Repair of a vaz 2107 do it yourself electrician

In detail: do-it-yourself electrician repair of a vaz 2107 from a real master for the site my.housecope.com.

Domestic classics are not distinguished by legendary reliability. Sometimes various faults occur in the wiring that interfere with the normal operation of the engine. In this case, for the repair, you will need a color wiring diagram with a description, which allows you to understand all the nuances of the wiring. This article presents a diagram for the VAZ 2017 or 20174 models with a carburetor, produced from 1988 to 2001, on which the 37.3701 generator was installed.

Knowledge of the definitions of the 2107 Lada electrical circuit will help you quickly find the required wire, diagnose it, identify and eliminate the malfunction. Of course, when replacing the cabin filter or changing the oil, such information will not come in handy, but in specialized matters, the decoding of the designations will greatly simplify the repair process.

* On some models, headlight and windshield wipers are installed together.
** Models up to the year 2000.
*** Cars that rolled off the assembly line before 1998.
**** One canopy in the center of the roof (before 2000) or two lamps located in the body pillars after this date.

The electrical diagram for the VAZ 2017 is available in excellent resolution. The dimension of 2500 pixels high and 1243 pixels wide will allow the electrician to easily find all the necessary symbols and easily understand the electrical equipment of the machine. In this case, the weight of the photo will be 650 kb.

In addition, for the repair or tuning of the VAZ, you will need to know the serial numbers of the plugs in the pads. The electrical diagram of the VAZ 21074 gives the following designations:

Headlights, windshield and headlight wipers, power valve control unit, windshield wiper relay.
Mounting block and three-lever switch.
Signal and turn signals.
Rear headlights.
Alarm switch.

When connecting a generator or interfering with the wiring and ignition system of a VAZ, you should know the location of the fuse box in the car. There are 17 of them in total, of which 2 are reserve.

rear lamps for reverse gear;
headlight and glass washer pump motors;
heated rear window;
direction indicators, alarm;
fog lights;
tachometer, voltmeter, warning lights on the tidy;
cigarette lighter and clock;
sound signal;
interior lighting, brake lamps;
high beam headlights;
high beam warning lamp;
engine compartment lighting and license plate lighting;
illumination of the glove compartment;
low beam on the right;
low beam on the left.

Video (click to play).

The electrical diagram of a VAZ 2017 car will help in repair and maintenance. You can download a picture in high resolution following the link.

Author of the material: Dumchenkov Mikhail

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The electrical equipment of the VAZ 2107 is not the most reliable part of this car, in this heading we have collected all the answers on the repair of electrical equipment and electrical appliances

The fuel sensor is the most important component of a system for monitoring the level of working fluids. A faulty sensor transmits distorted information to the fuel gauge. As a result, the fuel gauge either does not work at all, or provides the car enthusiast with distorted fuel consumption data. Next, we will tell you how to diagnose a faulty VAZ 2107 injector fuel level sensor and give an algorithm for the subsequent replacement of a defective part. Signs and ...

The VAZ 2107 oil pressure sensor transmits information about the lubricant level to the warning lamp and in the event of engine malfunctions and sudden changes in fluid pressure on the dashboard, the corresponding diagnostic indicator lights up. An active warning lamp may indicate not only a malfunction of the oil supply system, but also a breakdown of the sensor itself. The spare part looks like this: In a retail car dealership such ...

The mass air flow sensor is one of the important elements of the control system for injection engines. A breakdown of the VAZ 2107 mass air flow sensor does not stop the engine, but significantly degrades its performance. Operation of the machine with an inoperative sensor is undesirable. At the first sign of a malfunction, it must be checked and, if necessary, replaced with a new one. The device and purpose of the DMRV VAZ 2107 Electronic engine control unit ...

Due to its low price and ease of maintenance, the VAZ "seven" is still one of the most popular models among Russian car owners. The factory equipment of the car, to put it mildly, is not oversaturated with options. Therefore, connoisseurs of convenience and comfort are finalizing it by installing additional elements. The central locking of the VAZ 2107 makes using the car easier and more pleasant, allowing you to open and close the doors with a key fob ...

