Wiring diagram - VAZ 2112 wiring. Replacing the wiring harness in the rear of the car. Installation of fog lights

Lada VAZ-2110 (2111, 2112). Electrical circuits - part 1

Electrical diagram of the VAZ-2110 car: 1 - block headlight; 2 — front brake pad wear sensors; 3 — fan motor activation sensor; 4 — electric motor of the engine cooling system fan; 5 — sound signal; 6 - generator; 7 — oil level sensor; 8 — carburetor solenoid valve control unit; 9 — heater controller; 10 — recirculation valve switch; 11 — backlight lamp for heater control levers; 12 - switch; 13 — carburetor limit switch; 14 — oil pressure warning lamp sensor; 15 — spark plugs; 16 — carburetor solenoid valve; 17 — coolant temperature indicator sensor; 18 — ignition distributor sensor; 19 — ignition coil; 20 — starter; 21 — heater fan electric motor; 22 — additional resistor of the heater electric motor; 23 — speed sensor; 24 — reverse light switch; 25 — micromotor gearbox for heater damper drive; 26 — recirculation valve; 27 — brake fluid level sensor; 28 — blocks for connecting the rear window washer motor; 29 — battery; 30 — electric motor for windshield washer; 31 — washer fluid level sensor; 32 — coolant level sensor; 33 — windshield wiper gearmotor; 34 — mounting block; 35 — blocks for connecting the warning light harness; 36 — external lighting switch; 37 — instrument cluster; 38 — rear fog light switch; 39 — fog light indicator lamp; 40 — control lamp for heated rear window; 41 — clock; 42 — rear window heating switch;

43 — steering column switch; 44 — block for switching wires when installing headlights of a different type; 45 — instrument lighting regulator; 46 — ignition switch; 47 — blocks for connecting the wiring harness for headlight cleaners; 48 — socket for a portable lamp; 49-front interior lamp; 50 — brake light switch; 51 — interior lamp; 52 — on-board control system unit; 53 — fuel level indicator sensor; 54 — alarm switch; 55 — driver’s seat belt sensor; 56 — cigarette lighter; 57 — ashtray illumination lamp; 58 — switch for the glove compartment lighting lamp; 59 — block for connecting the on-board computer; 60 — glove box lighting lamp; 61 — side direction indicators; 62 — switches in the front door pillars; 63 — switches in the rear door pillars; 64 — parking brake warning lamp switch; 65 — trunk lighting; 66 — temperature sensor for the heating system; 67 — external rear lights; 68 — internal rear lights; 69 — license plate lights; 70 — rear window heating element; 71 — block for connecting an additional brake light. In the instrument panel wiring harness, the second ends of the wires of white, black, orange, white with a red stripe and yellow with a blue stripe are connected to each other at the same points. The electrical circuits of the VAZ-2111 and VAZ-2112 cars differ (with the exception of the engine control system) only in the addition of a tailgate cleaner and washer.

Electrical diagram of a VAZ-21102 car with a distributed fuel injection system ("January-4" controller): 1 - headlight; 2 — front brake pad wear sensors; 3 — sound signal; 4 — cooling system fan; 5- reverse light switch; 6 - battery; 7 - generator; 8 — oil pressure warning lamp sensor; 9 — oil level sensor; 10 — spark plugs; 11 — nozzles; 12 — idle speed regulator; 13 — blocks of the electronic control unit; 14 — throttle position sensor; 15 — crankshaft position sensor; 16 — ignition module; 17 — coolant temperature indicator sensor (for instrument cluster); 18 — starter; 19 — diagnostic block; 20 — coolant temperature sensor (for the engine management system); 21 — speed sensor; 22 — fuel pump activation relay; 23, 35, 39 — fuses; 24 - electric fuel pump; 25 — micromotor gearbox for heater damper drive; 26 — recirculation valve; 27 — heater fan; 28 — windshield washer pump; 29 — washer fluid level sensor; 30 — brake fluid level sensor; 31 — coolant level sensor; 32 — windshield wiper gearmotor; 33 — additional heater fan resistor; 34 — injection system power supply relay; 36 — adsorber purge valve; 37 — mass air flow sensor; 38 — relay for turning on the cooling system fan; 40 — external lighting switch; 41 — knock sensor; 42 - con- sensor

