How to change the ignition switch on a VAZ 2110 with your own hands

Many car owners of the well-known “ten” are plagued by problems with the ignition switch. At the same time, inexperienced car enthusiasts immediately go to buy a new one.

However, you should not rush to do this, because sometimes malfunctions can be eliminated. Moreover, the reasons can be so simple that it is permissible to correct them yourself, without resorting to the help of specialists. Therefore, we decided to prepare for you a comprehensive guide to troubleshooting, as well as repairing and replacing the ignition switch on a VAZ 2110.

It’s worth noting right away that to identify faults, you need to use one important device called a multimeter. It can be very helpful in diagnosing ignition switch problems.

Installation of a new larva

To replace the lock core due to mechanical failure, remove it from the vehicle as described above. Then follow this algorithm:

1. Insert the key into the slot and use a Phillips screwdriver to unscrew the 3 screws holding the 2 halves of the lock body together.
2. Separate the housing while holding it with the key facing up. If you hold the lock in a different position during disassembly and do not insert the key, the insides will spill out and you will not understand how to put them back together. In this case, the ball with springs may get lost.
3. Remove the locking mechanism, which consists of two spring-loaded parts, and pull out the spring itself.
4. After removing the key, carefully remove the core so that the ball with the spring (located on the side of the cylinder) is not lost.

To disassemble the case, you need to unscrew 3 screws

Before replacing, it is necessary to remove the return spring from the old cylinder, since it is not sold complete with a new core. The spring is inside the part on the back side in a cocked state; it must be installed in the same form on the new cylinder. Also, do not forget to remove the thin spring from the hole where the ball is inserted.

The locking mechanism tongue peeks out from the bottom of the case

The larva must be pulled out so as not to lose the details

When installing the core, you need to move the spring for the ball into the hole and insert the part into the body. Then push the larva all the way, while simultaneously inserting the ball into the socket. After that, all that remains is to assemble the locking mechanism and tighten the housing with screws. When finished, check the operation of the ignition switch by turning the key to different positions.

The ejection spring from the old core needs to be moved to the new one

Key position

• The main position is “0” when the system is completely de-energized;
• O will indicate that the system is active and turned on. It is possible to turn on the dimensions, headlights, direction indicators, windshield wipers, the informative instrument panel lights up, the stove heater is activated, the heated filaments of the rear window of the car glow, a lamp on the console shows the status of the units;
• Key on: the car's power unit is started. But to start the engine itself, moving the key to position “II” is not enough. You need to turn it a little further until it stops. Voltage will be supplied to the car starter, which will start the engine. After a successful start, the key will return to position “II”, the starter will turn off, and the internal combustion engine will continue to operate. Sometimes the engine does not start the first time.

Replacing the ignition switch of a VAZ 2110

Replacing the lock with a new one is only necessary if it has already stopped working altogether or if a fairly serious breakdown has occurred; in all other cases, you can get by by replacing the failed parts.

The most common reasons for replacement:

• if the car has been stolen;
• if the key is lost;
• breakdown of the contact group.

Instructions for replacing the ignition switch:

1. To carry out this procedure, you need to use special bolts with tear-off heads; some motorists recommend replacing them with twenty-millimeter M6 bolts, which can be removed more quickly during repeated repairs;
2. To loosen the bolts you will need a chisel; during use you need to be extremely careful not to break the bolt head;
3. Immediately before replacing the ignition switch, you need to insert the key into it and turn it to position “I” so that the latch, which blocks the steering shaft mechanism, is in the lock body.
4. Then you can put the ignition switch on the steering column and secure it with a bracket, also tighten it with bolts for fastening.
5. After removing the key from the keyhole, you need to check whether the steering shaft locking mechanism works. If the shaft lock does not work, you will need to adjust the position of the ignition switch on the steering column until the latch fits into the groove on the steering shaft.
6. When the locking mechanism is working normally, then using a spanner wrench “10” you finally need to tighten the fastening bolts.

Ultimately, I would like to note that repairing the ignition switch of a VAZ 2110 is not very difficult to perform; you just need to try, and everyone will be able to follow a simple algorithm of actions in order to cope with the task.

Stalls when the ignition key is released, VAZ 2115

The ignition switch seems like a fairly simple device, but when it fails, starting your car can be very difficult. But there is good news: the ignition switch and contact group on the VAZ 2110 can be repaired or completely replaced. The main thing is to know some of the nuances of this process. We will talk about them in this article.

