Toyota Corolla

1992-1998 of release

Repair and car operation



Toyota Corolla
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of cooling, heating
+ 5. Fuel, exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
- 12. Electric equipment
   12.1. Safety locks
   12.2. Burned-through crossing points
   12.3. Automatic switches
   12.4. Relay
   12.5. Breakers of indexes of turns / alarm system
   12.6. The combined switch
   12.7. The switches established on a steering column
   12.8. Lock of ignition and lock drum
   12.9. Switch of a heater of back glass
   12.10. Heater of back glass
   12.11. Radio receiver and loudspeakers
   12.12. Aerial
   12.13. Bulbs of headlights of head light
   12.14. Headlights of head light
   12.15. Replacement of bulbs
   12.16. System of day inclusion of headlights
   12.17. Engine of screen wipers
   12.18. Instrument guard
   12.19. Sound signal
   12.20. System cruise control
   12.21. System of the central lock
   12.22. System of window regulators
   12.23. Rear-view mirrors with the electric drive
   12.24. Safety airbag
   + 12.25. Electroschemes


12.24. Safety airbag

GENERAL INFORMATION

The additional system of passive safety which more often call a safety airbag, can be established in various options, as a standard component or established at will, depending on model of the car and the market of sales.

The airbag of safety is established to protect the driver and the passenger on forward sitting from receiving heavy traumas in case of a head-on collision.

This system consists of the airbags of safety established in the center of a steering wheel and on the right side of the dashboard, two sensors of collision established in front of the car (for release models till 1995) and the central sensor located in salon of the car.

On some models, pyrotechnic tension devices of seat belts are established in ordinary tension devices for a tightening of belts in case of a head-on collision.

Module of an airbag of safety

The module of an airbag of safety consists of the case with the obverse panel (airbag) and systems of filling of a pillow air which is established on a reverse side of the case over an opening through which air gets to a safety cushion, filling it almost instantly when the electric signal comes.

In a special way twirled wire which transmits a signal to the module of the driver, is called as a spiral wire.

The spiral wire is the flat tape, capable to see off an electric current which is twirled many times in order that she could transmit an electric signal, irrespective of the provision of a steering column.

Sensors

On release models till 1995 the system of an airbag of safety has three sensors: two sensors of collision in front of the car behind a bumper and are slightly higher than niches of wheels and the safety sensor which is located in the central electronic block of an airbag of the safety, established in the central console. On models of release of 1996, all sensors are established in the central electronic

Forward sensors of collision represent the switches reacting to pressure which close an electric chain in case of collision of sufficient force. The electric signal from sensors of collision is sent on the safety sensor located in the central electronic block of an airbag of safety which closes a chain and fills a pillow.

Central electronic block of an airbag of safety

The central electronic block of an airbag of safety turns on the safety sensor and the microprocessor which watches system work. It checks system of an airbag of safety each time at start of the engine, ignition an alarm bulb of AIRBAG on an instrument guard, and, switching off it if the system works normally. If in system of an airbag of safety malfunction is found, the bulb will light up, and will not die away, and the central electronic block will remember a malfunction code. If the alarm bulb of an airbag of safety АIRBAG lights up, and will not die away, it is necessary to give the car urgently to a repair truck for repair.

Tension devices of seat belts

Besides safety airbags, the additional system of passive safety can turn on also pyrotechnic tension devices of seat belts which it is put in action by means of the gas ballonchik located in natyazhitel of seat belts. Pyrotechnic natyazhitel work from a signal sent by the central electronic block of an airbag of safety, together with airbags, for giving to seat belts of a bigger tension and ensuring additional protection at collision.

WORK WITH THE ELEMENTS LOCATED NEAR ADDITIONAL SYSTEM OF PASSIVE SAFETY

Elements of additional system of passive safety


a). Primary latch is not closed
1. Edges
2. Secondary latch
3. Primary latch
b). Primary latch is closed
4. It is closed
с). The double latch is closed
5. It is closed

Each of sockets of connection of an airbag of safety uses system from two latches for increase of reliability of connection.
Prevention

Be accurate at a detachment of sockets of connection of an airbag of safety.


Sometimes, happens it is necessary to remove a steering wheel, a radio receiver or any other elements located near or on the dashboard. In this case, you should work in the close neighbourhood with wires and connections of additional system of passive safety.

Wires of additional system of passive safety are easy for distinguishing from others; they have brightly yellow isolation.

Do not disconnect sockets of connection of wires of additional system of passive safety, except cases when it is necessary for you to disconnect system. Also, do not use electronic instrumentations on system wires.

Always disconnect additional system of passive safety before the work beginning near elements or system wires.

Shutdown of additional system of passive safety


PERFORMANCE ORDER
1. Turn a steering wheel in the central situation, turn a key in the ignition lock in the situation Lock and get a key.
2. Disconnect a wire of the negative plug of the accumulator. Wait few minutes while the reserve condenser will be discharged.
3. Disconnect yellow sockets of connection at the basis of a steering column and on the right under the dashboard as it is described below.

Airbag of safety of the driver

PERFORMANCE ORDER
1. Remove the bottom panel of furnish of a steering column under the dashboard (see subsection 11.23) for receiving access to the socket of connection of an airbag of safety.
2. Disconnect the socket of connection of wires of an airbag of safety of the driver.

Airbag of safety of the passenger

PERFORMANCE ORDER
1. Open a glove compartment and uncover in a glove compartment for receiving access to the socket of connection of an airbag of safety (see subsection 11.20).
2. Disconnect the yellow socket of connection of the device of filling by air of an airbag of safety of the passenger.

Inclusion of additional system of passive safety

PERFORMANCE ORDER
1. After you disconnected an airbag of safety and performed necessary operations on repair or service, connect sockets of connection of airbags of safety of the driver and the passenger. Establish into place the bottom panel of furnish of a steering column and a cover in a glove compartment.
2. Connect a wire of the negative plug of the accumulator.
3. Turn a key in the ignition lock in the situation On and check, that the alarm bulb of an airbag of safety of AIRBAG lit up approximately for six seconds, and then went out.