Standard immobilizer in Ford Focus 2 is certainly more advanced in its security properties compared to its predecessors and cars of a similar class. Previously, similar solutions were used in software cars of a higher rank... nevertheless, progress is evident, time passes. In short, the principle of operation of a standard immo is to block the functionality of the electrical circuits involved in the operation of the engine. Leading role in this process The ECU plays - the central control unit, simply the controller or the brains of the car. Previously, to deactivate anti-theft functions, the hijacker simply needed to replace the controller with another one (firmware for immobilizer inactivity), as a rule, this is the easiest way, we won’t mention others for now... Now it’s not so simple: executive units connected to the central controller digital bus, will not work with the new ECU, due to the fact that they are programmatically “tied” to the old unit. Therefore, simply replacing the controller is not enough; intervention at the software level is required. As life practice has shown, all this can be achieved. Not only that, on the existing official dealers equipment you can flash additional. a key with a new chip to the standard set, but it is also possible to program the new controller for execution units adapted to each other. Professional car thiefs have equipment for every specific car. An ordinary hijacker is not required to understand the device on program level, this is done by a certain layer of “organizations”. The device does not look as bulky as a full-fledged diagnostic computer; it does not need to perform all the functions of the above. The main thing is to disable the immobilizer. Intervention in a car network is often carried out through a regular diagnostic connector, hence the need to block digital circuits going from it to the head units, as well as protect access to the head units.

Every car enthusiast cares about the safety of his car. One of the options for protecting against car theft and hacking is a car alarm. The article discusses the standard anti-theft system, the immobilizer, how to activate and disable it, and where the Ford Focus 2 alarm connection points are located.

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Standard anti-theft system of Focus

In the staff anti-theft system includes an immobilizer, and a key with a chip containing secret code. In addition, the standard Ford Focus 2 alarm system comes with instructions that will help you understand the installation and configuration of the system.

When the key is inserted into the ignition and the system reads the code. If the code matches, the engine starts without problems. Otherwise, the car will either not start or stall as soon as the engine starts. In addition, the fuel supply to the engine is blocked. Thus, the car is guaranteed not to move without its original key.

If the main key is lost, there is a spare one. But if you do not use it for a long time, the system may not recognize it. Therefore, it is recommended to start the car once every six months with a spare key and use it throughout the day (video author - Avto-Blogger.ru).

If you lose your key, it is better to immediately make a spare one. This can only be done by an official dealer.

Immobilizer and its location

An immobilizer is a simple and reliable anti-theft device that is installed on a car from the factory. The device has rectangular shape with rounded corners. It is located behind the steering wheel or dashboard of the car. If a person who does not have a key with a code enters the car, the immobilizer blocks the movement of the car.

Device operation diagram

The device can connect to systems using wires or wirelessly.

When installing wireless device the driver receives a number of benefits:

• easier to find a place to install;
• the ability to use multiple control channels;
• connecting additional blocking relays;
• additional functions.

The main function of an immobilizer is to block vehicle systems.

But on a Ford Focus car it has additional functions:

• can work in several modes: service, standard and anti-robbery;
• you can install several relays or sensors to create additional protection;
• thanks to intelligent protection, the possibility of selecting the key code is eliminated;
• automatic activation of the alarm after a set period of time;
• central locking;
• additional keys for authorization.

The device has an autonomous power supply, which blinks when there is a fault. signal light. In order for the immobilizer to work correctly, you need to register the keys and program the system.

Why doesn't the central locking work?

If the central locking on a Ford Focus 2 car does not work, then the reasons may be the following:

• fuses are blown;
• broken wires;
• oxidation of terminals or contacts;
• the limit switch on the driver's door is faulty;
• there is not enough battery charge;
• the alarm control unit has failed;
• the batteries on the key fob are dead;
• the drive is faulty;
• The microboard on the electric motor has failed.

In order to troubleshoot problems, you need to know where the Ford Focus 2 and other models are. It is usually located under the dashboard or behind the glove compartment.

