Life hack: Lada Priora immobilizer - standard alarm

Alarm on a Priora is a serious issue; everyone is afraid for their car, trying to protect it to the maximum. The Priora is equipped with an alarm system from the factory - an immobilizer (immobilizer). On a Lada Priora car, it allows you to partially protect the car from theft. The immobilizer on the Prior is a factory anti-theft device combined with the car's electrical package, which is located under the center console. Owners immediately try to disable the immobilizer on their Priora, because they consider it archaic and prefer to install a more advanced alarm system on the car instead of the standard anti-theft one. Installing an alarm on a Priora will cost approximately 10,000 -17,000 rubles.

Disabling the immobilizer on a Priora is not easy. The engine is started by an electronic engine control system, which also blocks its operation when the immobilizer is turned on. And already in the electronic control unit of the car, in the place where the EEPROM circuits are stored, the process of data exchange with the immobilizer takes place, and at the ECU level there is a ban or permission to start the engine. You can turn off the alarm on a Priora yourself, but this requires knowledge of electronics and special tools.

What is an immobilizer for?

The immobilizer will allow you to start the engine only if the key is recognized in the ignition switch. This blocking device, by transmitting a signal to the ECU, can block sparking and fuel supply. The immo receives a signal from a key fob with a chip that sends a key recognition signal.

That is, even if an attacker fakes the ignition key itself, but does not fake the key fob, he will not be able to steal the car. An impulse is sent from the key fob chip, and without the key fob, the key is a plug for the ignition switch. Its work with the data of the electronic control unit is carried out in seconds, and during this time the immobilizer manages to determine the authenticity of the chip.

Principle of operation

The principle of operation of the standard Priora alarm, like any other, with reliable dynamic coding, is quite simple and understandable. The activated signaling system accepts for execution exclusively the commands of the native, trained chip installed in the ignition key of the Lada Priora. This will be followed by a series of logically related actions:

• the communication coil, having received a reliable encoded signal from the ignition key chip, forwards it to the standard immobilizer (IMMO) of the Lada;
• he, in turn, checks the received reliable, encoded signal with the code recorded in his memory;
• if they match, the immobilizer sends a command to the authorized engine start of the Priora ECU;
• The Lada ECU, having received a signal from the IMMO alarm, unlocks its electrical circuits;
• If there is an unauthorized attempt to start the Priora engine, the IMMO will not send a confirmation signal to the ECU and the control circuits will not be unlocked. In addition, a siren warning signal with light flashes will sound;
• in addition, the car key fob, built into the chipped ignition key, controls the central locking of the Lada Priora and its window lifts;
• By installing shock or volume sensors yourself, the alarm system receives an additional option to increase its reliability.

Important: be sure to require activation of the standard Priora alarm system when purchasing it. Otherwise, you will have to configure it yourself using a training key with a red insert. In this case, various nuances with its performance are possible.

Operating principle of the immobilizer

The principle of immo operation is that while the engine is turned off, the ignition system is blocked, and when the key is inserted into the lock, it begins its work. One of the main elements of the immobilizer device - the antenna - uses an adapter to recognize the signal from the chip inside the key fob. If there is no key fob with a chip, the immo antenna will not receive the signal and the system will not work. After recognizing the key installed in the ignition switch, a positive signal is sent from the ECU to unlock the ignition system. The anti-theft system is completed within seconds and the vehicle is ready to start.

Information about the car device Immobilizer

Most people who recently purchased a car have no idea that their vehicle is equipped with an anti-theft device. An immobilizer is an electrical type device that does not block the ability to start the engine. The main function that the immo antenna performs is to break the electronic circuits of the car in the amount of one piece or several at once, due to which the potential for vehicle theft is reduced. For this reason, the attacker may not even know that the car he intends to “illegally purchase” is equipped with an immobilizer.

There are 2 types of immobilizer: additional and standard. The standard type of anti-theft device is integrated into the vehicle during its assembly phase. Using special software (software), it limits access to the unit that controls the car’s engine. The standard type of immo is usually a transport immobilizer, that is, a wireless immobilizer.