While the car is moving, the VAZ 2107 speed sensor (injector) generates speed data sent to the electronic engine control unit. Its failure causes injection control errors and leads to a drop in engine power and an increase in fuel consumption. You can check and replace the sensor yourself. To do this, you need a garage with a viewing hole, a slotted screwdriver, a 22 wrench and a multimeter ...

The ignition relay VAZ 2107 is used to turn on the power supply of the ignition system on carburetor and injection modifications of the “seven”. Sometimes this part causes the machine to malfunction and has to be replaced. You can localize and fix the problem yourself, without resorting to the services of specialized service stations. This requires a minimum of tools and knowledge about where the relay is located and how to correctly ...

The car's electrical network is powered by two sources - a battery and a generator. The first activates the starter, the second energizes only after starting the engine. Like any part, the battery needs to be replaced over time. First of all, the ability to start the engine in frost depends on the condition of the battery. Therefore, the question "Which battery is better for a VAZ 2107 car?" from time to time they ask ...

One of the key elements of the contactless ignition system is the Hall sensor VAZ 2107. In case of a breakdown of this element, the operation of the machine is practically impossible, since the switch will not give out impulses for sparking. Let's see how this sensor works, how its malfunctions are manifested and how you can replace the Hall sensor with your own hands. The principle of operation of the Hall sensor The device is installed on ...

The task of the VAZ 2107 ignition system is to form a spark that ignites the air-fuel mixture in the cylinders. In the old “classic” models, this works on the basis of the “chopper-ignition coil” connection. On more modern cars, a contactless ignition system is installed, where the VAZ 2107 ignition switch is responsible for sparking. Switch malfunctions affect the efficiency and operability of the entire ignition system and the car as a whole. ...

On carburetor VAZ models, an electromagnetic valve is installed. Like any other part, the solenoid valve of the VAZ 2107 carburetor may stop working and require cleaning or replacement. You can do this yourself. No special tools, fixtures or skills are required. The device of the VAZ 2107 solenoid valve The VAZ 2107 solenoid valve is an electromechanical device that regulates the flow of a mixture of gasoline and air ...

The quality of its work depends on the serviceability of the components and systems of the car. Modern cars are crammed with electronics, so the electrical system requires a lot of attention. The article examines the wiring diagram of a VAZ 2107 car, signs of malfunction, and also discusses the features of carburetor engines and with an injector.

If the car refuses to drive, there are problems with electrical appliances or electrical wiring, this gives rise to troubleshooting by replacing defective elements.

If the car does not start, the first step is to check the flow of fuel to the carburetor or the fuel rail of the injector.

If fuel comes in, then the problem of a car's refusal to drive must be sought in the electrical system using an electrical circuit:

For a car with a carburetor, problems can be with the distributor, coil, spark plugs, as well as with electrical wiring. After checking the elements of the electrical circuit for serviceability, you need to replace the non-working components.
In a car with an injector, the problem may be due to a failure of the ECM (electronic engine control system). Thanks to it, the signals from the sensors are processed and commands are transmitted for execution to the units (video author - Alexander Skripchenko).

There may be problems due to burnt contacts in the ignition switch. To find faults, you need a diagram of the electrical equipment of a VAZ 2107 car, indicating the elements that are consumers of the contact group.

The operation of the engine with a carburetor has a classic scheme:

When the key in the ignition switch is turned to the "Starter" position, the electronic system supplies power to it.
The generator starts its work.
The generator transmits electrical current to the coil. It serves to obtain high-voltage currents. Low voltage currents are applied to the coil. Passing through the module, they are transformed into high-voltage ones and are transmitted through a high-voltage wire to the distributor.
Using high-voltage currents, the distributor drive rotates the crankshaft of the power unit. He, in order of priority, closes the contacts and applies an electric discharge to the candles.

The principle of operation is reflected in the wiring diagram of an engine with a carburetor.

Wiring diagram of the classics - carburetor

The contact system includes the following elements:

switch;
coil;
distributor;
high voltage wires;
candles.

Thanks to the distributor, the primary circuit of the ignition module is interrupted, and then the high-voltage current is distributed in the desired sequence to the spark plugs. The coil converts the low voltage current into high voltage current. The spark plugs ignite the fuel mixture in the engine cylinders.

