Replacing the ignition switch on a VAZ 2114 with your own hands in your garage

Although replacing the ignition switch of a VAZ 2114 is an important and time-consuming procedure, nevertheless, any driver can carry it out independently, without contacting a car service center. This procedure is useful not only from a budget point of view, but can also be exciting for some car enthusiasts and be of some “sporting” interest. This unit, which is a kind of “switch” of the car, plays a very important role in the starting system of the car. It takes part in the operation of a variety of electrical circuits, such as the starter, headlights, turn signals, and window lifts. As a result, its failure leads to the fact that the car becomes impossible to drive. Let's consider what to do if this trouble does occur.

When replacement is required

Ignition switch kit

There are several basic situations when a car owner may urgently need to replace a unit. The reasons for the malfunction of the VAZ 2114 ignition switch include:

Mechanical failure of keys;
Lost key;
Damage to the lock as a result of an attempted theft;
Broken ignition contacts.

Purpose and principle of operation

The ignition switch is an electrical device responsible for both starting the engine and turning on the power in the on-board network. It has 3 different sector switch positions controlled by the ignition key.

Each of them is responsible for its own separate function, namely:

Position “Off 0” - power is supplied to contacts 30 - all equipment is turned off.
Position “Ignition 1” - power is supplied to contacts 30-15 - current goes to the ignition system, instruments, headlights, windshield wipers, stove, cigarette lighter, glass heater, turn signals.
Position “Starter 2” - power is supplied to contacts 30-15 and 30-50 - all the same circuits are energized as in position “1”, as well as the starter.

It is worth noting that the car has a number of electrical circuits that can be turned on regardless of the position of the key, namely: interior lighting, hazard warning lights, high beams, brake light and horn.

Pinout of the ignition switch
In turn, the pinout of the ignition switch of the VAZ 2114 is as follows (the legs of the lock connector are indicated):

1 - +12 volts for the key sensor;
2 - to ground (if the driver's door is open);
3 - +12 volts to the starter (aka contact 50);
4 - +12 volts with the ignition on (aka - pin 15);
5 - +12 volts with the key inside the lock;
6 - +12 volts for lock illumination;
7 - +12 volts from the battery (aka - pin 30);
8 - not applicable.

The VAZ 2114 ignition circuit, according to which the lock is connected to the on-board network in accordance with the pinout presented above, looks like this:

Troubleshooting Methods

There are two methods for detecting faults:

Visual;
Diagnostic.

Ignition switch circuit

We suggest studying a visual method for determining a malfunction or breakdown of the contact elements of the ignition switch using the table.

Action	The device is working properly	The device is faulty
Turn the key to the right position (ignition)	All electrical equipment turns on	All or part of the electrical equipment does not work
Turn the key to the second position	The starter is spinning	The starter does not work, the traction relay does not click under the hood

But diagnostics allows you to get a more detailed answer. In addition, a visual inspection will not give you the opportunity to find all the reasons that could cause the ignition switch to break down.

To work, you will need a mini-tester and a multimeter in ohmmeter mode:

Disconnect the power supply from the ignition switch. To do this, you need to remove the skin from the steering column;
Switch your multimeter to an ohmmeter;
On the block coming from the lock you need to find pins 7 and 4, which correspond to pins 15 and 30;
Connect the multimeter probes to them;
Turn the key to the “Ignition” position;
On the block, find pins 7 and 3, corresponding to 50 and 30. Also connect a multimeter to them;
Turn the key to the second position - Start the engine;
If serviceability is present, the device will show zero resistance in both test cases.

Characteristics of a contact group

To begin with, we suggest finding out why an ignition switch contact group is needed, what its structure is and how it works.

Purpose and functions

In essence, KGZZ is used to ensure the connection of all electrical circuits of the vehicle without exception. That is, when the driver turns the key in the lock, the KGZZ closes the contacts, thus allowing the use of all electrical devices without exception.

Device

Diagram of the lock The ignition switch itself is a simple circuit breaker. When you turn the key, the contacts are adjusted, making it possible to start the engine, power the equipment, and also stop the power unit. If you disassemble the body of the lock itself, you will see that the device itself is located inside it, as well as a large number of wires connected to each other. The wires to the lock come from the battery.

The contact group of the ignition switch itself goes directly to the connection point of these electrical devices. To prevent short circuits and to delimit the contact elements themselves, the KGZZ is mounted in a plastic case.

Principle of operation

An automobile ignition system can be either battery-based or generator-based. Their fundamental difference is that battery ignition is equipped with an autonomous power source; accordingly, all electrical equipment can be turned on without starting the engine. As for the generator system, in this case, activation of electrical equipment is possible only after starting the engine.

