The immobilizer on the Prior lights up

In general, the essence of the question is, what to do next? I’m standing at the store The car has a Satraline A91 alarm installed (now it doesn’t react to anything at all) The immobilizer is activated, now the icon is on all the time, when you insert the key, it dims a little, doesn’t react to anything (neither the starter, nor the fuel pump, nor the open/close button trunk) I use the black key (or rather, when I left the store I pressed and opened the trunk) the red key is in the lineman... Now I’ll try to get the lineman and the chip too

That's it guys...I'll probably never cease to be amazed at his stupidity...I can't really describe it without a swear word

The designs of domestic Lada Priora cars are equipped with special standard anti-theft devices. If such devices do not work correctly, owners are forced to look for ways to disable the immobilizer on Priora.

The principle of operation of the immobilizer in Priora

How to activate the immobilizer?

What is an immobilizer for?

How to disable the immobilizer

Comments and Reviews

The principle of operation of the immobilizer in Priora

The anti-theft immobilizer allows you to start the engine only after recognizing the key installed in the ignition switch.

The operating principle of such a device looks like this:

There is a special identification chip in the head of the key.
The signal from this chip is sensed by a ring antenna made of many turns of thin copper wire.
The antenna is located around the ignition switch cylinder.
The read signal is transmitted to the control unit, which compares it with the reference one and activates or prohibits starting the engine.
The immobilizer unit is connected via the K-Line bus to the fuel pump control unit, engine ECU and ignition system.
If the key is not recognized, these systems are blocked. In this case, the crankshaft may be cranked by the starter, and the immobilizer system warning icon will light up on the instrument cluster.

IMMOBILIZER? IMMOBILIZER GLUE? STARTER DOESN'T TURN, PETROL PUMP DOESN'T PUMP, VAZ, LADA

The learning process itself is written in the instructions, but, as often happens, desires are far from reality. There are some peculiarities in this process and they should be taken into account when starting the immobilizer for the first time. BI BSK VAZ (VAZ on-board control system display unit) VAZ 2114 2113 2115 display panel and display unit. IS THE IMMOBILIZER ACTIVATED OR IS THE IMMOBILIZER GLUCCH? THE CAR WILL NOT START, THE FUEL PUMP WILL NOT PUMP FUEL, THE STARTER WILL NOT Crank. VAZ 2110, 2111, 2112, VAZ 2114, 2115 LADA, etc.

How to activate the immobilizer?

Before starting use, it is recommended to activate the immobilizer.

In order to do this, you must follow these instructions:

Take both standard keys, get behind the wheel and close the door behind you.
Insert the key with the red mark (training) into the lock and turn on the ignition.
After six seconds, turn off the ignition system. The indicator lamp in the instrument cluster will flash approximately 5 times per second, which is a sign of a normal learning process. If this does not happen, there may be problems with the immobilizer system or faulty components.
While the warning light is flashing, you must remove the red key, insert a regular key into the lock and activate the ignition. This procedure should be completed within six seconds. The buzzer will confirm that the training has been completed correctly with three short beeps.
Wait another six seconds, after which the buzzer should sound two additional signals. If this does not happen and the warning light stops flashing rapidly, then the learning process has failed and should be started again. If re-learning is also unsuccessful, then you should look for a malfunction in the system or key, which could have been previously trained for a different immobilizer.
If training is successful, turn off the ignition. If it is necessary to train additional keys, then such actions are performed with each one.
If you do not need to register additional keys, then immediately after the sound signals you must turn off the ignition and remove the regular key and replace it with a red one.
Turn on the ignition and receive confirmation in the form of three beeps with the buzzer.
In six seconds, two more signals should pass. After this, you can turn off the ignition, but do not remove the key from the lock.
Six seconds after turning off the ignition circuits, the buzzer should sound once and the flashing frequency of the lamp should increase.
After this, turn on the ignition (within 5...6 seconds) using the red key and turn it off after three seconds.
After a few seconds, the buzzer should sound (three beeps) and the lamp on the instrument cluster should go out. The ignition can be turned on again no earlier than after 10 seconds. When using some controllers, sound signals may appear immediately when the ignition is turned off.