• After turning and starting the engine, the ignition key does not return to its original position; it must be turned back manually.
• The lock cylinder was completely worn out and the ignition key began to get stuck in it.
• There was an attempt to steal a car by breaking the ignition switch.
• The ignition key and all its duplicates were lost.
• The ignition switch contact group is faulty.

When the ignition switch breaks, bad contacts in it prevent the engine from starting. However, the reason is not always the castle. Problems can also occur in the contact group (very often the contacts in it oxidize).

To understand that the cause of the problem is in the group, and not in the lock, you should conduct a simple test. It is necessary to remove the negative terminal from the battery, remove the lower casing on the steering column, turn off all contacts there and check them with an ohmmeter, while turning the ignition key to 3 working positions. In all these positions the ohmmeter should show zero. If it shows any value, there is a problem with the contact group, which will have to be changed.

1. The hood of the car is opened and the negative terminal is removed from the battery.
2. The lower part of the cover on the steering column opens.

The photo shows the progress of work with the VAZ 2109 lock, but these locks are structurally similar to the tenth model. The difference is the electrical circuit of the contact group, the replacement of which will be discussed below.

The protective cover has been removed from the bottom of the steering column

Diagnostic measures

Checking the condition of electrical components and mechanisms can be effective only after disassembling the decor that hides the insides. Plastic elements are located around the steering column, capturing parts and components partially located on it.

After opening access to the electrical part, you will need an ohmmeter to test the operation of the unit and the absence of failures when supplying current from the battery. Checks are carried out in different key positions. This is due to the fact that for each position certain contact closures are provided.

It is important to know that the resistance at the contacts of a working system must be zero.

The driver can start the car independently even if the lock is faulty. A similar situation happens on the road, when it is still far from the garage or the nearest car service station. The launch method is described in the presented video.

Motorists need to know exactly the basic steps of all operations. We carry out dismantling work according to the following scheme:

• First, we de-energize the on-board electrical network. To do this, simply disconnect the negative terminal from the battery. At the next stage, you will need to fold down the steering column switches, which poses some difficulties. The lock mounting bolts are structurally protected by car manufacturing engineers to minimize the possibility of theft. To screw them together you will have to use a chisel and a hammer. This is inconvenient in limited cabin space conditions. We turn the heads with a chisel, and carry out further screwing with pliers.
• The removed assembly will show obvious damage or defects. The backlight often burns out. We tilt it away from the connector and remove it from the socket. We insert the new one into the vacated slot.
• When the functionality of a unit is lost due to poor performance of its duties by the contact group, we repair it, for example, soldering contacts or completely replacing the unit. It is necessary to decide what to do based on economic feasibility, because the group is not so expensive that much attention should be paid to it. If you need to replace it, just use a flat-head screwdriver to press the lock to release the part for repair or replacement. Assembly or installation is carried out in the reverse order, using the latch.
• When replacing the key controller switch, you will need a Phillips head screwdriver, with which we unscrew three bolts. Next, remove the axial rod and hold the latch. This will allow you to release the switch and install a new one in its place.
• Installation operations must be carried out sequentially, returning each part to its place. Before starting work, you must insert the key into the well and turn it to the first position. This will unlock the steering wheel rotation and remove the mechanical anti-theft protection. The special pin will come out of its holding position. Only after it is completely hidden in the nest will it be possible to begin work.

After completing the work, we recommend testing for blocking. Only when performing the algorithm is it worth covering the steering wheel axis with plastic decor.

The VAZ 2110 ignition switch cannot be called a reliable part, especially when you compare its service life with the same devices on cars of foreign origin. Therefore, owners of the tenth - twelfth model, who use the car for a long time, sooner or later encounter problems with the lock and its repair. On the other hand, the element can be easily removed from the car and every skilled motorist can replace it. But first you should figure out whether the entire part needs to be replaced, since in most cases it can be repaired.

Board layout and layout

For the entire Lada line, the lock is located on the right side of the steering wheel, sewn into a plastic box, presented in the form of a complete block made of duralumin alloy. On the back side there is a board with contact connectors (8 in total). The contact group of wires has strictly its purpose, the diagram (pinout) is as follows:

1. Key microswitch;
2. Driver's door weight;
3. Circuit for starter to supply “plus”;
4. 12 W. for supply to the starting system;
5. Zero on the key when it is in the keyhole;
6. Illuminated lock slot;
7. Voltage directly from the battery;
8. Reserve socket for connecting other devices at the driver’s discretion.

