How to make a cheap car anti-theft device with your own hands

Anti-theft mechanical devices for cars can be used as a primary or additional security device. They are divided into eight types, depending on which element of the car will be blocked. In this case, it is enough to install just one type of device to prevent theft.

What types of anti-theft mechanical devices are there for cars?

Steering locks

Steering wheel locks

Rating of mechanical blocking companies

How to make a mechanical anti-theft device with your own hands?

Video “Is it possible to open a mechanical hood lock?”

Comments and Reviews

What types of anti-theft mechanical devices are there for cars?

Automotive devices designed to protect the car are divided into several groups:

  • for gearbox;
  • to protect the engine compartment;
  • on the steering shaft;
  • for ignition switch;
  • on the car door;
  • for steering wheel;
  • on the pedal;
  • for installation on wheels.

Transmission locks

This type of locking device is divided into several types:

  1. Arc devices. When turned on, these models lock the transmission lever in a certain position. The lock is secured using a special bracket that wraps around the gearbox lever. Modern models of devices are equipped with special larvae characterized by high cryptographic resistance. To ensure the highest possible security, a floating password is used, making hacking almost impossible. The key disadvantage of gearbox locks is the large size of the devices.
  2. Pin blockers. This type of device is considered more advanced compared to the arc lock for gearboxes. The main component of the design is a steel pin, which is used to lock the gearbox. When activated, driving the vehicle will be impossible. The body of the device is made of high-strength steel. Compared to arc locks, pin devices fit harmoniously into the interior of the car.
  3. Pinless type of blockers. This type of device is considered more modernized. The process of blocking a manual transmission or automatic transmission is performed directly inside the device. Activation and deactivation of equipment occurs only using a key.

The ProSecurity channel talked about which gearbox lock is best to use to effectively prevent car theft.

Hood locks

This type of device is designed to protect elements and assemblies located in the engine compartment. The level of reliability of the device is determined by the security of the larva itself. If this component is vulnerable, it can be easily hacked.

The main disadvantage of hood locking devices is the low security of the drive cable, which is designed to open it. If a criminal gains access to this element, he will hack the device without entering the car interior.

Steering locks

This protection option is designed to prevent the steering wheel from turning. The devices are installed directly under the column, next to the pedal.

Structurally, such a blocker consists of several elements:

  • locking device;
  • locking mechanism;
  • automatic latch;
  • coupling;
  • screws;
  • key or secret button.


The principle of operation of the locking device is to fix the steering shaft using a coupling, which consists of several elements.
This part rotates along with the steering wheel when the lock is not working, so it is impossible to notice it. To turn on the device, the car owner needs to install the locking mechanism in the groove and close the device. This will lead to the fact that on one side the steering wheel, when turning, will rest against the engine shield, and on the other, against the pedal. The steering shaft lock is difficult to pick. The most effective type of locking devices are devices with secret buttons that do not use keys. You can bypass such a mechanism only by cutting it with a grinder.

The channel “Andrey Kondrashov - copyright protection against theft” presented a test of popular locks for steering shafts and talked about the advisability of their use.

Ignition switches

If a hacking attempt occurs, the contacts in the device will open, which should close when the power unit starts. When installing the lock, its switch should be brought out and masked. Otherwise, the criminal will be able to start the internal combustion engine. Ignition switches can be touch controlled or radio controlled.

Locking devices of this type are made of high-strength alloy steel. The design of the lock is based on a high-secrecy mechanism. Depending on the model, the blocker can be additionally equipped with protection for the starter unit from being turned on again.

Door locks

This type of device is used to prevent an intruder from entering the car. Devices of this type are presented in the form of a metal pin that blocks the door if it is not locked. Activation of the device is carried out using a key or key fob, it all depends on the type of device.

Steering wheel locks

This type of system is used for mounting on the steering wheel rim or in its spoke. The principle of protection is based on the fact that the criminal will not be able to turn the steering wheel in the event of a break-in. The second part of the lock product will always rest against the door or dashboard of the car. There are devices for the steering wheel, one part of which is placed directly on it, and the second - on the pedal.

You can bypass such a device without any difficulties. But if the device is equipped with a secret, then this will be problematic.

The “Baza Avtozvuka” channel talked about protective devices designed for installation on wheels.

Pedal locks

There are two types of anti-theft devices of this type:

  1. Thrust mechanisms that prevent pressing the gas or clutch pedal. The main disadvantage of such a device is the inconvenience of installation. But this minus for the consumer can become a plus, since it is almost impossible to hack the larva if it is stolen. Due to the inconvenient location, even a weak secret will not be able to be opened.
  2. Supporting devices. A device of this type blocks the possibility of moving the pedal with one part, and the second clings to the steering wheel of the car. Installation is simpler than thrust mechanisms, but this type of device is characterized by large dimensions.

