The system, which everyone calls central locking, is not installed on all VAZ-2110 passenger cars, but only on some of them. The purpose of this system is to simultaneously lock the locks of four doors when the driver closes the left front door of his “ten” using the lock key. A similar picture occurs when you press the driver's door lock button from the passenger compartment.
There are several problems associated with the operation of the central locking on the “tens”. Firstly, the driver should know that under no circumstances should a long or frequent pulse be given to control the opening or closing of doors, as this can lead to failure of the activators that activate the lock. They are located in each door of the VAZ-2110 car. With a long pulse, the activator motor commutator heats up so much that the plastic brush holder melts and jams. In this case, the activator will need to be replaced.
Second problem connected to a fuse that protects the electrical circuit of the central locking, because if it fails, troubleshooting usually begins by checking the integrity of this fuse. It is located in an inconvenient place, behind the fuse box in the car interior. There it is very difficult to find it among the wiring harnesses, and it is tied to them with the help of electrical tape. It stands in a break in the pink wire and is enclosed in a plastic cup.
Another problem The reason why the central locking refuses to work is the plug connector, which is located under the carpet at the location of the driver’s feet. Over time, moisture accumulates there and oxidation of the contacts occurs, which is why the power to the activator is lost.
It is also possible failure of the module control unit central locking, in which, using two relays, voltage is supplied to the activators to open or close the door locks. You can check its serviceability by applying voltage from the battery to the contacts of the module connector (white, eight contacts), which are connected to the red or yellow wire. If the locks work, the module is faulty.
Car owners often encounter incorrect operation of the central locking system. This is especially true for systems installed abnormally. Often the central lock does not close one door, and sometimes all four. Of course, this is not fatal, but quite an unpleasant problem. There are many reasons for such malfunctions. We will list them in our article today.
How does it work?
The design and operating principle of the central locking system in most cars is almost the same. Only the locations of the actuators and the connection diagram differ. However, the principle of operation is completely identical.
When a signal is received from the key fob to the control unit, it issues a command - the corresponding relays are closed and the activator motors are activated. As a result, the door lock cylinders turn. They open up. On some cars it is possible to open the trunk using the key fob. But there is a separate button for this.
There are several simple reasons why the central locking does not close the doors. There aren't many of them. These breakdowns are easy to fix with your own hands.
Circuit breakers
In this case, the lock will not only not close, but will also stop opening the doors. It's worth taking a look at what's going on in the fuse box. The fact is that the central locking system itself is quite dynamic. A variety of short circuits in its wiring are by no means uncommon.
If this is a standard lock, then you should look for its fuse in the factory block. If an alarm system is installed (and often it is this that controls the operation of the central locking), then you should look for the fuse on the positive power wire of the unit.
The malfunction of at least one of these objects explains the problem with the central locking. The way out of the situation is simple. Needs to be replaced with a new one. Sometimes you have to struggle with removal - the element sits tightly in the connector.
Dead battery
This reason refers to the situation when the central locking does not lock the doors or open them. Everyone has encountered a situation where, in the morning, when you press a button on a key fob, nothing happens.
Sometimes drivers forget to turn off electrical appliances in the car, which leads to deep battery discharge. It’s easy to verify this; just open the car with the key and turn the ignition key. It will not turn on at all, or it will be impossible to start the engine. To solve this, you just need to charge the battery. The system will work again.
Wiring
As practice shows, due to the lack of contact, you can often observe a situation where the central lock does not close the doors using the key fob. The system seems to be working, but when I press the button nothing happens.
It's all because of the wiring. It is necessary to carefully check all connections that are related to the alarm system, as well as to the central locking. Even if the contact moves away just a little, this can already cause malfunctions. Don't forget that one of the connections is inside the door - you'll have to remove the trim. First you should check the condition of the wire that goes to the motor - it can “stick” to ground.
There are a lot of questions and discussions related to the operation of the central lock on numerous forums. Sometimes the central locking only closes the driver's door - this is a typical malfunction, the cause of which lies in the wiring and contacts. The fact is that a special activator is installed in the driver's door. It has not two, but five contacts. The activator controls the operation of all locks in the remaining doors. The microswitch inside the activator may also fail.
If the wiring is connected incorrectly, then this is the answer to the question about the poor operation of the central locking. It is enough to open one control contact, and the system will not work as it should.