oxygen concentration (heated lambda probe); 42* — CO potentiometer (installed on cars running on leaded gasoline; in this case, an oxygen concentration sensor is not installed); 43 — fog light indicator lamp; 44 — control lamp for heated rear window; 45 — fog light switch; 46 — rear window heating switch; 47 — instrument cluster; 48 — mounting block; 49 — fuel level sensor; 50 — ignition switch; 51 — instrument backlight brightness control; 52 — steering column switch; 53 — backlight lamp for heater control levers; 54 — alarm switch; 55 — electronic heater control unit; 56 — recirculation valve switch; 57 — display unit of the on-board control system; 58 — side direction indicators; 59 — temperature sensor for the heating system; 60 — interior lamp; 61 — front interior lamp; 62 — socket for a portable lamp; 63 — electronic watch; 64 — switches in the front door pillars; 65 — switches in the rear door pillars; 66- glove box lighting lamp; 67 — glove box lighting switch; 68 — cigarette lighter; 69 — ashtray lighting lamp; 70 — brake light switch; 71 — rear window heating element; 72 — external rear lights; 73 — internal rear lights; 74 — license plate lamps; 75 — trunk lighting lamp.

Equipment for VAZ 2112 passenger cars

VAZ 2112 diagram

Front part of the diagram

Rear end

Complete diagram of VAZ 2112

Healthy ! Tightening torques for VAZ 2112

Classification of devices and principles of their operation

Devices that allow you to securely lock the engine compartment have appeared a long time ago, and today there are many modifications of them. All devices, according to their operating principle, can be divided into two groups:

• mechanical interlocks;
• electromechanical blockers.

Regardless of the operating principle, the hood switch can use a factory-installed lock to lock the engine compartment, or it can be equipped with an additional locking system.

Mechanical devices

Mechanical locks are devices that do not use electric drive systems to lock and unlock the hood, that is, everything happens using mechanical elements.

The operating principle of such devices is quite simple. In the engine compartment, it is necessary to secure a metal hose along a certain trajectory, one end of which will be located in the car interior, and the other under the hood. A control cable will be threaded through the metal hose, which acts on the hood locking system.

VAZ 2112 injector diagram

1. injectors
2. spark plugs
3. ignition module
4. diagnostic block
5. ECU (since 2000 installed M1.5.4N or January 5.1) VAZ 2112
6. cooling fan motor
7. terminal block for connecting to the instrument panel wiring harness
8. main relay
9. main circuit fuse
10. electric fan relay
11. fan relay circuit fuse
12. petrol pump relay
13. petrol pump circuit fuse
14. DMRV VAZ 2112
15. dpdz
16. dtozh
17. CO potentiometer (not installed on machines with a modified control system; CO adjustment is made using the DST-2 device through the diagnostic block)
18. empty control
19. DD
20. DPKV
21. car speed sensor
22. ECU anti-theft system VAZ 2112
23. APS status indicator
24. gasoline pump with gasoline level meter
25. oil pressure sensor
26. antifreeze heat indicator meter
27. oil level meter
28. DD (mounted on machines with a modified control system)

A - terminal block connected to the ABS cabin group);
B - contacts connected to the air conditioner wiring harness; C — terminal block to the fuse and relay block; D - to the plus of the electricity storage device; E - wires connected to the ignition switch (light bulb); F - terminal block connected to blue wires with a white stripe, disconnected from the ignition switch; G1, G2 — minus points; Together with the letter designation of the color of the wires on the injector diagram the VAZ 2112 passenger car , the designation of the number of the circuit element to which this wire is connected is used. For example “-7-“. In other cases, in addition to the designation of the element number, it is given through an oblique fraction and the terminal number, for example “-5/30”. The diagram does not show the connection points for the pink-black, red and green wires with a red stripe.