When the driver turns the key in the lock, the electrical circuit contacts are closed from the negative terminal on the battery to the coil. At the same time, voltage begins to flow through the wiring to the lock, which is supplied to the coil through contacts, after which it returns to the positive output of the battery.

At the moment when the voltage passes through the coil, a very high voltage is generated in it, which is subsequently transmitted to the spark plugs. Ultimately, the contacts close and the engine starts. In addition to the ignition circuit itself, there are other electrical circuits in the car that conduct voltage from the key to electrical appliances. Each of the wires is responsible for connecting the contacts to each other (the author of the video is the Auto Repair and Maintenance channel).

Basic faults

Briefly about the reasons why repair of the ignition switch contact group may be required:

Overloading of the device, which may be due to the installation of additional devices of increased power, as a result of which a higher voltage will pass through the KGZZ. For some time, the device can cope with this current, but over time, carbon deposits will begin to form on it. It should be noted that this deposit, as a rule, appears precisely inside the contact, and not on its surface, then the only way out is to replace the contact group. To prevent this problem, all additional devices must be connected via fuses or relays.
Short circuit in the electrical network. If a short circuit occurs, this may also cause high power voltage to pass through the CGZZ, which again will cause its failure.
Many motorists who changed the KGZZ faced the problem of abrasion of the tracks, as well as the contacts themselves. This problem usually occurs as a result of wear and tear on the lock, but in some cases the cause may be faulty.
Mechanical failure of contact elements, as well as other components of the group.
Overheating of the device, which can lead to damage to the design of the CGZZ. Overheating, as a rule, also occurs as a result of increased load on the device. When working in conditions of elevated temperatures, the tracks may move or even break (video author - AlexAvtoKhlam).

Preparation

At the preparation stage, you will need to collect the necessary tools near you, which will be useful in the process of dismantling and installing a new ignition switch. You will also have to remove the steering cover and steering column shifters. Doing this is quite difficult, but we will tell you step by step about all the nuances of these preparatory activities. So you can easily figure out for yourself how to remove the ignition switch on a VAZ 2114.

Replacement process

Tools you will need:

Phillips strong screwdriver;
Open-end wrench 10 millimeters;
Chisel;
Hammer;
Pliers or pliers;
New ignition switch assembly;
Lock mounting screws (4 pieces).

Now let's move on to the casing and switches. For more convenient work, many advise removing the steering column switches and the steering wheel itself. Dismantling the casing is performed in the following sequence:

Disconnect the negative cable from the battery. Nobody has yet canceled the requirements for personal safety and protection against electric shocks;
Unscrew the three screws securing the two parts of the casing. A screwdriver is useful for this;
Unscrew the screw that connects the housing to the connector of the steering column switches;
Remove the two screws that hold the lower housing to the steering column;
The lever that fixes the column at the corner leads down;
The steering wheel also goes down;
The lower casing is then removed;
The power supply from the emergency lights must be disconnected;
Now you can remove the top casing;
To dismantle the steering column switches, you need to act one by one;
Simultaneously press both latches and thereby remove the elements from their seats;
Disconnect them from the power supply.

Removing a faulty lock

Unscrewing the ignition switch bolts with a chisel
In practice, replacing the ignition switch on a VAZ 2114 will be impossible until you get rid of the old one. This is not difficult to do, but you will have to spend some time on your car.

Once you have gained access to the ignition switch, or rather its housing, you will notice that the lock is attached to the steering column with four bolts. The problem is that they don't have heads.
This phenomenon is part of the “unique” factory anti-theft system manufactured by AvtoVAZ. In fact, such a system makes it somewhat more difficult for criminals who do not have a key to start the engine. So don't scold them too much.
These bolts are loosened with a chisel and hammer, and their removal is done using pliers.
Next, remove the bracket from the column;
Be sure to unplug the power supply. In general, the wiring diagram for the VAZ 2114 ignition switch is simple if you buy the lock assembled. You don't have to solder anything or figure out which wire goes where. Everything is assembled into a block, so all that remains is to insert it into the appropriate connector. That's all.
By disconnecting the power supply, you can now finally get rid of the failed ignition switch.

Let's summarize

From the step-by-step instructions we can conclude that replacing the ignition switch on a VAZ 2115 and other models is not difficult. The cost of replacing a lock at a service station will cost you from 500 to 700 rubles, so if you decide to replace the part yourself, you can save this amount.

Hi all! There have been no entries for a long time, and there’s nothing else to write about yet. Someone may ask why there is no record of installing an auto-corrector? The answer is simple, everything was installed a long time ago, BUT!