Hooray! Immobilizer disabled! Now I start the car with a key without a chip

You take out the key, the immobilizer blinks, it blinks constantly. When they installed the alarm in the cabin, they said that the immobilizer was turned off. Has anyone encountered this problem or has any advice? This video is just my emotions from the joy of the moment, I have long wanted to do this, and finally it happened, the built-in immo has been put to sleep _))))) It’s no secret that for many owners of the domestic Lada, be it ten, Kalina or Priora, the built-in immo is pure evil , and indeed, this thing won’t save you from modern car thieves, but it will add trouble to its owner. Just imagine, you went on vacation to the seaside, and suddenly your car refuses to start, what should you do? Should I wait until they send me a spare chip key by mail?

What is an immobilizer for?

In addition to protecting the car from theft, the immobilizer performs a number of additional functions:

the ability to control the delay for turning off the interior lighting;
control of the rear fog lamp;
checking the presence of the key in the ignition when opening the doors and giving a warning signal to the driver (one buzzer flashes in the instrument cluster);
signaling that the external lighting is not turned off when the ignition is turned off (double buzzer signal).

Positive sides

The positive characteristics of using a standard immobilizer include:

inability to start the car engine by turning the ignition lock cylinder or using a key without a chip;
the ability to control the central locking using the standard key;
when using a standard alarm system, it works in conjunction with the immobilizer, which provides additional protection;
implementation of additional comfort functions;
possibility of diagnosing the unit using a scanner.

Negative sides

The disadvantages of an immobilizer usually include the following points:

The main disadvantage of the device is its unreliability. Quite often there are key failures, as a result of which the unit does not see the chip. This drawback forces owners to carry with them a second key from the set (with a red mark).
The complexity of the training scheme and the risk of errors in the process.
It is impossible to ensure automatic engine start without installing a bypass device or completely disabling the immobilizer.
If the standard control unit is faulty, it is impossible to disable it yourself.

Unlock process

When the immobilizer is active, the ignition must be turned on. At the same time, the immobilizer lamp on the instrument panel will begin to blink, indicating that the immobilizer has blocked the engine from starting. What to do next? Press and hold the gas pedal, after which the lamp will stop flashing.

Now we need to enter the code using the on-board computer button. To do this, the button must be pressed in an amount equal to the first digit of the code. Let's release the gas pedal, the light will start flashing again. The action described above must be carried out for all numbers.

Once all the code has been entered, the lamp will remain on all the time. This is a good sign that the engine is unlocked and can now be started. There is no need to be surprised if, after pressing the button on the key with the transmitter, the immobilizer blocked the engine from starting on the Prior. What to do in this case? It's okay, it's okay.

If you enter the wrong code three times in a row, the next attempts are possible only after 15 minutes. To configure other keys, you need to unlock the immobilizer. His light should not be on. Then you need to turn the ignition on and off, quickly press the central locking control button. The doors will close and open again (or vice versa). The immobilizer light will come on. Within the next 15 seconds you need to do the following:

Point the IR key at the signal receiver and press the key button 2 times with an interval of one and a half seconds. The doors should open and close.
Now we need to carry out similar actions with the keys that we want to program for the current immobilizer.

All actions need to be carried out only once for each linked key. Note that this is a generalized process. If the immobilizer has blocked the engine of a Nissan Almera or another car from starting, then perhaps unlocking and binding the keys is carried out a little differently. In any case, information about this is in the instructions.

How to disable the immobilizer

If the immobilizer breaks down or malfunctions, the car owner is faced with a choice: replace the control unit or disable the system. A more rational solution, from a security point of view, would be to purchase a new control unit and keys, but there is no guarantee that this unit will last long. Another solution would be to deactivate the system. To disable the immobilizer unit, several methods are used that will require the performer to have knowledge in electronics. If you do not have such skills, then it is wiser to take the car to a service center, where the unit will be turned off by qualified specialists.

Using a crawler

A bypass device is often used when installing alarm systems with auto start. The operating principle of such a device is based on the use of a separate unit with a standard key or chip installed inside. The unit is located in the car interior under the plastic trim of the pillars or in the instrument panel.

