Indicators on the Instrument Panel of the VAZ 2107 Injector Reporting a malfunction

If everything is clear with the main elements and arrow indicators, the indicators need to be deciphered.

The bulk of the light bulbs are located strictly in the center of the panel. There are 7 control indicators in the column; their explanation is presented in detail in the pictures below.

• The first thing to install from the top is turning on the turn signals. The indicator is activated when pressed or alarmed.

• Next is the check engine fault indicator. The light bulb is used only on injection engines.

• The third one from the top is a faulty battery. If the indicator lights up, this indicates a breakdown in the generator line (the battery is not charging).

• In the middle of the column there is a light bulb for turning on the dimensions. This indicator indicates normal operation of the device.

• An indicator for activating the main beam of the head optics is installed even lower. The blue indicator indicates that the exterior lights are operational and working properly.

• The penultimate light is an indicator of the critical oil pressure in the engine crankcase. If it lights up constantly, you need to add fluid to the required level or check the functioning of the pump.

• The last place the manufacturer placed the parking brake activation indicator. Usually the light comes on when the lever is raised.

Also on the dashboard you can see a yellow diode indicating a critically low fuel level in the tank.

The light comes on only when the container is empty and there is no more than 5 liters of gasoline remaining.
The instrument cluster is not equipped with an emergency warning symbol; it is located on the power button.

Identification of buttons

Several switch keys can be installed on the car’s dashboard, which are responsible for activating certain elements and parts of the car. The following is a description of the main buttons on the car dashboard.

VAZ 2107: exclamation mark on the panel

A similar indicator appeared on the dashboard only in modifications of recent years. The symbol indicates the need to check the brake system.

The battery light on the dash 2107 is on

The indicator looks like a red battery-shaped icon. If the symbol is constantly on, it is recommended to carry out a thorough diagnosis of the generator and supply wiring. If the problem is not found, check the battery.

ECON on panel 2107: what does it mean

A thoughtful but simply executed car detail. The dial indicator shows the fuel mixture consumption in real time. The option helps the driver save fuel.

Scheme of VAZ 2107 carburetor produced 1988 - 2001 with generator 37.3701

The diagram of a VAZ 2107 carburetor is mounted on the principle of one wire. The negative current conductor is the body of the seven. Almost every wire laid inside the body of a VAZ 2107 serves as a positive conductor of electricity.

Front part of the diagram

Useful! VAZ 2107 fuse box

Back of the diagram

The sequence of conventional numbering of plugs in the blocks: a - headlights, headlight and windshield wipers, windshield wiper switches, carburetor electric valve control unit; b - fuse box and three-lever switch; c — emergency lights and turn signals; d — rear lights (numbering of pins in order from the edge of the board); d — hazard warning switch

Complete diagram of VAZ 2107 carburetor

In order to quickly find the necessary electrical circuits of specific devices and units, their local diagrams are located in additional subsections of this article.

Wiring diagram for connecting the adapter connector for checking the carburetor control unit

Connection diagram for EPHH carburetor VAZ 2107

Helpful! Tightening torques for VAZ 2107

Removal and Replacement Guide

Changing the fuse box

Replacement of fuses and relays is necessary only if repair is impossible. To dismantle, follow these steps:

1. The ground terminal is disconnected from the battery.
2. The air filter housing is removed.
3. All harnesses that fit the power supply unit are undocked.
4. The shelf in the cabin under the dashboard and the glove compartment body are removed, and the harness with the connector is disconnected from the unit.
5. Using a 10mm head, the block mount is unscrewed and the housing is removed along with the seal.
6. The new device is installed in the reverse order.

Relays play an important role in the health of the system because they perform the operations to turn on or off the necessary functions in the car.

REFERENCE. The mounting blocks use two types of relays; they differ in design and operating principle:

• Electromagnetic component on and off relays are ordinary relays. Their contacts close and open when voltage is applied and removed.
• Specialized relays have a built-in compact electronic unit that turns certain components on and off.