Classic ignition system

If the engine does not start when the ignition key is turned, then the reason may be as follows:

An open in the electrical circuit between the generator and the coil. In this case, you need to check all contacts and the integrity of the wiring.
Coil defective. It can be checked with a spark: remove the wire from the distributor and touch the metal part. If a spark appears during operation of the power unit, it means that the module is working properly.
Break in the electrical circuit between the distributor and the candles. In this case, you need to check inside the distributor cover, the slider located there, the high voltage wiring connecting the distributor cover with the candles.

After identifying and eliminating a malfunction in the carburetor, the engine should start without problems, if the rest of the car is in good working order.

On some VAZ 2107 models, which were released after 1987, a contactless ignition system was installed. Although the car was more expensive, it was in demand. The innovation consisted in the fact that an electronic switch was installed between the distributor and the coil.

The non-contact ignition system includes:

switch;
ignition switch;
coil;
distributor sensor;
high voltage wires;
candles.

Contactless ignition system

With the help of the distributor sensor, control signals are transmitted to the switch for the formation of a spark and high-voltage pulses are distributed among the spark plugs. The function of the switch is to convert the control pulses from the proximity sensor into a pulse current, which is fed to the primary winding of the coil. Thus, it improves spark formation when the engine is running on a lean mixture.

The switch is tested with a spark. If, during the check, the distributor does not receive a high voltage pulse, then the switch is defective and requires replacement.

If, after replacing the switch with a new one, the problem remains, then it is necessary to replace the wiring with a VAZ 2107. Most likely, the reason lies in the high resistance of the wires of the wiring, this entails a weak spark formation.

The injection engine has the following differences from the carburetor one:

an electric pump, which serves to increase the pressure in the fuel system (there is no pressure in an engine with a carburetor, and the pump is installed mechanically);
the fuel mixture is formed in the cylinder itself, and in the classic version in the carburetor;
electric injectors are responsible for injecting fuel into the cylinders;
the moment when the injection of the mixture is required is determined by the ECM (the mixture enters the carburetor when the intake valve is opened).

Injection engine VAZ 2107

An engine with an injector has a large number of electronic components. The reason for the failure of the motor can be a malfunction of the sensors and wiring.

You can find a malfunction in a car with an injector yourself:

disconnect the sensor by removing the connector;
check the resistance of the sensor using a tester;
compare the results obtained with the nominal data, which can be taken from the table in the instructions supplied with the car.

If a faulty sensor is found, it must be replaced.

Thus, it is clear from the article that knowing the principle of operation of an engine with a VAZ 2107 carburetor, in particular with a contact and contactless ignition system, and an engine with an injector, it is possible to identify the reason for the vehicle's failure to start moving if the reason is in electronics.

Knowing the reason for the refusal and having experience in repair work related to electrical wiring, the driver will be able to fix his car on the road and return it to working condition.

The voltage regulator is responsible for the voltage value of the on-board network. Its function is to keep the voltage within certain limits, preventing it from getting too low or too high. If the voltage constantly exceeds the voltage somewhere around 14.5 volts or is lowered below 12.7 volts, the claims are most likely to this very regulator.

If the voltage is too low, then also check the tension of the alternator belt. Its weak tension causes the alternator pulley to slip and problems with full charging.

-Poor electrical contact

The first step is, again, to check the contacts on the generator, and especially contact No. 30, from which the wires go to the consumers and to the battery (usually this is a terminal with 3 wires). It is useful to check the conductor itself between the generator and the battery. It is also necessary to check the "mass" of the engine - the black thick wire connecting the battery and the engine. It is possible that the problem is in the voltmeter itself or in its wiring, as well as in the "ground" wire of the instrument panel itself.

This is in most cases the norm, since a certain voltage must be supplied to the battery depending on the temperature conditions. If the temperature is low, a higher voltage is applied to the battery. As it heats up, the voltage decreases. The voltage regulator is responsible for this, if it is temperature compensating (most of them are now just like that).