The transport immobilizer consists of three main elements:

• Electromagnetic type relay - with its help, circuits are broken;
• The manual block is designed to control all components of the system. Thanks to this component, commands are transmitted and signals are processed;
• Chip, key, password, card or code owned by the owner of the car. The immobilizer system recognizes these components.

Thanks to this antenna, radio exchange between the immobilizer key and the control unit occurs. Recently, immo with a remote control type for the Lada Priora car began to have several immo antennas. The anti-theft device is placed on the vehicle's locking tongue, secured with just one screw, the antenna connector is usually located deep in the car panel right behind the rubberized curtain of the steering column.

Causes of immobilizer malfunction

Sometimes the immobilizer of VAZ cars breaks down, and the driver cannot go anywhere in the car. Immo malfunction can occur for a number of reasons:

• Battery completely discharged;
• Technical difficulites;
• Software problems.

The worst way to kill an immo is to completely discharge the battery or simply disconnect the battery from the car's power supply. De-energizing the network will result in a chaotic code being written to the EEPROM circuit in the ECU, all settings will be lost, and the immobilizer will block engine operation.

Technical problems are problems with the boards, immobilizer antenna, or its adapter. The most common failure is a “burnt” board. You can accurately determine which part has failed using the anti-theft device diagnostics. It is important to monitor the immobilizer fuse in the Priora, because it serves as a consumable element in the overall chain. Exactly also a breakdown of electrical equipment can adversely affect the operation of the immobilizer. The problem may occur after replacing the engine or electronic control unit. When replacing the engine, it is worth installing a new ECU and a new immo chip.

Software problems are failures of the code recorded by a specialist. They can occur in EEPROM cells or the alarm key fob chip. If the operation of the ECU chip can be corrected using a computer, adapter and equipment, then the key fob chip will have to be changed. There have been cases of blocking due to interference from smartphones and other mobile devices.

Signs of a faulty factory security system

• the car does not start;
• the electronic control unit does not respond in any way to pressing the key fob;
• the system does not work when hitting the surface of the body;
• constantly activated for no apparent reason;
• the doors are locked after pressing the open button.

Malfunctions are often associated with the design of the standard security system. Owners of domestic vehicles note that after several years of operation, the starter does not activate when trying to start the engine, or turns off after a few revolutions.

If one of the problems occurs, turn off the device, then contact the installers to diagnose and determine the cause of the problem. Before contacting the service center, test the system yourself, following the sequence of measures.

Disabling without key fob

Disobedience to a car alarm key fob is a rare precedent, but it does happen. The main reason is that the alarm system was assembled and installed with defects that appear over time. The car owner is faced with a dilemma - it is necessary to disable the security device without a remote control. This part of the text is devoted to turning off the system without using the control panel.

The reasons for disconnection can be indirect and objective. Indirect ones include inhibited actions of the key fob that occur due to wear of the remote control battery or accumulator. It is recommended to avoid using the remote control away from the machine.

Another reason when it is impossible to turn off the alarm is that the car battery is discharged. In this case, the owner takes measures to bring the battery into working condition. Next steps are taken with the car alarm.

Objective reasons include worn-out car alarms. In such cases, turning off the device is very problematic. To turn off the alarm, it is advisable to gain access to the service button, or try to turn off the power to the system.

Another reason is that the remote control has lost synchronization with the protection device. The problem can be solved by flashing the remote control yourself, according to the instructions, after first using the emergency opening of the car. How to turn off the alarm in an emergency was discussed above. In any case, there are two main options: car alarm emergency button; using a PIN code.

You shouldn’t give in to panic if you can’t turn off the car alarm at the right time. First of all, you need to remember the recommendations of the alarm operating manual. It is possible to disable it without a key fob, either with your own hands or with the involvement of service organizations. Access to the car interior is always possible.

Sensitively responding to market demands, automakers have created a special anti-theft system that is installed on the car directly on the assembly line. The Priora's security is asleep until it is activated by the owner. This is an immobilizer, or as it was called even more simply - an immobilizer, a standard alarm system of modern cars.

