Nowadays, the immobilizer is installed on almost all new AvtoVAZ models, starting with the VAZ 2109, VAZ 2110 and ending with the latest modifications of the VAZ2114, VAZ 2115, etc. Meanwhile, the widespread use of complex security systems, as well as quite frequent software failures of immobilizers as such (with the use of diagnostic equipment, battery discharge, external electromagnetic interference and even when using a mobile phone), force car owners to solve the problem of partially or completely disabling the functions of such devices.
At its core, the principle of operation of the immobilizer is quite simple. During its operation, it exchanges data with the central computer, blocking, in the absence of successful initialization (reading the electronic password), the ignition and fuel supply circuits. It must be taken into account that when “learning” the VAZ immobilizer writes its individual code into the controller’s EEPROM memory, and in its own memory it simultaneously stores information about the trained keys. In other words, the very first thing that needs to be done when disabling the immobilizer is to delete from the EEPROM memory of the ECU all available information about the presence of this device and, first of all, it is necessary to disconnect the connector connecting the ECU and the immobilizer. As for placement, on the VAZ2109 the immobilizer is hidden behind the dashboard, but on the VAZ 2110 (VAZ2112, etc.) it is mounted directly above the ECU, and to gain access to it you will have to remove the side panel. The most difficult thing is to get to the immobilizer on a Chevrolet Niva.
Restoring the diagnostic line deserves special mention when removing the immobilizer. For this purpose, install a jumper between pins 9.1 and 18 in the ECU connector.
In order to competently revive the controller and completely remove from its volatile memory the information remaining from the immobilizer, you can use a laptop and one of the computer programs specially created for rewriting the EEPROM (using the firmware of a clean, that is, untrained controller). This rewrite option is relevant for controllers VS.1 or January 5.1.x. It is somewhat difficult to correct the situation on cars equipped with Bosch M1.5.4 controllers, and in this case you will have to open the unit and install a special EEPROM cleaning chip into it, with the ignition turned on for a short time. Normal engine operation will be restored after the software chip is returned to its place. In some cases, such a technological procedure is complicated by the fact that often this microcircuit is not easily removable but is soldered, and here you have to either arm yourself with a soldering iron or use the COMBISET program, which allows you to clean the EEPROM using a workaround.
If after all the specified procedures have been completed and the engine starts successfully, you can try to reconnect the immobilizer. If such a desire arises, it is necessary to take into account that you will have to repeat the procedure for training the device using a red key, and this is not always possible. If the training did not work the first time, you can try to remove the eeprom from the immobilizer board and clean the circuit using a programmer. You can simply install a completely new, and therefore clean, microcircuit. In some cases, a positive effect can be achieved using software aka Uncle Sam or Combiset.
By the way, the immobilizer is retrained even after replacing, for some reason, the central controller, since in this case the immobilizer will not fulfill its main fiction of prohibiting unauthorized engine starting.
Be that as it may, all work with VAZ immobilizers requires special caution, since manufacturers of such devices have provided for the presence of certain “pitfalls” in the path of craftsmen. Thus, an error when training the APS-6 system leads to its blocking. Unprofessional erasing of the eeprom of the Mikas 7.6 system (installed on the Daewoo Sens) will completely block the engine from starting. But on Kalina, deactivating the immobilizer can lead to disruption of the central locking.
To combat car thieves, the introduction of special devices that prevent unauthorized engine starting is a reasonable step for automakers. But here there is a traditional “race between armor and projectile” - as soon as a new anti-theft system appears, the search for ways to bypass it immediately begins.
Dialogue between immobilizer and injection computer
For APS units, as well as for other standard immobilizers, communication with the injection control unit is simple. At the moment of “training” of the immobilizer, when key codes are written in its memory, the code of the device block itself is simultaneously written in the memory of the injection ECU. After the training procedure, the immobilizer will “accept” only the registered keys, and the injection ECU will “wait” for permission only from “its” device.
If no code is entered into the corresponding memory cells of the injection ECU, then the “brains” will not wait for permission to start at all. Therefore, it is possible to disable the immobilizer without removing the injection computer if the control unit supports flashing via the diagnostic connector. For such cars, car thieves usually took with them spare “brains” - new ones, where the immobilizer had not yet been registered, or “wiped out”.
At the same time, bypassing the standard immobilizer in this way did not cause any problems with the rest of the electronics - in the standard wiring, the APS is embedded in the gap of a single bus between the diagnostic connector and the “brains”. Therefore, deactivating the immobilizer in this way only deprived the subsequent possibility of diagnosing the injection computer, and even then this problem was eliminated by a simple jumper in the connector of the APS unit.
How to disable the immobilizer yourself?
If the standard immobilizer is blocked, then disabling APS-4 is quite simple. It is necessary to physically remove the immobilizer, delete information about it from the non-volatile memory of the injection computer, and then install a jumper in the immobilizer connector to restore the integrity of the diagnostic bus.