LED indicators

Each of the indicators has its own meaning and a symbolic, intuitive picture.

When the indicator lights up, there is a malfunction in the following vehicle functions:

1. Oil level.
2. Washer fluid.
3. Coolant.
4. Doors.
5. Headlights.
6. Seat belts.

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Diagram VAZ 2112 injector 16 valves for Euro-2

1 — spark plugs; 2 — injectors; 3 — ignition module; 4 - ECU VAZ 2112; 5; main relay; 6 - fuse connected to the main relay; 7 — electric fan relay; 8 - fuse connected to the electric fan of the cooling structure; 9 — electric fuel pump relay; 10 - fuses, connected to the electric fuel pump relay; 11 — mass flow and air temperature sensor; 12 — TPS; 13 — DTOZH; 14 — electromagnetic throttle for purge of the adsorber; 15 — lambda probe; 16 - DD; 17 — DPKV; 18 — empty speed regulator; 19 — VAZ 2112 immobilizer computer; 20 — immobilizer status indicator; 21 — phase sensor; 22 — car speed meter; 23 — gasoline pump module with fuel level meter; 24 — oil pressure control sensor; 25 - coolant heat indicator meter; A - terminal connected to the ABS cabin group harness; B - diagnostic connector; B - terminal block connected to the air conditioner wiring harness; G - to the plus terminal of the battery; D - to the terminal block of the side door wiring harness; E - terminal block connected to the instrument panel wiring harness; G1, G2 - ground points; I - the order of conditional numbering of the terminals in the wiring block of the immobilizer computer; II - the order of conditional numbering of terminals in the diagnostic connector.

Scheme VAZ 2112 injector 16 valves for Euro-2 with controller M7.9.7

Basic and additional functions

On domestic VAZ 2110 cars, the on-board computer allows you to determine the air temperature outside, the speed of the car, the volume of gasoline in the tank and its average consumption. In addition, thanks to the BC, the driver will be able to find out how far the fuel in the tank will last. Depending on the model of the VAZ on-board computer, the device can show the operating parameters of the power unit and the voltage level in the car’s electrical circuit.

The main function performed by the State on-board computer is to identify combinations of errors in the components and systems of the vehicle, while connecting additional equipment is not necessary. In accordance with the instructions for the device, when the Check indicator appears on the BC screen or dashboard, you need to perform diagnostics of all systems. The received error codes are decrypted in accordance with the technical documentation; information on decoding the codes is also provided in this article

Another important function of the BC is the drying of spark plugs, which greatly simplifies engine starting, especially at low temperatures.

Message from BC about the need to replace the engine fluid

Depending on the VAZ 2110 computer model, the device can be additionally equipped with a tachometer, clock, voltmeter and even a calendar. IN practice, most BCs have volatile memory, as a result of which, when the battery is disconnected from the network, all error information will be saved. You can find many different BC models on sale, the most common of which are Gamma, Omega, Multitronics, and State 110. The latter option is optimally suited for the VAZ 2110, since models for cars are available with both an old and an improved dashboard.

The main functions of this bookmaker:

• the device provides the driver with data on fuel consumption, antifreeze temperature in the system, as well as mileage traveled;
• determining the distance for which the gasoline in the tank will last;
• providing information on car maintenance;
• demonstration of combinations of errors in engine operation;
• the ability to update the platform via the Network;
• another function is the presence of a plasmar necessary for warming up the spark plugs;
• there is a Fast and Furious option - its purpose is to reset the memory to standard settings;
• The Tropic function allows you to activate the fan when a certain engine temperature is reached.

It should be noted that these are not all the functions that a device for the domestic “ten” may have. On sale today you can find many different models of computers, the functionality of which can be expanded in accordance with the installed software. So, in general, the possibilities of a bookmaker depend on the model and, accordingly, on the financial capabilities of the buyer.

BC Gamma for “ten”

If you decide to purchase an on-board computer for a VAZ 2110, then it will be useful for you to find out what types can be found on sale:

1. Universal BCs - such devices are designed for installation on any car; as a rule, they are used as an alternative to a rear view mirror. In some cases, universal devices can be installed on glass.
2. Individual-type devices that are aimed at several car models at once. For example, domestic “eights”, “nines” and “tens” are one group, characterized by the presence of an old dashboard in the cabin.