To check the functionality of the relay, you must perform the following steps:

1. The ground wire in the car is disconnected from the battery.
2. The relay can be easily pulled out by hand.
3. A visual inspection of the contacts is carried out, they are cleaned of oxidation, and the reliability of the pin fastenings is checked.
4. Functionality testing is performed by applying 12V power to the winding using two pieces of wire.
5. When power is supplied, the coil should operate, and the contacts should also close, which can be checked using a multimeter in the vertebrae or resistance measurement mode.
6. The relay should be replaced with a new one if it is not working.

Pinout of fuse box 2107

In the photo, numbers from 1 to 6 indicate relays or connectors for their installation:

1. Rear window defroster control.
2. Control of windshield wipers and headlight washer motor (if equipped).
3. Control of sound signals (a plug is installed instead of a relay).
4. Connector for installing a fan motor control relay designed to cool the radiator (not used in new VAZ 2107 models).
5. Control of high beam headlight bulbs.
6. Control of low beam electric lamps.

The photo also shows components that perform various protection functions (from F1 to F17):

• F1 protects the circuits of: lamps in reversing lights; stove fan; heater (on indicator lamp and control relay), washer pump and rear window wiper.
• F2 protects windshield wipers.
• F3 is in reserve.
• F4 is in reserve.
• F5 protects the rear window heater.
• F6 - cigarette lighter circuit, connector for turning on a portable lamp, clock on the dashboard.
• F7 - cooling fan and signal fuse.
• F8 - control circuits for turn signals in emergency mode.
• F9 - protection of fog light circuits and generator voltage relays for a number of VAZ models.
• F10 protects the dashboard warning lights.
• F11 - circuits for turning on the stop lamps.
• F12 - right high beam headlight circuits.
• F13 - protection of the left high beam headlight and warning lamp.
• F14 - protection of the side light circuits of the headlights (front left and rear right), rear license plate light, engine compartment light.
• F15 - protection of the side light circuits of the headlights (front right and rear left), lighting of the cigarette lighter socket, glove compartment.
• F16 - right low beam headlight lamp.
• F17 - left low beam headlight lamp.

VAZ 2107 connection diagram

Electrical diagram for connecting the VAZ 2107 starter, model 35.3708

Wiring diagram for outdoor lighting

Sound signal connection diagram

Wiring diagram for connecting hazard warning lights and direction indicators

Useful! Generator VAZ 2107

Advantages of installing a three-level regulator

The three-level voltage regulator on the VAZ 2107 is capable of maintaining a constant voltage supplied by the generator to the vehicle network. With this product it is possible to save and increase the battery life. In addition to regulating voltage, three-position regulators are capable of maintaining current within a certain range.

Some of the main advantages of the device in question include:

• The main board of the device is located not in the generator itself, but away from it, which contributes to less heating of the product, as well as extending its service life.
• Possibility to regulate the voltage level manually thanks to a special switch. The device operates from a switch.
• The charge level is significantly higher, in contrast to standard products.

Problems with starting the engine, especially on frosty days when it is very difficult for the starter to start the engine, can be avoided by replacing the standard device with a three-position one. Large loads on the electrical circuit in a car, such as headlights, heater, heated glass, can contribute to battery discharge, even if the engine is running and the standard product is in good working order.

Types of regulator relays are simple, three-level and with temperature compensation. In the brush section of a standard seven generator, in most cases, a temperature-compensated option is installed. But, as practice shows, in terms of thermal regulation, these regulators are mostly ineffective. Recently, among drivers of the VAZ 2107 and other Lada models, the three-level type is gaining more and more popularity. Car owners who have installed such a regulator overwhelmingly recognize it as more effective than the standard one.

Characteristics of the Energomash device for VAZ 2107

The Energomash voltage regulator for the VAZ 2107 is equipped with three “25C” type diodes and a mode switch. With their help, a three-stage voltage change is carried out. A three-level balancer is also called a current injector, since the device is capable of maintaining it at a level of up to 6A. The main functionality of the three-level voltage regulator for the VAZ 2107 model "Energomash" is based on changing the current from the generator, thereby increasing the voltage of the on-board circuit to 13.6-14.7 V.

The first operating mode provides for maintaining the voltage at the generator output at 13.6 Volts. The switch should be installed in a position where the ambient temperature is +20 degrees and above. The switch in the neutral position should be set at temperature values ​​from 0 to +20 degrees. And in the third position, the generator will produce a voltage of 14.7 V when the air temperature is from 0 to -20 degrees.