Algorithm of actions

1. Make sure there are no signs of damage to the key fob. Check the functionality of buttons and contacts.
2. Check the power supply. If necessary, replace with a new one.
3. Check the functionality of the central control unit. If the central unit breaks down or malfunctions, you will need to contact the service center installers to install new software.
4. The device that detects impacts on the surface of the car may not work if the settings are incorrect.
5. Drivers often encounter the opposite problem - the system reacts to the slightest contact with the body as a result of falling leaves, wind, rain, snow, etc. You will also need help with setup here.

Another common problem that the driver cannot cope with on his own is the loss of connection between the power supply and the electromagnetic contact. The contact ensures uninterrupted opening and closing of the prior doors. To determine the problem, you need a special device - a multimeter. Depending on the reasons that caused the malfunction, reinstallation of the software or replacement of parts is required.

What is included in the alarm kit

First of all, this is, of course, the control unit of the system. It is also a receiver and transmitter of the necessary signals. Yes, this is again an ECU (electronic control unit) with a program embedded in it. Depending on the type of alarm, the unit is equipped with a certain number of outputs to various nodes.

A separate element is a remote shock sensor. It reacts to the force applied to the car, that is, it gives a signal about an attempt to penetrate the car. By the way, it is adjustable. Each owner adjusts its sensitivity with his own hands. You can install it anywhere in the Priora cabin. Typically all installers place it under the fuse box to the lower left of the steering column.

Signal bell. An audible alarm that sounds a siren or other programmed sound in the event of a break-in attempt. Usually, they try to install it under the front hood in the engine compartment in the area of ​​the left side member.

"Vallet" button. This is a small button on a long two-wire wire. The owner of the Priora must know it, regardless of whether the alarm was installed with their own hands or the installation was carried out at a service center. It is placed in a secret place, as it serves as an emergency shutdown of the system.

Standard wiring harness with relays and fuses. Typically, a relay is installed to open a signal from the block of any Priora circuit in response to a signal from the ECU. The fuses are located on the line of constant current supply to the alarm system.

Well, and two key fobs: a working one and a spare one. Their design and number of buttons also depends on the type of system being installed.

How to activate the immobilizer

• To activate the immobilizer on a Priora, you will need a training key. It is almost 2 times smaller in size than the real one, and is used only during “training”. To work with it, you should adhere to the following algorithm of actions:
• Close all door locks;
• Insert the training key, turn it and hold it in the final position for at least 5-6 seconds, and then turn it back. During these 5-6 seconds, the indicator light on the dashboard should blink continuously. If it goes out ahead of time, it means something was done wrong.
• Remove the training key from the ignition switch and insert the working key, start the ignition system. All this needs to be done while the light on the dashboard is flashing. If everything was done correctly, three beeps will sound first, followed by two more after a pause. If this does not happen, then the immobilizer is faulty.

The most famous and popular security systems

The cigarette lighter on the Priora does not work reasons

Many different companies produce car security alarm kits. Moreover, one company has in its assortment both one-way and feedback systems. For Priora owners, the most popular were the following:

1. StarLine.
2. CHER-KHAN.
3. Pandora.
4. Magnum.
5. Sheriff.
6. Alligator.
7. Tomahawk.
8. Clifford.
9. Stalker.
10. Pantera.

These are the top 10 alarm systems that dominate the domestic market. They are the ones that are most popular among Russian car owners. Of course, in principle, any of them can be installed on the Priora with your own hands, you just need to know what and where to install the Electrical package from Priora

How to disable the immobilizer

It is difficult to disable immo on your own, because it is activated at the car dealership upon purchase, or at a car service center only if the owner of the car expresses his desire. Disabling the immobilizer on a Priora means reprogramming the electronic immo control unit. But not everything is so simple - an adapter and software are needed to change the code, because the immobilizer operating algorithm is written in a programming language that is not basic for computer operating systems. Remember that you can disable the immobilizer only when you are sure that the car is safe.