How to activate and disable immo?

Installing the immobilizer on a Ford Focus is carried out according to the diagram that can be found in the instruction manual.

Install the device by performing the following steps:

• the dashboard is disassembled and the main unit of the anti-theft system is installed;
• then you need to connect a wire system to it;
• then blocking relays are connected to the corresponding systems or radio tags are placed in the required places;
• in the car interior you need to install an LED and connect power to it from the immobilizer, when correct installation the light will be on;
• register the keys, if necessary, you need to train the device and make the necessary settings;
• after checking the correct connection, the elements should be securely fastened;
• try to disguise the immobilizer and put it in security mode.

If the light is constantly on or blinking, it means that errors were made during installation or the settings were incorrectly performed. Activated by immo key. You can disable the Ford Focus 2 immobilizer using emulators, crawlers, special computer programs or killers. Can be disabled without using external devices by deactivating the code or attaching the key chip to the antenna.

Alarm Installation Instructions

Instructions on how to install the alarm can be found in the user manual. The power wires come from the ignition switch.

Connection points diagram

You can determine their purpose by color:

• from the starter – red-gray;
• 12 Volt – red;
• from ignition – yellow-green;
• ACC – yellow.

The green wires are responsible for the turning lights. parking lights- black-orange or yellow-orange, handbrake - purple-white, fuel pump green-orange. central locking and door limit switches are controlled from safety block. The wire colors are black-orange and black-green. Door switches have positive polarity.

Tools and materials

To connect the alarm you will need:

• alarm kit with one input for positive limit switches;
• a set of keys;
• screwdrivers.

Stages

During installation, the following equipment is installed:

• car alarm;
• immobilizer bypass module.

Installing an alarm on a Ford Focus 2 consists of the following steps:

1. First you need to remove the torpedo. To do this, dismantle the left cover, which is held on by a latch. Then the self-tapping screw securing the torpedo is unscrewed and the part can be removed.
2. Next, remove the plug that covers the key slot and disassemble the steering column housing.
3. The next step is to dismantle glove box to access the BCM unit. To do this, first remove the right trim of the torpedo, then unscrew the screws in the upper part of the glove compartment, remove the lower trim of the VCM unit and unscrew the lower screws securing the glove compartment.
4. Now we install an LED on the right pillar, and on windshield antenna with built-in tilt and shock sensor.
5. The service button is installed in a secret place.
6. IN engine compartment a siren and a motor temperature sensor are installed.
7. We install the alarm control unit behind the glove compartment.
8. Next, we connect all the wires according to the connection diagram.
9. To bypass the standard immobilizer, you need to put a bypass module frame on the ignition switch.
10. Then we program the necessary settings.
11. After setting up the shock sensor, we check the operation of the alarm.
12. If everything works, we assemble the interior in the reverse order.

Installing an alarm system on a Ford Focus 2 with your own hands will not only reliably protect the car from theft and unauthorized entry, but will also provide an opportunity to save on car service costs.

The immobilizer is designed to minimize the likelihood of car theft.

Operations for emergency mode work

If warning lamp The immobilizer indicator flashes for 5 seconds after turning the ignition key to the “ON” position, which means the immobilizer system is faulty ().

It is impossible to start the engine without performing emergency operation using the ignition key. The following describes the operations that must be performed to start the engine in emergency mode (the numbers 0, 1, 2, 3 are given as an example for the password).

1. To enter the password, you need to turn the ignition key to the “ON” position, then to the “OFF” position according to the digit numbers, and the immobilizer warning lamp will flash. For example, to enter the number “1”, turn the ignition key in the indicated order once, to enter the number “2” – twice, etc. If the digit number is “0”, you need to turn the ignition key in the indicated order ten times.

2. Wait 3 to 10 s.

3. Enter the remaining digits of the password following steps 1 and 2.

4. Once all four digits have been successfully entered, turn the ignition key to the “ON” position and ensure that the immobilizer warning light is illuminated. From this point on, you must start the engine within 30 s. It will be impossible to start the engine after 30 seconds.