How to choose a lock

Before purchasing a device, you must consider the following criteria and recommendations:

  1. A type of blocking relay.
  2. Dimensions of the main module housing. To ensure hidden installation, the dimensions of the device must be minimal.
  3. Device placement. If the relay is installed inside the vehicle, then any mechanisms can be used. If it is necessary to install a part under the hood or under the bottom, it is recommended to use sealed locks.
  4. Manufacturer. More popular brands in practice offer users high-quality relays with a long service life.
  5. Technical features of the vehicle. The operation of the relay can be adjusted with currents of various magnitudes, so this point must be taken into account before purchasing. If the parameters do not match, this will damage the device.
  6. The type of signals the relay operates with. Today, dialogue encoding of impulses is the most effective way of blocking.
  7. Availability of additional features and capabilities. In particular, this means protection from noise and interference.

Video: choosing a relay for engine blocking

The “Your Own Electrician” channel in its video spoke in detail about normally closed and open relays, as well as the advisability of using them.

Rating of mechanical blocking companies

To choose a high-quality protective device, it is recommended to familiarize yourself with the brands and models that consumers prefer:

  • Interception Universal;
  • Python;
  • Knight Barrier;
  • Guarantee;
  • Defen Time;
  • Barracuda.

Interception Universal

The device is made in the form of a metal cylinder, which is mounted on the steering column. The device is fixed in a certain position, and when it is closed, turning the steering wheel will be impossible. The body of the blocker, as well as its protective part, are made of stainless steel, which contributes to longer operation of the device due to low wear.

Due to the absence of a keyhole, higher reliability is ensured. The device is turned off using a key made in the form of a ring with notches. On average, the price of the product is about 6500-7500 rubles.

  • compatibility with more than 50 car models;
  • The device does not require maintenance.

Python

The operating principle of the device is based on blocking the steering wheel from turning. To perform the task, a special long pin in a leather case is used. The key feature is the implementation of effective protection against various hacking options. The device performs simultaneous blocking of both mechanical and electronic components. This refers to both the steering wheel and the starter mechanism.

The device is protected by additional protection against the use of master keys and similar products for picking the lock. If a criminal manages to open the device, then the internal combustion engine will not be able to start. To activate the starter mechanism, a special button installed on the key fob is used. The cost of the set is approximately 7,600 rubles on average.

User Perehvatsz spoke about the features of the Python locking system for cars.

Knight Barrier

The device is made of high quality stainless steel. The manufacturer provides a five-year warranty on the product. The steering wheel lock is equipped with a keyhole located on the side. It is characterized by an unconventional shape, which makes it difficult for the device to be hacked. To open the device, not standard keys are used, but rather unusually shaped controls.

  • the product does not require periodic or routine maintenance;
  • the original shape of the device will not allow the thief to use master keys or bumping;
  • Suitable for most modern car models.

Guarantee

This manufacturer supplies the market with two effective protection options - Bastion and Block blockers. Both Garant models are characterized by high secrecy of the internal cylinder. The device effectively protects the starter mechanism from restarting.

  • the warranty service life is five years;
  • The device is suitable for installation on most modern cars;
  • the device is made from high-quality carbon steel, which prevents rapid wear;
  • The locking device is based on the Abloy lock, characterized by high secrecy.

To operate effectively, the device requires periodic maintenance and lubrication. The average cost of a set is about 7500-800 rubles.

Defen Time

The hood lock of this brand will effectively protect the engine compartment. The key feature of the device is the use of modern protection technologies during production. In practice, it is almost impossible to hack the product. This is due to the high-strength materials from which the device is made, so it is difficult even to cut it with a grinder. Depending on the model, the cost of the device can range from 2,500 to 7,000 rubles.

User Alexey Lyamin spoke in detail about the features of using Defen Time hood locks.

Barracuda

This brand produces both locks and locking devices for certain vehicle models. In this case we mean anti-theft devices for transmissions. On average, installing a locking device can take up to two hours. On sale you can find universal products that are mounted in standard places, as a result of which you do not have to drill additional holes.

Locking devices are characterized by rigid contours. This increases the mechanical strength of the device. On average, one lock will cost the buyer 4,500 rubles.

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How to connect and configure

To install it yourself correctly, you need to disconnect the battery. The terminal clamp with the negative signal must be disconnected from the battery, having first turned off all electrical equipment and the ignition. If the vehicle has an electric motor, the high-voltage battery must be disconnected.

Auto-latching relay

An example of installation is considered on the Starline B62 Dialog model. The main circuit of the control unit is equipped with an engine blocker, as well as a set of switching elements. This output on the microprocessor is designated X1. The maximum switching current is 15 A.

Installation Guide:

  1. Before installation, the user must configure a specific relay operating mode. This procedure is individual for each model of the anti-theft system and is performed in accordance with the technical documentation. In the Starline B62 alarm system, option number 10 in the manual is used for programming. Initially, the relay is configured for normally closed interlocking.
  2. The device is installed after the user selects a location. Installation is carried out in one of the standard electrical lines for blocking the car engine. For example, it is allowed to install a blocker in an open circuit of a fuel pump, injectors or crankshaft sensor.
  3. 2 of 3 contacts on the device are connected to the mounting location. For connection, cables in blue and blue-white insulation are used. These wires are included with the security system.
  4. When connecting the device to an electrical circuit with an inductive load, the user must take into account the current rating. The maximum value during switching may be greater than the current load for relay operation. At this current, the blocker will fail.

