Attachment of the trailer of the car is carried out on a towbar - the trailer ball device. It connects to the wiring of the car, allowing the driver to include dimensions, fog lights and turn signals on the trailer. The electricity is connected using a special socket - it has 7 or 13 contacts. Regardless, uses the wiring diagram of the trailer 7 contacts or 13, you may need a smart connection, which reconciles the electricity of the vehicle and the trailer on it.
some subtleties
On simple cars like VAZ 2107 connection of the socket of a towbar to the car is connected by wires to regular conducting, which is responsible for the rear optics.
Sooner or later, you may need to use your car to transport cargo
Standard electricity connection is based on the principle of "dad-mom", does not present any difficulties, as the connectors are sold in all car shops. To make soldering the connector easy and consistent, showing the power scheme, wires vary in color. It is better to choose copper stranded wires to connect the wiring.
Thermostats of the towbar socket 7 pin is the most popular today. However, electrical outlets for European cars may differ from similar devices for passenger cars of domestic production in the location of signal wires.
The question arises: how to connect the socket in this case? A similar problem arises in that case, when the fork on the car has 13 contacts, and the towbar connector - 7.
To connect electricity, when it comes to different connectors, a special smart connection is used. It allows you to connect contacts in cases, when unsoldering does not match.
Thermal insulation under the hood
When choosing an outlet, you should pay attention to the presence of a rubber seal on the back for waterproofing contacts
The scheme of connection of the socket of a towbar on 13 contacts looks like this, that the wires on it are arranged in this way:
- 1 - left turn;
- 2 - fog lights;
- 3 - land;
- 4 - right turn;
- 5 - right size;
- 6 - stop signal;
- 7 - left dimension;
- 8 - reverse;
- 9 - long load current;
- 10 - power;
- 11 - free;
- 12 - free;
- 13 - land.
13 contact socket
Towbar connection diagram 7 contacts
To make the wiring connection correctly, it is important to have knowledge in the field of electrical engineering. The wiring diagram of the trailer socket is shown in the figure 1.
Trailer connection diagram
Mal. 1 Connecting the trailer to the car wiring system
Place the electrical outlet on a metal frame, which provides attachment of the trailer to the car body. When buying, pay attention to that, so that the back side has rubber seals. It is necessary, to provide waterproofing of electrical outlet contacts.
The connection of the trailer to the car's power supply system is carried out there, where the harness pad of one of the taillights is located.
matching unit
Connecting a trailer requires attention not only to that, how much the trailer socket scheme fits into the car's electrical socket. When we try to connect a trailer to a vehicle like VAZ 2107, we will not have difficulties - the wiring is put directly. Drivers of modern cars know, that the reaction of the on-board computer to the trailer may be negative and lead to problems. To avoid this, you can make a matching unit for the towbar with your own hands, its scheme allows you to properly organize the operation of the electrical system.
Tuning headlights VAZ 2109 with their own hands
When you try to turn on the fog lights or turn signals, such a device sends a signal to the on-board computer, pointing at the same time, which branch of the electrical circuit should be used, and which connection is used for this. Having made and established a smart connection for a towbar by own hands, you ensure stable and correct operation of the electrical system and on-board computer.