Immobilizer blocked the engine start: what to do? How to disable the immobilizer in the car bypassing yourself?
Immobilizers are in almost everymodern car. The purpose of this device is to protect the car from theft, which is achieved by blocking the electrical circuits of the systems (fuel, ignition, starter, etc.). But there are unpleasant situations in which the immobilizer has blocked the engine start. What to do in this case? About this and talk.
What is it, an immobilizer?
Than this device differs from the usual securitysystem? First of all, the fact that the degree of protection of the car significantly increases with its use. This device has a complex intelligent system that allows you to control the mechanism only from a close distance, and not remotely, as in the case of conventional signaling. This means that at the time of opening the door, intruders do not have the ability to intercept a signal that comes from the key fob of the device. To intercept it, you need to be directly in the car.
Note that the owners of cars with alarm,which are serviced in questionable workshops, may be at risk. The fact is that making a copy from the alarm transmitter is easy enough and does not take much time. And to steal a car with an existing copy of the key fob is simple. But as for the immobilizer, it is difficult to make a copy of it, because the attackers usually do not have a master card.
Modern security immobilizers are famouscompactness. Their installation is carried out in hidden places. And if you properly install the immobilizer, then determine its type and location is almost impossible. But that's not all. In some types of devices there is a function of protection against robbery, which does not even require the participation of the owner.
Elements of the immobilizer construction
How to understand why the immobilizer blocked the engine start? What to do in this case? First, you need to understand how it works and determine its main constructive elements.
The main component of the immobilizer iselectronic control unit. Its functionality is provided by the chip, which is stitched under a specific program of actions. The chip contains a special exchange code, which is used when "polling" the car key. Also inside there is a coil that reads information from the key.
The second important element is the executiveA mechanism that contains several electromagnetic relays. As soon as the electronic unit issues a command, the switching mechanisms break the chains of signals that arrive at the important elements of the car. If desired, you can connect an additional electromagnetic system that will block non-electrical devices.
The third element is the transponder, whichis a programmed chip. It is in each key, which is inserted into the ignition lock. This transponder transmits to the car system a unique code, upon recognition of which the control unit gives permission or refuses to start the engine.
The immobilizer blocked the engine start. What to do?
There are several ways to unlock the immobilizer: the central locking button and using the IR transmitter.
If the immobilizer blocked the car, thenunlocking using the IR transmitter is suitable for cars in which the key with the IR transmitter controls the central lock and immobilizer. To disable the immobilizer, a code (4 digits) is required. It is entered when the accelerator pedal and the onboard computer control button are pressed. Usually this button is located on the end of the glass cleaner switch.
With an active immobilizer, you must turn on theignition. At the same time, the immobilizer lamp on the instrument panel will flash, indicating that the immobilizer has blocked the engine starting. What to do next? Press and hold the gas pedal, after which the lamp stops flashing.
Now we need to enter the code using the buttonthe on-board computer. To do this, press the button in the amount equal to the first digit of the code. Let's release the gas pedal, the bulb will start flashing again. The above action must be carried out for all digits.
After all the code is entered, the lamp will beburn all the time. This is a good sign, indicating that the engine is unlocked, and now it can be started. Do not be surprised if after pressing the button on the key with the transmitter the immobilizer blocked the engine start on the Prior. What to do in this case? Nothing, this is normal.
If you enter the wrong code three times in a row, thenthe following attempts are possible only after 15 minutes. To configure other keys, you need to unlock the immobilizer. Its light should not burn. Then you need to turn the ignition on and off, quickly press the central locking button. Doors will close and open again (or vice versa). At the same time, the immobilizer lamp will light up. For the next 15 seconds, you need to:
- We direct the IR-key to the signal receiver and press the key button twice with an interval of one and a half seconds. Doors must open to close.
- Now we need to conduct similar actions with the keys that we want to program under the current immobilizer.
All actions need to be done only once foreach tied key. Note that this is a generalized process. If the immobilizer has blocked the engine "Nissan Almera" or another car, it is possible that unlocking and binding of keys are performed a little differently. In any case, information about this is in the manual.
Unlock with the central locking button
Often at forums owners write that on "Lada Kalina" immobilizer blocked the engine start. What to do and how to unlock it? The introduction of an emergency code usually helps. For this you need:
- Switch off ignition. The light should begin to flash slowly.
- Turn the ignition on, after which some lamps will light up and disappear, and the immobilizer lamp will start blinking rapidly.
- Press and hold the central locking button. The warning light should stop burning.
- When the central locking button is pressed, the lamp flashes. We count the number of flashes of the lamp and release the button when it coincides with the first digit of the code.
- We perform this operation again for all other digits of the code.
If the immobilizer has blocked the engine starting"Priory", "Kalina" or "Lada", and you did everything correctly to unlock, then the engine can be started. The lamp should go out and glow every 3 seconds, reminding you that there is no car protection.
Are there any further blockages?
After unlocking, the immobilizer can again lock the car in the following cases:
- When the battery is disconnected.
- After 10 seconds after the ignition is turned off.
After the ignition is turned off, it will be necessary againenter the code. If you enter it incorrectly 3 times in a row, then the next attempt will be possible in five minutes. Note that all these actions are not suitable for decoding the power solenoid valve or computer. Entering the emergency code will only start the engine.
If the immobilizer has blocked the engine starting"Grant" or other cars, you can contact the service station, where they can either completely disable it, or install a crawler. The latter is able to apply voltage to certain conclusions and thus to close the necessary contacts. This device deceives the computer and the engine is successfully started.
Professional masters can interfere with the work of electronics by disconnecting the immobilizer itself from the electronics of the car. But if you do it yourself, you can hurt the entire system.
The immobilizer itself is a good anti-thefta device that saved hundreds of cars. Yes, sometimes there are problems with it, which creates a headache for the owner, but all of them are solved. And in general, the problem with the immobilizer is minimal, which can happen with the car. Therefore, you should not get upset. It will be able to solve it though not at all, but on many SRTs.