Standard anti-theft systems of domestic cars have never been highly reliable. In the “four”, the immobilizer is responsible for protecting the car from theft. This protection system was installed only in injection versions of the VAZ. The essence of the operation of this device is the exchange of signals between the chip in the ignition key and the electronic control unit. If there is no signal, the system will not allow the engine to start and will stop supplying power to it. Over time, this system begins to fail, which at one point makes it impossible to start the engine normally.
Useful video:
In this case, drivers are wondering how to disable the immobilizer on a VAZ 2114. Instructions for dismantling the device are presented below.
Where is the immobilizer located on the VAZ 2114?
The anti-theft engine start control unit is located directly under the warning light, inside the panel. This arrangement is due to the range of the chip built into the ignition key. Before you disable the immobilizer on a VAZ 2114 with your own hands, you should take care of the non-standard anti-theft system. It is clear that a standard immo is not capable of 100% protecting a car from car thieves, but you cannot leave the car without any kind of alarm.
By looking into the cavity under the steering column, you can determine where the immobilizer is located on the VAZ 2114. Wiring from the warning lamp and a pair of plugs go to it. Some owners move the system housing to another location, but it is almost always located in the front of the car.
Video “Visual instructions for disabling immo with your own hands”
Find out how to do everything right and avoid mistakes from the video below (author - KV Avtoservis channel).
Protecting your car from potential theft is a top priority for any sane car owner. And it doesn’t matter whether he has a VAZ or a Lexus, they are all subject to theft, it just depends on the level of skill of the thief. Most cars today are always equipped with at least a minimal one-way alarm, but often this completely depends on the choice of car equipment: a cheap one may not have it, while the most expensive one does.
An example of such a car can be called the VAZ 2114, here in the maximum configuration there is an immobilizer, a two-way alarm system and many other useful things.
The car itself can be called an example of a truly reliable and good domestic car, which will start in the winter and will not overheat in the summer heat, being moderately powerful and economical. A fairly comfortable cabin can accommodate up to five people, and the trunk will take up to 80 kg of cargo when the cabin is fully loaded. Today we will pay attention to what a standard VAZ immobilizer is, what it looks like, what its functions are, and what models there are in the world. Information on how you can turn it off yourself if it’s acting up will also be educational.
Operating principle of the immobilizer
Data exchange between the vehicle's electronic control unit (ECU) and the safety device and the periodic cessation of impulses to start one or another system - this is the principle of operation of the standard immobilizer on 2114. Damage to the chip or its loss, failure of the device unit, damage to the wiring - all this over time leads to involuntary operation of the system. Finding the chip in the key in the immo signal processing area means permission to start the car. Forging a chip from a key to bypass the system is problematic.
A failure in the system means that any manipulations with the engine and the systems that ensure its operation are useless until the chip gives permission or the device is dismantled.
Useful : Where is the central locking fuse on a VAZ 2114?
Immobilizer problems
Due to the device's access to the engine starting system, its components are not permitted. A sudden stop in the supply of fuel and power to the engine means a blockage on the part of the anti-theft system. At the time of development of this system, many nuances with possible interference from other devices were not taken into account. This leads to situations where, when a smartphone is nearby, the exchange of information between the chip and the unit is interrupted. Disabling the device does not always help, so a complete replacement of the system with a new one is required. Independently disabling the immobilizer on a VAZ 2114 is one way to avoid possible problems with starting the engine.
IF A JANUARY-5.1 OR M1.5.4 CONTROLLER IS INSTALLED
Training the “bypass password”:
1. The anti-theft system is armed. Prepare a six-digit password that you want to train the system with. Each digit can be from 1 to 9. 2. Turn on the ignition. The “Check Engine” (CE) lamp on the instrument cluster will illuminate continuously. The system status indicator LED will flash 2 times per second. 3. Bring “your” red key to the system status indicator, and while holding it, turn off the ignition. The LED will light up continuously and the buzzer will emit a short beep. 4. 3...5 seconds after the ignition is turned off, the indicator LED will start blinking at a frequency of 10 times per second. 5. No later than 10 seconds after the LED starts blinking, turn on the car’s ignition, the CE lamp will light up continuously. 6. Wait 1 minute until the CE lamp goes off. Enter the first digit of the password by briefly pressing the accelerator pedal all the way. You need to press as many times as the first digit of the entered password. Each time you press the pedal, the CE lamp comes on. The time the pedal is held down should be no more than 3 seconds. 7. To proceed to entering the next digit, press the accelerator pedal all the way and hold it in this position until the CE lamp goes out, this time is approximately 5 seconds. Release the accelerator pedal.
ATTENTION!
If the CE lamp does not go out, but flashes once per second, it means that an error occurred when entering the password number, for example, you pressed the accelerator pedal more than 9 times or did not press the pedal once for 1 minute. In this case, you need to turn off the ignition for at least 10 seconds and start learning the “bypass password” again.
8. Enter the remaining five digits of the password. After entering each digit and holding the accelerator pedal down for more than 5 seconds, the CE lamp should go out. If the lamp flashes, turn off the ignition for at least 10 seconds and then start learning the “bypass password” again. 9. Turn off the ignition for at least 10 seconds.