Everything here can be harmless enough. It will be enough to change the lamp on the instrument panel (after checking the old one). If the new lamp does not burn, then it is possible that the lamp simply does not receive power (poor contact, wire breakage, etc.).Do not forget to check the contacts on the generator itself, since there are often cases when the reason was in oxidized contacts (including contact No. 61, to which the test lamp is connected) It is useful for this check to check the voltage with a multimeter at the battery terminals when the engine is not running and running.

This lamp signals that something is wrong with the operation of the generator and, as a result, with the battery charge. Typically, the lamp behaves this way for the following reasons:

- The alternator belt has broken or is loose.

Everything is quite simple here - the generator simply does not rotate with the engine. A visual inspection and checking the tension of the alternator belt, if intact, is necessary. It should also be clean and not oily, since a “lubricated” belt, for obvious reasons, will not rotate the generator well.

It often happens that he came to the garage in the evening, put the car on, drowned it out, went home happy, returned in the morning, turned the key to the ignition on position and turned it on. nothing! Silence, control devices and lamps do not light up, the car, when the starter is turned on, oil the engine idle and will not start.

A fairly common problem - the turn signals work fine, the relay clicks, but the dashboard is dark and the working turn signals can only be “heard” by the click of the relay. So, there are actually only two main reasons - the first, and the most common - the lamp in the dashboard just burned out, or the contacts moved away or oxidized, you need to remove the tidy and check the light bulb / contacts. And the second reason, less common, but nevertheless entitled to life, is the failure of the relay itself.

In addition, for the repair or tuning of the VAZ, you will need to know the serial numbers of the plugs in the pads. The electrical diagram of the VAZ 21074 gives the following designations:

Headlights, windshield and headlight wipers, power valve control unit, windshield wiper relay.
Mounting block and three-lever switch.
Signal and turn signals.
Rear headlights.
Alarm switch.

rear lamps for reverse gear;
headlight and glass washer pump motors;
heated rear window;
direction indicators, alarm;
fog lights;
tachometer, voltmeter, warning lights on the tidy;
cigarette lighter and clock;
sound signal;
interior lighting, brake lamps;
high beam headlights;
high beam warning lamp;
engine compartment lighting and license plate lighting;
illumination of the glove compartment;
low beam on the right;
low beam on the left.

The electrical diagram of a VAZ 2017 car will help in repair and maintenance. You can download a picture in high resolution following the link.

Author of the material: Dumchenkov Mikhail

Did you like the material? Share with your friends:

Have questions about car repair? Ask them in the consultation section by clicking on the link below.

Ask a question to an auto mechanic

The best prices and conditions for the purchase of new cars

Cars are presented by the leading salon in RUSSIA

SCHEME VAZ-2107

The electrical connections between the devices, pilot lamps and terminal plugs are made by means of a printed circuit board, riveted to the back of the housing. The printed circuit board serves at the same time for fixing control lamps and instrument lighting lamps. Lamps are inserted into plastic holders and holes in the printed circuit board.

The speedometer differs from the VAZ-2105 in the absence of warning lamps and the addition of a daily counter of the distance traveled. To reset the counter, the handle is turned counterclockwise. The tachometer is installed electronic. Its principle of operation is based on measuring the frequency of voltage pulses in the primary circuit of the ignition system. With the engine running, in one revolution of the ignition distributor roller, the breaker contacts open four times. Consequently, in one revolution of the roller in the primary circuit of the ignition system, four pulses of current and voltage are created. The higher the engine speed, the higher the pulse repetition rate and the more the pointer deflects.

The voltmeter, fuel level and coolant temperature indicators work the same as on the VAZ-2105, but have a slightly different design.

For all questions about repair, please contact the FORUM

This page shows a color diagram of the electrical equipment of VAZ 2107, 21074 cars produced in 1988-2001 with a 37.3701 generator (with a built-in voltage regulator).

To enlarge the image of the wiring diagram, click on the picture below.

Electrical diagram VAZ 2107, 21074, 1988-2001, with generator 37.3701

In order to download scheme VAZ 2107 and save it to your computer, move the pointer over the picture above, then press the right mouse button and select “save as image” (about 300 kilobytes in size).