It is important to know! The Energomash model will cost about 350 rubles

Changing the brush assembly

Replacing a standard product with a VAZ-2107

Connecting a three-position regulator, or rather, changing a standard product, does not present any difficulties. After purchasing the product, you must complete the following steps:

1. Initially, you need to remove the protective cover of the generator. Don't forget to disconnect the negative terminal from the battery.
2. The standard part is removed by unscrewing two bolts using a screwdriver or a “6” key, which depends on which VAZ generator is installed on the car. It is also necessary to remove the terminal.
3. After this, we compare the standard device with the three-level one. The brushes and fasteners must be identical in design, otherwise the product will need to be replaced.
4. A new product is installed in place of the standard “tablet”, after which it is fixed with fasteners (bolts).
5. The body of the product should be secured to the ground of the car in any convenient place (pictured below). This is not difficult to do, since the wire is long enough.

After installing such a product, the owner of a VAZ-2107 car will be able to forever forget about constant problems with a dead battery, since the new regulator will recharge it more stably under certain temperature conditions.

VAZ 2107 fuse diagram

Diagram of internal connections of the VAZ 2107 fuse box

How to replace dashboard lamps?

Well, firstly, before carrying out any electrical work in the car, it is necessary to turn off the power to the vehicle’s on-board network. To do this, open the hood and remove the negative terminal of the battery.

How to change light bulbs on a VAZ 2107

Inside the car, use a flat-head screwdriver to pry and pull out the plastic handles on the heater air damper control drive. After this, unscrew the nut located on the small handle designed to reset the daily mileage. Then remove the washer from it and push the handle deep into the instrument panel.

During the replacement process, it is possible to install lamps with a different color of luminous flux, however, in no case should you use lamps with too much or too little power in order to avoid other malfunctions.

VAZ 2110 (new model) - changing the backlight with your own hands

What kind of lighting do you prefer?

Built-in Chandelier

Electrical ignition circuit for VAZ 2107

Ignition circuit for VAZ 2107 with a classic contact device

This electrical diagram shows the classic contact ignition system of the VAZ 2107. All devices included in this ignition circuit of the VAZ 2107 are shown with their own electrical block diagram. It allows you to better understand their operation and correctly connect these devices to the ignition electrical circuit. The VAZ 2107 ignition circuit starts from the fuse mounting block, passes through the ignition relay, ignition switch, ignition coil, ignition distributor and ends at the spark plugs.

Wiring diagram of a non-contact ignition system

LED panel lighting

The most popular tuning is the LED lighting of the VAZ 2107 instruments, which makes the torpedo attractive, especially at night.

To perform tuning, you will need to prepare:

• 10 light bulbs 3 V each;
• special train;
• a piece of wire from a molex connector;
• resistor with a resistance of 680 ohms.

Tidying with LED backlight
The procedure consists of three stages:

1. First you need to prepare the LEDs by cutting off their heads. Then you need to cut the molex wire into 3 cm pieces and bend them in the shape of the letter “L”. The prepared wires need to be soldered in the places where the LEDs will be placed.
2. The next step is trimming the LEDs. You need to form wires from the cut cable and use them to connect 4 LEDs into one circuit.
3. The brightness is adjusted using the adjustment knob. You need to adjust the brightness in each of the two circuits containing 4 LEDs. You need to drive very carefully with this kind of lighting.

VAZ 2107 wiring diagram

Electrical wiring diagram for the VAZ 2107 stove

Brake warning lamp wiring diagram

Wiring diagram (location of wiring harnesses) VAZ 2107 carburetor in the engine compartment

This wiring diagram is mounted on models VAZ-2107, VAZ-2107-01, VAZ-21074-01, VAZ-21074-02

Location of wiring harnesses (wiring diagram) VAZ 2107 injector in the engine compartment

This wiring diagram is installed on models VAZ-2107-20, VAZ-2107-21, VAZ-21074-21

Wiring layout for the VAZ 2107 body

This wiring diagram is mounted on models VAZ-2107, VAZ-2107-01, VAZ-2107-20, VAZ-2107-21, VAZ-21074-01, VAZ-21074-02, VAZ-21074-21

How are the icons on the installed instrument panel deciphered?

