You begin to appreciate many things after they are gone. The same applies to the additional options of the VAZ 2110. Central locking (CL), for example, you can not notice as long as it works properly or you can do without it altogether. But you quickly get used to good things, don’t you? Therefore, when something that provides us with a comfortable ride fails, you immediately begin to rush around in search of answers “how to fix it.”
Central locking device VAZ 2110
VAZ cars are not least good for their high maintainability. Whenever something happens to your iron horse, you can almost certainly solve the problem yourself without the help of specialists at a service station. “Ten” was no exception in this regard.
As for the central locking system specifically on Lada 110 cars, this is really a rich topic for discussion. Ignorance of elementary circuits and the operating principle of the unit can confuse many motorists. However, servicing the mechanism is quite simple. And given the enviable frequency of its failure, it turns out that knowing “how” is simply vital.
What is the central locking on the VAZ 2110?
The purpose of this type of device is to centrally control the automatic mechanism for opening and closing all doors in the car at once. This is especially convenient for working in conjunction with an alarm system and when operating a car in general. However, the reliability of the operation of the central locking system should definitely be checked every time by moving the handles of all four doors before going about your business for a long time, since the actuator can often fail and one of the doors may remain unlocked.
Structurally, the VAZ 2110 central lock consists of the following elements:
- electronic transistor control unit;
- gearmotor actuators, also known as activators (one for each door);
- a limit switch that determines the current state of the door (open or closed);
- electrical wiring and other installation elements.
Central locking diagram for VAZ 2110
Additional option – is it worth ordering?
The presence of a central lock in a VAZ car is considered an additional option, and only if we talk about cars manufactured after 2000. However, in VAZ 2109 models deprived of this advantage, it is not difficult to install it.
The main purpose of the VAZ 2109 central lock is to automatically open and close all car doors simultaneously. The central locking can be controlled using an alarm remote control that interacts with the system, as well as using a key. The central locking mechanism consists of several sensors located in the door envelopes and automatic switches. This entire system is interconnected and looped into the vehicle’s power supply.
Why the central locking on the VAZ 2110 does not work correctly
The problem of improper operation of the actuator is not at all uncommon for cars in the domestic automobile industry. Despite the fact that there are a number of reasons for the failure of mechanism parts, the principle of operation of the automatic door closing system is quite simple, and the malfunctions are very typical in their entirety. This means that any motorist can deal with them.
You don’t have to grab your head and run to the workshop in search of a qualified specialist. Thanks to the diagnostic recommendations below, you yourself are very likely to become one. If, for some reason, you don’t want to get your hands dirty, at least no one else will dare to mess with you. And this, you see, also costs a lot.
Problems in the operation of the activator electric drive
The central locking actuator is quite fragile and does not tolerate overload. The activator body, made of plastic, can easily melt if the frequency of door closing is excessively high. The duration of the control pulse also plays an equally important role. Try to always remember about the extreme fragility of the activator and not to load it during operation.
It is easy to guess that the activator is located in each individual door of the car. If the body of one of them melts due to overheating of the electric drive commutator, this becomes the cause of many problems:
- the activator on individual doors stops functioning;
- Constant overloads in a jammed electric drive cause the fuse to fail.
The actuator mechanism is entirely made of plastic. Gears can easily wear out and break during operation, or melt when the commutator overheats. As a result, when the central locking operates, characteristic creaking sounds are heard - a sure sign of imminent failure of the activators. Likewise, if the gearbox of the mechanism is humming, but the doors do not open or close.
Malfunctions of this kind can also be associated with all sorts of defects in the gearmotor and its traction. If you have recently replaced your central locking system, the reason may be that it was installed incorrectly. The mechanism may also be incorrectly adjusted or the fastening may be damaged. In any case, the door trim should be removed and checked visually.
Problem in the operation of the central locking electrical circuit on VAZ cars
The first possible problem follows smoothly from those mentioned in the previous section. Overload in the operation of activators leads to an increase in the operating current in the supply circuit above the rated value. As a result, the fuse blows and the central locking of the VAZ 2110 simply “dies”.
It is by checking the fuse that the diagnosis of central locking malfunctions begins. By the way, it is located in a very specific place and it is not easy to find it right away even if you know where to look. In order to get to it, you will need to fold back the central panel with the fuses and dig into the entire wiring harness in the niche that opens behind it. The “comrade” you need is packaged in a special plastic cup and connected to the pink wire.
Central locking unit VAZ 2110
Another very common and obvious problem is the central locking connector. It is located in the most unfavorable place for this in the interior body, under the foot mat. A large amount of moisture and dirt inevitably gets there. Electrical contacts are intensively oxidized. As a result, the power supply circuit involuntarily breaks at the point where the plug connector is connected.
Problem with the operation of the VAZ-2110 central locking control unit
Electronics, of course, are reliable things. Modern control modules for the central locking VAZ 2110 are assembled using a transistor control circuit. This eliminates their mechanical wear. The shelf life of key components is measured in tens of years. The control unit is located under the plastic dashboard cover on the right side of the driver's seat.
However, power transistors can easily fail when the activators are overloaded and the collector is short-circuited. It may even happen that the signal from the control unit will constantly be sent to the lock drive if the transistor is broken. Otherwise, it will simply not turn on.
