What is the ignition relay responsible for?

212-2 Repair Focus I

Fuse and relay mounting blocks

To replace a fuse or relay, disconnect the negative cable terminal from the battery.
There are tongs on the cover of the additional block.

. with which we remove the fuses. Also on the cover, symbols show the location of the fuses, the electrical circuits they protect and the purpose of the relay. To access the interior fuse box.

. remove the cover. On its inside there are symbols indicating the circuits protected by fuses. It is more convenient to remove the fuse with pliers. To replace relays located in the mounting block above the fuses.

. Using a Phillips screwdriver, unscrew the five screws securing the shelf installed under the instrument panel on the driver’s side.

We move the shelf away from the instrument panel. The diagnostic connector block is fixed on the shelf.

Design and operating principle

When an electric current passes through the coil, an electromagnetic field is created, under the influence of which the armature moves inside the core. When the power is cut off, the field disappears and the armature begins to move freely along the core.

The ignition relay includes the following components:

Electromagnet;
Anchor;
Return spring;
Contacts;
A pair of windings.

The electromagnet, in turn, includes two coils in its design.

Coil type

Peculiarities

It is connected to the ignition relay housing, as well as the control output

The retractor coil is connected to the motor contact as well as the control terminal

Device location

The operating principle of the node is based on the following:

When voltage is applied to the control contact, electric current begins to flow through the coils. This leads to the appearance of an electromagnetic field, under the influence of which the armature moves, compressing the return spring;
The armature also moves the bendix, then the rod, which closes the contacts connecting the battery with the starter motor;
When the contacts are closed, a plus is supplied at the output of the retractor coil, which moves to the motor output. So the current stops passing through it - the magnetic field disappears, but the armature remains in the retracted position due to the influence of the magnetic field from the holding coil;
The armature returns to its original position after the engine is started and the power is turned off, which occurs under the action of the return spring;
In this case, the contacts open, the bendix is disengaged;
The contacts of the retractor relay are bolts that are installed in the textolite cover, as well as plates (can be round or rectangular). They close the bolts when the armature moves.

Where is the ignition relay located in a VAZ-2114 car?

If a car owner independently monitors the technical serviceability of his four-wheeled friend, then he must feel his car and know exactly where this or that element is located in order to quickly replace a component that has become unusable with a new one.
For example, the driver may notice the following:

the furnace fan will start to work intermittently;
The windshield wiper and glass heating either turn on normally or refuse to work;
the engine started to have trouble starting.

You should not immediately look for a breakdown in the starter or car module, because most often such a breakdown is caused by a starter relay that has become unusable. Experts do not recommend repairing such an element, since a failed element, even if it is thoroughly repaired, will very soon show signs of malfunction again, so the entire replacement operation will have to be repeated again. Replacing the so-called relay yourself is quite simple, but before doing this you should know exactly where the ignition relay is located on the VAZ-2114. We will deal with this issue, as well as with independent replacement of the “relay”, further in this article.

Ignition relay location

Finding the location of the ignition relay is quite simple, because this element in the VAZ-2114 injector is located on the left side of the steering wheel, and a decorative cover protects it from the eyes. A photo on an online resource will help you find out what this element looks like. In some cases, replacing an old relay with a new one does not require removing the protective casing. To do this, you just need to reach the relay with your hand, which you need to insert into a special hole located under the steering wheel.

But this replacement stage is not very convenient, so experts recommend that car owners still remove the protective cover when replacing the ignition relay, especially since such an operation is quite simple and easy.

Step-by-step replacement of the ignition relay

If during the inspection it turns out that the ignition switch relay has failed, then experts do not recommend repairing this element, as was previously said. To buy a new relay, minimal cash costs will be required, and every car enthusiast can make a replacement if all operations are carried out in stages:

The most important thing to do first is to disconnect the battery from the power supply; to do this, simply disconnect the negative terminal from the battery.
When using a screwdriver, it is best to use a slotted tool. You need to unscrew the 4 fasteners from the steering column casing to simplify the process of removing the “relay”.
The latch holding the lower part of the casing is most conveniently unscrewed using a Phillips screwdriver.
The casing, loosened from the fasteners, is carefully removed from its place.
The ignition relay is connected to wires that are located at the bottom of the block. To replace an element that has become unusable, you simply disconnect the wires from the block and install a new one in place of the old relay.