In addition to the instruments, the panel also has various icons that light up when there is a malfunction in the form of electronic indicators. They have the following meanings for the driver:

1. ABS sign. This indicator lights up only when the engine starts and immediately goes out. It can also light up if there are problems with the operation of the anti-lock elements in the brake system.
2. Front airbag indicator. Will light up when there is a malfunction with the airbags attached to the front panel of the car.
3. An indicator that reminds you to put on your seat belt. It will light up when you start the engine and will remain on until you fasten your seat belt.
4. Airbag warning light. Lights up when the airbag of the front pair of passengers is turned off.
5. Heated rear window indicator. It will light up before turning on the heating on the rear window.
6. Low beam icon.
7. High beam indicator.
8. Sign for turning on the rear fog lights.
9. Front fog lamp sign.
10. An indicator that turns on when there is a malfunction in the electric amplifier.
11. Signal lamp that operates when the doors are not closed.
12. Lamp for adjusting the fuel level in the tank. It lights up only if there is fuel for 15-20 minutes of driving.
13. Indicator for left and right turn signals of the vehicle.
14. An indicator that turns on when the engine cooling system overheats.
15. Indicator lamps that turn on when the batteries are low charged.
16. A light called “CHECK ENGINE.” Lights up when a malfunction occurs with the engine control system.
17. Signal indicators that turn on when the parking brake is used or when a breakdown occurs in the brake system.
18. Indicator of low pressure and level of engine oil in the lubrication system.
19. The preheating system malfunction light (specifically responsible for the glow plugs).
20. A warning light that appears when the electronic engine starting system of a car is blocked.

Advice: if one of the indicators associated with the wheels lights up, then first bleed the brakes on the VAZ-2110. and then check the system again. If the indicator on the on-board panel disappears, it means that the problem was solved by repairing the brake system.

Electrical cooling circuit for VAZ 2107

VAZ 2107 generator circuit

Electrical circuit of the generator model 37.3701

Electrical circuit of the generator brand G-222

Description of the panel, disadvantages, advantages

GAZ-3110 has a standard instrument panel, consisting of three main round dials and two secondary ones located on the sides. Here's the information a driver can glean from their performance:

• current speed and total mileage;
• engine speed;
• oil level and quantity;
• battery charge;
• amount of gasoline.

The instrument panel is designed in a gray tone, does not have any bright details, and is difficult to use at night. Many users often look for a replacement for it or introduce additional elements into it to improve functionality.

Dashboard lighting for car Gas 3110

In general, the new version of the panel has positive reviews, since it is a little more convenient to use than the old one. Before installing this model, you should carefully study the instructions for its use.

VAZ 2107 headlight diagram

Wiring diagram of headlights and fog lights

Headlight adjustment diagram

Installation instructions

For installation, in addition to the GAZ Volga dashboard itself, you will also need car wires and heat shrink. And several terminals for pins XP 1, XP 2, XP 3, XP 4. You can find everything you need at an auto parts store. The part itself must be accompanied by instructions for its assembly.

To replace the old shield with a new one, you should follow these steps.

1. First, remove the 4 screws that secure the panel. Also, 6 screws of the column casing, remove it.
2. Now unscrew the 4 screws that secure the shield itself.
3. After disconnecting the 5 XP connectors, remove the part.
4. Now you need to connect the wiring using the instructions for your specific panel model and XP terminals.
5. Turn off the ABS and EBD indicators if your car does not have such devices.
6. Install in the reverse order of dismantling.

Photo gallery “Panel and shield”

Electrical diagram of the VAZ 2107 panel

Instrument cluster connection block diagram (rear view)

What does the panel consist of?

The panel consists of a large number of elements that are responsible for the operation of certain components of the VAZ 2107 car. The instrument panel is located in the car interior and is directly embedded in the dashboard on the driver’s side. The main elements are located under a special plastic transparent glass, which protects them from mechanical damage. The elements of the instrument panel include the following elements:

1. Accumulator charging;
2. speedometer;
3. odometer;
4. tachometer;
5. motor temperature sensor;
6. ECON – instantaneous fuel consumption indicator;
7. additional signaling elements;
8. resettable odometer;
9. and 10 – fuel level in the gas tank and warning light.