The image resolution is 1600 × 872 pixels, so the electrical circuit can be easily printed on a printer and used when repairing a car.

The order of conditional numbering of plugs in strips:

a - headlight unit, headlight and windshield wipers, windshield wiper relay, carburetor solenoid valve control unit
b - mounting block and three-lever switch
c - alarm relay and direction indicators
d - rear lights (pin numbering in order from the edge of the board)
d - alarm switch

Additional information "asterisks":

* - Installed on parts of manufactured cars.

** - Not installed since 2000.

*** - Not installed since 1998.

**** - Since 2000, instead of one plafond on the roof, two plafonds have been installed on the door pillars.

Contents: Installing the front speakers Expanding the speaker system with the rear speakers.

Contents: We insulate the VAZ-2107 Interior treatment Modernization and improvement of the stove Insulation.

Contents: Prestarting heater Types, features of work Installation of equipment on a car.

Contents: Some nuances Antifreeze heater 220 V Heating device.

Contents: Longfei heaters. Design features Models and their characteristics “Little.

Contents: Types of heaters, features of "Alliance-2-PC" "Alliance" "Alliance -07" "Alliance-08" etc.

Contents: Viscosity Oil type Gear oil Video - What kind of oil is in a car.

Contents: Theory "on the fingers": how everything works Control light C.

Contents: Battery features Selection parameters Types Capacity Starting current Polarity.

Contents: Timing features Stages of work, tools Preparatory work Sequence of adjustment.

One of the design features of the gas distribution mechanisms of VAZ engines of classic models.

Contents: A little theory When you need to bleed the brakes Tools Work.

Contents: Detonation - what is it Detonation and glow ignition.

Contents: Preparing a car for the winter period Starting the engine with a carburetor.

Contents: Vacuum brake booster Master brake cylinder Caliper device Device.

Before we do the work on replacing the wiring on the VAZ 2107 car, we will figure out at what point it needs to be done. Over time, the wiring physically ages, wears out. Oxidation appears in the contacts, rust forms due to moisture, there is a breakdown in some places, due to which the fuse constantly burns out.

In addition, many drivers hang all kinds of additions on the standard worn out wiring, as a result, all this turns into big noodles, which are rewound in places with insulating tape. If an electrician with a low qualification worked with the machine, then it is difficult to figure it out here, even with a diagram at hand. Gradually, the electrical wiring begins to fail and this happens while driving, in the rain, etc. In such situations, a local replacement of a piece of wires is no longer enough. This will solve the problem, but not for long, soon breakdowns will form again and the electrician will start to fail again. In this case, three different ways of solving the problem were considered: complete replacement of the old one and installing in its place the standard wiring from the VAZ 2107, install a completely homemade wiring, which at its core has components from the VAZ 2109, or we install the wiring from the VAZ 2109 in a luxury configuration, which will be finalized on the spot. In the process of work, a tape measure and a bunch of electrical circuits will come in handy. Once you decided to do everything yourself, you will have to delve into and understand.

In the family of "classics" VAZ 2107 is the last model of the conveyor assembly, which was mass-produced from 1982 to 2012. In recent years, its modification - LADA-21074, intended for sale in the automotive markets of other countries, has come off the assembly line. She had internal differences, in particular a different power unit and electrical control circuits.

Wiring diagram VAZ 21074 instrument panel assembly

The basis for the luxurious rear-wheel drive "classics" of the Soviet automobile industry was the platform of the VAZ 2105 car. The car was produced in two versions:

With the VAZ 2107 index - for the domestic market;
With the VAZ 21074 index (outside the country - LADA-21074) - for export.

The export version was slightly more expensive. Nevertheless, a significant part of VAZ 21074 cars were sold in Russia. And most of them to this day regularly serve their owners, who prefer to service the vehicle with their own hands.

However, in the process of repair and preventive maintenance of the car, the owner needs:

Instructions with wiring diagrams related to this model;
Knowledge of the basics of working with electrical systems of cars of the VAZ family (see also the article Wiring - VAZ 2109: what is possible and what is not)

Let's see what is the difference between the predecessor VAZ 2107 and modifications.

