Subaru Legacy/Outback

1999-2003 of release

Repair and car operation



Subaru Legasi, Autbek
+ Cars Subaru Legacy, Outback
+ The operation manual
+ Routine maintenance
+ The engine
+ Systems of cooling, heating
+ The power supply system and release
+ Engine electric equipment
+ Manual box and differential
+ Automatic transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Specifications
   Search of causes of failures of an electric equipment
   Safety locks - the general information
   Chain breakers - the general information
   The relay - the general information and check of serviceability of functioning
   Details of a lining of onboard electroconducting
   System of additional safety (SRS) - the device and a functioning principle
   Diagnostics of malfunctions SRS
   Removal and installation of components SRS
   Control system of speed (темпостат) - the device and a functioning principle
   Check of serviceability of functioning of components and problem diagnostics темпостата
   Removal, check of a condition and installation of components of a control system by speed
   Combination of devices - the general information and a principle of functioning of components
   Problem diagnostics of components of a combination of devices
   Removal, service and installation of a combination of devices, check of a condition of components
   Heating of back glass and rear-view mirrors - the general information, check of serviceability of functioning of components, regenerative repair of a thermoelectric heating element
   Heating of brushes of screen wipers - the general information, check of serviceability of functioning of components, regenerative repair of a thermoelectric heating element
   Removal, check of a condition and installation of switches of management by functioning of the electric drive of regulators Glass lifts
   The electric drive of rear-view mirrors - check of serviceability of functioning
   Removal check and installation of the switch of management by functioning of the electric drive of external rear-view mirrors
   Removal, check of a condition and installation of the switch of management by functioning of the electric drive of the top hatch
   Removal, check of a condition and installation combined подрулевых switches
   Check of serviceability of functioning of electromotors of a drive of screen wipers, removal, check and installation of the operating relay of a back screen wiper on models Legacy of Universal/Outback
   Check of the relay and switches of lighting and alarm devices
   Removal and installation of lighting devices, replacement of lamps
   Removal, check of a condition and installation of small horns and the horn switch
   Check of a condition and replacement of contact group of the switch of ignition
   The uniform lock - the device, a functioning principle, diagnostics of malfunctions
   Removal, check of a condition and installation of components of the uniform lock
   System иммобилизации the engine - the device, a functioning principle, diagnostics of malfunctions
   Removal and installation of components of system иммобилизации the engine
   Removal and installation of assemblage of a radio receiver
   Removal and installation of loudspeakers
   Check of a condition and regenerative repair of the window aerial of a radio receiver
   Removal, installation and check of a condition of the antenna amplifier of a radio receiver
   Removal and installation прикуривателя
   + Schemes of electric connections





System of additional safety (SRS) - the device and a functioning principle

The scheme an arrangement of components SRS

1 — the Forward gauge of the directed overloads
2 — a 7-contact socket of electroconducting SRS of yellow colour
3 — a 2-contact socket of electroconducting SRS of yellow colour
4 — the Module of a driver's face-to-face pillow of safety
5 — a 12-contact socket of electroconducting SRS of yellow colour
6 — the Module of a passenger face-to-face pillow of safety
7 — the Gauge of the directed overloads of lateral pillows of safety

8 — a 4-contact socket of electroconducting SRS of yellow colour
9 — the Module of management SRS
10 — a 28-contact socket of electroconducting SRS of yellow colour
11 — a 2-contact socket of electroconducting SRS of dark blue colour
12 — the Module of a driver's lateral pillow of safety
13 — a 2-contact socket of electroconducting SRS of yellow colour (for emergency натяжителя a seat belt)


The general information

The standard complete set of all models considered in the present Management includes system of additional safety (SRS) which basic elements are pillows of safety and emergency натяжители seat belts. The system provides additional protection of the driver and the forward passenger of the car at strong front and (at a corresponding complete set) lateral blows. In certain points of all cars equipped with system SRS the special information tablets warning the owner and mechanics HUNDRED about necessity to observe corresponding safety measures fasten during operation and vehicle service.

 

 

The scheme of an arrangement of components SRS on the car is presented on an illustration.

Safety pillows

Modules of face-to-face pillows of safety are located inside ступичной parts of assemblage of a steering wheel (a driver's pillow) and on the right under the panel of devices of the car (a passenger pillow). Lateral pillows of safety (at a corresponding complete set of the car) are built in in external lateral walls of backs of forward seats.

Control lamp SRS/AIR BAG, spring contact drum of assemblage concern number of other components SRS подрулевых switches, the module of management SRS with built in in it the central processor (CPU) both control and electric gauges, individual gauges of the directed overloads of pillows of safety and connecting electroconducting.


Principle of functioning of pillows of safety

 

At a head-on collision which sufficiency of intensity the processor (CPU) forward gauges on правленных overloads, and also the managements built in the module control and electric gauges provide short circuit of a chain of activation of face-to-face pillows of safety of the driver and the forward passenger.

 Necessary condition for operation of modules of pillows of safety is simultaneous short circuit of both chains built in the module of management SRS of gauges.


Control gauges of lateral pillows of safety are built in corresponding gauges of the directed overloads and work at registration of the directed lateral overloads exceeding certain value, - a simultaneity of operation of the gauge of an overload and the control gauge, besides, is an indispensable condition of activation of a pillow.