The procedure for disabling the immobilizer may vary. It all depends on the generation of the device board - either M73 or M74 was installed in the immobilizer. Anyone who is looking for how to independently disable the immobilizer on a Priora should find a K-Line class adapter.

ADVANTAGES AND DISADVANTAGES OF THE PRIORA IMMOBILIZER

Of course, car safety is an important issue, and a security system is necessary. But which is better? A factory-installed system or an anti-theft system installed by specialists from a third-party developer? Both options have their pros and cons. And they are worth considering.

Minuses. First of all, frequent failures of these systems occur almost twice as often as with alarms from third-party developers. And if you consider that it is simply impossible to disable the immobilizer yourself, and any installed one has a “valet” button for this purpose, which blocks the signaling in emergency mode, then this is a definite minus. Well, the lack of feedback and autostart in the standard alarm system. That's probably all the downsides.

Let's consider the advantages. First of all, the advantage is that there is no need to make a connection into the car's wiring system. Any alarm installed on a car necessarily involves cutting certain wires necessary to start the engine. Most often this is the power supply wire for the electric fuel pump. It is turned off at a certain place and turned on in a general purpose relay, which connects it upon command from the remote control. And once the wires are cut, no matter how hard you try to insulate them, they are susceptible to oxidation and spontaneous decay. And this is an unpleasant moment. This will not happen with a standard alarm. In addition, a third-party alarm system is able to disable only one circuit, and with some skill this can be circumvented. But the factory immobilizer completely blocks the engine control unit itself, and this is much more difficult. In general, only the owner of the car can choose. Just remember that if the immobilizer is activated, it is impossible to disable it yourself.

For M-74, the process of turning off the immobilizer will look like this:

Disconnect the battery, disconnect the immobilizer control unit from the network. A harness with cables and a double switch is connected to the immobilizer. The circuit is connected to the battery and computer using a VAG-COM adapter. The first button of the switch is activated, it “gives the go-ahead” to change the code. The code is changed in the WinFlash program. First of all, in the settings you select the module type and the information transfer speed parameter. The second switch button is activated; it is responsible for communication between the computer and the immo control unit. The standard lock code is retained, and the Eeprom cell data is overwritten. The whole process takes a long time, but you need to wait for contact. Upon completion of the recording process, the control unit is connected back to the vehicle network, and the battery is started.

For M-73 the process will look simpler:

Installing the OpenBox program and the HxD file editor on your computer. Connecting the immobilizer to the computer via an adapter, the standard EEPROM code is read. The code is saved. Open the saved code in a file editor and add the first line with the text: FFFFFFFFFF. Save changes. But such a file can be searched on the Internet. Load the edited code into the immo memory through the program. Disconnect the module and install it in the car. Disabling the immobilizer using a crawler

It is easier to disable the immobilizer on a Priora yourself using a device - an immobilizer crawler for a Priora (most often they are produced by Starline). To do this you need:

Find and disassemble the immobilizer unit in the Priora. Before disconnecting from the network, connect to the computer via an adapter. Resolder the resistor chip to modify the blocker control module. Run Eeprom and Flash diagnostics, save existing versions. Install the “untrained” program in place of the old one. Solder the resistor chip. Deactivate the anti-theft system. To do this, you can change the ignition switch in the Priora to “update” the immobilizer. It’s just that the immobilizer training key will not be used in the future. Disabling the immobilizer without using a crawler

These methods have already been described and they are more reliable because they completely change the firmware of the device and provide a guarantee that the immobilizer will no longer break and will not leave the car owner in the cold. Using a waste module may be an innovative way, but it only masks the problem, not eradicates it.

The standard alarm system on the Lada Priora consists of the following links:

1. Control unit – connected to the glass unit control system;
2. Communication coil – installed in the ignition switch;
3. Main and demonstrative keys, which are equipped with a buzzer and contact keys;
4. Central key on the dashboard;
5. The control unit is located on the right side of the brake pedal. It has several connection points.

