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7.1. Wires and safety locks

Assembly block
The included chains at various provisions of a key
Ignition switch



Electric equipment is executed according to the single-wire scheme — negative conclusions of sources and consumers of the electric power are connected to a body of the car which performs function of the second wire.

Схема электрооборудования автомобилей ВАЗ-2115-20 (левая половина): 1 – блок-фары; 2 – противотуманные фары; 3 – датчик температуры воздуха; 4 – электродвигатель вентилятора системы охлаждения двигателя; 5 – колодки, подключаемые к жгуту проводов системы зажигания; 6 – выключатель подкапотной лампы; 7 – колодка для подключения к звуковому сигналу однопроводного типа; 8 – звуковой сигнал; 9 – датчик уровня омывающей жидкости; 10 – датчики износа колодок передних тормозов; 11 – датчик уровня масла; 12 – генератор; 13 – подкапотная лампа; 14 – датчик указателя температуры охлаждающей жидкости; 15 – стартер; 16 – аккумуляторная батарея; 17 – реле включения противотуманных фар; 18 – датчик уровня охлаждающей жидкости; 19 – датчик уровня тормозной жидкости; 20 – выключатель света заднего хода; 21 – моторедуктор очистителя ветрового стекла; 22 – датчик контрольной лампы давления масла; 23 – колодка для подключения к электродвигателю омывателя заднего стекла; 24 – электродвигатель омывателя ветрового стекла; 25 – комбинация приборов; 26 – монтажный блок. Условная нумерация штекеров в колодках
Fig. 7.1. Scheme of electric equipment of the VAZ-2115-20 cars (left half): 1 – block headlights; 2 – fog lights; 3 – air temperature sensor; 4 – engine cooling system fan electric motor; 5 – the blocks connected to a plait of wires of system of ignition; 6 – switch of a podkapotny lamp; 7 – a block for connection to a sound signal of single-wire type; 8 – sound signal; 9 – the sensor of level of the washing liquid; 10 – sensors of wear of blocks of forward brakes; 11 – oil level sensor; 12 – generator; 13 – podkapotny lamp; 14 – sensor of the index of temperature of cooling liquid; 15 – starter; 16 – rechargeable battery; 17 – relay of inclusion of fog lights; 18 – sensor of level of cooling liquid; 19 – sensor of level of brake fluid; 20 – backing light switch; 21 – motor-reducer of screenwash; 22 – sensor of a control lamp of pressure of oil; 23 – a block for connection to the electric motor of a washer of back glass; 24 – windshield washer electric motor; 25 – combination of devices; 26 – assembly block. Conditional numbering of plugs in blocks: And — blocks of block headlights; In — an electrogasoline pump block; With — blocks of the assembly block, the switch of ignition, a motor-reducer of screenwash; D — a plafond of illumination of salon

The scheme of electric equipment of the VAZ-2115-20 cars (without knots of a control system of the engine) and is submitted 2115-01 in fig. 7.1,
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Схема электрооборудования автомобиля ВАЗ-2115-01 (левая половина): 1 – блок-фары; 2 – противотуманные фары; 3 – датчик температуры воздуха; 4 – генератор; 5 – электродвигатель вентилятора системы охлаждения двигателя; 6 – датчик включения электродвигателя вентилятора; 7 – выключатель подкапотной лампы; 8 – колодка для подключения к звуковому сигналу однопроводного типа; 9 – звуковой сигнал; 10 – датчик уровня масла; 11 – датчики износа колодок передних тормозов; 12 – датчик уровня омывающей жидкости; 13 – свечи зажигания; 14 – датчик-распределитель зажигания; 15 – коммутатор; 16 – блок управления электромагнитным клапаном карбюратора; 17 – электромагнитный клапан карбюратора; 18 – концевой выключатель карбюратора; 19 – датчик скорости; 20 – стартер; 21 – аккумуляторная батарея; 22 – реле включения противотуманных фар; 23 – датчик уровня охлаждающей жидкости; 24 – датчик уровня тормозной жидкости; 25 – выключатель света заднего хода; 26 – датчик указателя температуры охлаждающей жидкости; 27 – подкапотная лампа; 28 – моторедуктор очистителя ветрового стекла; 29 – датчик контрольной лампы давления масла; 30 – колодка для подключения к электродвигателю омывателя заднего стекла; 31 – электродвигатель омывателя ветрового стекла; 32 – катушка зажигания; 33 – комбинация приборов; 34 – монтажный блок. Условная нумерация штекеров в колодках
Fig. 7.2. Scheme of electric equipment of the VAZ-2115-01 car (left half): 1 – block headlights; 2 – fog lights; 3 – air temperature sensor; 4 – generator; 5 – engine cooling system fan electric motor; 6 – sensor of turning on of the electric motor of the fan; 7 – switch of a podkapotny lamp; 8 – a block for connection to a sound signal of single-wire type; 9 – sound signal; 10 – oil level sensor; 11 – sensors of wear of blocks of forward brakes; 12 – the sensor of level of the washing liquid; 13 – spark plugs; 14 – ignition sensor distributor; 15 – switchboard; 16 – control unit of the electromagnetic valve of the carburetor; 17 – electromagnetic valve of the carburetor; 18 – trailer switch of the carburetor; 19 – speed sensor; 20 – starter; 21 – rechargeable battery; 22 – relay of inclusion of fog lights; 23 – sensor of level of cooling liquid; 24 – sensor of level of brake fluid; 25 – backing light switch; 26 – sensor of the index of temperature of cooling liquid; 27 – podkapotny lamp; 28 – motor-reducer of screenwash; 29 – sensor of a control lamp of pressure of oil; 30 – a block for connection to the electric motor of a washer of back glass; 31 – windshield washer electric motor; 32 – ignition coil; 33 – combination of devices; 34 – assembly block. Conditional numbering of plugs in blocks: And — blocks of block headlights; In — an electrogasoline pump block; With — blocks of the assembly block, the switch of ignition, a motor-reducer of screenwash; D — a plafond of illumination of salon