 


The module of management SRS

The module of management SRS is located in a forward part of the tunnel channel of the forward panel of a floor and provides power supplies giving to modules of pillows of safety at the moment of the collision causing strong enough directed overloads. System operation occurs even in case of emergency refusal of the onboard storage battery.

Interrogation of a condition of components SRS is made by the module at each start of the engine and accompanied by short-term operation of the control lamp built in in an instrument guard «AIR BAG/SRS». In case of an exit any of knots out of operation the control lamp after start realisation is not disconnected. Operation of a control lamp testifies to malfunction in system also during movement, - in a similar situation the car should be driven away as soon as possible on a car repair shop.


Gauges SRS

Forward gauges of the directed overloads

Gauges are established ahead of both forward wheel arches. Gauges have a pendular design, анкерный which knot at excess by the directed blow of some limiting admissible value turns and provides short circuit of a corresponding electric chain.


Lateral gauges of the directed overloads

The principle of operation of lateral gauges of the directed overloads is similar described above for forward gauges.

Control and electric gauges


Control and electric gauges are built in the module of management SRS, and also in assemblages of both lateral gauges of the directed overloads.

The control gauge, as well as gauges of the directed overloads, has a pendular design and acts in a role of a safety element at short circuit of corresponding chain SRS.

The electric gauge consists of the semi-conductor element sensitive to directed overloads which resistance changes depending on intensity of blow. The gauge allows CPU to estimate intensity of overloads arising at collision.


Modules of pillows of safety

Design of modules of face-to-face pillows of safety

1 — a safety Pillow
2 — Gazogenerator
3 — the Cover
4 — Gazogenerator
5 — the Bearing beam of a steering column

 


Pillow activation (ек) safety occurs under condition of simultaneous operation of corresponding gauges SRS (see above). Short circuit of a chain of the module of a pillow of safety leads to almost instant filling with last with the nitrogen allocated as a result of combustion порошкообразной of a mix азида of sodium with оксидом of copper. In case of failure of the onboard storage battery the system is switched to a food from the reserve source built in in module SRS and providing independent development of the electric power during even order of 20 seconds. The design of modules of pillows of safety is presented on illustrations.


Contact drum

The drum is established between a steering column and a steering wheel and represents the sliding contact made of a flat cable vein braided in the form of a spiral. By means of a contact drum giving of a food from a plait of electroconducting of a steering column to placed in a steering wheel nave (and consequently mobile) to the module of a driver's pillow of safety is provided.


Connecting electroconducting

Connecting wires SRS can be easily distinguished from other onboard electroconducting on bright yellow colour of isolation.

 Contact sockets SRS are painted in yellow, or dark blue colours (the Section Diagnostics of malfunctions SRS see).


Emergency натяжители seat belts

 оцедуры removals/installations emergency натяжителей, and also an order of their recycling are described in Section Seat belts - the general information, condition check, removal and installation, an order of recycling not worked emergency натяжителей.


Seat belts of both forward seats are equipped automatic emergency натяжителями which activation occurs at the command of the module of management SRS, developed on the basis of the analysis of the data arriving from forward gauges of directed overloads (under condition of short circuit of the built in control gauges). A design basis натяжителей make equipped built in газогенераторами assemblages of belts of returnable drums taking up tape.


Design emergency натяжителя a seat belt

1 — the Seat belt
2 — the Returnable device
3 — Leading up laths

4 — the Shaft
5 — Gas
6 — Torsionnaja a bar

At receipt of a corresponding command from the module of management SRS газогенераторы натяжителей are activated also a weak point of seat belts instantly gets out returnable devices. At excess by loading on a belt of some limiting admissible value built in assemblage натяжителя торсионная the bar is braided, weakening thereby the influence rendered by a tape of a belt on a thorax of the fastened driver/passenger.

On termination of operation emergency натяжителя the returnable drum remains is blocked also seat belt assemblage is subject to replacement.

Safety measures

Check of condition SRS should be made time of 10 years.

Dismantle and service of components of a steering column, radio receiver and the other components located near to the panel of devices demands observance of special safety measures as casual damage of electroconducting SRS can lead to unapproved operation of pillows of the safety, fraught with reception of serious traumas. Electroconducting SRS is easy for identifying on bright yellow colouring of isolation, - at all do not disunite its contact sockets and do not connect to them any electric diagnostic devices.

 Before to start performance of any works near to components SRS in necessarily order disconnect system!

The module of a pillow of safety removed from the car should be held a face sheet from itself, - transfer assemblage to a safe place and lay a face sheet upwards.

Do not try to make at all measurement of resistance of components SRS, - developed by the internal power supply of an ohmmeter of energy can quite enough for operation газогенераторов!

Before to use on the car any electronic equipment it is necessary to make necessarily switching-off SRS (see more low).

At all do not throw out never worked modules of pillows of safety in мусороприемники, - consultations on recycling of components SRS always can be received on car repair shops.

System SRS switching-off

For switching-off SRS make following manipulations:

a) Result operated wheels of the car in rectilinear position, turn the ignition key in position LOCK and take it from the lock;
b) Switch off ignition;
c) Disconnect from the battery at first negative, then positive wires.

 If the stereosystem established on the car is equipped by a security code before to disconnect the battery make sure that have a correct combination for audiosystem input in action!

d) Before to start performance of any works, wait not less than 20 seconds during which there should be a discharge of the condenser of emergency power supply SRS.

Activation SRS

For system activation connect to the battery at first a positive wire, then - negative, turn the ignition key in position and make sure of serviceability of operation of control lamp SRS.

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