Reliability level

Undoubtedly, the standard alarm system installed and configured on the Lada Priora is simple, reliable and fully adapted to difficult local weather conditions. Properly activated, it leaves no doubt about its functionality. Besides:

Unfortunately, if the factory, standard installation is a big plus of such an alarm, then at the same time it is also a significant minus. Thousands of analogues of such alarms drive Lada Prioras across the vast expanses of the country. No mystery for attackers. But they are not looking for cars with alarms, but without them at all. You also need to understand these immobilizers, and time is money. And unnecessary problems are not for the criminal business.

What to do if Priora is not removed from the standard alarm!

The hazard lights are blinking, the car does not respond to the ignition key buttons. As a rule, several blocks are involved here, which are synchronized with each other.

1. Ignition
2. Radio channel module (Located in the driver's door)
3. Electrical package block (Comfort block)
4. Engine ECU

New blocks come with non-activated codes inside and can be installed on any car without problems, but once you register (train) the keys, a special code is written into all these blocks, which is synchronized with each other and serves as a standard alarm system. (Immobilizer) As soon as you turn the ignition key, within five seconds there is a poll between the key and the units, if the code matches everywhere, then the engine ECU gives permission to start, if the code of at least one device is not recognized, the engine ECU is blocked and the car does not start.

Connection points for standard alarm systems on Lada Priora

• Hood end (-) – white, black in the connector in the middle;
• Ignition (+) – orange in the connector in the middle;
• Button for opening the trunk lid (-) – black, white in a small connector;
• Luggage compartment end switch (-) – black, white in a small connector;
• Factory sound warning system - black, white on the safety panel. Owners of VAZ models change or improve the existing protection. Upgrading protection on a Priora is not difficult. To control the central locking, you need to cut the brown wire in the driver's door and connect according to the diagram.

Connecting limit switches

The alarm is connected to the Priora central locking system through limit switches using diode isolation. You can download connection diagrams on social networks.

Basic limit switches

1. Ignition – blue, black, located in the ignition switch area;
2. Starter – red;
3. Turns – blue and blue with black line;
4. Ignition – orange;
5. The hood tip is white with a black stripe;
6. The generator is black with a brown line.

LOCATION AND ACTIVATION OF THE STANDARD IMMOBILIZER "PRIORA"

Unlike the first models with car anti-theft systems, in which the APS was located separately and could easily be turned off, on the Priora and Kalina the device is installed directly in the electrical package. This is more convenient in that it simultaneously controls the APS sound signal, electric windows and rear fog lights. Plus, the unit has built-in control of the turn signal. All this facilitates the operation of the alarm. The electrical package unit on the Priora is located next to the ECU, that is, in the “beard” of the control panel. To access it, simply unscrew the lower side wall at the feet of the passenger or driver.

When leaving the factory, the standard alarm system on the Priora is not activated. This is done either by a specialist in a sales showroom or by a car service technician. The immobilizer on the Priora is activated solely at the request of the owner. The problem is that it is simply impossible to disable the “learned” immobilizer unit yourself.

A simple scheme for connecting an alarm system to a Priora

A key module is installed in the driver's door. To find it, remove the trim. Take brown wires. He is responsible for sending the signal. Connect the signaling relay to its open. Connect the two wires that are connected to each end of the cut wire to the main unit. Relay connections are made to one end.

Complicated version

Find the 2170 bead block, identify the tri-core connector. Find the wiring: red-black, green-black, eleventh. Break all three contacts. Lead the wiring from the break point to the control unit. The difficulty is to get to the block. It is located in the gas pedal area. The front panel is removed to provide access.

Standard alarm

The Lada Priora car is equipped with a standard electronic anti-theft remote control system, built into the glass control module, which includes the following basic functions:

• Engine start blocking;
• Turn on the sound and light signal remotely or after turning on the ignition using the key;
• Locking all door locks when turning the key in the driver's door lock;
• Unlocking and locking all doors by pressing the control button inside the car;
• Turning on a sound and light signal when the state of the protected zones of the vehicle changes;
• Remote locking/unlocking of door locks with simultaneous activation/deactivation of vehicle protection mode.

