VAZ 2109 stove wiring diagram

The electric motor of the heater fan (“stove”) on VAZ 2108, 2109, 21099 cars and their modifications is a commutator, DC motor with excitation from permanent magnets. Has three rotation speeds. The speed is selected by a four-position switch on the instrument panel. Below are the electrical diagrams for connecting it.

Wiring diagram for the electric motor fan (“stove”) of VAZ 2108, 2109, 21099 cars with a “low” instrument panel and mounting block 17.3722

Wiring diagram for the electric motor fan (“stove”) of VAZ 2108, 2109, 21099 cars with a “high” instrument panel and mounting block 2114

Notes and additions

— The fan electric motor can be connected to the on-board network either directly (highest speed) or through an additional resistor having two resistance spirals (0.23 Ohm and 0.82 Ohm). If both spirals are included in the chain, the speed is low, if one is 0.23, the speed is average.

More articles on electrical equipment of VAZ 2108, 2109, 21099 cars

Schematic electrical diagrams, connecting devices and pinouts of connectors

The VAZ-2109 car was produced at AvtoVAZ from 1987 to 1997. Years of production 21099: 1990-2004 - in Russia, 2004-2011 - in Ukraine. Here are colored wiring diagrams (for the injector and carburetor) with a description of all the elements for various modifications. The information is intended for self-repair of cars. Electrical circuits are divided into several blocks for ease of viewing via a computer or smartphone; there are also circuits in the form of a single picture with a description of the elements - for printing on a printer.

Like the entire car, its electrical equipment was at an average level, so owners of Nines should know the wiring diagram thoroughly for routine repairs with their own hands.

Modifications of VAZ-2109

VAZ-2109 . The basic model, which was produced from 1987 to 1997, was equipped with a 1.3-liter VAZ-2108 carburetor engine with a capacity of 64 horsepower.

VAZ-21091 . Modification of a car with a derated VAZ-21081 engine, 1.1 liter and 54 horsepower. It was mass-produced from 1987 to 1997.

VAZ-21093 . Modification of a car with a VAZ-21083 carburetor engine, 1.5 liters and 73.4 horsepower. Serially produced from 1988 to 2006.

VAZ-21093i . Modification with a VAZ-2111-80 injection engine, 1.5 liters. the first prototype appeared in 1994, mass production began in November 1998.

VAZ 21093-22 . Model made specifically for the Finnish market. It features improved interior trim, pre-installed alloy wheels and a new dashboard. The car was equipped with a 1.5 liter injection engine. Produced from 1995 to 1998.

VAZ-210934 .
An all-wheel drive SUV with a VAZ-21093 body mounted on a Niva frame, on which the suspension, steering, engine, gearbox and transfer case from the same VAZ-2121 Niva model were already installed.

Weight (-) on the VAZ 2114 engine

Where is the mass located?

When operating a car, it is important to know all the places where the mass of the VAZ 2114 engine is located. If a malfunction occurs in this direction, you can quickly detect the source of the problem and eliminate it accordingly. So, where is the mass of the ECU for the VAZ 2114? Let's try to understand this issue.

Where is the mass located on the VAZ 2114:

Battery weight of VAZ 2114

The negative battery branch consists of branches of wires of two types - thin and thick wire. The battery negative is directed to the motor housing using a thick wire. As a result of poor contact fastening, the charge will be supplied in a small volume, as a result, the starter will not be able to develop sufficient power, and the ECM will therefore fail, because it receives the required mass from the engine.

In order to check the negative charge connections between the battery and the engine, it is necessary to check the reliability of the two nuts, so you first need to loosen the nut from the outside and tighten the nut from the inside, and then screw the nut back on from the outside.

A thin negative wire is connected to the car body next to the battery. It plays the role of an energy source necessary for all consumers equipped in the car. To check, you also need to make sure the degree of tension of the nut both with the body and with the battery terminal.

Weight of engines VAZ 2114

Samar engines with a volume of 1.5 liters take weight from the engine body, from the mounting plugs, which are located to the right of the cylinder head.

Samar engines with a volume of 1.6 liters, or 1.5 liters equipped with a new type of ECM, take weight from a welded stud. The pin is attached directly to the metal body of the instrument panel near the floor tunnel in the area under the ashtray. When assembled at the manufacturer's factory, the stud is usually poorly secured and painted, as a result, during operation of the machine it can become completely loose, as a result, when the ventilation device is turned on, the electrical voltage of the system will drop, and the following devices will react accordingly: mass air flow sensor, air metering sensor, air pressure sensor.