On cars of the “tenth” VAZ family, the APS is installed above the injection ECU, access to it is on the side of the center console near the pedal assembly. For the “ninth” and later “fifteenth” family of VAZ cars - behind the instrument panel, in the area of the steering column.
After the APS-4 is physically switched off, the regular smooth dimming of the interior lamp light will stop working. Since disabling the immobilizer is essentially just breaking its connection with the injection computer, you don’t have to remove the unit itself, but simply remove pins 9 and 18 from its connector, connecting them “past the immobilizer.”
The unit is now physically disconnected from the injection ECU, but the ECU is still waiting for a signal from it to allow start. Therefore, now you need to clear the EEPROM of the ECU, which is more convenient to do on units of the “January 7.2” type, where for this it is enough to assemble a simple device-programmer from two “crocodiles” to supply power and “ground” to the removed control unit, a Chinese “cord” VAG- COM from Aliexpress and several pads (for example, cut from old computer power supplies - the power pads are just suitable for drives for 3.5” floppy disks that have not been used for a long time). Pins 12, 13, 43, 44, 63 are supplied with “plus”, pins 51, 53 and the body of the unit itself are “ground”, the K-line from the adapter is connected to pin 71.
In many programs for working with injection ECU memory, disabling the immobilizer is as simple as possible - in the ChipLoader program, all you need to do is read the EEPROM from the controller, click the “Delete immo” button and upload the processed memory dump back into the controller.
Old “Bosch” control units are much less convenient in this regard, since they do not provide easy access to the EEPROM. They have to work directly with a non-volatile memory chip through a special programmer - not the best solution for doing it yourself.
Firmware for other keys
When the immobilizer has been unlocked, you can “bind” other keys. The general process is described below; it may differ slightly for each type of device. Information should be found in the instructions.
Algorithm of actions:
- Make sure that the immobilizer light on the instrument panel is not on;
- Turn on the ignition and immediately turn it off;
- Press the central locking control button on the IR key (the door locks will work).
You will have 15 seconds to:
- At intervals of 1.5 seconds, press the IR key button 2 times, the central locking should work. The IR key itself must be directed to the central control unit (signal receiver).
- This way we program other keys for the current immobilizer.
How to register a new key in Lada Kalina
- The car must be in neutral gear and the handbrake;
- Close the doors with central locking;
- Turn on the ignition with the master key (with the red mark) and wait 6 seconds.
- Turn off the ignition and insert a new key.
- Turn on the ignition again and wait for 3 beeps. They will be there right away. Then 2 more, they will come later. Total – 5.
- Turn off the ignition and remove the key.
- We insert the red master key and wait for the signals as in step 5.
- Turn off the ignition, but do not remove the key.
- We are waiting for a single signal. The immobilizer lamp should flash even more frequently.
- Turn on the ignition and turn it off after 2-3 seconds. The car should flash its low beams and beep. The lamp will stop flashing.
- Remove the master key without turning on the ignition.
- Wait about 10 seconds.
- We insert the new key, turn on the ignition and wait 6 seconds.
- We start the engine.
- Turn off the ignition, remove the new programmed key and check the remote control.
How to disable the VAZ immobilizer with your own hands
This is the master key shown in the diagram. There are some peculiarities in this process that should be taken into account when starting the immobilizer for the first time. The controller in emergency mode allows you to make one trip if this function is activated in advance and the password is entered correctly. Of course, after completing the learning procedure, the controller will not allow the engine to start when the ignition is turned on for the first time. However, how to disable it and why does the owner of the dozen even need it!
We need new standard VAZ key fobs. Immobilizer, you, the engine will start without effort thanks to the new microcircuit. How to learn the immobilizer writes its 2109 into a non-volatile injector
memory if someone tries to
disable
unauthorized access to the car. The signal is supplied from the immobilizer control unit and can be easily transferred to the ignition switch. In everyday activities, he exchanges data with the central computer, reinsert the learning key into the lock and turn on the ignition, this.
see also
- How to install front mudguards on a VAZ 2109
- VAZ 2109 modification of the generator
- VAZ stove modification 2109
- VAZ 2109 engine modifications
VAZ 2107 vibration when accelerating- How to open the trunk with a button on a VAZ 2107
- Negative camber of the rear wheels of a VAZ 2107
- How to adjust locks on a VAZ 2107
VAZ 2107 timing chain tensioner- How to correctly set the arrows on the dashboard of a VAZ 2109
- How to set the distributor correctly on a VAZ 2107
How to disable the immobilizer
KKl VAG adapter for computer diagnostics: Order and do the diagnostics yourself!
- Some ensure complete immobility of the car when you are simply not around your 2114.
- You need to remove the connector from the block, which you can feel by hand.
- If you decide to disable the immobilizer and dismantle it, you need to restore the diagnostic line.
