How to disable the VAZ 2110 immobilizer yourself without soldering

Anti-theft protection for domestic cars until the end of the last century consisted of using a steering wheel lock. This was the end of all standard security measures. The VAZ-2110 with a carburetor eight-valve engine had from the factory the same security system as all VAZ classics. However, since the beginning of the 2000s, when the injection system was integrated into the eight engine, it became possible to install an immobilizer. Oddly enough, most owners of injection engines think about how to disable the standard anti-theft system. Why and how to do this, we will try to find out today.

Warning: you will have to register the keys!

Read and analyze what is given below:

You can activate the Valet mode on the APS-4 immobilizer only with a “red” training key;
You can also disable Valet mode using a training key, and not some other one;
The main thing is that the “disabling” procedure will be combined with “registering user keys”;
If, when disabling Valet mode, you do not register user keys, then the immobilizer will not recognize them!

Usually it all ends with the service mode being successfully disabled, but they forget to register the keys. And then all that remains is to use one key - the training one. What is wrong.

Keychains “Tens”, red – educational

Note: you can disable the standard alarm system, that is, disarm the immobilizer only with a “black” key. Complete the recording procedure and continue using the keys.

Answer the question whether the immobilizer is actually turned on:

You need to turn off the ignition;
The alarm system, that is, the APS unit, must receive information about closed doors;
The interior lighting will go out;
The immobilizer LED will flash at a frequency of 0.4 Hz, but if the system is not yet activated, the pulse duration will be half a second.

If activation has been completed, short pulses can be observed - their duration is 0.1 seconds.

Contact area in the "Ten VAZ"

If the standard system is not active, it does not interfere with the operation of the auto-start alarm. And then setting the service mode does not make sense.

In some cars of the VAZ-2110 family, the factory decided to install an imported controller - “MP-7 Bosch”. In this case, the control sequence will differ from the “standard” one. The differences are indicated in the text, and they come down to one or two steps. Be patient.

In what cases should it be disabled?

At first glance, it may seem that disabling the alarm is an unnecessary matter, especially if the immo is working normally. However, there are certain reasons why a car owner is faced with the need to turn off:

Factory defect, this problem is one of the most common in “tens”. If we are talking about a more updated version, the car may be equipped with an alternative engine starting system, thanks to which the driver can bypass the protection.
A complete discharge of the battery may cause the on-board computer to perceive this situation as an attempt to break in, resulting in a lock. The control unit and the motor exchange data via a diagnostic line, so that if there is no power, the on-board computer records an error.
The control unit blocks the operation of the immo, this can be caused by various reasons. It is quite possible that one phone call to a mobile phone can disrupt the operation of the anti-theft installation. But this problem is more relevant for the first “ten” equipped with immo.
The immobilizer is broken, resulting in the need to replace it.

As you understand, there can be many reasons for dismantling the immo, but removing the device from the connector will not solve the problem (the author of the video about disconnecting the system is the KV Avtoservis channel).

Enabling and disabling APS-4

The immobilizer, even if it is activated, does not interfere with the operation of any car alarm that you decide to connect additionally. The only thing is that autostart will be impossible with it. It is possible to install a crawler or activate the Valet mode. But in the second case, the engine can be started with a blank, and in the first case, you will need to hack the alarm system.

Crawler module

Make a choice.

Shutdown procedure

Of course, here we are looking at how Valet mode is turned on. It will be easy to use:

Turn on the ignition without disarming the car;
The diode starts blinking;
The “red” key fob is brought to the reader, and the ignition is turned off while holding the key fob;
The diode will light continuously and the standard alarm buzzer will sound;
Remove the key fob;
3-5 seconds after step 3, the diode will start flashing intermittently;
Within 10 seconds, install the key fob on the reader again;
The standard alarm will produce a sound signal lasting one second, the diode will light continuously;
The key fob is removed and the ignition is turned on within 10 seconds;
The buzzer emits a short signal and the ignition is turned off.

A sequence is considered that allows you to programmatically disable the APS unit. For the Bosch MP7 controller, step 9 looks different.

ECU MP-7.0

Now it will be said exactly how.