The signal from the key or chip is read by the unit's antenna and transmitted to the ignition switch. The crawler is controlled using a separate relay. If necessary, the crawler can be set to permanently exclude the immobilizer from the circuit. The car can be started with a key without a chip, but data will be supplied to the immobilizer from the bypass device control unit.

Malfunctions and their elimination

One of the problems of APS Priora is the implementation of a data exchange mechanism between the immobilizer and the vehicle's ECM via a diagnostic line. In this case, malfunctions occur in the system - the immobilizer signal lights up on the instrument panel and the engine does not start.

The code in the immobilizer may go wrong:

from connecting diagnostic equipment;
from the appearance of induced currents from the cell phone transmitter,
from voltage surges in the vehicle's on-board network.
from zero charge in the battery.

In the latest Priora models, an emergency shutdown procedure for the anti-theft system has been implemented. It is necessary to activate this function and register a password in the ECU. Then, if an emergency situation occurs with the APS, you can, by manipulating the gas pedal according to the factory instructions, start the car, ignoring the immobilizer blocking.

Characteristics of the immobilizer on Priora

Immo on VAZ cars is a device that activates the power unit locking system in the event of a car break-in. The presence of a lock allows you to start the engine only after recognizing the key installed in the lock.

Where is the immobilizer located in Lada Priora?

The location of the standard anti-theft device is indicated in the service documentation for the car. The bottom line is that the manufacturer AvtoVAZ can install the main control unit of the device in various places. Typically, the microprocessor module is mounted in a free compartment behind the car radio, slightly lower from the central part of the dashboard. The engine ECU is located next to the immobilizer control unit.

User Igor Bakhirev spoke about the location, as well as malfunctions in the operation of the internal combustion engine blocker in Lada Priora cars.

Operating principle

Briefly about the principle of operation of the device for activating the engine lock:

An identified transponder is located in the main part of the ignition key.
The pulse signal coming from the key is read through a ring antenna. The latter is made of a large number of turns of thin copper wire. This element is located around the ignition switch cylinder.
As a result of reading, a pulse is sent to the control module. The latter compares the signal with the normalized one and gives a command to allow or prohibit the start of the internal combustion engine.
The K-Lin interface is used to transmit commands. This allows you to connect the microprocessor module with the engine control unit, fuel pump, and ignition system.

The operation of the device is based on data exchange with the control module. The Priora model and the year of its manufacture do not matter. This node, receiving and reading information, gives permission or prohibits starting the power unit.

If the anti-theft agent does not recognize the tag, then when the power unit starts, the immobilizer will block its operation by opening the electrical circuit of the fuel pump. The ignition system will also turn off, due to which the starter mechanism will not be able to crank the crankshaft. An icon on the control panel of the car will light up, indicating problems in the operation of the blocker.

As a result of the fact that data exchange is carried out via the K-Line bus, problems and errors may occur in the operation of the immobilizer due to interference from mobile devices.

Auto electrician Sergei Zaitsev spoke in detail about the principle of operation of the internal combustion engine blocker, as well as its varieties and design.

Why does the immobilizer not see the car key?

Understanding the principle of its operation will help you understand why the immobilizer does not see the key. A working security system unit makes contact with the key, reads the unique code and compares it with the one stored in memory. When it is not possible to read the code or it does not correspond to what is written in the block, the immobilizer blocks the engine from starting.

The main reasons why the immobilizer does not see the original key, and ways to solve them, are collected in the table.