Diagram VAZ 2112 injector 16 valves for Euro-3

Diagram VAZ 2112 injector 16 valves for Euro-3 with controller M7.9.7

Kinds

Today you can find contact and contactless immobilizers, the latter of which are more in demand. The first ones are controlled using a key, and for the second ones a key fob or card is provided. They are combined with other anti-theft systems.

Key master

On the VAZ 2110, the immobilizer is found only on models with injection engines. When leaving the production line, the car's protective functions are not activated. A special set of keys is provided for this. One of them is red. This is the master key that activates the protection. The other two, which are black, are used by the car owner.

“Training”, that is, activation, is usually performed at a car dealership before preparing the car for sale. Although some clients are easily able to perform the procedure on their own.

The VAZ 2110 was the first to be equipped with APS-4 systems, but after some time improved APS-6 models appeared. The reading part is installed in the steering column, and the code is installed in the ignition key. APS-6 additionally serves to control fog lights and electric windows.

APS-6 module board

Sometimes an updated immobilizer comes in an old housing, which, apparently, was in abundance at production. If this is so, then there is a number 4 on the case, and the inscription APS 6 is printed on the board. Microcircuits may differ from each other due to different periods of their production.

Connection diagrams for VAZ 2112

Rear window wiper and washer connection diagram

• 1 - electric washer motor
• 2 — block of relays and fuses
• 3 - ignition switch
• 4 - rear window wiper and washer switch
• 5 — motor with rear window wiper gearbox
• K6 - additional relyushka
• A - to sources of electricity
• B - method of conventional numbering of connectors in the terminal block of a motor with a gearbox

For the rear window wiper of a VAZ 2112, in a continuous manner, with a load of the motor with a gearbox with a force of 1 Nm, a supply voltage of 13.5 V and an ambient temperature of (25±10) °C, the number of double strokes of the output shaft of the gearmotor must be from 20-30 min- 1, and the consumed current is no more than 3 A. In intermittent order under the same conditions, the number of double movements of the output shaft of the motor with gearbox must be from 15 to 18 min 1 and the current used is also no more than 3 A. In this case, the initial 3 - 4 Swings after connection must be performed in a continuous manner.

Electrical diagram for connecting electronic ignition

The ignition structure uses a spark distribution method called the “idle spark” method. The engine cylinders are combined into pairs 1-4 and 2-3 and spark formation occurs in 2 cylinders at once: in the pot in which the compression cycle ends (working spark), and in the cylinder where the exhaust cycle occurs (idle spark). With a constant direction of current in the windings of the ignition coils, the spark formation current for one spark plug always passes from the central electrode to the side electrode, and for the second - from the side to the central one.

Electrical diagram for connecting the inflatable cushion VAZ 2112

Attention ! Removal and installation of a steering wheel with an airbag must be performed without the use of electric tools. Do not disassemble or repair the computer, airbag module and steering wheel contact coil. After turning off the battery, you must wait at least 5 minutes before disassembling.

Circuit breakers

Now let's see which fuses are responsible for what in the same mounting block. I will also give the main reasons for troubleshooting.

F1 (5 A) - license plate lighting lamps, dashboard lighting, side lights on the panel, trunk lamp, left side lights . If any of the listed lamps do not work, check this fuse, as well as the lamps themselves and their contacts. If everything is in order, check the headlight switch button.

F2 (7.5 A) - low beam in the left headlight . If both low beam headlights do not work, also check relay K4 and the lamps themselves. It could also be the light switch and its contacts.

F3 (10 A) - high beam in the left headlight . If both high beam headlights do not work, check the K5 relay, the lamps themselves and the high beam switch knob.

F4 (10 A) - front fog lamp on the right side . If both fog lights do not work, check relay 9 and the headlight bulbs themselves, as well as the switch and its contacts.

