Opening of the main pillows (driver and front passenger) occurs in the case of frontal (±30°from the longitudinal axis of the vehicle) collisions, and additional (side airbags installed as an option) - and side impacts.
Deployment of the driver's airbag in the event of a collision.
The vehicle airbag system consists of the following components:
- driver airbag module;
- passenger airbag module;
- driver's side airbag module (option);
- passenger side airbag module (option);
- driver and front passenger belt pretensioners (and load limiter for some models) (option);
- display and diagnostic unit (BID);
- clock spring;
- wiring harness and connectors;
- airbag malfunction indicator (AIRBAG) on the instrument cluster;
- side airbag sensor.
Driver Airbag Module
The driver's airbag module is located under the center trim on the steering wheel. The module includes an igniter and a gas generator designed to (almost instantaneous) inflate the folded airbag.
Caution: Manipulating the driver's airbag module creates a risk of injury from unexpected deployment. Therefore, the driver's airbag module cannot be dismantled, and in case of replacement, it is disposed of according to a special method.
Passenger Airbag Module
The airbag module is located in the glove box lid on the dashboard opposite the passenger. The airbag module also has an igniter and a gas generator to inflate the folded airbag.
Side airbag module (option)
Side airbag modules are located on the sides of the driver's and passenger's seatbacks. The side airbag module has an igniter and a gas generator to inflate the folded airbag.
Front seat belt pretensioners (option)
Seat belt pretensioners (with load limiter for some models) are installed with each seat belt pretensioner and are designed to instantly tighten the seat belt belt at the time of a frontal collision. Seat belt pretensioners are controlled by the display and diagnostic unit (BID). The seat belt pretensioner has an igniter and a gas generator to tension the seat belt.
Caution: Manipulating the seat belt pretensioner creates the risk of injury from unexpected activation. The seat belt pretensioner must be replaced after an accident that activated it.
Display and diagnostic unit (BID)
Warning. During maintenance, be careful when handling the BID. Avoid impacts and do not shake the BID. Do not connect the power supply unless the unit is securely fastened to the vehicle. All bolts must be tightened to the recommended torque and the arrow on the block must point forward (along the car). A energized but loose BID may move, causing the airbag to deploy unexpectedly, resulting in injury.
The unit is located on the bottom under the floor console assembly. BID performs the following functions:
- monitors the electrical components of the auxiliary inflatable safety system and sets a diagnostic trouble code when a malfunction is detected;
- records any faults found;
- when a scanner is connected, displays diagnostic trouble codes and system status information;
- turns on the airbag indicator to warn the driver of any malfunction, provides additional power to deploy the airbag if the original power source was damaged in an accident;
- monitors and analyzes changes in vehicle speed (acceleration) and issues a command to put the pillows into action;
- allows airbags and seat belt pretensioners to deploy in the event of a severe frontal impact.
The unit is not repairable and must be replaced after the system is triggered. If water has penetrated into the interior of the car, for example, due to driving on water, in the event of flooding or for any other reason, it is also necessary to replace the BID and its connector.
The airbag malfunction indicator is located on the instrument cluster.
When the ignition is turned on, the indicator flashes seven times and goes out. This indicates that the BID performs a test by briefly connecting with «weight» indicator light circuit. If after that the indicator goes out, it means that no problems have been detected and the system is functioning normally.
If the indicator remains on, this indicates a malfunction in the internal or external circuit, which may affect the operation of the security system.
Caution: If a system malfunction is detected, immediately contact an authorized service station to diagnose and correct this problem. Further operation of the car with this malfunction is unacceptable, as this can lead to the operation of the airbags at any time and to their failure when necessary.