After this, you need to check the result of your own work by starting the engine of your car. If the fault does not show itself, it means that the replacement process was completed correctly, and the car owner can be proud of his next, albeit small, but still achievement.

After reading this article, everyone should understand that the process of replacing this device is simple and straightforward. And since the “relay” rarely fails, VAZ-2114 owners do not constantly have to perform such an operation. But if difficulties arise when replacing the ignition switch relay, you should never despair, because you can find the answer to any question in a training video on the Internet resource, which you can watch both day and night.

The training video lesson was prepared and conducted by true professionals who thoroughly understand all stages of car repair. Therefore, everyone will be able to obtain additional information on replacing the relay and determine its exact location from the photo. Well, after watching the training video, the replacement process will become even simpler and you can be sure that every car enthusiast can handle this task.

Check and replacement

If the car shows signs of malfunction, there are signs of breakdown of elements of the ignition system, do not rush to immediately blame the starter or module for everything. Often the culprit may be an element that is insignificant in size and cost - the relay.

Dismantling works

To check the relay you need:

Arm yourself with an ohmmeter or a multimeter more suitable for a motorist, which has all the necessary modes;
Check resistance indicators;
We check the holding coil by connecting one terminal of the tester to the relay connection terminal, and the second to ground, that is, the housing;
Next, the pull-in winding is checked. Here the terminals are connected to the starter motor field winding connection bolt and the control wire connection bolt;
If there is no resistance, there is only one output - failure.

Checking with a multimeter

There is no point in repairing the ignition switch. The element can only be replaced. Plus, it costs pennies.

Where is the ignition relay on the VAZ 2115 and how to find it

After the first unsuccessful attempts to start the car engine with the ignition key, without hearing the usual sounds of the starter, most car enthusiasts look for the cause of the malfunction in its breakdown. However, more often the cause is the ignition relay.

Why do you need an ignition relay?

This part was also installed on previous models of VAZ cars. However, on early versions of 2115 it may be absent. It is present in the starter circuit on VAZ-2115-01, 20, 21, 22 (injector, carburetor).

There are different names for this part: ignition relay, starter relay, starter interlock, ignition switch or lock relay, main relay.

But in any case, its purpose is the same - to facilitate engine starting and protect the starter from wear and damage. It turns off the power to the electric starter after starting the engine, limits the currents flowing through it, and protects against caking of contacts in the ignition switch or turning the key while the engine is running.

In addition, it ensures starting of the starter when the vehicle's electrical equipment is turned on and the battery is slightly discharged.

There are no fuses in the ignition circuit of cars of this model.

Thus, this inexpensive part protects you from expensive repairs and makes it easier to start the engine.

This part should not be confused with the retractor relay, located directly on the starter and intended to control (pulling or pushing) the mechanism for engaging the teeth of the electric starter and the flywheel.

Signs of breakdown

If, when you turn the ignition key, the electric starter does not spin, but you can hear soft clicks of the relay contacts operating, then the cause of the car malfunction is the starter. You can verify this by connecting it directly to the battery, bypassing this electric relay. If clicks are not heard, and the starter is working properly, then it’s time to change it.

Where is

Where is the VAZ-2115 ignition relay located? It is located in the car interior, to the left of the steering column, under the instrument panel. In order to see it, you need to dismantle the instrument panel. Nearby, to the left of it, there is a relay for turning on the rear fog lights. They are screwed onto the car body stud with a “10” nut and located in special blocks.

The relay also controls the vehicle's washer, heater, rear window defroster, and some other low-current electrical circuits. If these vehicle components are not operating properly, the serviceability of this part should be checked.

The type of electric ignition relay is 90.3777-10, it has four contacts, the control voltage is 12 volts. When buying a new relay, be careful: five-pin analogs designed for 24 volts have a similar appearance. Self-repair of this part is unprofitable due to its low cost.

Video: “Ignition relay VAZ-2115: where is it located?”

If you installed it yourself

The previous owner of the car, in the absence of such a standard part, could install it himself. Such installation kits are sold in car dealerships. In this case, the electric relay can be located not only in the “standard” location. Finding it without calling the previous owner will not be so easy.