Remote latching relay

The installation process is discussed using Starline R2 as an example:

  1. The device is installed in the same way as the B62 relay. The protective device must be embedded into one of the standard power lines of the vehicle. To do this, you can use a fuel pump, starter mechanism, injectors, and crankshaft sensor.
  2. To connect the contacts, you must enter the programming menu for the main functions of the anti-theft system. Here you need to select the relay operating mode - normally closed or normally open. Once selected, the user must turn off the function programming menu.
  3. Then the black wire is connected. This is “ground” or grounding, so it must be connected to the car body. The contact is connected to any standard bolt screwed into the car body.
  4. The ignition system is deactivated. The Valet service mode button is pressed 7 times.
  5. The ignition system is turned on. The alarm will sound with several sound pulses, indicating successful entry into the programming menu.
  6. Over the next five seconds, the black wire marked “ZAZh” is connected to the ignition circuit. If the relay is successfully linked to the memory of the control unit, the siren will sound with one long pulse.
  7. To exit the menu, turn off the ignition. If several relays will be used, then the remaining components are installed in the same way. After installing the additional device, the siren will emit a double signal. If there are three pulses, this indicates that information about the relay has already been entered into the memory of the control unit.

How to make a mechanical anti-theft device with your own hands?

The easiest option is to block the vehicle's exhaust pipe.

To make an anti-theft mechanical device for a car you need:

  1. Drill a hole in the pipe.
  2. A special cylindrical part made of steel is installed into it.
  3. Another hole should be made in the center of the cylinder.

The bottom line is that by installing this element in the hole in the exhaust pipe and turning it, the exhaust gases will be blocked. They will not be able to get out, as a result of which the car engine will not start. If you turn the cylindrical device with a hole towards the exhaust gases, they can leave the car. In fact, this anti-theft device is a regular faucet.

There is another option - to make a lock that is primitive in design to prevent the clutch pedal from moving. As a base, you will need a steel bracket, the body of which has holes of the appropriate size. A lock will be inserted into them, which will lock.

Video “Is it possible to open a mechanical hood lock?”

The channel "AUTOSECURITY - Anti-theft Studio" conducted an experiment on hacking an anti-theft lock, the results are presented in the video.

You can make a simple and effective anti-theft device with your own hands even at home, without using complex and expensive parts. Moreover, in a number of cases, homemade protection can help out no worse than a professional one, and individuality and non-standard manufacturing can confuse even an experienced attacker.

How to protect your car from theft in 5 minutes?

Every car owner is afraid that his car will be stolen. That is why we spend a lot of money on insurance and anti-theft systems. Unfortunately, even the most expensive alarms do not provide 100 percent protection. So why buy an expensive security system if it is not 100% effective? Yes, this is not logical.

In most cases, an inexpensive electronic car alarm will do. Theoretically, by installing an inexpensive security system on a car, we do not significantly reduce the safety of the car. But what to do? How to increase the protection of the car in this case? Fortunately, there is a simple but very effective solution. Few people know, but every driver can make his own anti-theft device in a short time, which will cost very little.

In order to protect the car from theft, you need to install a previously faulty fuel pump relay in the car. To do this, you must find a faulty fuel pump relay at a junkyard, or deliberately break a new one, making it inoperative. You can also go to any car service center and ask the mechanics about the faulty relay.

If your fuel pump relay is currently not working well, then this is the right time to buy a new one and use the old one to further protect the car from thefts. The meaning of protection is simple. When leaving the car in the parking lot, before leaving, you remove the working fuel pump relay from the car and install the faulty one in its place.

As a result, in the event of an attempt to steal a car, attackers will face a problem. Your car won't start. The reason is that the engine will not receive fuel due to the fact that the broken relay will not start the fuel pump. Accordingly, the spark will have nothing to ignite when starting the car.

If you do not have a non-working fuel pump relay, we will tell you and show you how you can independently make a fuel pump anti-relay from a working relay, which can confuse attackers at least temporarily.

Conclusion

Well, a short conclusion. All these devices are simply wonderful inventions that humanity has come up with. They can really help against car theft. You need to install them on your car, although not all of them in a row, but some are simply a must. Once they tried to steal a car from my friend. But nothing worked out for them, because they installed a gearbox lock and a cunning anti-theft system based on an OBD adapter, which I will talk about in the following articles.

In general, any tricks in terms of car security have long been known to professional car thieves, and if they want to steal your car, they will steal it. Another thing is that if your car is not unique, and not the only one in the city, and when the criminal is stolen, he will be faced with many levels of protection, then he will probably change his mind about stealing it, and will go to steal the same car, which is standing in the neighboring yard and does not have this level of security.

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