Device Features

Let's start with some basic things you should be aware of before embarking on a replacement or repair.

1. The ignition switch (IZ) is the main element of the car's starting system. You will not be able to start the engine without it.
2. The lock has a built-in anti-theft system. Therefore, if the protection does not work, the risk of becoming a victim of car thieves increases significantly.
3. The ZZ is capable of blocking the starter from being turned on again, but without initially turning off the ignition.
4. For tens, the key can be removed from the lock when it is in the “zero” position. By taking it out, you will thereby extend a special rod, which is responsible for the anti-theft functions.
5. If the key moves from position zero to “one”, then the locking rod goes away and the ignition contacts close.
6. When the car is started, all electrical equipment receives power and is energized. This applies to the dashboard, headlights, generator, windshield wipers, power windows, heater, turn signals, etc.
7. By turning the key to position “two”, you thereby close another group of contacts, which makes it possible to apply voltage to the starter relay. This will start the engine and you can drive.

Replacing the ignition switch of a VAZ 2110 with your own hands |

Ignition switch faulty ignition switch VAZ 2110 ignition switch

In fact, the ignition switch is nothing more than a breaker that opens or closes the groups of contacts necessary for engine operation; a malfunction of this unit will increase the chances of your car being stolen, and will also create a lot of trouble for you at the most inopportune moment.

The ignition switch of a VAZ 2110 is replaced for the following reasons:

1. After attempting to steal a car by breaking the ignition switch;
2. When a car owner has lost his key;
3. In case of failure of the contact group.

The car may not start due to poor contact, which can be checked quite easily. To do this, just disconnect the negative terminal on the battery and remove the lower casing on the steering column. Then you need to disconnect the contacts and check using an ohmmeter. The contacts being tested must have zero resistance, but if this is not the case, it is necessary to replace the VAZ 2110 ignition switch.

Replacing the VAZ ignition switch - cylinder or contact group

Replacing the VAZ 2110 ignition switch with a new one is only necessary if it is completely out of order or has serious mechanical damage; in other cases, you can try to replace the failed parts of the lock. If you just need to restore the ignition switch, for example, after someone tried to steal the car or in the case when the key began to turn poorly in the keyhole, then most likely you can limit yourself to only a partial repair, that is, replacing the ignition lock cylinder. Replacing failed elements is quite simple, and every motorist with minimal skills can handle it.

From the tool you will need:

1. Hammer;
2. Screwdriver;
3. Chisel;
4. The key is "10".

Replacing the ignition switch on a VAZ 2110 step by step instructions

The first thing that is necessary before changing the ignition switch of a VAZ 2110 is to turn off the power to the car. To do this, disconnect the negative terminal on the battery, then remove the steering column cover. In order to facilitate the procedure for replacing the cylinder, it is necessary to remove the ignition switch, then replace the faulty cylinder with a working one and put the lock back.

If we talk from a financial point of view, we can say that replacing the contact group is the most profitable. The disassembly principle is somewhat similar to the previous one; you will also have to remove the casing and lock. In order to avoid any unpleasant moments, I advise you to mark all the wires being removed when disconnecting the contact group; this will allow you to avoid confusion and save your time. Some cars have a retaining ring in the contact group, which you will need an awl to remove. After replacing the contact group, do not forget to return the retaining ring to its place.

Replacing the ignition switch of a VAZ 2110

To replace the ignition switch of a VAZ 2110 you also won’t need any super abilities, but if you don’t know some of the nuances, you can tinker a lot and get tired.

The ignition switch is replaced as follows:

1. When making a replacement, use special bolts with break-away heads, which some motorists recommend replacing with twenty-millimeter M6 bolts, citing the fact that these are easier to remove if the ignition switch needs to be repaired again. Of course, this is so, but there is another side to the coin: by making it easier to disassemble the ignition switch, you yourself reduce the level of safety and anti-theft protection of your car.2. In order to loosen the bolts, you will need a chisel; when using it, you should be extremely careful so as not to accidentally cut off the head of the bolt;

3. Before replacing the ignition switch of the VAZ 2110, insert the key into it and turn it to position “I”, this is necessary so that the latch locking the steering shaft mechanism enters the lock body.