If a breakdown of this part occurs on the way, then you can start the car by closing contacts 87 and 30 (the location and circuit diagram are printed on the top of the relay housing). In this case, you are allowed to use the machine without any restrictions. But at the first opportunity, be sure to fix the breakdown. The operation of the VAZ-2115 ignition system directly depends on the relay.

Power-up modes used

At each of the turns, the connection of certain devices is provided. There are markings in a circle in front of the socket indicating the position to which a certain mode corresponds.

Null

To activate this mode, just insert the key into the “secret”. In this case, devices that are directly connected to the battery remain active.

Additional consumers will be put into operation after the larva is rotated at a certain angle. Voltage is supplied to pins 30/1 and 30.

The first is “ignition”

In the first position, the driver can turn on the front lighting, such as the low and high headlights. The tidy and interior light up responsively. The connection diagram for the VAZ-2109 ignition switch is activated during this turn, releasing current to the 30–INT pair.

When there is a connection between terminals 30/1 and 15/1, the rear lights, reversing lights, turn signals are operational, and the generator excitation winding is energized. The XX solenoid valve also receives power.

In this position, contacts 30/1 and 15/2 are closed, which ensures the operation of, in addition to the head light optics, the functioning of the fog lights, the rear window wiper and its heating. The headlight cleaners, heater fan and engine cooling system propeller are connected to this contact.

The second is the “starter”

By moving the key to the current position, the driver does not block the connection of electrical consumers that were started in the previous “ignition” position. This fully applies to both the closed contacts of the pair 30/1 - 15/1, and to the pair 30 - INT.

The main change that the VAZ-2109 ignition switch connection diagram provides in such a situation is the activation of a pair of contacts 30–50. This allows the starter to start.

It is important to know that the key is not held in the “starter” position on its own, but springs back to the previous position automatically as soon as the driver releases the force.

Third – “parking”

At this angle of rotation, consumers started in the “ignition” position and closed contacts 30 – INT remain activated. A closed pair 30/1 - P is also added. It is responsible for the parking lighting.

Lada 2114 ▲Kompressor▲ с416мр47 › Logbook › Replacing the ignition relay for a VAZ 2114

Firework! Thank you for reading this post! An entry on how to change the ignition relay

in a VAZ 2114. This relay haunted me in the form of either
the heater (heater) fan
or not, and the windshield wipers and heated rear window did not work normally either. After replacement everything works as it should. The previous relay was from the factory and worked for almost 7 years. This surprised me.

Lada 2114 2007, petrol engine 1.6 l., 80 l. p., front wheel drive, manual transmission - do it yourself

Cars for sale

Lada 2114 Samara, 2012

Lada 2114 Samara, 2006

Lada 2114 Samara, 2005

Comments 133

Hello, I have a VAZ 2114. The plus on the ignition module has disappeared, where would you recommend dropping the engine control relay? I changed the fuses in order. When I turn the key, the switches click, but there is no plus on the ignition module.

Contact an electrician

Greetings. I have a VAZ 21120. The problem here is that I started the engine, turn it off, but it does not stall, I took out the key, but the engine and the tidy are working, turn it off by paying attention to the main relay. At the same time, I put a new relay on 30a, nothing changes, I put a relay from Ford on 40a, everything works in normal, normal mode, but the engine does not start. What could this be, please tell me

Good day, friends! Greetings from Kazakhstan! The problem is the cooling fan not working. I changed the temperature sensor, removed the fan sensor chip, it was in the way. I assembled everything, and when the highest temperature is reached, I wait for the fan to turn on. It won't turn on. I had to resort to forcibly turning on the fan by disconnecting the sensor chip. The car is a VAZ 2114. If you had such a problem, please share. C/u Timur. I will be immensely grateful.

If there is no signal sent to the engine coolant radiator fan, then it is either the coolant sensor, or the fan relay, or a fuse, or the ECU does not give a turn-on signal. IMHO.

Good day, can you tell me what I might have a VAZ 2114, a week ago the car sat for a day and wouldn’t start, after 2 days I decided to try to start it - it started as if nothing had happened, I drove for a week, the same situation, the car didn’t start for a day again won’t start, the fuel pump is fine It buzzes, the starter turns but there is no spark... I drove it every day. Dampness and rain outside, but what does this affect? Maybe they sent me a relay to see what else it could be?