The anti-theft system requires the connection of an additional sensor, which is recommended by the manufacturer of the Lada Priora.

When the vehicle protection mode is operating, the following zones are monitored:

• Hood;
• Car doors;
• Driver's door lock;
• Luggage compartment lid;
• Egnition lock;
• Battery voltage.

Alarm Lada Priora

The standard anti-theft system includes an alarm in the following cases:

• Unlocking the driver's door;
• Opening car doors, trunk lid or hood;
• Reaction of additional sensor;
• Turning on the ignition using a foreign key;
• Connecting the battery after disconnecting it.

The standard alarm, which is installed by the factory manufacturer of the Priora car, must be triggered when a certain key is pressed on the remote control key, which is equipped with a remote control and sends a signal to the main APS-6 unit, which issues a command to open and close the car doors. This happens only after activating the remote control using a training code key from the immobilizer.

The most common reason for the cessation of functioning of the standard anti-theft system of the Lada Priora is the remote control, or as it is abbreviated as the remote control, which is located on the ignition key.

Sometimes, in order for the anti-theft system to work, you need to press the button several times. If, after pressing the key several times, it still works, then the reason for its malfunction may be an increase in the distance between the electrical board and the button. The distance may increase due to slight sagging of the electronic board located in the remote control. This problem can be corrected by using a thin dielectric plate, placing it under the electrical board to bring the board closer to the remote control buttons. Also, the cause of a key malfunction can be the presence of small microcracks in the electronic board, and this leads to a complete malfunction of the electrical circuit. In this case, the only solution is to replace the board.

Alarm connection points

Typically, installing an alarm system on a Lada Priora car raises a question among car owners: Where are the alarm connection points on the Priora? There are a large number of alarm connection points on a Lada Priora car, but there is no need to be afraid of this. The convenience of connection lies in the fact that almost all alarm connection points are located in the electronic package controller. It is from the electronic package controller that the main wiring is taken out and the limit switches are connected. Alarm connection points can be located not only here.

Connecting the Lada Priora alarm system

So let's look at the most common alarm connection points on Priora:

• Hood end cap – white/black on the block to the right of the gas pedal in the middle connector;
• Ignition - orange on the block to the right of the gas pedal in the middle connector;
• Opening the luggage compartment - blue/red on the block to the right of the gas pedal in a small connector;
• Door limit switch - white/black on the block to the right of the gas pedal in a small connector;
• The luggage compartment limit switch is yellow/red on the block to the right of the gas pedal in a small connector;
• Original siren – gray/black on the front block;
• Central locking - cut the brown wire in the driver's door and hook it up according to the diagram indicated in the alarm instructions.

Alarm installation

So, how does the independent installation of an alarm on a Priora proceed and what will be needed for this?

Required tools and materials:

• Plastic clamps (15 pieces, 200 mm each);
• Soldering iron 60W;
• Phillips screwdriver PH2;
• Slotted screwdriver v5;
• Screwdriver TORX T20;
• Socket wrench (10 mm);
• Insulating tape;
• Side cutters;
• Diodes 1N4007 (5 pieces);
• Corrugated tube (3 meters);
• Solder POS60;
• Conductor for pulling wiring;
• Five-pin relay with socket and protective diode (3 pieces).

Connecting an alarm system to the central locking system of Lada Priora

How to install the StarLineA91 DialogBP03 alarm system correctly on a Lada Priora car?

• Unscrew the five self-tapping screws and two screws securing the steering shaft trim and remove it;
• Unscrew the four self-tapping screws securing the instrument panel trim and the two self-tapping screws under it;
• Remove under apron;
• Remove the side trims of the central tunnel on the right and left;
• Unscrew the two M6 nuts and remove the glass unit control unit;
• Install an LED in the left windshield pillar;
• Install the shock sensor on the body bracket;
• Install the service key in a random location;
• Glue the antenna behind the dashboard or on the windshield;
• Install a siren under the hood;
• We lay the wires into the car interior through the standard seal in the center of the engine shield;
• Hide the alarm block above the left air duct;
• Connect the alarm ground wire;
• Connect the engine and parking brake control in the instrument panel harness (according to the diagram specified in the alarm instructions);
• We make more connections on the BUS;
• We connect the limit switches of the doors, luggage compartment and low-current trunk guide in connector X3;
• Connect the central locking control in the driver's door switch block. To open all doors, connect in connector X1;
• We connect the turn signals in connector X1;
• We connect the power window control module to the break in the power wires in connector X1;
• We connect the ignition, starter and alarm power in the lock harness;
• We connect the standard immobilizer bypass module into the gap of any of the two wires of the standard frame in connector X2;
• Set up the shock sensor and program the engine starting parameters;
• The installation of the alarm is completed, and the interior assembly is carried out in the reverse order.