4. After this, you can install the ignition switch on the steering column, and secure it with a bracket and tighten it with new mounting bolts.

5. After removing the key from the keyhole, be sure to make sure that the steering shaft locking mechanism is working. If the shaft lock does not work, after a full turn of the steering wheel, you will need to adjust the position of the ignition switch on the steering column until the lock latch fits into the groove on the steering shaft.6. Once the adjustment is complete and the locking mechanism is working, using a 10mm spanner, carefully tighten the bolts until their heads come off.

That's all for me, now we can say with confidence that replacing the VAZ 2110 ignition switch is complete!

Checking for a spark

This method is most suitable for testing the module in “field” conditions. However, it requires having at least one new spark plug on hand in your car's inventory:

• One by one, remove the spark plug caps from the cylinder head cover, insert a new spark plug, which we ground to ground or to the body
• We rotate the starter, if there is no spark, then the problem does not lie in the spark plugs, and we should continue to study the ignition system
• Let's try to replace the armor wire on the cap on which there is a lack of spark.
• All wires are numbered on the module cover, so remove the wire from the non-working contact and put it on the working one (let's swap them)
• Thus, we will check the condition of the connecting contacts themselves and the integrity of the core
• If a spark appears after changing a non-working wire to a working one, then the problem was in the wire
• If the problem remains, it means that for the VAZ 2110, repair of the ignition module is inevitable, or replacement if repair is impossible
• If there is a complete absence of spark on all spark plugs, it means failure of the module or its high-voltage coil
• In cars with fuel injection, the electronic system that controls the ignition and fuel distribution may be damaged, signs of such a failure as if the ignition module breaks down
• To repair the module you will need a screwdriver, a soldering iron and spare parts, if you have nowhere to rush, then you can sit at home and calmly disassemble it and re-solder it, after watching a video on this issue
• It is often much faster to replace the ignition module or high-voltage armor wires with similar ones purchased or temporarily removed from a car of the same brand
• Replacement does not take long, the module can be removed easier than a distributor, the cylinder numbers are always marked on it
• This operation allows you to determine general faults of the entire system without unnecessary effort in some cases

That's all, we wish you success in self-repair and troubleshooting.

Replacing the contact group

In the event that, as a result of diagnostics, a malfunction of the contact group is detected, you will still have to remove the ignition switch, since it will not be possible to get to it in any other way. After removing the element, disassemble it using the following algorithm:

1. Disconnect the connectors with the backlight power wires.
2. Remove the decorative plastic cover by releasing the 4 latches. Work carefully because these clips are easy to break off, and buying a cover separately is quite a task. It is not advisable to change the entire lock because of it.
3. By bending the 2 clamps holding the contact group, remove it from the ignition switch.

The plastic cover can be removed using a screwdriver

The contact group is located immediately under the cover

First of all, examine the status of the contacts. If they have darkened (oxidized), then clean the current-carrying surfaces with fine sandpaper P1000. Then put the group in place and, without installing the lock, connect it to the vehicle's on-board electrical system to check its functionality. If unsuccessful, the part must be replaced. The same will have to be done if the contacts are burnt or the group does not work without any external signs of malfunction.

The part is removed after bending two latches

The engine won't start?

If, as a result of the check, it became clear that the spark hits the spark plugs, but the VAZ 2110 injector engine still does not start, then it is also necessary to diagnose it. The faults that cause this problem can be serious or not very serious.

At the same time, it is sometimes possible to cope with their solution without anyone’s help:

• It is necessary to purchase a spark gap and a Hall Sensor, which is inexpensive, but has an irreplaceable purpose. With their help, you can find out about the presence of a spark in the candles;
• Check the spark plugs to see if they are OK. A spark gap can be used for this purpose. However, you need to remember that the controller will be broken if candles are placed on its body;
• Perform fuel pump diagnostics. When you try to start a VAZ 2110 car, a characteristic sound will appear from under the rear seat. If there is no sound, then you need to check the fuses and the main relay. In a VAZ 2110 car they are located behind the side cover of the driver's seat.

If, after diagnostics, problems were identified with one of these elements, then you can fix them yourself. Usually the spark plugs begin to work after proper wiping, although this does not always happen, so they have to be replaced.

Instructions for removing the element

For disassembly you need to prepare a simple set of tools:

• 10 mm head and ratchet drive;
• Phillips screwdriver;
• narrow chisel (width 5-8 mm);
• hammer;
• round nose pliers with tapered, curved ends.