During operation, a small problem occurred regarding the ECM unit; spare parts are now of “very good quality.” And in the BUK itself the operational amplifier simply burned out or burst due to frost, one of these days the mikruha will come and make a recording. And now about the lock, about a month ago the ignition switch started acting up. The tape recorder began to cut out on bumps, why the tape recorder? Yes, because I made the power supply through the ignition switch, or rather from the sensor of the inserted key. At times everything was fine and I just thought that maybe snow got into the lock with the key, and that was what caused all this trouble. But as they say, the disease progresses. And it made me so sad that I decided it was time to solve this problem! I disassembled the steering column casing, picked up a chisel and a hammer and went ahead, tearing off the bolts. In principle, everything worked out quickly, then I disconnected the block and took it home.

The lock can be disassembled quite easily; you just need to unscrew three screws on the back plate.

Next, I carefully halved the lock; whoever will occupy the same position, carefully halve it, otherwise you might lose the ball with the springs.

I studied the design and came to the conclusion that the microswitch of the lock is to blame.

I decided to take it apart, took off the cover and saw that the rocker was broken. The trouble is, the microswitch is not sold separately, and buying a new lock for 1k is a toad.

Here is the hero of the occasion. I called for disassembly to find out if there was a 10-point lock, they said it was possible, they would call me back a little later. 2 hours later he called and said yes, yes. I immediately went there and picked up an almost new lock.

But I didn’t want to install it, I just updated my lock with the missing part and went through the secrets in the cylinder, otherwise they had become a little worn out after such a long time.

In principle, that’s all, then I lubricated the cylinder with lithol and safely installed the lock in place. I also bought new shear bolts in advance; I didn’t want to install regular ones on a turnkey basis.

Thank you all for your attention and good luck on the road! I also want to congratulate all men on February 23! Issue price: 300 ₽

The lock cylinder (lock cylinder) is a type of lock security mechanism, in the form of a cylinder, the working part of which can be rotated in the body only when a key is inserted into the cylinder hole. The uninterrupted operation of the lock cylinder protects the car from unauthorized entry and protects the owner’s property. Therefore, a malfunction of the lock cylinder is a serious concern that requires an immediate solution, and many car enthusiasts are seriously thinking about how to change the lock cylinder of a VAZ 2114 with their own hands.

Installing a new device

Now you can finally proceed directly to replacing the broken or worn out ignition switch on your VAZ2114 car.

Removing the ignition switch

To do this, follow the following sequence of actions:

Insert the key into the new lock and turn it to the first position. This will allow the latch, which is responsible for locking the steering shaft, to hide inside the housing structure;
Insert the lock into place following the reverse dismantling sequence;
Install the four retaining bolts and tighten them slightly.

Most common defects

If your car's ignition switch won't turn on, there's a good chance you're dealing with one of the most common problems:

the battery is low;
the battery terminals are not in good contact with each other;
switch malfunction;
security system error;
solenoid malfunction;
When cranking the engine it still won't start.

The groups of defects we have identified can be divided into 2 groups - mechanical and electrical. They will differ in negative receptors that lead to breakdowns.

This is interesting: Body identification number (VIN code) of the Lada Granta - we explain it carefully

Steering lock testing

Testing the steering wheel
If you do not check the operation of the steering wheel lock, you may encounter certain problems in the future. Therefore, do not waste your time on this event. It consists of removing the key from the ignition and turning the steering wheel at a slight angle.

If there is no lock, you will need to slightly adjust the position of the lock. Make sure it fits into the groove located on the steering shaft.
If the locking is effective, you will only need to tighten the four installed breakaway bolts until they stop. Twist until the heads break.

It is worth noting one very important nuance. Some people don't find it necessary to use breakaway bolts. Instead, the most common fixing bolts with a length of 20 millimeters and an M6 thread are used. On the one hand, this will make it easier to remove the device in the future, if such an event is required again. On the other hand, in the absence of a reliable anti-theft system, voluntarily giving attackers access to your car is not the best idea.

When the lock installation is completed and the test has passed, do not forget to connect the device to power and start the engine. If it starts, all systems dependent on the ignition switch are working, you can fully begin reassembly. Follow the reverse instructions for removing the casing and steering column switches. It would not be amiss to check the condition of certain nodes along the way. It is quite possible that some of them also need replacement or a little preventive maintenance.

How to replace the ignition switch on a VAZ 2114

In general, over time, the ignition switch began to die: the car started normally when cold, but when hot it started on the third try. Yesterday the castle outside the city died completely - I had to push it