Today, most automakers seek to equip their products with the maximum number of modern electronic systems. However, all additional devices can have a detrimental effect on car wiring and lead to sad consequences. This often happens in those cases, when the equipment is connected directly.
Assemble and install the matching module yourself.
The matching unit is a device, which ensures the coordination of the control system of the car and the trailer. He switches the fog lights on the trailer, controls the turn signals, and also excludes parktronics, when the trailer is attached to the car.
In which cases it is necessary to install a smart connection
When connecting equipment (farkopa) by the method of "brute force" the main onboard module of the vehicle detects the intrusion of third-party consumers. This will be considered a system failure and will cause the car's main computer to malfunction and be inaccurate.. Usually, the module issues an error message in such situations:
- the vehicle is equipped with multiplexing wiring;
- earlier in the car was installed an electronic monitoring system with AC voltage;
- the car is equipped with the CAN BUS data device (mainly installed if the machine has an on-board computer device);
- the car is equipped with a special SLF system, which scans the whole car for the presence of failed electric lamps;
- the vehicle is illuminated by LED devices.
If your car meets at least one of the above, that means, that if on it installation of the electric socket of a towbar directly will be carried out, then with a high probability it will cause serious failures in a large number of electronic systems of the car.
Reconciliation module board after soldering with your own hands.
The system of the module of coordination of smart connection provides duplication of each power chain of loading of the trailer. The principle of operation of this device is as follows. When you receive a message from the car's central computer, that it is necessary to activate a light source, the smart connection sends a control signal about the inclusion of a specific voltage circuit. It also regulates the load in this way, so that it does not differ from the usual. The device of the smart connection provides for the presence of fuses, necessary to protect the towbar from overvoltage. Thanks to these fuses, the on-board computer of the vehicle does not notice any changes in the voltage of the car network and does not detect an error. In accordance, this ensures the normal operation of all systems.
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You should also keep this in mind, that even in many cars of obsolete models before, how to install a towbar, you need to mount the matching unit. This procedure is relevant in the following situations:
- if there is a chance of fire. Usually, if additional electrical appliances are installed in the car, this necessitates an increase;
- nominal values of standard fuses. This is due to the increased load on all power circuits of the vehicle. The same applies to rotating lighting devices, as well as dimensional lamps. Such jumps will lead to accelerated wear of the part, as well as to violate the mode of its operation. After all, most cars, on which the towbar was installed, most of the time still drive without a trailer, such operation can cause damage to the ignition wiring of the fuse itself;
- if at the time of connection of the towbar and the trailer to the car in its electric circuits there are already problems, this instantly causes the fuse to blow. A faulty fuse can cause the brakes to burn out, position and emergency lights;
- if you decide to use another trailer (example, renting it or borrowing it from a friend), it may be a completely different type of thermostats. It will also instantly blow out all car fuses and turn off the whole world.
Assemble the mounting chassis with your own hands
If you have already installed a towbar, then the installation of a smart connection will be a panacea for all the above cases. The device of the matching unit provides built-in protection of high class. The car's mains will never be short-circuited or overloaded.
Spare relays are also built into the smart connection, which completely exclude a chance of an overvoltage of electric networks in case of connection, example, towbar with trailer. The matching unit has high resistance to mains voltage drops.
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Algorithm for connecting a smart connection
The smart connector module must be connected directly to the battery. A starter is also connected to the device, oil gauge, fuel valve and, directly, on-board computer. The algorithm for connecting the smart connection to the mains is presented in this diagram:
Algorithm for connecting a smart connection to the mains
Procedure for installing a smart connector:
- to dismantle loading panels;
- prepare a set of cables;
- find and check running lights;
- check the brake lights;
- install smart connector;
- connect the cables to it.
How to make a smart connection with your own hands
If you do not want to buy a smart connector, you can make it yourself. You will need this:
- pay, on which diodes and relays will be installed;
- diodes (in the amount of about five pieces);
- relay (in quantity, coinciding with the number of diodes);
- box or other frame, which will become the external border.
The order of compilation:
- mount the diodes on the board;
- install the relay on the board;
Installation of control relays on the board
- connect the cable, guided by the following scheme:
The connection diagram of the matching unit
- place the resulting module in a box.
Installing a towbar controller requires knowledge of electronics, ability to solder small parts and a little free time. If you have all the above abilities, then making this device with your own hands will not be very difficult for you.