Electronics failures
If the central lock does not close one door, then simple reasons may not be immediately considered. The electronic unit is to blame here. It is better to start diagnostics with the key fob. The first step is to make sure that the battery is in good condition and the buttons do not stick.
Then they check the alarm and central locking control unit. Typically, in the instructions for the alarm, the manufacturer indicates what needs to be pressed to enter the diagnostic mode. The last thing to diagnose is the board located on the lock motor. Here you can also check the drive itself.
Defective parts must be replaced. The whole difficulty lies in the control unit - it is quite difficult to repair it. All that remains is to replace it. Often key fobs can lose connection with the unit - then reprogramming will help.
Mechanics
In addition to reasons related to electronics, the central lock does not close one door due to mechanical faults. If the lock is standard, then it is more difficult to diagnose. But if simple activators are installed, everything is much simpler. In cases where only one door does not close, it is worth checking the drive rod.
Standard locks, especially on foreign cars, are a single unit with mechanical and electrical parts. Often on old machines, plastic drive elements - gears and shafts - wear out over time. As a result, the motor rotates, but the central lock does not close one door. The force required to open a door is always less than to close it.
The lock rod is fixed to the cylinder lever - it can fall out of its place. Then the lock will not work. The driver will hear the motor running, but the desired action will not occur.
In the case of Chinese activators, the mount may slip along the rod, which controls the opening or closing of the lock. When the latter closes, the activator pulls the lever down, but slips. As a result, the door does not close. You need to disassemble the casing and tighten the fastening bolts.
Corrosion
Corrosion also occurs with locks. You can see it especially often in the spring. In winter, another problem arises - the castle freezes. But in this case, the mechanism will not be able to open. Also, due to damage to some parts, the lock will not work correctly.
Pneumatic central locking
Along with electric locks, there are also their pneumatic counterparts. Here the malfunctions and their causes are almost the same. If the doors do not close at all, then the compressor or control board is to blame.
If a separate door does not work, then check the circuit board directly on the door lock. Often there is a lack of tightness in the vacuum line, broken contacts in the wiring, and also a breakdown of the control unit.
Lock repair
We figured out why the central locking does not close the door. Statistics show that half of the problems are related to wiring and electronics, and the second are related to mechanics.
As for repairs, domestic locks are very afraid of temperature changes and high humidity. The activators first jam, and then completely refuse to open/close the locks. Typically, such drives can be found on domestic cars. It is better to replace such activators with separate drives. But you can also disassemble, thoroughly clean and lubricate.
It is better to start any repair by checking the presence of voltage. It should usually go to 1 of the wires when closing is activated. When opening, the voltage on the wire disappears. And on the other - it appears.
Then, during the testing process, the activator itself or the circuit before it is diagnosed separately. This includes the control unit and wiring. If the central lock does not close the doors of the 2114 VAZ, the reason may be a broken wire on the corrugated cover between the door and the car body.
The central locking VAZ 2114 (hereinafter referred to as CZ) is a mechanism that ensures the simultaneous closing or opening of all four doors in the car. This option is very convenient; it eliminates the need to reach out and lock the doors manually every time. Such centralized control comes in handy when installing car alarm systems, which significantly expands the possibilities and variations of the use of the locking mechanism.
The operation of the lock itself does not depend on whether the car engine is running or the fact that the ignition is turned on. Power is supplied directly from the battery.
It is quite common for the system to malfunction. For example, when the locks of some doors close, but the rest do not. Or the closing process occurs with great difficulty, jamming, or partial failure of the latches. A situation familiar to many car enthusiasts, isn’t it? There are several reasons for the node to not work correctly; we will look at them in more detail.
7 common faults
Why does the central locking of the VAZ 2114 not work, you ask?
Most often, interruptions occur due to temperature changes and humid weather. The first signs are unclear operation of the lock, jamming or incomplete operation.
Below we list the top major breakdowns:
Central locking diagram for VAZ 2114
The system consists of the following components:
- mounting block;
- 8 amp fuse;
- 4 gearmotors (one in each door, and the one in the driver's door has a contact group);
- central locking control unit;
- wires (red, black, blue, yellow) and plugs;
- rods that are located in each door;
- limit switches that signal the current state of the door (open or closed).
