Most modern cars, including AvtoVAZ products, are equipped with a central lock. The main function of this system is to prevent attempts of unauthorized access to the passenger compartment and car theft. The complete set of the central lock is an electronic unit, actuators or actuators, limit switches, a key fob for controlling the central locking operation. Like any equipment, central locks fail.
During the repair process, car owners may have difficulties. Not everyone knows where the central locking control unit is located. But often the cause of all malfunctions is precisely in it.
Features of the device
A central lock is a set of equipment that, upon receipt of certain commands, opens or closes a car. For greater ease of use, the command issuing process is performed remotely (remotely).
Some car owners choose the convenient function of locking all doors at a certain time. Why is this necessary? This function is very useful when the driver did not have time, or completely forgot to close the door. But if you lost your keys and there is no second remote, then this is a serious problem. In case of traffic accidents, the security system will automatically open all the locks.
Device
The central lock circuit is a set of sensors, limit switches, actuators, control unit.
Limit switches are required to obtain door position information. This data is transmitted to the control unit. Due to the switches, the lock part is fixed. The car doors are equipped with a special cam device. So that it can be fixed, in the front doors there are special miniature switches. Each actuator has two switches. One switch is responsible for locking the locks, and the second is responsible for opening. The circuit also provides for two more actuators. In the lock drive on the lever device, another switch is installed. It determines if the door is open. If so, the switch contacts close. The central lock is deactivated.
The central locking control unit VAZ-2110 receives signals from miniature switches and then gives a command to the control mechanisms. To open the locks, the signal is sent to the actuators.
Central locking installation
The central lock in the car (and in particular the cars from AvtoVAZ) is an additional option. However, this is true for the 2000s. Now all AvtoVAZ products are standardly equipped in all trim levels with a central locking mechanism. On those cars where the central locking system is not installed, the owner himself can install the device. Installing a central lock is not a complicated procedure.
The first step is to disconnect the battery terminals. Also remove the door cards and the window mechanism. After that, it is necessary to choose a suitable place for the installation of activators. The mechanism can be installed in any position. But it is important that the thrust of the actuator can move freely.
VAZ-2110 cars have a special door design. The rod before installation must be bent in a certain way. This angle should be both minimal and clear. If it is close to the arc or the distance from the rod to the latch is too large, problems may occur in the system. There will not be enough power to carry out traction. All effort will be spent on overcoming the bend.
Features of laying wires
After the activator is installed, wires are laid from each car door to the place where the central locking control unit is located. On the "dozens", as well as on many other cars, it is better to lay wires on the bottom of the doors.
So they will not be affected by windows and other moving components. In places where the wires are connected, they are well insulated. Otherwise short circuits are possible. To lay the wires between the car body and the doors, rubber corrugated parts are used. After the wires are pulled, make sure that they are not broken during the operation of the door.
Mounting the control unit
The installation of a central lock also provides for the installation of a control unit. Most often it is placed either in the doorway or behind the central panel. Keep in mind that vehicle safety depends on the location of the unit. Control systems are installed in hard-to-reach places for hijackers.
From where the central locking control unit is located, not only the car’s safety in terms of theft, but also the performance of the system itself will depend. It is not recommended to install control electronics at the bottom of the doors. There accumulates dirt and water. After some time, this can lead to the failure of the device. Also, when installing the unit, it is recommended to pay attention to the windows. The block should not interfere with their work.
Connection
Next, the system is connected. To do this, the kit has a central locking scheme.
The battery is connected to the battery through a fuse. After connecting all the wires, they check how the equipment works. During the testing process, attention should be paid to the smoothness and ease of operation of the mechanism. If the solenoid does not provide enough force to move the traction, then check the installation location of the actuator again.
Central locking with alarm can work in the complex. Modern alarms have the ability to connect a central lock to them. But here it is necessary to pay attention to the compatibility of electrical circuits.
Typical malfunctions
These devices also fail. There are many reasons for this. To identify a breakdown, it is necessary to conduct a diagnosis. There are mechanical breakdowns and electrical. Consider these problems and find out how to fix them. Although sometimes activator repair is economically disadvantageous, it’s cheaper to just buy a new central lock. The price of the activator is 200 rubles.
Mechanical malfunctions
This includes various mechanical damage, the weakening of the tie rods. The limit switch mounting may have loosened. This is associated with violations of regulatory information, the destruction or even wear of parts in the gearbox of the actuator.
Mechanical damage includes breakdowns, the cause of which is associated with poor-quality installation and adjustment. If such problems are observed, they should be eliminated as soon as possible and the causes removed. But it’s easier to replace the central lock. The price of executive devices starts from two hundred rubles.
Electrical breakdowns
These problems include all breakdowns that may occur in an electrical circuit. Before starting the diagnosis, you should check that the electrical network in the machine is fully operational, the remote control has charged batteries, and the fuses in the central lock module have not blown. Often it was possible to restore the operation of a faulty central lock only by replacing the fuses. If the central lock is still not working, you should look for a breakdown in the remote control or in the mechanism itself.
If the remote control fails, then rewrite the code in the electronic key. If the problem cannot be solved in this way, the transmitter in the key may be defective. In these cases, experts recommend having a different key with a code. If you have lost your keys, you will have to purchase new ones.
Also, a breakdown may be associated with the remote control receiver. The easiest way to determine the malfunction is to install a known-good receiver. If this is not possible, then dismantle the door cards. After checking the mechanical part, it is checked whether the energy goes to the control terminals of the actuators. The wires may have broken or broken.
Lack of power at the terminals is also associated with oxidation of the wires. The control unit may fail due to various malfunctions in the alarm control system. Block replacement will help here. It is enough to know where the central locking control unit is located. Often it is located behind the radio, on the driver's side. Then you need to disconnect it and install a new one instead.
Conclusion
So, we found out what a central lock in a car is. As you can see, this is a very useful device that greatly facilitates the process of locking doors. The reviews of those who already use such a device are only positive, which indicates its convenience.