Review of the standard alarm system on Priora

Cars from the Volzhsky Automobile Plant usually belong to the risk group of cars, theft of which is quite possible. This statement was equally correct for the “classical” models, and it is also correct at the moment.

Key fob and its functions

The control key fob is an ergonomic, 3-button chip key without an display panel. It does not have the ability to provide interactive support for the basic alarm control functions. The main task of the key fob is to reliably transmit a control signal without monitoring its execution. Functionally it looks like this:

• there are 3 control buttons on the key fob; right, front control button of key fob No. 1 – unlocking the Lada Priora car alarm;
• left, front control button of key fob No. 2 – unlocking the hood or trunk;
• central, rear control button of key fob No. 3 – activation of the car security function;

Important: if, when you press the key fob buttons, the indicator LED does not light up or flashes twice, its CR2032 battery must be replaced.

Alarm characteristics

After modernization, the Lada Priora received a device that plays the role of a basic alarm system and received the usual name for such devices - an immobilizer. An immobilizer (from the Latin to paralyze) is a device that, interacting with the electrical control unit, allows you to shut down the operation of the engine and provides unhindered access to the car and its systems.

By its very nature, the immobilizer security device presents itself in such a situation as a breaker of the electronic circuit that powers the car. And the driver, who has an active key with a microchip built into it, activates (turns on) or disconnects the power supply chain if necessary.

At the same time, installing the key in the ignition switch socket is not a connecting link, but only allows you to send a signal to the necessary electrical sensor so that the necessary devices do their job. Structurally, the immobilizer protective device consists of several blocks that are connected into a single mechanism:

How much does it cost to turn off the alarm system?

Cost of alarm deactivation and additional services

Tariffs for disabling alarms and additional services depend on the brand of alarm and factors associated with the breakdown.

Alarm activation

In order to activate the standard alarm, you will need a training and master key, which must be issued when purchasing the car. Be sure to pay attention to this, or in the future you will have to contact the dealer separately. You will need to carry out the following actions in the prescribed manner:

1. Fill the fuel tank (at least 10 l). This action must be performed so as not to get confused in the signals supplied by the immobilizer and to carry out the sequence of operations in strict accordance with the algorithm.
2. First of all, you need to use the learning key, which is inserted into the ignition switch. The ignition must be turned on for a certain time (about 6 seconds), and all doors in the car must be tightly closed. Correct actions can be monitored by a rapidly flashing (about 5 times per second) indicator lamp. After this, you can turn off the ignition and remove the learning key from the lock.

Important points for connecting the immobilizer

1. Immediately after removing the training key, you need to quickly (until the warning light goes out) insert the main working key and turn on the ignition again. Three signals will confirm the correctness of your actions. But you need to wait for the next two signals after a certain time, after which you can turn off the ignition and remove the key.
2. The key must remain in the lock. Confirmation of the correctness of the actions will be another, this time a single signal with a rapid blinking of the immobilizer warning lamp.
3. Now the ignition is turned on briefly (for 2-3 seconds), and after turning it off, you need to wait for the sound signal to sound three times, and the warning lamp stops blinking. Before starting the engine, you need to take a long pause (at least 10 seconds).

Lada Priora: We will reprogram the standard alarm system

Some tricks of the Lada Priora

(Granta, Kalina, etc.). 1) Turn on the heated mirrors 2) Reprogram.