Instrument panel weight.

Weight of the VAZ 2114 dashboard

In this version, there is a connection between the torpedo harness, the circuit from the mounting relay and fuse block, and the rear harness. This connection is located under the steering shaft mount. If the connection of this mount is not of good quality, problems may arise in the operation of the dashboard readings when the main energy consumers are turned on, for example: turn signals, headlights, etc.

Electric motor heater weight

This ground connection is located under the instrument panel on the left side of the heater housing.

Poor engine weight

If the following problems occur:

If the battery is charged, the car will not start.
The battery is not charging, the voltage is unstable, constantly fluctuating, but the generator is in perfect order. To reset the battery, you need to reboot.

The occurrence of these problems indicates that the car has a poor engine weight. It is from the battery that the positive charge is supplied to the starter, and the charge is supplied to the fuse panel located under the hood through a thin wire.

The negative charge from the battery goes to the engine, because This is the largest part of the car, namely from it to the rest of the devices.

If the ground is bad, the car has difficulty starting due to lack of current. If you apply charging, the voltage is set to a minimum and the car often continues to operate with the battery.

How to check the ground on the engine? It's easy enough to do.

To check, you will need a cigarette lighter, which is connected with one end to the negative of the battery and the other to the engine; the connection must be thoroughly cleaned. We start the engine, if the car starts more easily and the voltage has increased, this indicates the need to clear the ground.

Unstable operation of the engine at idle speed of the VAZ 2114 is one of the reasons for checking the mass; it may be accompanied by poor, weak contact, resulting in unreliable readings from car sensors, or an incorrect control action is transmitted to the idle speed regulator.

No weight on the engine

If there is no ground on the engine, it is necessary to check the quality of all electrical system contacts coming directly from the engine housing.

Or you need to check the condition of the stud, because... The manufacturer does not process this type of equipment in any way other than painting, so they are often susceptible to oxidation or corrosion. As a result of using low-quality parts, voltage drops in the system, which is accompanied by a lack of mass on the engine, resulting in problems in the operation of the machine.

Troubleshooting

For uninterrupted operation of the battery, the system must be equipped with good quality wires; in this case, copper wires are the most suitable, since they have the best characteristics when operating under voltage.

The thin positive wire coming from the generator must be replaced with a thicker wire.

To protect the existing mass and ensure longer and more trouble-free operation, it is necessary to treat all existing connections and terminal contacts with a special lubricant that has an anti-oxidation function.

You can strengthen the mass by placing additional mass near the generator. Of course, you should not use a thin negative wire to connect to the car body; it is better to use a thick wire. The result will be better, and if problems arise with the main wire, the additional one will be able to start the car, and again you will not have to listen to the clicking of the relay.

As a result of the procedures performed, the car will start more confidently. We will eliminate the problem of frequent battery discharge, which will avoid the loss of much-needed volts for the car and, as a result, ensure the most stable and sufficiently high voltage coming from the generator.

Wiring diagram for VAZ-2109 carburetor

Headlight.
Electric motor for headlight glass cleaning system. An optional part, used mainly on export vehicles.
Limit switch for powering the engine compartment lamp.
Klaxon.
An electric motor drives a fan installed on the radiator of the cooling system.
Temperature indicator that provides a control signal for the electric drive of the fan impeller.
Alternator.
Fluid supply valve for headlight glasses. Used in conjunction with paragraph 2.
Fluid supply valve for the glass of the fifth door.
Fluid supply valve to the front glass.
Spark plugs.
Hall sensor used to distribute ignition pulses.
Coil.
Limit switch for reverse gear lights.
Fluid temperature meter in the cooling system.
Starter.
Accumulator battery.
A sensor that measures the fluid level in the brake booster.
Switch that controls the ignition system.
Sensor for determining the position of the top dead center of the piston of the first cylinder. Installed on some export VAZ 2109 with a diagnostic system. Found only on cars before 1995.
Diagnostic block. Optional element, installed together with item 20.
Controller for controlling the solenoid valve installed in the carburetor.
Starter switch contact block.
Limit switch on the carburetor.
Economizer valve.
Sensor signaling an emergency decrease in oil pressure.
Washer pump drive.
Fan impeller motor for ventilation and heating systems.
Resistance providing additional fan speeds.
Speed shifter.
Windshield wiper drive.
Cigarette lighter.
Illumination system for levers for adjusting heater operating parameters.
Socket for additional equipment.
Lamp for auxiliary lighting of the engine compartment.
Illumination system for the glove box on the instrument panel.
Relay and fuse link mounting block.
Instrument panel light switch.
Parking brake lamp limit switch.
Brake lamp limit switch.
Steering column switch lever block.
Exterior lamp switch.
Hazard switch.
Turn on the rear fog lamp.
Bimetallic fog lamp fuse.
Heated glass switch on the fifth door.
Turn signal repeaters on the front fenders.
Central interior lighting.
Individual lampshade.
Switches for backlight operation on the middle pillars.
Ignition switching unit.
Egnition lock.
“Low” type instrument cluster.
Choke limit switch on the carburetor.
Rear lights.
Fuel level meter in the tank.
Heated glass.
Rear wiper drive.
Two lamps for room illumination.