7.1a, 7.2 and 7.2a. Connections of knots of a control system of the engine see in the separate user manual and to repair of a control system of the engine with the distributed fuel injection.
The majority of power-supply circuits of electric equipment of the car is protected by fuses. The chain of a charge of the rechargeable battery, a chain of ignition and launch of the engine, generator (except for an excitement winding), windings of the relay of inclusion of headlights and the relay of system of blocking of locks of doors are not protected by safety locks.
Before replacing the fused safety lock, find out the reason of its combustion and eliminate it. When troubleshooting it is recommended to see the chains specified in tab. 7.1 which are protected by this safety lock.
In tab. 7.1 purpose of each safety lock is given, but on the concrete car there can be no chains (or devices) specified in the table.

Table 7.1  of the Chain, protected by fuses of the assembly block
safety lock No.
The protected chains
F1 (10 AND)
Lamps of tail fog light and control lamp of inclusion of tail fog light. Electric motors of cleaners of headlights (at the time of inclusion). Electric motor of a washer of headlights.
F2(10A)
Indexes of turn, the relay breaker of indexes of turn and the alarm system (in the mode of the alarm system). Control lamp of the alarm system.
F3 (7,5 AND)
Plafond of illumination of salon. Plafond of individual illumination of salon. Plafond of lighting of the luggage compartment. Ignition switch illumination lamp. Control lamp of "Check engine". Stoplight lamps. Route computer (or hours).
F4(20A)
Boss of connection of a portable lamp. Relay of inclusion of heating of back glass (contacts). Element of heating of back glass.
F5 (20 AND)
Sound signal. Relay of inclusion of a sound signal. Cooling system fan electric motor.
F6 (30 AND)
Electrowindow regulators. Relay of inclusion of electrowindow regulators (contacts).
F7 (30 AND)
Heater electric motor. Windshield washer electric motor. Electric motors of cleaners of headlights (in an operating mode). Lighter. Lighting lamp of a ware box. The relay of inclusion of heating back flew down (winding).
F8 (7,5 AND)
Right fog light.
F9 (7,5 AND)
Left fog light.
F10(7,5 A)
Lamps of marker lights on the left board. Control lamp of inclusion of dimensional light. Lighting lamps of registration plate. Podkapotny lamp. Switch of lighting of devices. Lamps of illumination of switches, devices, lighter, ashtray, control levers heater.
F11 (7,5 AND)
Lamps of marker lights on the right board.
F12(7,5A)
Right headlight (passing beam).
F13(7,5 A)
Left headlight (passing beam).
F14(7,5A)
Left headlight (driving beam) and control lamp of inclusion of driving beam of headlights.
F15(7,5A)
Right headlight (driving beam).
F16 (15 AND)
Indexes of turn, the relay breaker of indexes of turn and the alarm system (in the mode of the indication of turn). Backing light lamps. Relay of control of serviceability of lamps. Block of indication of the onboard control system. Combination of devices. Control lamp of emergency pressure of oil. Control lamp of the parking brake. Control lamp of level of brake fluid. Control lamp of the category of the rechargeable battery. Route computer (or hours). A winding of excitement of the generator (in the mode of launch of the engine)

Except safety locks of the assembly block there are three more fuses of a control system of the engine. They together with the controller and the relay of a control system of the engine are located under the journal shelf. Purpose of these safety locks see in the separate user manual and to repair of a control system of the engine.
On all schemes provided in the section "Electric equipment", color of wires is designated by letters, and the first letter is color of the wire, and the second — color of a strip on a wire (tab. 7.2).

  Table 7.2 Designation of Colour of Wires
Letter
Color
Letter
Color
Letter
Color
B
White
To
Brown
With
Gray
Blue
about
Orange
H
Black
Yellow
п
Red
 
 
3
Green
р
Pink
 
 

       PREVENTION
At car repairs and systems of electric equipment of the car it is necessary to disconnect a wire from the minus plug of the rechargeable battery surely.
It is not allowed to apply self-made crossing points instead of the fused safety locks or safety locks of other face value.
At verification of the scheme of electric equipment of the car it is not allowed to close on the mass of a wire (to check serviceability of chains for "spark") as it can lead to burn-out of current carrying paths of the assembly block.
At removal of the relay and safety locks in the assembly block it is not allowed to use metal screw-drivers as it leads to short circuit of conclusions of the relay and burn-out of current carrying paths on printed circuit boards of the assembly block.