ATTENTION!
1. The entered bypass password has no restrictions on its use, i.e. Once programmed, a password can be used many times 2. If the password is not entered completely, it is not remembered. 3. If you want to disable the immobilization bypass mode programmed earlier, then you should repeat steps 2...6, but in step 6, when you press the accelerator pedal for the first time, hold it for more than 5 seconds. The previously programmed “bypass password” is erased.
Necessary tools and equipment
There are plenty of options on how to bypass the immobilizer on a VAZ 2114, but the surest way to prevent problems is to disable it completely. To carry out the shutdown yourself, you will need the following tools:
- Knife for cutting wires;
- Electrical tape for insulating cut contacts;
- Soldering iron (if desired, reflash the key in the device memory).
Disabling the standard system does not require much knowledge in the field of circuitry, so if you have instructions, dismantling can be done manually. Disconnecting the chip with wires from the device body does not mean turning off the anti-theft. For further operation and starting the engine without interruptions, you need to remove all information from the block. Instructions with step-by-step actions are described below.
Safety Notes
A standard device such as the APS provides the best level of protection. But an alarm system, even the most modern one, can be considered only an additional security device. It does not exchange data with the ECU and does not prevent the engine from starting. At the same time, when installing an alarm system with auto-start, blocking is always implemented. Two cords going to the main unit are connected to the starter cable. And until the security is turned off, you cannot start the engine.
Typical signaling connection diagram
All wiring connected to the ignition switch carries significant current. But doing the installation yourself does not always ensure good quality connections. In general, it is better to entrust the autostart connection to an experienced electrician. We wish you success.
Disabling the immobilizer on the VAZ 2114
An immo failure can block the power supply - you should eliminate this situation and turn it off completely. The step-by-step disconnection process looks like this:
- Get to the block under the steering column and remove the connectors from it.
- Find 9th And 18th contacts on the removed chip. Cut the wires at a distance of 4-5 centimeters from the chip body.
- Strip the cut wires and insulate them with electrical tape. By this action you leave the possibility for the diagnostic line to the ECU to work.
- Return the disconnected chips to their place and install the dismantled block in place.
This simple shutdown process allows you to get 100% results. If a failure occurs, the controller, which is independently responsible for starting the engine, does not allow movement to begin.
Types of devices
Any immobilizer, not only from VAZ, has its purpose. This device must create conditions under which the movement of the car and any manipulations with it automatically become impossible if someone tries to gain unauthorized access to the car. Okay, isn't it? Someone gets into your VAZ 2114, tries to move away, but it doesn’t move and shows no signs of life at all.
This effect can be achieved using various methods: blocking the gearbox gate, blocking the fuel pump, or closing a certain valve in the pipeline, which may also cut off the air supply.
In general, you understand the essence of the immobilizer device. The great advantage of just such a device is that its electrical unit can be placed in the most unpredictable place and the thief will break his head a thousand times, but will not be able to turn it off.
Immobilizer VAZ 2114
Based on the principle of operation, there may also be various types of immobilizer devices from the VAZ plant. Some ensure complete immobility of the car when you are simply not around your 2114. In this case, the hijacker, having climbed inside, simply will not be able to do anything. Another option is when the immobilizer allows the thief to sit comfortably in the car, even drive a little, but at the most necessary moment the car simply stops rooted to the spot. An inexperienced thief may think that something is simply broken in the car and abandon his attempt to steal it. If he turns out to be experienced and understands what happened, then there will be no miracle here either - no one will look for the control unit in the middle of the street and he will have to leave.
Flashing the electronic control unit board
In the injection version 2114, the engine control unit is the most important link in the operation of all power systems of the main unit. Incorporation into the circuit and incorrect soldering of contacts on the ECU board can result in complete breakdown. To deactivate the standard anti-theft system, you can flash the board. Step by step the work looks like this:
- Remove the computer and open its cover.
- Find the chip responsible for the anti-theft device.
- Next, depending on your skills, we remove the old circuit and replace it with a new one, or we delete data from the old one using a programmer. The process of using the programmer is not worth describing, because... There are tons of educational videos on YouTube.
Eliminating the startup problem by disabling immo functions is the best option. Replacing the standard equipment to protect a car from theft with a new one is a logical step after removing the “staff”. There is no need to install new systems to bypass the immobilizer, because after cutting off the wires on the plug, its data is not read into the ECU. The only thing that needs to be taken into account when cutting contacts is possible damage to the diagnostic wiring. Follow the instructions, otherwise you will have to install new wires on the scan wiring. An installed jumper in the ECU is another option for stopping the functions of the anti-theft system. Its installation must be carried out by qualified professionals. Without experience in the field of soldering microcircuits, trying to open the electronic control unit yourself is stupid. If you decide to do this work yourself, study the location of all the microcircuits. Depending on the firmware, the pinout of the VAZ 2114 immobilizer may differ. The required microcircuit will be indicated by the combination 24C04 or the word EEPROM. To quickly solve the problem of blocking the power system, you should follow the first method described in the instructions. In the second case, you will need time, software and the ability to solder chips.