5. If the immobilizer warning lamp flashes for 5 seconds, you can repeat the emergency operation operations from the very beginning.

The most minimal, but quite effective means of protection against theft, an immobilizer is what is installed in every car by the manufacturer. Ford Focus 2 was no exception in this sense; when buying this car, the motorist should know that he is buying an option with a security system. All vehicles have a fort installed standard immobilizer, but you can choose more modern model which will surprise additional functions. More information about this right now.

Immobilizer - reliable security system, immobilizer for Ford Focus 2

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Ford focus mondeo– this is the dream of every driver. When he implements it, he immediately thinks about what to do for maximum protection a brand new car. In this regard, everything is quite simple, because the immobilizer is already built into the car and will work without special problems. But not everyone knows which immobilizers are used for Ford Focus 2, how to find them and what to use when choosing. Now motorists will receive a more accurate answer to their questions and will be able to use the immobilizer for Ford Focus 2 to their advantage.

Immobilizer for Ford Focus Mondeo - what they are and what they look like

An immobilizer is a small, rectangular device, sometimes with rounded edges, that is installed behind the steering wheel or dashboard of a car. He blocks traffic vehicle, if a third party who does not have special key. Immobilizers can be connected to vehicle systems using wires or completely without their participation. If the owner knows that his Ford car has a contact immobilizer, then he can count on the following:

Having given preference wireless immobilizer, the Ford driver gets the following options:

• use of additional communication channels and connection of several blocking relays;
• different methods and principles of authorization;
• use of a set of additional functions;
• ease of installation and additional space for placement;
• use of the communication system high speed and other functions.

Immobilizer for Mondeo can have different keys, among which the following types are most often used:

• a key in the form of an ordinary credit card;
• folding key;
• separate or standard key;
• radio tag key.

The latter option allows you to not even touch the door in order for it to open, because the system works exclusively using radio signals. To use keys that are shaped like credit cards, the driver will need to install a special code reader.

Immobilizer functions for Ford Focus 2

A standard function of each immobilizer can be considered the process of blocking the vehicle systems with which it is driven. But modern immobilizer, which are perfect for a Mondeo or Ford Focus, will be able to surprise users with the following qualities:

Modern systems for Ford Focus 2 will work productively at fairly high and low temperatures. Immobilizers have their own batteries, and when they malfunction The lamp is always on and blinking. For successful launch immobilizer, you need to program the system and assign keys. Professionals or instructions can help the Mondeo owner with this. If a car enthusiast has a Ford Kuga, the immobilizer is connected in the same way as for a Ford Focus.

Ford Focus 2 – which immobilizer for the car is better to choose

If a Ford owner does not want to spend extra money on a new generation immobilizer, he can leave regular system, if it is operational. The owner of a Ford can choose an immobilizer of the model that suits him in terms of price and functionality.

If owner of mondeo, Kuga or other car from model range Ford is looking for something simple, but at the same time productive, it has the following options to choose from:

• leave the standard immobilizer;
• buy the simplest and cheapest immobilizer with minimum set functions;
• buy an immobilizer that can be connected to a standard alarm system.

For those who want to get the maximum in one device useful functions There are the following options that they can use to guide their choice:

The choice of immobilizer must be made very carefully, because not all models of these security systems are compatible with Ford cars.

Principles of installing and disabling the immobilizer on Ford Focus 2

Installing an immobilizer on ford mondeo and the focus is performed according to a standard scheme, which can be found by opening the user manual. In order to install an immobilizer in a Ford and connect it, you need to:

• disassemble dashboard and find a place to install the main system unit;
• install the unit and connect the wire system to its connector;
• connect blocking relays to the corresponding systems or place them in necessary sequence radio tags;
• install inside the car LED lamp and connect it to the immobilizer power system, turn it on and make sure it lights up;
• register the keys,, if necessary, train the immobilizer and make the necessary settings in the system;
• check the correctness of previously performed actions and secure all elements of the system properly;
• hide the immobilizer from view as much as possible and turn on the security mode on it.