But first, let's define a list of these modifications that rolled off the assembly line in the indicated years:

A car with the LADA-21074 index;
A car with the LADA-21074-20 index;
A car with the LADA-21074-30 index.

For reference: In all three modifications, the car was equipped with a 1.6-liter power unit from the VAZ 2106 model with a capacity of 75 hp. This was reported in every promotional video of those years.

Differences in the indices of one model are explained as follows:

LADA 21074 - with a carburetor engine;
LADA 21074-20 - with multipoint injection. Complies with EURO-2 standards;
LADA-21074-30 with multipoint injection. Complies with EURO-3 standards.

The use of an injection system for supplying fuel to the cylinders led to the fact that the engine compartment wiring of the VAZ 21074 was produced for this modification.

She was in addition to the standard one, and served:

Electric fan drive chain;
Intake manifold throttle actuator control circuit;
The work of the electronic engine control system (ECM).

Power unit VAZ 21074 with injection power system

For the VAZ 21074 dashboard, a "donor" unit with a VAZ 2105 was used. Accordingly, the wiring diagram of the VAZ 21074 dashboard was borrowed in full.

Photo of the electrical diagram of the instrument panel VAZ 2105 and VAZ 21074

The fuel injection system cannot be operated without a fuel pump. On the VAZ 21074 model, an electric fuel pump was installed under the rear wing. For its operation, a separate wire was added to the standard wiring. And the fuel pump itself (below in the diagram under No. 9) worked in the electrical network together with:

Wiring diagram for the rear of the car VAZ 21074

Rear window heating elements (No. 10);
Interior lampshades (No. 7 and 8);
Additional braking signal behind the rear window (No. 11);
License plate lights (No. 14 and 15).

Due to the unification of many electronic components of the VAZ family, motorists spend time looking for the right wiring, not suspecting that it may have an index of another model.

The presented list contains indices of some of these products installed on the VAZ 21074:

Instrument Panel Wiring - 21053-3724030;
Instrument panel wiring - 21053-3724035-42;
Fuel Injector Wiring - 21214-3724036;
Starter connecting wire - 2101-3724060;
Ignition system wiring - 21073-3724026;
Rear wiring harness (flat) - 21073-3724210-10.

Coolant temperature gauge

When the pointer arrow is constantly at the beginning of the scale, then with the ignition on of the VAZ 2107, disconnect the wire from the pointer sensor and connect the wire tip to ground.

Wiring diagram of the instrument cluster VAZ 2107 (rear view)

1 - fuel level indicator with reserve indicator lamp

2 - a lamp of illumination of a combination of devices

3 - speedometer

4 - control lamp of the carburetor air damper

5 - indicator lamp of direction indicators

6 - control lamp of the battery discharge

7 - tachometer

8 - econometer

9 - coolant temperature gauge

10 - control lamp of oil pressure

11 - control lamp of the parking brake

12 - a control lamp of a high beam of headlights

13 - control lamp for outdoor lighting

14 - voltmeter

A - a diagram of the conditional numbering of the plugs in the pads of the instrument cluster