Checking the control unit is extremely simple. The voltage from the negative terminal of the battery, or directly from the pink wire supplying the control unit, is supplied to the contacts of the gearmotor (activator) in series to the red and yellow conductors. All of the above contacts can be found directly on the eight-pin connector of the control unit.
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Also, the control unit may issue erroneous control commands due to incorrect operation of the limit sensor. Being a mechanical device, the main door switch can simply wear out. As a result, the control unit simply will not be able to function correctly, since it will not know in what position the car doors are currently located, whether the driver's door lock is closed or open.
Video - Causes of VAZ central locking malfunction
Like any equipment, the central lock can fail. Most often, drivers themselves have a detrimental effect on the central locking of the car. An example of this would be long pressing a remote control button. After all, when the locking or unlocking circuit is closed, the electric motor is activated, the collector of which heats up greatly and disables the entire activator drive. The door, however, does not respond in any way to pressing the remote control buttons. This malfunction can be eliminated by replacing the activator with a new one.
If the entire lock suddenly loses power, then troubleshooting begins with the fuse. Its location can vary from the fuse box to the floor of the car. In the case of the floor, if it is located under the rug, then the cause of its burnout may be moisture that accumulates during the operation of the car in winter, spring and when using linoleum as floor covering. In this case, the cause of the malfunction is eliminated and the fuse should be replaced.
In addition to electrical faults, there are also mechanical problems with the central locking system. These include breakdowns of the gears of the entire modular locking drive unit and wear of the solenoid. The modular unit must be completely replaced, but you can get by by simply replacing the gear. The solenoid, in turn, also needs to be replaced, since its resource is usually enough for 10 thousand closing and opening operations.
Breakdowns of mechanical parts can also occur due to lack of lubrication in moving parts. Therefore, it is recommended to periodically check the condition of metal parts and the presence of lubricant on them.
Before starting installation, you must remove the battery terminal, dismantle the door trim and select a location for installation. It is worth considering that the mechanism for moving glass has its own characteristics. Therefore, before installing the lock in the chosen location, make sure that both mechanisms will not interfere with each other. Typically, the factory provides special places for attaching such locks, and in exceptional cases, also electrical components that are already fixed in place. Fastening of additionally purchased elements is carried out using self-tapping screws and bolts with nuts.
The wiring must be pulled to the on-board computer control unit. You can find it right under the stove shaft in the car's interior. Since there are certain standards for connecting central locks, it will not be difficult for you to connect all the wiring correctly. In addition, such elements are usually accompanied by electrical diagrams. It is recommended to route the wiring of the rear door locks along the thresholds of the car.
After connecting all the elements, you need to check the locking process. Close all doors and remain inside the vehicle. Press the lock button on the remote and make sure all doors are locked. Try lowering your vehicle windows. If the windows go down without any problems, and this does not in any way affect the performance of the central locking, then this means that the lock is installed correctly. Lastly, check whether the lock drive rods do not interfere with opening the door using standard handles.
If all elements work correctly, then the lock installation was successful. All metal parts of the central locking system must be lubricated, and only after this is it possible to install door trim cards.
This is, perhaps, all you need to know about installing the VAZ 2110 central lock. However, do not forget that you can install the lock not only on your own, but also contact any car service station for help, where they will handle this work without labor and will do it efficiently.
Cars produced in the 21st century are very technologically advanced and safety-conscious. They include many devices for the protection and comfort of the car owner. The domestic auto industry is trying to keep up to the best of its ability - this is how a central lock appeared in the VAZ 2109 and 2110.
How well do central locking and alarm systems work together in VAZ-2110 cars?
As you know, a modern alarm system involves autonomous control of all opening parts of the car. For this reason, it is possible to connect the VAZ 2110 central locking system to the alarm system. The connection diagram for the signaling device is included in the operating instructions for the device. The central locking control circuit also seems to have an additional unused connector for this purpose.
However, in reality it is not so simple. Control signals from the alarm system to the central locking system will conflict with the information received from the limit switch installed in the driver's door. For this reason, the standard central locking control circuit with which VAZ 2110 cars are supplied from the factory should be slightly altered.
The essence of the modification is extremely simple. According to the circuit diagram, the limit switch is connected to the eight-pin connector of the central locking control unit via two wires: brown and white. These wires from the unit should be disconnected.
Now the limit switch will be connected to the alarm control circuit, and the alarm will set control signals to the electronic unit of the central locking. Perhaps the diagram described “on fingers” may seem somewhat incomprehensible to you. But it will be very easy to understand the above by studying the diagram proposed below.
Central lock VAZ 2110
To better understand the idea of connecting an alarm, it is still worth studying the instructions included with it. Thanks to this, you will have a clear idea of how to implement this idea in practice. But the essence of the connection will remain the same. The work requires minimal effort and is generally very simple.
Scheme and principle of operation of the central lock
The central locking system has special sensors that form the basis of the locking system. They consist of very small switches and limit switches, as well as actuators and a main control unit. Limit switches are designed to hold the door and further transmit information to the control unit. Switches control the position of the part that must lock the lock.
The front doors are locked using cam devices, which are controlled by two switches. The first is for opening the door, the second is for locking.
A similar system is used for the rear doors, however, there is also a fifth switch. It closes when the door is open and disables the central locking.
The control unit receives information from the remote control and door switches, processes it and sends a signal for execution to the switches, which subsequently close the lock control drive circuits.