Ignition switch replacement tool

To successfully install a new or repaired lock in place, it is advisable to purchase 4 special fastening bolts with M6 threads with a head size of 10 mm and a length of 20 mm. Their feature is the heads that come off with a key at a certain tightening torque. After tearing off the heads, semicircular caps remain on the surface, which are much more difficult to unscrew for an untrained person. But you will have to do this during disassembly.

The battery must be disconnected before starting work.

Like any event related to tampering with the electrical part of the car, dismantling the ignition switch begins with disconnecting the negative terminal of the battery. Then proceed in this order:

1. Using a Phillips screwdriver, remove the screws holding the two halves of the plastic frame of the steering column together.
2. Lower the handle that fixes the position of the steering wheel during adjustment all the way down and remove the plastic panels. Disconnect the ignition switch block and carefully cut the tape connecting your bundle of wires to the common harness. In order not to cling to the steering column switch during operation, it can also be pulled out of the connector.
3. On the metal casing of the steering column you will see a lock mount consisting of two clamps. They are held together by 4 bolts with the heads torn off (visible on the left side). Pointing the chisel at the semicircular caps, use a hammer to loosen the tightening of these bolts one by one.
4. Using pliers and then your hands, unscrew all 4 bolts and remove the ignition switch.

Unscrewing the plastic steering column cover

Bolts with intact heads can be unscrewed with a wrench

At the stage of disconnecting the connectors, it becomes possible to check the functionality of the contact group by measuring resistance, as described in the previous section. If you remove the lock due to the loss of the keys and want to move on, then after dismantling you need to do the following:

1. On the “mother” block, which remains hanging after the lock is turned off, find contacts with thick wires of purple and blue color (the latter with a black stripe).
2. Connect these terminals with any conductor, after which the ignition will turn on.
3. The thick red wire leads to the starter. To start, its contact must be temporarily connected to the installed jumper. When the engine starts, the red wire must be disconnected.

This is how jumpers are inserted into the block to start the engine without a key.

After unscrewing the fasteners and disconnecting the wires, the lock can be easily removed from the car

Assembly is carried out in the reverse order, but taking into account the following precautions:

• do not tighten the fastening bolts until you have accurately aligned the position of the lock on the casing so that the facing plastic panel fits smoothly into place;
• before final tightening the bolts, make sure that the lock snaps into place when turning the steering wheel, otherwise adjust the position of the lock;
• The tightening torque should be such that the heads of the new bolts come off and the round heads remain.

When installing and tightening the bolts, their heads should come off

If you think that special fasteners are not an obstacle for car thieves, then you can screw in regular bolts with M6 threads and carefully tighten them.

Dismantling the VAZ 2110 lock in the photo

This connector must be disconnected to remove the lock.

The steering column switch is easily removed from its socket

Appearance of the mount. It can be seen that not all the bolts are broken

Bolts without heads are torn out of place with a chisel

After unscrewing, the left mounting clamp is removed

The lock with the right clamp is held on by wires that need to be disconnected

After breaking the bolts with a chisel, they can be easily unscrewed with pliers

Required spare parts

Depending on the type of repair, you may need:

1. switch with assembly (articles: 2110-3704005, 2111-3704005, 2112-3704005, VLT21104-6105006, VLT21104-3704005);
2. contract group (items: 2110-3704005, 2111-3704005, 2112-3704005);
3. bolts with heads that can be torn off, or M6 bolts.

Replacing the ignition switch on a VAZ-2112

Replacing the entire assembly will take at most an hour and a half, and the price of a new ignition switch on a VAZ-2112 is within 1,000 rubles.

Sometimes you can save money and change only the contact group. Then replacing it yourself and purchasing a separate contact group will cost three hundred rubles at most.

Removal

We can talk about the reasons for the lock breakdown and possible malfunctions for a long time, but if the task is to remove the lock, then this can be done in half an hour if you follow a fairly simple algorithm of actions, but first you should listen to simple advice:

Any work with electricity requires disconnecting the battery. The first safety rule is to remove the negative terminal from the battery or turn off the ground switch, if there is one.

Only after this can you start working. And yet, it wouldn’t hurt to organize decent lighting. Working in the area of ​​the steering column is always associated with cramped conditions and lack of light. By spending a few minutes organizing good lighting, we will save a lot of time and nerves during work.