Where is the central locking of the VAZ 2114
The central locking system is located in the driver's door, just like the electric drive. If we talk about the system as a whole, it is distributed over 4 doors (in some cases it also extends to the trunk), and the central panel (control unit).
Testing and diagnostics
If your car is equipped with one of the alarm systems, then it is better to start diagnostic activities with it.
You should check the operation of the central locking when using the key fob, and when opening and locking with a key. If, during a manual check, the central locking system works correctly, then the reason is the alarm.
Additionally, it would be a good idea to check the battery charge level, since if it is insufficient, interruptions in the operation of many electrical consumers occur.
In general, it is best to check, as they say, along the path of least resistance. That is, diagnose something that does not require significant effort. And if the fault cannot be identified, resort to disassembling the driver's door and examining the mechanisms along with the electronics.
conclusions
In this article, we touched upon only some of the most common problems associated with the operation, repair and maintenance of a centralized lock. Despite the fact that the node has plenty of problems, restoring its functionality is not a difficult, much less an impossible task. Usually, to achieve smooth, efficient operation of the system, only practical skills are missing. After receiving them, you will be able to repair any complexity! If you want to install the central locking on a VAZ 2114 yourself, then here is a video instruction:
For how many years now, motorists all over the world have been complaining about the malfunction of the central locking system and often ask the question: “Why is this happening, and what are the reasons for this?” The answer to this question can be obtained from a detailed examination of the very principle of operation of the central lock and its capabilities.
It is known that almost all modern cars have a special automated system that allows you to open and close the car door with just the press of a button. This is the central lock, and as it turns out, some problems may arise due to its autonomy. This dilemma has not spared the domestic VAZ 2114, which for many has long become indispensable.
Operating principle of central locking
First, let's figure out what is the operating principle of the central locking on a VAZ 2114? The operation of the central lock involves transmitting signal control to a certain point, followed by activation of the relay. As a result of this, when you press the button on the key fob, the car door will be closed, or vice versa - open. A fairly simple explanation.
However, this is enough to highlight the first central locking problem that everyone is dealing with. This, as you might guess, is a technical question. In other words, the internal state of the device. 
As we already know, central locking is controlled on the principle of transmitting a control signal from point A to point B. This is where the rub lies, which can be explained for a number of reasons.
- incorrect installation of the device or incorrect settings;
- climate impact.
Troubleshooting options
The problems seem quite serious. But don’t rush to get upset. Knowing these reasons, you can ask yourself the question: “Why does the central locking on the VAZ 2114 not work? What is the problem?"
First, you need to conduct an independent diagnosis, which will allow you to determine further action. If the car makes the sound of the doors closing, but nothing happens, then you should unscrew the door locks and then lock the car. If the doors close only once, you should buy new ones with the appropriate diameter to repair them.
An excellent tip would be to check the internal condition of the central locking system. Often, the cause of the problem may be dry coating of the wires. In this case, it is worth lubricating with machine lubricant and securing the materials in the right places.
The remote control may be low on power. In this case, it is worth replacing the battery or, if necessary, the remote control itself. 
Another type of problem has a slightly different nature - inoperability, which is to blame for the climate. Instability in the operation of the lock, perhaps due to low temperatures, which lead to freezing of the signal system. Or, what happens more often, water gets into the central locking of the VAZ 2114. This problem can be easily solved by drying certain places of the central locking system.
Helpful Hint: One of the most common central locking problems is dead batteries. Experts recommend changing them 2 times a year. The reason for replacement may be incorrect operation from a distance of 4-5 meters.
Other system failure options
The above problems are the main causes of damage. However, there is a more complex mechanism, the defect of which cannot be ignored. 
It happens that with the manual activation method the central lock is not operational. In this particular case, most likely the VAZ 2114 central locking fuse is not working. Its condition depends on the ambient temperature. Due to hypothermia, malfunction occurs and it fails, as a result of which nothing happens. The central locking system does not respond to signal impulses. Another reason is high temperature, which causes a short circuit.
Fact: Often, central locking works intermittently in certain places. This is usually caused by electromagnetic interference.
Why did the VAZ 2114 central locking unit burn out and what to do?
The solution to this problem is based on the use of a special device - a multimeter. Using it, you can check the voltages of those contacts that are responsible for activating the remaining doors. What to do if the central locking control unit on a VAZ 2114 does not work and does not show any signs of life? In this case, you need to make sure that it can be restored by first diagnosing its condition and, if necessary, restore it or buy a new one.