Problems	Cause of occurrence	What to do?
Malfunctions in the power supply of the engine control unit	Low battery charge	Charge or replace the battery
	Broken wiring	Detect and repair the break
	Fuse blown	Inspect fuses, test circuits for short circuits, replace blown fuses
	ECU contacts are bent, loose or oxidized	Inspect the ECU connectors, align and/or clean the contacts
Firmware failure	Damage to controller software files	Reflash the ECU, register the keys or remove the immobilizer
Firmware failure	Control unit memory failure	Repair (resolder the flash and flash the unit) or replace the ECU, register the keys or repair the immobilizer
Physical chip failure and magnetic irradiation	Shocks, overheating, getting the key wet	Start the car with a different key, buy and register a new key
Physical chip failure and magnetic irradiation	Irradiation of a key by an EMR source	Remove the radiation source, start with a different key, replace and register a new key
Drop in battery charge level	Leaving the car with electrical appliances running will cause extreme wear and tear on the battery	Charge the battery or replace it with a new one
Poor antenna-receiver contact	Damage or oxidation of contacts	Inspect the wiring, clean the terminals, restore contacts
Poor antenna-receiver contact	Antenna failure	Replace antenna
Lost communication between immobilizer and ECU	Poor contact, oxidation of connectors	Ring the wiring, clean the contacts, restore integrity
Lost communication between immobilizer and ECU	Failure of the immo block or ECU	Diagnose units, replace faulty ones, flash keys or reset immobilizer function
Malfunction in the power supply circuits of the immobilizer unit	Broken wires, oxidation of connectors	Check wiring, restore integrity, clean connectors
The immobilizer does not recognize the key in cold weather	Low battery	Charge or replace the battery
	The immo bypass unit in the security system with auto start is faulty	Check the immobilizer bypass, the chip installed in it, and the bypass antennas
	Freezing of electronic components	Warm up the key
The battery in the active key is discharged	Battery life expired	Replace battery
The immobilizer bypass unit does not work or does not work correctly	Bypass block failure	Repair or repair the bypass block
	Label offset in the crawler	Correct the label

If the immobilizer does not see the key well, the reasons are most often poor contact, mechanical damage to the block or chip, or low supply voltage. You need to pay attention to the problems listed above when your car displays an immobilizer error after an accident.

Software disabling the immobilizer from the ECU

Situations where the immobilizer does not always see the key due to the firmware are rare. Usually, if software fails, it fails irrevocably. The malfunction can be resolved by rebinding the key or software disabling the immobilizer.

Owners of Ford, Toyota, Lexus, Mitsubishi, SsangYong, Haval and many others equipped with a non-standard alarm with auto start in the presence of a lineman may encounter cases when, when cold weather sets in, the immobilizer does not see the key. Therefore, you need to start troubleshooting in the bypass block. If the tag is equipped with its own battery, you need to check its charge level, as it quickly drops in the cold.

To avoid problems with the immobilizer, it is recommended to take the following precautions:

do not disassemble the key, immobilizer and ECU;
do not throw the keys, do not get them wet or expose them to electromagnetic waves;
use high-quality bypass units when installing non-standard alarm systems with auto-start;
when buying a used car, ask the owner for all the keys, a piece of paper with the immobilizer code written down for flashing new ones, and also clarify information about the features of the installed alarm (its model, availability of immo bypass, location of the service button, etc.).

What to do if the immobilizer stops working?

If the device does not work, the lamp on the dashboard flashes and the ECU does not see the blocker, the cause of the malfunction may be oxidation of the contacts on the connector.

The problem is solved like this:

The bolts installed under the steering column in the car's interior are loosening.
Using flat pullers, the column protective casing is divided into two parts.
Next, the plug should be disconnected from the immobilizer, but first you need to remove the connector from the guides. To do this, you need to apply a little pressure on the block. Then the car owner presses the opened latch and disconnects the connector. The second part of it will remain under the plastic lining of the panel.
Using a screwdriver with a thin tip or a sewing coal with a large eye, clean the oxidized contact elements.
To avoid such problems, the plug is treated with copper grease. Moreover, both pads are cleaned. Copper grease ensures high-quality conductivity and high anti-corrosion characteristics. The substance is applied using a screwdriver or needle.
The two parts of the connector are then connected to each other. The correct operation of the immo is diagnosed. If the device is functioning, all components are assembled.

If cleaning does not help, then the immo problem may lie in the operation of the chip resistor.