In addition to the standard set of keys and screwdrivers, a hammer and chisel will be useful. It’s better to find two hammers to compensate for the impact force, but for now we remove the lock in this order:

1. To access the ignition switch, it will be necessary to remove the decorative plastic casing, and it is more convenient to do this with the steering column lowered all the way. The adjustment mechanism lever is located directly under the steering wheel.
2. Now you can remove the casing, and for this you need a Phillips screwdriver. We unscrew all the screws and carefully remove the plastic casing.
3. After removing the casing, access to the wiring becomes available. First of all, you need to disconnect the contact block of the ignition switch contact group.
4. To protect against theft, the lock body itself is attached to the steering shaft with a steel clamp. During installation, as a rule, the bolts break off, so it is impossible to unscrew them humanly. This is why we need a hammer and chisel. The lock is fastened not with bolts, but with studs. Most likely this was done for anti-theft purposes. And, if your new lock is equipped with bolts, then do not be alarmed, modern car thieves simply turn the cylinder.
5. Now you will have to hit the bolt heads with a sharp chisel, and you need to strike in a counterclockwise direction. It is better if at this moment an assistant supports the second hammer on the opposite side of the steering shaft. In this way, it will be possible to avoid unnecessary vibrations and unnecessary unnecessary load on the steering column.
6. After several blows with a chisel, the bolts should give way and begin to unscrew. Now they can be picked up with pliers, round nose pliers or a similar tool.
7. Once the bolts are removed, the ignition switch assembly can be removed from the steering column for repair, diagnosis, or complete replacement.

Installing a new ignition switch

Regardless of whether we install a new lock or a repaired old one, we will have to buy four tricky bolts with heads that break off.

Of course, you can install simple bolts, but this way we will make life much easier for the thief if he sets his sights on our car. If we install the correct disposable bolts, then it will not be possible to unscrew the lock just like that, remember how much noise we made while knocking out the bolts.

Otherwise, the process of installing a new ignition switch on VAZ cars of the tenth family is quite simple:

1. We install the lock body with the contact group assembly on the steering shaft and press it with a bar. We tighten the bolts.
2. Use a spanner wrench or a socket wrench to tighten the bolts until they stop.
3. Before breaking off the heads, it is necessary to adjust the position of the steering wheel so that the steering shaft is fixed in the position of the key in the lock against the “I” mark. If this does not happen, the steering wheel rotates freely and the shaft is not blocked, it is necessary to set the lock so that the latch fits into the groove on the shaft.
4. After final fastening to the shaft, the heads should break off. At the very least, this is what needs to be achieved from them.
5. Once again we check the functionality of the locking mechanism, connect the terminal block, connect the negative terminal of the battery and check the functionality of the ignition switch assembly. If everything is in order, you can install the decorative casing.

Dismantling

If previous activities have shown that intervention in the design of the ignition switch is required, work in any case will begin with dismantling the device.

We have special step-by-step instructions for this.

1. To begin, disconnect the negative terminal from the battery of your VAZ 2110. This way you will ensure your safety and the safety of all wiring. You know what the consequences of a short circuit are.
2. Next, remove the casing on the steering column. This is how you gain access to the castle.
3. If you feel that the rotary switches will interfere with your work, it is better to remove them immediately. The work does not last for a couple of minutes, so all irritants should be put aside.
4. Armed with a chisel and hammer, unscrew the mounting bolts with round heads. Don't get confused, they are the only ones there. Try to perform this operation as carefully as possible so as not to knock off the bolt head.
5. Now take the pliers and remove the bolts.
6. Insert the key into the ignition and turn it to position zero. This will disable the anti-theft system.
7. Next in line is the bracket that held the previously removed bolts and the ignition switch itself.
8. Mark the contact wires using different colored markers. Otherwise, you can easily mix them up during reassembly.
9. Often it is not necessary to completely replace the lock, but only partial repairs. For example, change the backlight bulb, or fix a microswitch problem.
10. Disconnect the connectors that used to operate the ignition switch.
11. To replace the backlight bulb, disconnect the corresponding connectors, and then use pliers to remove the bulb.
12. To replace the contacts, use a screwdriver to press out the special latches.
13. Using a shaped screwdriver, unscrew three screws, after which you can remove the rod.
14. Use a regular flathead screwdriver to pry out the clips and remove the microswitch.
15. Next, new ones are inserted in place of the dismantled elements.