Design of the VAZ-21099 heater

And then everything is simple: the created flow passes through the radiator honeycombs, where heat exchange occurs, as a result, heat is transferred to the air, which then blows into the required zones through the air ducts.

The design of the VAZ-21099 stove includes several main components:

stove body made of plastic;
heating system radiator (connected to the cooling system);
electric fan;
air ducts;
heater control mechanism.

This car used heaters of two modifications (old and new), which were slightly different in design, but their components were completely identical.

Housing, radiator, dampers

Thanks to the housing, the required redirection of heating is ensured, since the movement created by the fan motor is immediately fed into it, rather than being dissipated. The body of the VAZ 2109 stove itself consists of two halves, connected to each other with special brackets. To reduce flow losses, a seal is placed between its halves. Partitions are made inside both halves, which provide the correct direction.

There is also a niche inside this case into which the radiator is installed. Initially, the radiator was made of brass, but now it is almost always made of aluminum. The design of the stove radiator 2109 is identical to the main one (consists of two tanks, tubes through which coolant circulates, and plates that form honeycombs), but is significantly smaller in size.

Video: The stove in the VAZ 2108, 2109, 21099, 2110, 2111, 2112, 2113, 2114, 2115 HEATS poorly

Equipment diagram for VAZ-2109 injector

The VAZ 2109 wiring for the injector has many connectors for connecting sensors to the computer.

TPS (throttle position sensor);
DPKV (crankshaft position sensor);
DT (temperature sensor);
DSA (vehicle speed sensor);
Canister purge valve;
MAF (mass air flow sensor);
DD (knock sensor) and others.

The weak point of the harnesses is the power wiring on the bottom shelf of the radiator, which is constantly exposed to high temperatures and in this place it is in no way protected from water and dirt. Another problem is a harness under the carpet next to the driver's seat. Moisture constantly accumulates there, and in order to remove it, you need to dry the floor, inevitably tugging on the rope.

Since the mid-90s, VAZ 2109 began to use engines with an injection system, which greatly changed the electrical layout of the engine compartment and instrument panel. Below is an electrical diagram of a 1999 car with an ECM type GM ISFI-2S and January 4/4.1.

1 - nozzle system;
2 - candles;
3 — ignition control module;
4 — diagnostic connector;
5 — General Motors or January controller;
6 — connector for connecting the instrument cluster;
7 — main relay of the system;
8 — fuse for power supply wiring of the controller and ignition system module;
9 — protection of the speed sensor and air flow meter circuits;
10 — fuel supply pump power protection;
11 — fuel pump controller;
12 — engine temperature meter;
13 — idle system;
14 — detonation meter;
15 — tank purge system for collecting fuel vapors;
16 — crankshaft position meter;
17 — speed meter;
18 — air flow meter;
19 — lambda probe;
20 — throttle position angle meter;
21 — electric fuel pump complete with fuel level sensor;
22 — connection of the ignition system;
23 — control lamp;
24 — ignition switch;
25 - switching block;
26 — radiator cooling fan.

Since 2002, all VAZ 2109 began to be equipped only with engines with an injection system. The diagram shows the electrical wiring harness for the Bosch MP7.0 ECM (Euro 2 standards) on a 2003 car with a VAZ 2111 engine.

