built into the front seat belt reel.
The belt fitted to the central front seat is equipped with a mechanical pretensioner: see Characteristic of working principle 7065 SEAT BELTS AND ACCESSORIES.
The control unit is self-diagnostic.
- it detects and memorizes any faults
- it recognizes the various components and the type of fault
- it signals the onset of these faults via the special warning light.
System activations following a particularly serious impact are memorized by the control unit.
For more details Characteristic of working principle 5580C air bag system.
The supply line for the system control unit is protected by a special fuse next to the junction unit.
When operations are carried out to the Air Bag system the recommended safety instructions must be followed precisely. For more details Characteristic of working principle 5580C air bag system
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.
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.
The driver's Air Bag module is located in the centre of the steering wheel; it is fitted on a tilting plate which enables the horn to be operated. 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 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 onset of these faults via the special warning light.
System activations following a particularly serious impact are memorized by the control unit.
For more details Characteristic of working principle 5580C air bag system.
The system control unit supply line is protected by a special fuse located next to the junction unit.
there are two possible configurations for the system. - the 'standard' configuration. includes the driver's Air Bag and two pretensioners. The complete configuration also includes a passenger Air Bag and disabling device.
carefully observe the safety regulations when working on the airbag system. For more details Characteristic of working principle 5580C air bag system
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 "
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.
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.
The driver's Air Bag module is located in the centre of the steering wheel; it is fitted on a tilting plate which enables the horn to be operated. 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 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 onset of these faults via the special warning light.
System activations following a particularly serious impact are memorized by the control unit.
For more details Characteristic of working principle 5580C air bag system.
The system control unit supply line is protected by a special fuse located next to the junction unit.
there are two possible configurations for the system. - the 'standard' configuration. which includes a driver's Air Bag and two pretensioners. The complete configuration also includes a passenger Air Bag and disabling device.
carefully observe the safety regulations when working on the airbag system. For more details Characteristic of working principle 5580C air bag system
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 tilting plate which enables the horn to be operated. 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 onset of these faults via the special warning light.
System activations following a particularly serious impact are memorized by the control unit.
For more details Characteristic of working principle 5580C air bag system.
The system control unit supply line is protected by a special fuse located next to the junction unit.
there are two possible configurations for the system. the standard configuration, where there is a driver's Air Bag, Side Bags and two pretensioners. the comprehensive configuration also includes a passenger Air Bag and disabling device.
carefully observe the safety regulations when working on the airbag system. For more details Characteristic of working principle 5580C air bag system
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