Good afternoon I have a VAZ 2114. When accelerating sharply, the car accelerates too quickly, then stops, and the traction disappears. I stop, the speed freezes at 2000 rpm, and does not drop. Who had this problem? Please tell me. I will be immensely grateful. Best regards, Timur.

Do they drop when you turn off the ignition?

Yes. The car stalls with a shudder. When restarted it will start.

I would check the timing marks first.

Timing marks? I didn't think so. Thanks Pavel. I'll check and write an answer.

I had something similar on the 2114. It turned out that the generator pulley on the crankshaft had shifted a little, cutting off the pin.

That's it. I'm okay with this. Following your advice, I turned the crankshaft. The belt fell off by two teeth. Thank you very much. The check did not go out, I think there was some kind of error. But the engine began to run smoother.

PavelDotsenko

Do they drop when you turn off the ignition?

The revs fluctuate a little and it stays fine.

I would reset the battery terminal for a few minutes. Then I would check the VUT valve and the VUT hose.

I will definitely do it. But explain what VUT is.

PavelDotsenko

I would reset the battery terminal for a few minutes. Then I would check the VUT valve and the VUT hose.

Isn't this a vacuum cleaner?

PavelDotsenko

I would reset the battery terminal for a few minutes. Then I would check the VUT valve and the VUT hose.

Ignition relay VAZ 2107: all the secrets

Small and inconspicuous parts of the car are almost always ignored by drivers, because the chassis or the engine itself seem more important and require special care. However, big problems with the car most often arise due to some “little thing” - for example, the ignition relay. This is a miniature device that plays a very important role on the VAZ 2107.

Ignition relay VAZ 2107

The very first versions of the VAZ did not have a fuse and relay block, that is, power was supplied to the coil through the ignition switch itself. Such a motor starting system “ate up” a lot of electricity, and the contacts quickly oxidized and stopped functioning normally.

The VAZ 2107 is equipped with a modern ignition relay. Its main function is to reduce the load on the contacts when turning on the device, since the relay turns off some electrical circuits at the moment of startup. The ignition relay is used in both carburetor and injection VAZ 2107 models.

Principle of operation

The ignition relay is one of the elements of the entire ignition system. This system consists of:

spark plugs;
distributor;
capacitor;
breaker cam;
coils;
mounting block;
switch.

When the engine starts, power from the spark plugs goes to the ignition relay, which switches energy from some circuits. Thanks to this, the coil is supplied with the amount of power that is necessary to start the engine normally. To ensure uniform current supply, the relay works directly with the distributor and capacitor.

Relay location in the car

Any problems with the ignition relay on a VAZ 2107 begin with the fact that the driver cannot start the engine the first time. Suspicions immediately arise regarding the performance of certain components, but, as a rule, the relay is the first thing to be checked. On the “seven” it is located immediately behind the instrument panel and is fixed under the dashboard. This arrangement cannot be called convenient, because to get to the relay, you will need to remove the entire dashboard.

Variety of locks for VAZ 2109

Having abandoned the left-hand drive position as in the “classics”, the designers took care of a comfortable right-hand place for using the key in their first front-wheel drive cars. This added ergonomics to the cabin. To perform its function, the main element used to start the car is equipped with two components:

The first block is responsible for fixing the steering wheel while the key is removed. The second block contains the pinout of the VAZ-2109 ignition switch, which is entrusted with the mission of supplying voltage to consumer electrical appliances.

The developers have provided for the presence of certain electrical devices in the ninth Lada model, which are capable of operating regardless of the state of the ignition unit. These include:

car flashing emergency lights;
“stops” of rear lights;
dimensional optics;
interior lighting;
instrument panel light bulbs.

It must be taken into account that the VAZ-2109 ignition switch circuit is adjusted to its direct variety. Two types of locks can be installed in the “nines”:

late model, which has three positions, does not use a relay and is activated with a short key;
an early example that has four detent positions, a built-in relay and a long key.

Typically, drivers can easily visually determine the type of system installed. You can navigate by the working length of the key .