1 — four nozzles;
2 — spark plugs 2109;
3 — ignition distribution module;
4 - diagnostic connector, led into the car interior;
5 — Bosch controller connector;
6 — connector for the combination of lamps and instruments;
7 - main switching device of the system;
8 — fuse-link of the main device;
9 — controller for controlling the parameters of the fan on the cooling radiator;
10 — fan controller fuse;
11 — fuel pump control relay;
12 — fuel pump wiring fuse;
13 — intake air flow sensor;
14 — throttle opening angle sensor;
15 — engine temperature meter;
16 — regulator of idle speed parameters;
17 — sensor for measuring detonation in cylinders;
18 — crankshaft position sensor;
19 — lambda probe;
20 — immobilizer control unit;
21 — immobilizer status indicator;
22 — speed sensor;
23 - electric motor for driving the fuel pump; in the same module there is a device for measuring the remaining fuel in the tank;
24 — purge valve for the gasoline vapor recovery system;
25 — connector of the ignition system braid;
26 — instrument cluster with Check Engine indicator and warning lamp;
27 — ignition system start relay;
28 - lock;
29 — installation and switching block;
30 - cooling system fan.

Internal structure and principle of operation

The heating system installed on the VAZ-2109 has its own differences and features compared to other cars in the AvtoVAZ line.

The heater consists of a pair of plastic casings (on the right and on the left), which are connected to each other along the entire perimeter with clamping brackets. A special flagellum is placed in the grooves of the casings to seal it well. The fan supplies air flow to the interior of the machine. The VAZ-2109 stove is designed so that the fan can be easily removed independently from the engine compartment.

An electric motor of type 45.37230 is attached to the casing, and a fan is located on its shaft. To obtain its desired rotation speed, additional resistance was provided. It was attached to the left side of the hole in the heater casing using a screw.

Heating system radiator

A radiator is built into the stove body to heat the air flows, which then blow into the cabin. Using three screws, this element of the system is screwed to the right casing and sealed with a polyurethane foam gasket.

The radiator design is a combination of:

2 rows of tubes.
2 rows of cooling plates.
2 plastic tanks.

It has two pairs of pipes, it is connected to the cooling system by rubber pipes, where coolant circulation is ensured using a pump. In the valve casing, on the axis of the supply line, there is a plate valve, which has a hole; it allows the coolant to pass through. The valve lever is connected by a rod to the handle lever, which also controls the process of heating the air flow. If you turn this lever, the hole in the valve will open the line for coolant to enter the radiator.

Relay and fuse box diagram 2109

The fuse blocks do not depend on the fuel injection system used - carburetor or injector. BP will differ only by year of manufacture of the car. That is, the mounting blocks for the carburetor and injector are the same. The VAZ 2109-099 fuse box (carburetor, injector) is located under the hood, in the compartment in front of the windshield on the left side.

Fuse block 2114-3722010-18

K1-relay for turning on headlight cleaners; K2-relay-breaker for direction indicators and hazard warning lights; K3 - windshield wiper relay; K4-relay for monitoring the health of lamps; K5-power window relay; K6 - relay for turning on sound signals; K7-relay for turning on the electric heating of the rear window; K8-relay for high beam headlights; K9-relay for low beam headlights; F1-F16 - fuses.

Fuse block 2114-3722010-60

K1 - Headlight wiper relay, K2 - Turn signal and hazard warning relay, K3 - Windshield wiper relay, K4 - Brake light and parking light relay, K5 - Power window relay, K6 - Horn relay , K7 - Rear window heating relay, K8 - Headlight high beam relay, K9 - Headlight low beam relay, F1 - F16 - Fuses, F1 - F20 - Spare fuses.

Attention! The power terminals on the generator often become loose, heat up, spark and melt the wiring. Pay attention to this point when searching for possible faults yourself.

Electrical diagram - wiring of a VAZ 2109 car with a carburetor engine and a low instrument panel (torpedo).

A - the order of conditional numbering of plugs in the ignition switch block of VAZ 2109 electrical equipment. B - the order of conditional numbering of the plugs in the block of the electric motor of the windshield wiper of the VAZ 2109.

Picture of the VAZ 2109 electrical circuit:

Table of decoding of the VAZ 2109 electrical circuit:

What is a stove fan

A car heater, which is popularly called a stove, is designed to perform a simple and at the same time important function - heating the interior. In addition, the device helps eliminate fogging of windows in cold and damp weather. During normal operation of the heating system, the temperature in the interior of the “nine” should be maintained at +20 ˚С with the same indicators outside, but only with a minus sign. In the legs, with maximum heating mode, the value should be maintained at +25 ˚С. One of the important components of the stove, in addition to the radiator, is the fan. The purpose of this device, its malfunctions and repairs should be considered in more detail.

Purpose of the device

The purpose of the motor is to increase the efficiency of the heating system and air circulation in the car. Its operation is based on air intake from outside and its subsequent supply into the cabin through the radiator. As a result of the air flow passing through the heat exchanger, the air enters the cabin already warmed up.