Let's briefly look at the purposes of each of these elements.

Instrument distribution diagram on the control panel of a VAZ 2107 car

1. Speedometer. The device located on the right side of the panel is called a speedometer. Serves as an informant for the driver about the speed of the vehicle. The scale has values ​​from 0 to 180, which indicates the speed of the vehicle. There are two dials on the device that keep track of the distance traveled by the “seven”. One of them has the ability to adjust, but the bottom one does not.
2. Tachometer. The device located on the left side serves to inform the owner about the crankshaft rotation speed in relation to a unit of time. Most drivers do not really understand the purpose of this element and rarely pay attention to it. But this element is very important, since it is a direct indicator of the quality of engine operation. The closer the arrow gets to the red mark, the more the motor is overloaded. And when it crosses the red line, the car’s movement should be stopped immediately, since the engine is operating in critical mode.
3. ECON flow indicator. The indicator, located in the upper left corner of the instrument panel, performs the function of indicating the consumption of the fuel mixture in instantaneous time while the engine is running. When driving at speeds above 90 km/h, fuel consumption increases and the arrow moves to a yellow position. A very useful feature for the driver to be able to save fuel.
4. Temperature indicator. Designed to indicate the motor temperature value. Above 100 degrees Celsius, the needle moves to the red mark, which indicates overheating.
5. Fuel indicator. Using this indicator, drivers determine the amount of fuel in the tank, which is transmitted through an electronic sensor and level.
6. Battery charge. Indicates how good the battery is; position on the red mark indicates the need to recharge.

Windshield wiper and washer diagram for VAZ 2107

Electrical circuit for switching on the windshield wiper and washer

Electrical circuit diagram for turning on the headlight cleaners and washer

Diagram of VAZ 2107 injector (VAZ 21073-40)

The VAZ 2107 differs from the VAZ-21073-40 in the configuration of a 1.7 liter engine with central gasoline injection. On these engines, instead of the functioning of the carburetor, a central injection unit is mounted on the intake pipe; it contains a nozzle that supplies fuel according to ECU commands

The electrical circuit of the electrical equipment of the VAZ-21073-40 differs from the VAZ 2107 in the addition of the central injection system harness, the wires of which connect the ECU to the sensors and actuators of the injection system. Three wires, from the injection system harness, through a separate block, are connected to the low-voltage input of the tachometer on the instrument panel, with a separate “SNESK ENGINE” display and to pin 15 of the ignition switch.

The electric motor 26 of the engine cooling system fan is connected by the injection system control controller 15. Therefore, the radiator does not have a sensor for connecting the electric fan motor.

Electrical diagram of VAZ-21073-40 central injector

Diagram of the engine control system VAZ 2107 injector

Electrical connection diagram for the VAZ 2107 injection engine control system

Generator device

Identification of light bulbs on the dashboard

The design of a car generator implies the presence of its own rectifier and control circuit. The generating part of the generator, using a stationary winding (stator), generates three-phase alternating current, which is then rectified by a series of six large diodes and the direct current charges the battery. Alternating current is induced by the rotating magnetic field of the winding (around the field winding or rotor). Next, the current is supplied to the electronic circuit through the brushes and slip rings.

Generator structure: 1.Nut. 2. Washer. 3.Pulley 4.Front cover. 5. Distance ring. 6.Rotor. 7.Stator. 8.Back cover. 9.Casing. 10. Gasket. 11.Protective sleeve. 12. Rectifier unit with capacitor. 13.Latch holder with voltage regulator.

The generator is located at the front of the car engine and is started using the crankshaft. The connection diagram and operating principle of a car generator are the same for any car. There are, of course, some differences, but they are usually associated with the quality of the manufactured product, the power and the layout of the components in the motor. All modern cars are equipped with alternating current generator sets, which include not only the generator itself, but also a voltage regulator. The regulator equally distributes the current in the excitation winding, and it is due to this that the power of the generator set itself fluctuates at a time when the voltage at the power output terminals remains unchanged.