Checking status

Installation

Now that all preliminary repair work has been carried out, there are two options:

• Install a completely new ignition switch with wires and contacts, since the old one is unsuitable for further use;
• Return the old lock to its place, since the repairs have borne fruit.

Before installation, be sure to purchase special bolts equipped with break-away heads. They are designed to prevent your vehicle from being stolen.

Regardless of the option, the lock installation sequence is identical.

• Insert the key into the ignition, then turn it to position one.
• Secure the bracket to the steering column, and then replace the mounting bolts.
• Remove the key from the lock and check that the shaft lock works properly. If it's a new lock, there shouldn't be any problems. If we are talking about a refurbished old one, troubles may arise, since in reality it is better not to skimp and immediately replace the spare parts with a device of good quality.
• If everything works as it should, then you can complete the installation of the lock by tightening special bolts that are equipped with tear-off heads.

Buy only high-quality locks from trusted suppliers. Today there is an impressive number of fakes on the market, which use materials and components of dubious quality. Because of them, you can be seriously injured and even lose your car.

At the moment, the cost of a new ignition switch is about 20-25 dollars. These are small expenses, but sometimes simply necessary. Whether to do the repairs yourself or trust the car to a service station is a personal choice for everyone.

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About the ignition switch on the VAZ-2110

This lock has been changed twice already. Auto editions.

The ignition switch is not the most complex unit and consists of a housing, a lock cylinder, a locking device and a contact group.

Any of the structural elements may fail for one reason or another, either from improper operation or due to poor workmanship

Articles

By the way, the most reliable locks are those made in Togliatti with catalog number 21100-3704005-30 (set)

The price of the complete lock with lighting is about 1,100 rubles, which, you see, is not that much, given the importance of the unit. The assembled Dimitrovgrad lock with the same article number DAAZ 2110-3704005-30 will cost a little less. They are asking 800-900 rubles for it.

Lock diagram

The anti-theft properties of a ten-key lock are far from perfect, so the car uses an immobilizer that prevents the engine from starting with a key other than the original one.

There is also an option to bypass the immobilizer lock to install an abnormal alarm. The connection diagram for the ignition switch is practically no different from all VAZ locks. Here she is.

A harness of eight wires comes out of the ignition switch housing, each of which corresponds to its own terminal. This is necessary to know in order to diagnose the contact group and not waste extra time and money on troubleshooting.

1. Microswitch terminal that opens power to the circuit when the key is inserted.
2. Negative contact of the lock light bulb.
3. An important terminal for supplying power to the starter contacts. This contact only closes when the key is turned to the engine start position.
4. Supply of general 12 volts to the contacts.
5. Microswitch power supply.
6. Power (plus) backlight.
7. An important contact responsible for supplying 12 Volts from the battery.
8. The terminal is usually empty and is intended for connecting additional equipment.

The electrical circuits of the ignition switch can be checked with a multimeter, measuring the resistance between the contacts when switching modes.

Typical breakdowns

Typical ignition switch failures are well known to experienced drivers - failure of the contact group and failure of the return device.

If the ignition key stops returning to its original position, the lock's return spring is most likely broken.

The last trouble is quite serious, since after starting the engine the key must return to the second position. If it does not return, power continues to be supplied to the starter while the engine is running.

• At best, this may result in the Bendix contacts burning out and breaking.
• If you're less lucky, you'll have to replace the starter completely.

This is why it is so important to identify the fault in time and replace the lock, preferably as an assembly.

Common mistakes during diagnostics

Most people, due to ignorance of the VAZ 2110 injector machine, make many mistakes in the process of identifying problems.

Let's look at some of them:

1. Many people make a common mistake: when they see that there is no spark, they want to check it for breaks. For this purpose, they place the wire close to the ground of the machine. But when performing such actions, the ignition module may break, so under no circumstances should you do this;
2. Another problem is checking the spark discharge. If you place spark plugs on the engine body, a large induction current may appear. This occurs even due to slight contact of the spark plug with the ground, as a result of which the controller can also be damaged. Therefore, it is necessary to use a spark gap that will not allow the distribution of ignition with the same supply of high voltage to two spark plugs at once.

Reasons for replacement

It is necessary to replace the entire lock or just the contact group, depending on the nature of the breakdown and the situation with your car. Therefore, we will consider options when replacement may still be required.