Disabling any alarm

Here's a simple way to turn it off

almost any
alarm
.

At this point, immobilizer training can be considered complete. The alarm installation for the Priora may not be done correctly, or another malfunction of the security system may occur as a result of which the car engine will not be able to start. Such a failure can be monitored as follows:

1. We turn on the ignition with the working key and after a while (usually 5-6 seconds) we visually check the warning lamp. If it blinks once per second, this mode indicates an error condition. It is enough to turn on the ignition again after 10-15 seconds for the device to resynchronize.
2. If the error is detected again and in a situation where the light is constantly on, the entire procedure for learning the standard alarm is carried out again.

Keep the special training key, as it may be required if it is necessary to retrain the immobilizer, or if a copy of the key is made. Cases when you have to make and use a new working key are not that rare. The technical capabilities of the protective device can be significantly expanded in practice. Often, Priora owners take advantage of additional features such as:

• delay in turning off the interior lamp;
• remote activation of the rear fog lamp;
• a “forgetful” driver signal that will remind you if the driver left the key in the lock when leaving the car;
• Reminder that external lights are not turned off.

How to turn off the standard alarm?

The main reason when it is necessary to disable the standard alarm on a Priora is its malfunction. In such situations, the car unreasonably reacts by turning on the sound signal and prevents the engine from starting. Such a failure in winter conditions poses additional inconvenience. The immobilizer is not only an additional constant consumer of energy, but may simply refuse to work normally in severe frost.

At the first sign of incorrect operation, you should check the serviceability of the alarm control unit on the key fob. Perhaps the poor response to the signal from the key fob is due to a dead battery or the presence of radio interference in a certain place. In such situations, the control unit will only be able to receive a very close signal.

The inability to turn off the standard alarm system on a Priora from the key fob is not an obstacle to turning it off. In this case, you need to use a secret button, which, as a rule, is installed in the cabin or next to the control unit . Check this point when purchasing a car or at the station where the alarm was installed on the car. disable the standard alarm system on the Priora by first turning on the ignition. You will need to enter a secret code (PIN code), which must be known to each owner.

After turning off the alarm, you will also need to turn off its power. A possible malfunction may be a low battery charge level, as well as a very high current consumption by the immobilizer if it is damaged.

Starting the engine, bypassing the working unit of the standard alarm, is done by connecting power wires, bypassing the device relay. However, if you are not sure that the wires have been identified correctly, then you should contact a specialist.

Principles of disabling car alarms

The car alarm can be turned off in two ways. To disable the standard alarm, it is recommended to use the factory method. To disable it, use the “Valet” service button. This is only possible if you know where it is located, located in secluded but accessible places:

• Directly at the gas or clutch pedals;
• In the area of ​​the fuse box;
• In the niches of the steering column;
• In accessible places on the front panels.

If it is impossible to identify the button in the indicated places to turn off the car alarm, experts advise referring to the instructions. For alarm management, this information is key and must be contained. To disable, use a combination of simultaneously pressing the buttons and one of the pedals or two.

If you fail to turn off the car alarm after several attempts, it may become blocked. The recommended time for holding the alarm button with the pedal pressed should be at least 10 seconds.

The next technique is a coded shutdown, without using a car alarm key fob. Modern devices use button and ignition combinations. Disabling steps can be done manually using several techniques. Details on how to turn off the machine alarm are described in the attached instructions for setup and operation.

This option uses a PIN code that is programmed in advance. The combination of symbols is known exclusively to the car owner. The PIN code is programmed with the ignition on and successive pressing of the emergency button. The number of times the button is pressed corresponds to the first or second character of the code.

When setting a PIN code for car alarms with your own hands, the maximum code value of 4 digits is allowed - 9999. In standard alarm systems supplied by manufacturers, the PIN code is not complicated. It is not difficult to disable the car security system. Therefore, experts recommend reprogramming the code using a much more complex combination of symbols. Linking to memorable dates is not recommended.

There are alternative options to disable the car alarm. One of them is the use of original software. In another, special crawlers are used to disable the alarm.