If the arrow deviates, then the sensor is faulty and must be replaced, and if it does not deviate, then remove the instrument panel and, with the ignition on, connect to ground the plug “6” of the red block of the instrument cluster, to which the green wire with a white stripe fits. Deviation of the arrow in this case will indicate the serviceability of the device and damage to the wire connecting the sensor to the instrument cluster. If the arrow does not deviate, then replace the instrument cluster of the VAZ 2105.Is constantly in the red zone, then with the ignition on, disconnect the wire from the sensor. With a faulty sensor, the arrow should return to the beginning of the scale. If it remains in the red zone, then either the wire is shorted to ground, or the device is damaged. The serviceability of the device can be checked by disconnecting the green wire with a white stripe from the instrument cluster. With the ignition on, the arrow should be at the beginning of the scale.The test procedure is similar to that described above. It should be borne in mind that a wire going to the fuel reserve indicator lamp is connected to the “W” plug of the indicator sensor, and a wire leading to the indicator itself is connected to the “T” plug.The pointer arrow is constantly at the beginning of the scale and does not deviate after the classic fret wire tip, disconnected from the “T” plug of the sensor, is shorted to ground, then check the device. To do this, remove the instrument panel and, with the ignition on, connect to ground the plug “1” of the white block of the instrument cluster, to which the pink wire with a white stripe fits. In a working device, the arrow should deviate to the end of the scale.When the pointer arrow is constantly at the end of the scale, the instrument's serviceability can be checked by disconnecting the white block of wires from the instrument cluster and connecting the “4” plug of the white block of the VAZ 2104 instrument cluster to the “plus” of the battery. at the beginning of the scale.The test procedure is similar to that described above. When troubleshooting, connect to ground or disconnect from the device the gray wire with white stripes going to the sensor.Figure 8-42. Control devices switching circuit: 1 - oil pressure warning lamp sensor; 2 - gauge for the coolant temperature gauge; 3 - mounting block; 4 - fuel level indicator sensor; 5 - instrument cluster; 6 - fuel level indicator with a fuel reserve indicator lamp; 7 - tachometer; 8 - an indicator of the coolant temperature; 9 - ignition switch; 10 - ignition relay; 11 - carburetor pneumatic valve control unit; 12 - ignition coil; A - to terminal "30" of the generatorFigure 8-43. Wiring diagram of brake system warning lamps: 1 - brake fluid level sensor; 2 - mounting block; 3 - ignition relay; 4 - ignition switch; 5 - control lamp of the parking brake in the instrument cluster; 6 - relay-interrupter of the parking brake control lamp; 7 - parking brake warning lamp switch; 8 - control lamp for brake fluid level; 9 - diode; A - to terminal "30" of the generatorFigure 8-1. Mounting block (cover removed): 1 - relay for turning on the rear window heating (P1); 2 - relay for switching on the cleaners and headlight washer (P2); 3 - relay for turning on sound signals (P3); 4 - relay for turning on the electric motor of the fan of the engine cooling system (P4); 5 - spare fuse; 6 - relay for turning on the high beam headlights (P5); 7 - relay for turning on the dipped headlights (P6); 8 - fuseFigure 8-5. Wiring diagram of the generator system 37.3701: 1 - storage battery;Figure 8-30. External lighting switching circuit: 1 - block-headlights with side light lamps; 2 - engine compartment lamp; 3 - mounting block; 4 - lamp for lighting the glove box; 5 - instrument lighting switch; 6 - rear lights with side light lamps; 7 - license plate lights; 8 - outdoor lighting switch; 9 - a control lamp for outdoor lighting located in the speedometer; 10 - ignition switch; A - to terminal “30” of the generator; B - to the instrument lighting lamps and to the switch illumination lampsFigure 8-31. The scheme of switching on the headlights and fog light in the rear lights: 1 - block headlights; 2 - mounting block; 3 - switch for headlights in a three-lever switch; 4 - outdoor lighting switch; 5 - rear fog light switch; 6 - rear lights;Figure 8-34. Scheme of switching on direction indicators and alarm: 1 - block headlights with front direction indicators; 2 - side direction indicators; 3 - mounting block; 4 - ignition relay; 5 - ignition switch; 6 - relay-interrupter of direction indicators and alarm; 7 - indicator lamp for direction indicators located in the speedometer; 8 - rear lights with direction indicator lamps; 9 - alarm switch; 10 - switch of direction indicators in a three-lever switch; A - to terminal “30” of the generator; B - numbering of plugs in the alarm switch; B - the order of the conditional numbering of the plugs in the relay-interrupter of direction indicators and alarm

Video (click to play).

Figure 8-44.Wiring diagram of the instrument cluster (rear view): 1 - fuel level indicator with reserve indicator lamp; 2 - a lamp of illumination of a combination of devices; 3 - speedometer; 4 - control lamp of the carburetor air damper; 5 - indicator lamp for direction indicators; 6 - control lamp for battery discharge; 7 - tachometer; 8 - econometer; 9 - an indicator of the coolant temperature; 10 - control lamp for oil pressure; 11 - control lamp of the parking brake; 12 - control lamp for high beam headlights; 13 - control lamp for outdoor lighting; 14 - voltmeter; A - a diagram of the conditional numbering of the plugs in the pads of the instrument cluster