To replace a part with your own hands, do the following:

The locking device is being removed from the vehicle. To carry out the task, the side covers on the console inside the car are removed. The controller clamps are unscrewed, as well as the terminal clamps that are screwed to the microprocessor module.
The control devices are disassembled for soldering a working resistor chip. To carry out the task, a PC is connected to the microprocessor module via a special cable. The program for reading the software is launched, the firmware file is saved into the computer memory. In particular, we are talking about FLASH and EEPROM. The chip resistor itself is soldered from the main board of the device.
New firmware is installed in the control unit.
A new resistor chip is soldered. Before connecting the power unit blocking control module, the immo is disabled. This will prevent its possible activation during installation. The module contacts are used to disconnect. First of all, the 12-output plug is disconnected.
Conductors numbered 9 and 18 are disconnected from the block and shorted with each other. After this, the blocks are connected to the control unit, then the device is mounted in the installation location.

The Immobox channel talked about self-diagnosis of anti-theft locking devices in Priors and other cars.

FakeHeader

Comments 18

When you "reboot" your industry, the keys must and should learn smoothly. Why was the eeprom reset during the firmware update?

The principle is the following. The ECU contains FLASH and EEPROM. If they want to improve (change) the performance of the engine, they change the Flash. If they want to turn off immo or register new keys, or if it costs something else, they overwrite the EEPROM. But if the ECU is a replacement and the firmware is pre-installed into it, which is radically different from the required one, for example, the firmware and the car differ in the presence (absence) of a CAN bus, or the ECU from a UAZ is installed on a Prioress (or vice versa), so . so yes ! Only in these cases are both the firmware and eeprom overwritten

I have a slightly different problem: I have never had problems on the go. And when I start it, sometimes it doesn’t start—the starter spins, but to no avail. I look at the flashing yellow car... For the first time I can’t understand that we’re not starting. Now I just turn off the ignition, take out the key (you can also lock and unlock the doors with the key), after which the ignition is not a problem. This happens about 1 time out of 20. A problem, of course. But while I'm driving, that's why there's no red key, that's why I'm driving

Projects for domestic Lada Priora cars include special standard anti-theft devices. If such devices do not work properly, owners are forced to look for ways to disable the immobilizer on Priora.

The principle of operation of the immobilizer in Priora

How to activate the immobilizer?

What is an immobilizer for?

How to disable the immobilizer

Comments and reviews

Instructions for activating the immobilizer

The process of activating the immobilizer on a Priora is carried out in a car with the door locks locked.

Activation is done like this:

The training key is installed in the switch and the ignition is turned on. You must wait at least six seconds and then turn it off.
When the actions are performed correctly, the indicator light blinks on the dashboard throughout the entire time it is turned on. If it goes out, then an error was made during the task. The immobilizer may be faulty or the time interval has been violated. The LED indicator on the device indicates that the switch is turned on correctly.
During the period of time while the light is blinking, it is necessary to activate the ignition using the working key. The sound beepper will start beeping. If this does not happen, there was an error in the process.
After playing three sound pulses, you must wait about six seconds. The beepper will then beep two more times. If they are absent, the blocking agent is diagnosed for malfunctions. The microprocessor module may have been trained using a different key.
After two beeps, you need to turn off the ignition system. If the car owner plans to register not one, but several keys, then the activation procedure is repeated for each.
If the indicator light on the instrument panel blinks, the control element is removed from the switch. Then the training key is installed in it again, and the ignition is activated. If there are no errors, the beeper will emit a triple beep, indicating that the blocker has been successfully activated. The ignition does not turn off, and after six seconds the beepper will again emit a double beep.
The key in the lock turns counterclockwise. After turning off the ignition, you must wait six seconds, this will trigger the beepper. The indicator light on the instrument will blink more frequently. If an error was made during the process, all steps are repeated again.
While the light on the control panel is flashing at a high frequency, the ignition is activated with the learning key. After 2-3 seconds. it needs to be turned off. After another five seconds, the indicator will stop blinking and the beeper will play a triple pulse.
Then the ignition turns off and does not need to be activated for at least 10 seconds. The alarm will be activated, as well as the emergency indicator. This completes the training procedure.

other methods

If the immobilizer has blocked the engine of a Grant or other cars from starting, you can contact a service station, where they can either turn it off completely or install a lineman. The latter can apply voltage to certain terminals and thereby close the necessary contacts. Such a device deceives the ECU, and the engine starts successfully.