The principle of operation of a car generator

Connection diagram for the VAZ 2110-2115 generator

The alternator connection diagram includes the following components:

1. Battery.
2. Generator.
3. Fuse block.
4. Ignition.
5. Dashboard.
6. Rectifier block and additional diodes.

The principle of operation is quite simple: when the ignition is turned on plus through the lock, the ignition goes through the fuse box, light bulb, diode bridge and goes through a resistor to minus. When the light on the dashboard lights up, then the plus goes to the generator (to the excitation winding), then during the process of starting the engine, the pulley begins to rotate, the armature also rotates, due to electromagnetic induction, electromotive force is generated and alternating current appears.

Next, the diode passes plus into the rectifier block through a sine wave into the left arm, and minus into the right arm. Additional diodes on the light bulb cut off the negatives and only positives are obtained, then it goes to the dashboard assembly, and the diode that is there allows only the negative to pass through, as a result the light goes out and the positive then goes through the resistor and goes to the negative.

The principle of operation of a car DC generator can be explained as follows: a small direct current begins to flow through the excitation winding, which is regulated by the control unit and is maintained by it at a level of slightly more than 14 V. Most generators in a car are capable of generating at least 45 amperes. The generator operates at 3000 rpm and above - if you look at the ratio of the size of the fan belts for the pulleys, it will be two or three to one in relation to the engine frequency.

To avoid this, the plates and other parts of the generator rectifier are partially or completely covered with an insulating layer. The heat sinks are combined into a monolithic design of the rectifier unit mainly by mounting plates made of insulating material, reinforced with connecting bars.

Next, let's look at the connection diagram for a car generator using the example of a VAZ-2107 car.

Models of Lada VAZ 2107

• VAZ-2107 is a small passenger car with a closed monocoque four-door sedan-type body. Carburetor engine with a displacement of 1.45 liters of the VAZ 2103-08 brand with toxicity standards R-83. The maximum speed of the car is 150 km/h. It had the “Standard” package and was produced for the domestic market.
• VAZ 2107-01 - was equipped with two types of carburetor engine: 2103-08 carburetor, 1.45 liters; 2103-07 carburetor, 1.45 l. On the 2103-07 engine, a valve cover made of antiphon was installed. It has a maximum speed of 150 km/h. It has the “Norma” package and was produced for the domestic and foreign markets.
• VAZ 2107-02 - differs from the head model VAZ-2107 by an engine with a displacement of 1.45 liters and a system with distributed gasoline injection. The controller of the following models 2104-1411020-00 (01, 02) was installed. Equipped with a VAZ 2104 engine. It has a maximum speed of 145 km/h. It has the same five-speed gearbox. Has the “Standard” package. Produced for the domestic and foreign markets.
• BA3-21073 - differs from the VAZ-2107 car in its engine with a displacement of 1.3 liters and a central fuel injection system.
• VAZ-21074 differs from the VAZ-2107 by an engine with a displacement of 1.6 liters. The passenger car was equipped with an engine of two models: 2106-13 - carburetor; 21067-10 - with distributed fuel injection. The injection engine was developed to meet Euro-2 toxicity standards.

Removing the standard instrument cluster

Removing the factory panel from a VAZ 2107 is quite simple; it is installed in a niche on special brackets and secured to them with screws. The procedure for dismantling the equipment is as follows:

1. We disconnect the battery by disconnecting the negative wire from the corresponding terminal of the battery.
2. Using a flat-head screwdriver, remove the handles from the control levers of the interior ventilation and heating system.
3. We unscrew the locking nut of the daily counter reset handle with a wrench and remove it together with the washer.
4. We take out the plug for the screw securing the decorative panel and unscrew it.
5. With a slight turn, we take the assembly out of the niche and gain access to the instrument cluster.
6. By hand, unscrew the union nut securing the speedometer cable to the device and undock it.
7. We remove the tube from the econometer fitting and disconnect three electrical connectors.

After this, the decorative panel with the instrument cluster is completely removed from the niche and you can work with it on the table. As can be seen from the description presented, dismantling this device on a VAZ 2107 car is not particularly difficult and can be done by a car enthusiast independently.