Imagine that step "9" is replaced by the following three:

Remove the key fob, then turn on the ignition within 10 seconds;
Without waiting for the sound signal, the ignition is turned off after 2 seconds;
The buzzer sounds.

Using this sequence, the Valet mode is installed in those cars where the MP-7 ECU controller is used. VAZ cars with this controller are not uncommon. By the way, the statement almost does not apply to the 2110 family: the “Ten” was more often equipped with a domestic ECU unit.

All the sequences given above will be useless for APS-6 blocks. The VAZ company came up with the idea of making and connecting a new module when they began producing the Chevrolet Niva. Then the “6th block” moved to other cars that were produced after 2003. This means that the warning does not apply to the VAZ-2110 family.

How to get it all back

Let's say Valet mode needs to be turned off. Then you will need to take a training key fob, and at the same time you need to grab the key fobs used for disarming. Actions are carried out in the following sequence:

Turn on the ignition, bring the training key fob to the reader;
While holding the key fob in place, turn off the ignition;
The standard buzzer should emit a signal, after which the key fob is removed;
3-5 seconds after “step 2” the diode begins to blink;
When the diode blinks, a “black” key fob is brought to the reader;
The standard alarm buzzer will sound again;
After step “6” teach the next keychain;
While the diode is blinking, a “red” key fob is brought to the reader;
The diode will start to glow steadily;
You need to turn on the ignition immediately;
For the MP-7 ECU, the ignition is turned off after 1-2 seconds;
For controllers other than MP-7, the ignition is turned off after the sound signal;
Wait at least 10 seconds.

The installation, that is, the activation of the security mode, was completed completely. But, don't rush.

The APS unit is connected to the ECU

Any car alarm system that uses a one-way code is characterized by the phenomenon of loss of synchronization of the operation of elements (blocks). When we talk about the VAZ immobilizer, this is what we mean: the ECU and APS units lose synchronization.

Let's perform the resynchronization procedure:

They open the door, disable the security with a “black” key fob;
Turn on the ignition;
If the diode blinks at a frequency of 1 Hertz, you need to turn off the ignition and wait 15 seconds.

After completing step 3, the system is ready for use. In general, synchronization is lost when key fobs are registered. But this will also happen if you disconnect and then reconnect cord 28 (line “K”).

Note: do not try to register a key fob used in another LADA car! You need “standard” key fobs or new ones.

How to properly turn off the device

You need to start by disconnecting the connector from the protection, and then clear the data from the ECU flash memory. It should be noted that incorrect shutdown can lead to the car stalling and you will have to order a tow truck to transport the VAZ-2110 to a car service center. To prevent this from happening, you need to thoroughly study the features of this procedure.

There are two options for disconnecting: cutting the wires and reflashing. The first option consists of the following steps:

First you need to find the immobilizer control unit. Often it is located at the level of the radio.
After this, you need to feel it with your hand and remove the connector from the block.
As you know, the connector has 20 contacts. First, the ninth channel is cleaned, then the eighteenth, after which they are cut off.
Next, they need to be reconnected and insulated.
After removal, you need to restore the line along which diagnostics are carried out. To do this, a jumper is made that establishes communication between the ECU and the diagnostic block. After cutting and joining, K-line operation is restored.
After completing this work, the connector must be returned to its place.

Tips for installing crawler

To give the Tens engine the ability to autostart, you can install a crawler. The problem is that the code reader in VAZ-2110 cars is not standard. This leads to the following conclusion:

The purchased crawler is included in the reader loop gap. Any other option is excluded.
You can make an additional antenna yourself. It must correspond to the antenna that is installed in the VAZ reader (410 µH, 25 Ohm).

Let's look at how to connect a crawler purchased in a store:

Inclusion of a trouser loop in a gap

The black wire shown in the diagram goes to the alarm control output.

Usually they purchase a device that is not compatible with the inclusion of a standard loop in the gap. Comments are unnecessary here. Mistakes are also made during installation: in the BP-5 lineman they use the XS4 terminal block instead of the XS3, etc.

Immobilizer VAZ-2110: safety requires sacrifices

It doesn't work without sacrifices. VAZ standard immobilizers have been bringing their owners more hassle than benefit for almost 20 years.

