Of seat belts of seats of the driver and forward passenger are intended to Prednatyazhiteli for operation in response to strong blow in front.

If the sensor of the airbag defines blow from strong forward collision, natyazhitel quickly involve seat belts of front seats that belts strongly held the people sitting on front seats.

Natyazhiteli of seat belts of front seats work even if on front seats there are no passengers.

Fig. 1.101. Signaling device of serviceability of prednatyazhitel of seat belts of front seats

This signaling device is highlighted if the ignition key is turned in the provision of "ON". It dies away approximately through 6 pages. It means that prednatyazhitel of seat belts of front seats work normally.

This system of the prevention controls knot of sensors of airbags, sensors of forward airbags, sensors of side airbags, sensors of side and shtorkovy airbags, sensors of shtorkovy airbags, the sensor of provision of a seat of the driver, the switch of a buckle of a seat belt of a seat of the driver, knots of natyazhitel of seat belts of front seats, delivery devices, a control lamp, system of an internal electrical wiring and power supplies.

Fig. 1.102. System of prednatyazhitel of seat belts of front seats

The system of prednatyazhitel of seat belts of front seats consists of the following main components which arrangement is shown in the figure 1.102:

1. Sensors of forward airbags.

2. Control lamp of the SRS system.

3. Knots of natyazhitel of seat belts of front seats.

4. Knot of sensors of airbags.

Devices of a pretension of seat belts are operated in knot of the sensor of airbags. The knot of airbags consists of the sensor of admissible influence and the sensor of operation of pneumopillows.

At operation of prednatyazhitel of seat belts of front seats it is possible to hear working noise, and a small amount of the gas similar to smoke can be released. This gas is harmless and does not mean fire emergence.

After operation of natyazhitel of seat belts of front seats natyazhitel of seat belts remain blocked.

The signals of a signaling device of malfunction of a security system testifying to malfunction of the device of a pretension of seat belts are listed below.

– The light signaling device is highlighted if the key turns in the provision of "ON" or more than 6 pages continue to burn.

– The light signaling device is highlighted during the movement.

– The seat belt of a front seat is not involved, or not extended because of malfunction or activation of a natyazhitel of seat belts of front seats.