F5 (30 A) - window lift motors . If the power windows do not work, check this fuse and relay 5. In winter, check if the windows are frozen, warm them up and clear them of ice if necessary. It could also be the window lift motor, its mechanism and gears; in order to get to it, you need to remove the trim of the desired door.

F6 (15 A) - portable lamp fuse.

VAZ 2112 wiring diagram

Alternator wiring diagram for VAZ 2112

Some machines were equipped with AAK-5102 generators made in Slovenia. In terms of its characteristics and connection dimensions, it is identical to the generator 94.3701.

Starter wiring diagram

1. accumulator battery
2. magneto
3. starter VAZ 2112 model 57.3708
4. ignition switch

Wiring diagram for headlights and fog lights VAZ 2112

The low and high beam headlights are connected using the K4 and K5 relays located in the relay and fuse box.

Wiring diagram for fog lights VAZ 2112

On the VAZ 2112 hatchback, in a variant modification, fog lamps are mounted in the front bumpers. The diagram of which is presented below.

Electrical wiring diagram for outdoor lighting

Wiring diagram for hatchback turn signals and hazard lights

Injection "ten"

In addition to the wiring that is provided for the VAZ 2110 - carburetor, "ten" - injector, it is also equipped with a number of fuses that protect almost all of it from the possibility of short circuiting.

Structurally, fuses are not provided only for the electrical supply via a relay wire from the battery, in the car starting and ignition circuit, as well as for the wire going to the generator.

Electrical circuit of an injection car

In addition, the injector (as opposed to the carburetor) is a more complex system, and in order to repair it yourself, you need to understand it well. The controller in this wiring system “reads” the operation of all systems, thereby determining and setting many indicators - calculation of the fuel mixture, etc.

Electrical control circuit for the VAZ 2112 engine

Along with the letter designation of the wire colors in this diagram, the designation of the number of the circuit element to which this wire is connected is used. For example -4-. The symbol -S7- or -SF- means that the core is connected to the circuit element numbered 7 or indicated by the letter F through a connection point not shown in the diagram. In some cases, in addition to the designation, the element number is given through an oblique fraction and the connector number, for example -5/15-.

Pinout of the dashboard VAZ2108, 2109, 21099

Connection diagram of the instrument cluster before 1996.

1 – relay-interrupter for the parking brake warning lamp; 2 – tachometer with voltage stabilizer; 3 – instrument cluster lighting lamp; 4 – temperature indicator; 5 – BSK control unit; 6 – fuel level indicator; 7 – resistor 50 Ohm, 5 W; 8 – control lamp “CHECK ENGINE” for the toxicity reduction system; 9 – control lamp for high beam headlights; 10 – side light indicator lamp; 11 – backup warning lamp; 12 – warning lamp for unfastened seat belts; 13 – control lamp for left direction indicators; 14 – resistor 470 Ohm, 0.25 W; 15 – electronic voltmeter; 16 – control lamp for right direction indicators; 17 – warning lamp for emergency oil pressure; 18 – fuel reserve warning lamp; 19 – control lamp for the carburetor air damper; 20 – indicator lamp “CHECK ENGINE” for the fuel injection system; 21 – parking brake warning lamp.

Books and diagrams for repairing VAZ 2112

Here you can download the following books and diagrams for the repair and operation of VAZ 2112 .

Wiring test for non-working brake lights (ground test)

Let's look at the basic diagram: the brake lights and the reversing lamps have a common ground pin. If contact with this pin is broken, the reverse lamps will not turn on. Well, brake lights too.

Connector for connecting “internal” lights. On the left side there is a connector through which the wiring goes to the fifth door. The connector has black and red wires. Check the voltages on them. Most often the ground on the black wire does not ring. But maybe the connector itself needs to be cleaned.

1. Disconnect the connector with two wires from the limit switch;
2. Using 17mm wrenches, loosen the two nuts: holding the lower nut, rotate the upper one;
3. The end switch is removed as an assembly and checked with an ohmmeter.

By the way, one of the connector terminals receives a voltage of “12 Volts”. Check it!