Central locking (CL) is a very convenient thing that allows you to lock or unlock all the car doors at once with a slight movement of your hand. However, sometimes this system does not work correctly or does not respond at all to turning a key or pressing a button. What could be the reasons for a central locking malfunction?
Often the central locking, especially on domestic cars VAZ-2110, VAZ-2114, VAZ-2115 and their derivatives, begins to act up. It manifests itself like this: when you close the driver's door with the key, the other doors do not respond. If you move the key a little, the central locking works. Why is this happening?
Contacts in the main drive do not close
The central locking, powered by the driver's door lock, functions as follows: an electric drive is installed in the specified door, which not only controls its lock, but also sends signals to the central locking unit. The block distributes corresponding signals to drives installed in other doors.
The control actuator in the driver's door has five wiresFor these purposes, an actuator is installed in the driver's door not with two, as usual, wires, but with five. Via additional wires, the drive “communicates” with the central locking unit. When the lock is locked, the driver's door control rod lowers and closes certain contacts inside its housing. The central locking unit receives voltage and gives a command to the lock drives of other doors to close. The same thing happens when opening, only the voltage flows through other wires and through other contacts, making it clear to the central locking unit that it needs to send a command to unlock the door locks.
In this case, the contacts inside the control drive may not always close at the right time. For example, this may occur due to improper adjustment of the linkage that connects the lock button on the door and the electric drive itself. That is, the button may already rest against the casing, preventing the rod from lowering further, but the contacts in the drive have not yet closed. Accordingly, it seems that the lock is locked (it may actually be locked on the driver’s door), but the other doors will not lock, since the rod needs to be lowered another couple of millimeters.
The same phenomenon occasionally occurs on the VAZ-2110, when the button gets pinched against the door trim and also prevents the rod from descending to the required depth. The most important “trick” is that this lowering may be enough for the mechanical lock to lock and it seems that the door is locked, and accordingly thoughts come about a malfunction of the entire central locking system. This is wrong.
When the central locking behaves this way, first of all you should make sure that the button is lowered all the way. To do this, with the door open, click the lock latch two clicks, simulating a closed door, turn the key and try to lower the button with your hand. If the central locking works, then you need to release the lock button from its tight contact with the door trim or adjust the linkage from it to the control drive.
Central locking fuse blown
Broken central locking wires
Another reason why the central lock may not work completely or partially is a broken wire. Moreover, the wires break, as a rule, in those places where they are subject to bending loads - the entrance from the body pillar to the door. The driver's door is the most frequently opened door in any car, and the control drive is located there. This means that it is enough to break at least one wire that enters it from the rack and relates to the central lock, and the entire locking system may begin to work incorrectly.
Schematic diagram of the electrical system of the central locking system It is quite easy to determine this malfunction. You need to carefully remove one of the ends of the rubber corrugation along which the wires enter the door, and pull the necessary wires towards you. Which wires are responsible for the central locking can be found out from the car's electrical diagram. If this information is not available, you can pull all the wires separately.
The point of such a check is that the broken wire will be pulled out of the common bundle. Here you can also pull out the other end to connect them and thus repair the central lock. You can connect the wires by twisting, or you can use. Naturally, any such connection will be needed.
Wires can be broken in other places, but this is rare. If this does happen, you need to use a multimeter to call the entire electrical network of the central locking system and find a break. This requires some knowledge of automotive electrical engineering and the ability to use a multimeter.
Central locking unit burned out
Another reason why the central locking may not work is the combustion of the central locking unit. To diagnose it, you also need to use a multimeter and determine the presence of voltage on the contacts to which the drives of other doors are connected. The control drive in the driver's door must at this time supply current to the corresponding contacts of the unit (the lock must be unlocked or locked with a key).
The central locking activator is faulty
And finally, the reason for the central locking failure may be in the control drive itself (they are also called activators), or more precisely, in its contact group. The contacts may oxidize or break off, and then the drive will not be able to send the appropriate signal to the unit - the other doors will not respond to turning the key in the driver's door lock.
In this case, you will need to replace the electric drive with a working one. Find out what drive is in your car and buy a similar one. If the drive is a regular common activator, then buy the same one. The most important thing is that it has five wires, because activators with two wires are responsible only for locking and unlocking the lock and do not send signals to the central locking unit.