Professional technicians can interfere with the operation of the electronics by disconnecting the immobilizer itself from the car’s electronics. But if you do this yourself, you can harm the entire system.

Disabling the immobilizer without a crawler yourself

Depending on the unit model, reprogramming the ECM may require changing the installation diagram of the component elements. Such devices include M73 microprocessor modules from the manufacturer Avtel. Before performing the task, it is necessary to remove the microprocessor from the seat and connect the K-Lin adapter to it.

To remove the immo, you will need an adapter wiring harness; you will have to make it yourself.

When the transition harness is ready, perform the following steps:

The OpenBox program is installed on a PC or laptop. The utility is freely available. After downloading it, the software is launched; at the first stage, the car owner needs to read the standard EEPROM firmware. Factory software information is stored separately. It may be required to perform modifications or if it is necessary to roll back to its original state.
Then the HxD file editor is loaded. The downloaded firmware opens on the computer.
At the beginning of the opened text, a line is added that consists of two FF characters. Changes to the firmware are saved.
Then the edited file must be loaded into the memory of the microprocessor module. To perform this task, it is allowed to use ready-made versions of untrained firmware. They can be found in the public domain on the Internet.
The microprocessor module is disconnected and the device is installed back.

If the car is equipped with a January 7.2 block, then to deactivate it, use the diagram shown in the photo in the gallery. It is assembled on the basis of the K-Lin adapter. A positive contact switch must be added to the circuit; it will be used as an ignition switch.

The Bureau of Technical Solutions channel talked about disabling the engine blocking device yourself.

After this, the following steps are performed:

ChipLoader software is installed on a PC or laptop. The program version must be 1.97.7 or higher.
The utility is launched and the required type of microprocessor is selected in the window that opens.
Then you need to connect to the module; to do this, use the “Establish connection” option.
Information is being read from the EEPROM board.
In the program window, press the “Delete immo” button. As a result, the utility will automatically adjust the information written to the file.
The program closes. The microprocessor module can be disconnected from the computer and installed back on the car.

In M74 models, the procedure for deactivating the blocker is performed differently:

The battery is disconnected from the car; first, the clamp on the negative terminal must be loosened with a wrench.
The connector is disconnected from the immobilizer control unit.
A homemade harness is connected, which is made according to the diagram. It should use a double switch, since with its help the voltage can be supplied to the device in stages.
The assembled circuit is connected to the battery via a VAG-COM cable.
The first button on the switching device is activated. With its help, a pulse is sent that allows programming of the block. The WinFlashECU utility starts on the PC. In the settings window that opens, you must specify the type of microprocessor module, as well as the information transfer speed. It is recommended to select the last parameter as minimal.
The second button is activated. Then a message will appear in the window that opens indicating that communication with the module has been established.
The standard software of the control unit is saved. Then this file must be replaced with a new one. The total time to complete the task will take no more than a few minutes.
When the firmware is completed, the program is disabled. The power and wiring must be disconnected from the device.
Then the engine blocker control unit is again connected to the machine’s electrical network. When carrying out this task, it may be necessary to adapt the zero position of the throttle valve. To do this, start the engine and make a test drive. When the speed increases to four thousand per minute, the power unit brakes. In this case, second gear must be engaged.

Photo gallery

Bypass immo using crawler

You can bypass the engine blocker by breaking the conductors. To complete the task, you will need to dismantle the protective cover on the steering column, which is secured with two self-tapping screws.

After this, the following is done:

There are two thin cables going to the ignition switch; either of them (green or white insulation) must be cut.
Then you need to connect a two-wire loop from the break point to the bypass module.
This element is connected instead of an inductive loop. Then the chip is installed. It is installed in the standard key. The lineman is connected to the anti-theft installation.

If it is necessary to disable the security system, the loop contacts must be closed. The use of special Starline bypass modules is allowed. The device model VR-03 can function with any anti-theft systems.