Some vehicles are equipped with 2 airbags, one of which (from the driver's side) mounted in the central part of the steering wheel, and the other - on the right side of the front panel of the passenger compartment. The system also includes a sensor and control unit mounted in the center of the car.
Driver Side Safety Module
The module consists of a packed cushion and a pumping device (reactor), which is located under the cushion and connected to it by an opening through which gas is supplied when a signal is received. The signal is supplied via a cable wound into a flexible spiral around the steering wheel shaft, regardless of the steering wheel angle. The cushion is inflated with nitrogen, which is formed as a result of the reaction of copper oxide and sodium azide.
Passenger side safety module
The module, located above the storage compartment, includes a pressurizer (reactor), a folded cushion, a reactor, and a trim panel. The passenger cushion is significantly larger than the driver's cushion. The outer finish of the cushion cover matches the trim of the front panel. The cover has a seam that breaks when gas is pumped into the cushion (the gas is formed as a result of the reaction of iron oxide and sodium azide).
Sensor and diagnostic unit
The unit provides power and airbag operation even when the battery is disconnected. The unit checks the status of the safety system. The system indicator lamp (aIR-BAG lamp) first lights up and goes out if the system is working properly. If the system is faulty, the lamp continues to light or flash (or a beep sounds). In this case, the car should be immediately taken to a service station for inspection.
Attention! Disable pneumatic safety systems.
Warning! Failure to take safety precautions may result in accidental deployment of the airbag and serious injury.
When performing any work near the steering column or any unit of the system, it is necessary to disable the airbags. To do this, do the following:
- set the wheels to the straight ahead position and turn the ignition key to the LOCK position;
- disconnect the battery from ground;
- start work after at least 90 seconds, i.e. after the time required for the capacitor to discharge.
When handling the airbag container, always keep the lined side of the container facing away from you. Never place the container with the lined side down. Never measure the resistance of any unit of the airbag system, as the airbag may be triggered by the ohmmeter battery.
Before performing welding work, disconnect the yellow airbag connector, which is located under the steering column near the switch cluster connector (from the driver's side) or a box for small items (from the passenger side).
It is prohibited to throw away the container with the pillow.