When checking the contact group, be sure to disconnect the negative terminal from the battery, otherwise a short circuit will occur, and not only the contactor will have to be replaced.

Pinout in photo

Circuit and pinout

First of all, get acquainted with the lock diagram and wire connection diagram, which will allow you to better understand the features of the 3Z pinout.

As you can see, the pinout includes 8 elements. What does each of them mean and what functions are they responsible for? We'll figure out.

1. Power supply for the inserted key sensor microswitch (+12Volt).
2. Power supply to ground when doors are opened on the driver's side.
3. Power supply that supplies current to the starter (+12Volt, pin 50 on the diagram).
4. Source at +12Volt. Activated after turning on the ignition. Power supply for additional equipment, such as video recorders, clocks, etc. (pin 15 in the diagram).
5. Source at +12 Volts. Triggers when the key is inserted. Goes to pin 5.
6. Power supply +12Volt. The illumination of the 3Z larva is activated.
7. +12V source from the battery (pin 30 in the diagram).
8. Not active.

Wiring

Troubleshooting

Before tackling the question of how to change the ignition switch on a VAZ 2110, you need to find out the nature of the malfunctions. How to check the ignition switch of a VAZ 2110 is described in the instructions.

1-reserve; 2-minus backlight; 3-starter; 4-plus after the ignition switch; 5-reserve; 6-plus backlight; 7-constant plus; 8 is a constant plus.

Troubleshooting the ignition switch on a VAZ 2110 is carried out in the following steps:

1. The battery will be disconnected.
2. The casing is removed from the steering wheel shaft column. To do this, unscrew several screws.
3. The lock connector is removed from the back.
4. Using a multimeter, the voltages in the contact groups are checked. The installed key switches in different positions.
5. Voltage on pins 8 and 30 is present only when the key is in zero position.
6. In position 1, the servicing devices are turned on: turns, headlights and heated glass.
7. In position 2, voltage is supplied to devices related to engine operation.
8. In position 3, the starter is activated. The key then returns to its original position.

If there are interruptions during the verification process, then the ignition switch on the VAZ 2110 requires disassembly and repair.

The result of the work done

From all of the above, we can conclude that all these operations are quite simple and, with a minimum amount of tools, anyone who knows how to use a screwdriver and wrenches can do this. And if you do everything yourself, you can save time and money on a trip to the service center.

Our VAZ-2112 is unlikely to have any value if it is impossible to move it. Moreover, for such a banal reason as a malfunction of the ignition switch. An essentially trivial breakdown can lead to loss of time, and sometimes even to the loss of the car itself if the ignition switch is faulty.

Professional advice

Such advice is as follows:

1. Even having an understanding of the rules for replacing larvae and contact groups, it is better to refrain from this work. The repair process is complex and time-consuming. If you have an idea of ​​how to change the ignition switch on a VAZ 2110, then it is better to replace the entire assembly.
2. Graphite grease is used as a lubricant for the cylinder. It reduces the risk of biting the part.
3. Even knowing how to change the ignition switch on a VAZ 2110, as well as how to change the door lock on a VAZ 2110, in the process of work you should give preference to branded products.

The procedure for replacing the ignition switch on a VAZ 2110 is a simple type of repair work. Even a beginner will not experience big problems. The main thing is to have the necessary equipment and tools on hand, and also to read the instructions well.

“Classics”, as well as the “Ninth” family

Fiat engineers, when developing the ignition switch for their 124 model, used two supply lines (“30” and “30/1”). The ignition line was the only one.

Another ignition circuit containing contact “15/2” was added during the transition to the “2109” family. It, in turn, is switched using a relay. In different families, only the diagram differs, but not the “behavior” of the car when the key is installed opposite the marks:

1. Position 0: everything is off;
2. Label 1: ignition and engine operation;
3. Mark 2: starting the starter;
4. Label 3: “Parking” mode.

To turn off the engine, turn the key to position “0”. The spark plugs lose spark and the engine stops.

The ignition switch module, if we talk about the “classic family”, is equipped with 5 terminals (see Fig. 2). Starting from the “2109” family, this solution is not used. Several wires come out of the lock cylinder and are connected to a remote connector.

The connector layout can be easily identified using the color coding (see diagram above). When carrying out any installation work, remember the following: you must turn off the engine, open the hood and disconnect one of the battery terminals. Usually the negative one is turned off.