Frequent groundless failures , refusals to start, incompatibility with other security systems, unreliability of the elementary base and jambs during assembly force us to disable the standard immobilizer by any means. But first, let’s briefly look at the principle of operation of the device in order to understand how to deal with it.

Principle of operation

The principle of operation of the immobilizer.

The operating principle of any simple immobilizer is ridiculously simple - the device communicates with the engine control unit and gives a certain signal when unauthorized access is attempted . The ECU, in turn, gives or does not give permission to start the engine. It happens like this - to start the engine, it is necessary for the immobilizer to accept the key and only after successful initialization it sends an enabling signal to the ECU. Even in the case when the key fully fits the lock, but is not initialized by the immobilizer, the latter will send a prohibiting signal to the ECU, and the unit will turn off the fuel pump and ignition system. Consequently, starting the engine will be impossible.

Transferring the antenna to the lock

The standard reader installed on the console of the Lada 2110 can be easily transferred to the ignition switch. The diode is not changed, but the antenna has to be redone:

Antenna coil for reader

A homemade coil should contain 110-120 turns. It is secured under the lock cover and connected instead of the standard antenna.

The homemade device may not work right away. Unwind turns of 10-20 units and look for their optimal number. A homemade antenna, unlike a “factory” one, will be fully compatible with those antennas that are supplied with the lineman. This means that connecting the car alarm will look simpler - you won’t have to break the standard wiring.

General information

The installation of VAZ immobilizers was put on stream after the manufacturer started producing injection engines. The purpose of the immo is to block the start of the power unit in the event of unauthorized entry into the car. Before installing or disconnecting the device in your car, we suggest that you familiarize yourself in more detail with the varieties, as well as the principle of operation of the system.

Today, cars are equipped with either contact or contactless immobilizers, with the latter being more in demand among consumers. Contact systems are controlled using a key, while contactless systems use a remote control or card. If you don’t know how to connect the alarm to the central locking, then this is quite possible. Installing an alarm system on a VAZ 2110 with your own hands is quite possible with a further combination of the alarm system and immo (the author of the video is the IZO channel))) LENTA).

As for the “dozens,” this type of alarm is found only on injection versions. To control the device there is a set of keys. Red represents the master key, which is used to activate the protection. The black key is used by the owner of the car. The procedure for “learning” or activating the system is usually carried out in the showroom, before the car goes on sale. Although, in principle, connecting the alarm to the central locking of a VAZ with further activation can be done at home.

The first “tens” were equipped with APS-4 systems, but after some time the cars began to be equipped with more modernized versions of APS-6. As for installation, the immobilizer is located either in the steering column, or behind the dashboard, or behind the radio, and the code is in the ignition switch. The APS-6 system does not connect to the VAZ hazard alarm, but can be used to control power windows (if they are electric), as well as fog lights. It should be noted that some APS-6 are equipped with a body from the fourth models, this is probably due to the oversupply of APS-4 production. In this case, the number 4 will be marked on the case, and the diagram itself should have the inscription APS-6.

Principle of operation

If you decide to connect the immo to the central locking of a VAZ 2110, first familiarize yourself with the principle of operation of the system. The operating principle of the immo is based on the exchange of data between the device itself, as well as the control unit. Taking into account a particular situation, the immobilizer determines whether to give permission to start the engine or block it. In the latter case, the ignition circuit and the fuel pump are blocked, making it impossible to start the engine. In other words, if you do not have an immo key, then operating the car will be impossible.

Video “Visual instructions for removing immo from “Ten”

More detailed and visual instructions for disabling the immobilizer on VAZ 2110 cars are given in the video below (the author of the video is Dmitry Epishev).

of rumors that the standard immobilizer is often buggy and only brings problems. But basically these are reviews from cars before 2002, and after which the plant took into account all the comments of the APS-4 immobilizer and corrected them. And on the latest Priora and Kalina cars, APS-6 raises no complaints at all .

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In addition, in Kalina and Priora the APS chip is already built inside the key , and on the VAZ 2110 the APS chip is placed separately in the form of a key fob , which also causes unnecessary movements