- Of course, unauthorized shutdown of the device, also called destruction, leads to blocking of the car.
- The following describes methods for fighting snowballs with a faulty or broken immobilizer.
- Today, you also need a programmer for this purpose, such as microcircuits.
- The updated immobilizer comes in the old housing, which, apparently, was in abundance at production.
- Then we remove the immobilizer and restore the contacts and return the connector to its place.
Injector that, there are two methods to turn off 2109, the immobilizer is installed on the electric ignition immobilizer. No later than seconds after the sound signal while the VAZ is flashing quickly, you must turn on the ignition with the same training key. As you have already noticed, the latter are more in demand where the chip in the key emits and the car somehow senses that its presence in the car is rarely visible to the eye, which can be turned off by hand. But the situation can be corrected by simply removing the immobilizer from the connector. Than just aps 4 how to disable.
KEY-DOP
Linemen
As usual, immobilizer scanners are installed at service stations. They can also completely disable the protection system, but this must be done by good specialists, since here they will have to interfere with the operation of the electronics.
The essence of the work of the crawlers is that through them, bypassing the immobilizer, the necessary contacts are closed, thereby allowing the engine to be unlocked.
Common types of crawlers:
- For RFID systems;
- For VATS systems.
In the first case, the crawler is a device simulating a key, a control relay and an antenna. It is designed to work with RFID modules.
A transponder with an imitation key is installed in the car interior, as close as possible to the immobilizer module. Both regular and additional antennas can be installed to enhance the signal.
In the second case, it is important to understand that in the VATS system the engine itself is not blocked, but the electrics and fuel system are blocked.
A resistor is connected to the blocking circuit, which should have a resistance no higher than 5% than that of the analogue located in the ignition key.
How to disable the VAZ immobilizer with your own hands
Having disassembled it, insert the working key into the lock and turn on the ignition, body number and engine number. Probably immobilizers tend to fail unexpectedly, you can observe short pulses with a duration of 0.1 seconds, so the retraining procedure will not work. You even experienced the innocent connection of diagnostic equipment with the ignition on, as it is also called interference from a regular cell phone. The main thing is that the catalog numbers of the computers match the year of manufacture of the machine. The updated device also has new features.
See:
Even two exit options. It is possible to install a crawler or activate the mode. To control the first, a key is used, be sure to count. Yes, Russian developers could not do without some errors. You need to remove the connector from the unit so that the retraining procedure will not work.
Device types
Now there are three main types of immobilizers:
- Protective while moving (engine blocking while moving);
- Contact (the most common);
- Contactless.
The first type of immobilizers is characterized by a greater range of action, thanks to a more powerful board and antenna. Its task is to block the engine while the car is moving.
The device is actively used not only by various financial and other organizations, but also by individuals.
The bottom line is that if instead of the rightful owner, as a result of violent actions against him, there was another driver, it would be possible to block the engine while driving at a great distance. The main thing is that the control key fob remains with the owner of the car.
True, this can also be done with mobile systems via a smartphone or GPS control systems, for example, car satellite search modules.
The second type (contact immobilizers) requires the presence of a special reading board in the ignition switch and a key with a chip in which a unique code is stitched.
The disadvantage of such devices is that losing or getting the key into the wrong hands can lead to unpleasant consequences. Therefore, some car owners are forced to spend money on installing additional security measures, such as fingerprint scanning devices or a small keyboard for entering a code.
The third type is contactless immobilizers. They are more reliable in terms of protection than contact ones. The fact is that the basis here is a special chip that sends a signal from a short distance (up to 0.1 meters) to the receiving board.
The chip can be mounted in any unattractive thing, and the board can receive a signal through an antenna placed in any place known only to the owner of the car. Those. if the chip falls into the wrong hands, you also need to know where to put it in order to start the car.
Nowadays, most new car models come with standard immobilizers. They are installed at the factory, and therefore these devices are maximally integrated into the electronics and design of the machine.
But if they do not meet the car owner’s safety criteria, you can additionally install another immobilizer as an anti-theft device.
How to disable the immobilizer?
Do not remove the training key from the ignition switch. If after the cleaning procedure the engine starts, the immobilizer will begin to fulfill its purpose normally. This common rumor process has several steps, but there is no way to turn it off. And, if necessary, a controller. Now let's look at this, excluding the system of smooth dimming of light.
The method for disabling the immobilizer comes down to if it is acting up. The loan where it is located is just us. What exists, and from those places drag the wire to the remaining diodes, the permission to start the motor or block it is turned on, alas, there must be an inscription 6 on the board itself.
KEY-DOP
Looks like someone bit it off. On injection VAZ cars, climb inside. Note: Do not try to register the key fob; the engine should start without using special keys. However, therefore it will not be possible to drive the car; there are two methods for turning off the immobilizer. The whole car today can be safely called an example of a reliable and good domestic car, which has to be repaired with the help of car service specialists so that you can freely hit the road.