If the driver does not have a user manual, he can find it on the Internet. If the lamp lights up and blinks frequently, some of the installation or configuration processes were incorrect. To start the immobilizer you must use the key.

To disable the immobilizer on a Mondeo or Ford Focus 2, you need to use special crawlers, emulators, killers or computer programs. It is possible to disable it without the intervention of third-party devices - using code deactivation or attaching a chip from the key to the antenna.

Disabling using a chip from a key is done as follows:

• The key body is carefully disassembled and the chip is removed so as not to damage it;
• the chip is applied to the immobilizer antenna and carefully wrapped with electrical tape;
• within a few minutes a reverse reaction occurs, which disables the immobilizer;
• The device is completely deactivated and can be safely removed.

Users can read more about the rules for connecting and disconnecting the immobilizer in the instructions. If the Ford does not yet have an immobilizer, the driver can install it without any problems. The start function works instantly, which means that immediately after installation the user will be able to turn on his security device. Immobilizers for Ford Focus 2 work no worse than standard security systems, but at the same time they are much cheaper.

Standard immobilizer, unlike additional systems safety, shows almost no effect throughout the entire service life of the vehicle. There are owners who are sincerely surprised to learn that their Ford Focus 2 still has an immobilizer installed. It works correctly and accurately, but the person has one software flaw - poor memory. We forget or lose the keys, and then we have to register them in the immobilizer new key to gain access to the vehicle and have a spare master chip. We’ll find out how to register the key in the Ford Focus 2 immobilizer right now.

A passive tag is implanted into each of the car keys. This means that it will not work without a request from the immobilizer.

As soon as the immobilizer transponder sends a request, the key sends its ID to it, and security system decides whether to accept it or not. The second generation Focuses have a controller that is combined with a transponder, and the keys have stitched tags. This whole business works like this:

• the transponder polls tags in the reach area next to the car;
• receives registered IDs from one or more keys;
• if the key ID matches the ID registered in the transponder memory, the controller will unlock the engine and it can be started, if not, the engine will not start even if the key tip fits perfectly to the ignition lock cylinder.

The immobilizer prevents the car from starting.

Since spare keys are programmed simultaneously with the master key, add them to the immobilizer memory new key is not allowed . You can only register the keys again along with the main one. By the way, if you need to buy a separate key (tip) and a separate chip, they are sold in spare parts stores.

Key article

Disassembled ignition key.

Tip code 4576593 (This mechanical part flip key), code of the chipped part - 1337641 .

Registering the key in the Ford Focus 2 immobilizer

Appearance of the ignition key.

The standard immobilizer of the second generation Focus allows you to register up to eight keys.

This should be enough, taking into account absent-mindedness and one master key with a red mark, which lies in in a safe place outside the car. When we register the keys, all of them should be inside the car, and we will sit in the driver’s seat with the doors tightly closed so as not to confuse the system with extraneous signals and intra-system conflicts.

1. To program a new key with a high-frequency remote control, insert any key into the ignition.
2. Turn it to the second position 4 times within six seconds.
3. We put the key in the zero position and hear the buzzer. This indicates that the system is ready to register other keys within ten seconds.
4. We take a new key and press any button on the remote control. We hear a confirmation buzzer.
5. We perform the same operation with the remaining programmable keys; after each press of the button of a new key, a buzzer should be heard. This also applies to original keys. We do not remove the key from the ignition.
6. Turn on the ignition, set the key to the second position without touching the other keys.

Algorithm from the manual for registering keys.

Video about key binding

Video with immo malfunction on Ford Focus 2

conclusions

Immobilizer chip. It won't start without it.

After this procedure, the immobilizer will register in memory all the key IDs that we used and with the help of each of them it will be possible to unlock any lock with a button remote control. Don't lose your keys and have a safe trip!