How to make a car trunk that opens with a button

Hello, dear friends! Today we are interested in the connection diagram for the trunk opening button.

In practice, installing a button in the cabin that will automatically open the tailgate is not difficult. It's easier than many people think.

The very scheme of opening the trunk with a button is to modify the lock. An electric drive is added to it. He's an activator.

How it works

Many cars are not equipped with a trunk release button from the factory. The car owner has to do this with his own hands.

Even budget foreign cars, as well as domestic car models, can get this function. The cost of its implementation is small.

There are a number of modifications for the cargo compartment of passenger cars. Someone is soundproofing the trunk lid. Others completely insulate the trunk.

It will be convenient and correct to do automatic unlocking. In addition, the scheme for opening the trunk with a button is implemented without skill, as well as experience and special skills.

This is the meaning. A button is displayed in the interior. The driver presses it. The device operates on the principle of a push-pull mechanism. Springs will ensure the lid lifts. This way the driver won’t have to press a button on the trunk or fiddle with the key in the lock.

Another option is to display a button on the alarm remote control.

Installation of electric trunk opening lock VAZ-2107, VAZ-2105

Dear friends, today we will tell you about another small useful tuning, conceived for the convenience of using our fives and sevens in everyday life, namely, we will install an electrically driven lock (actuator) on the trunk lid so that you can open the trunk without leaving the cabin, or if you have a programmable free channel on the alarm, then you can connect the trunk opening to your alarm and open the trunk from the alarm key fob with one click of a button, while smart alarms will also disable the trunk security zone if you have everything correctly connected and the installers did not cheat.

What do you need for work?

A similar connection diagram for the trunk button attracts many.

To realize your idea, you need to prepare materials and tools.

The set consists of:

electric drive (activator) of the luggage compartment lock;
universal 4-pin relay;
fuse blocks;
fuse;
wires;
female type terminals;
trunk opening buttons;
heat shrink tube;
electrical tape;
plastic clamps.

The block is placed for safety reasons. Mounted on the positive wire. The fuse can be taken as standard, 10 Ampere. Do not need anymore.

Determine the length of the wiring individually. But practice shows that 5-6 meters is enough with a margin.

Take the opening button from ten. It is considered the most reliable and also affordable. If you are tuning a domestic car, then it will definitely fit.

At any car market it will not be difficult to buy the entire set. It will cost 600-800 rubles. Maximum 1000 rubles.

Electrical diagram for connecting the trunk lock drive.

Electrical diagram for connecting the trunk release solenoid (actuator)

I drew a standard car relay, 4 or 5 contacts does not matter, I later described the omron G5LB-1-25 10A relay from a broken washing machine, but in principle they are no different except for size, winding resistance and response volume.

Let's describe the electrical circuit for connecting the trunk lock solenoid: we apply a constant plus to the 87 and 85 contacts of the relay, having first run it through a 5-10 ampere fuse, I took the constant plus from the car alarm power supply, I still pulled the wire from it. At pin 30 we hook the electric lock itself, a positive charge will run through it, we screw the second wire from the actuator onto some unpainted bolt of the car body, it will be negative. Contact 86 will receive a negative pulse either from the button or from an additional signaling channel.

The VAZ button 2822.3710-02 has three contacts, we connect the alarm to pin 3, pull the wire from pin 1 to pin 86 of the relay, and pin 2 to the car body. If the button is not needed, then we connect the wire from the alarm directly to pin 86. That’s basically the whole scheme, everything has been tested and everything works great.

Where to begin

Now to the question of how to connect the trunk release button.

You need to start by studying the instructions from the alarm. An option for those who are going to connect a button to the remote control of the car’s security system.

In the connection diagram you need to find the wire of the desired color that goes to opening the tailgate. This is usually a yellow-red wire.

If you have figured this out, then select a location for installation, and also begin the installation process itself.

Control button combination

If the power relay is not included in the kit, it can be purchased separately

It is important that the kit contains a special diode. The peculiarity of this part is that the diode passes a current of a certain charge only in one direction

Accordingly, its correct installation is required. The white strip on the part, indicating the positive side, should be turned towards the red wire, and the negative contact - towards the black and yellow negative cable. For correct connection, you must comply with the diagram below.

How to open the trunk using the StarLine A93 alarm key fob

After activating additional channel one, you can remotely open the luggage compartment. On the Starline A93 2Can 2Lin model and the Lada Granta car, this option is carried out as follows:

on the key fob, press the second button for a long time until the corresponding melodic signal (at least 3 seconds);
Then the first key is briefly clicked.

After this, the car blinks its dimensions three times and also gives an impulse to open the trunk. If the security mode is activated, all doors will remain locked, and only the shock sensor will be turned off (for closing the trunk). In this case, the open compartment door will be displayed on the key fob screen.

How to close the trunk using the Starline A93 remote control

The compartment is closed manually due to the fact that modern cars do not have closers. If the car is in security mode, then after five seconds the status will be updated and the compartment lock will be locked. In this case, the bullet will emit a sound signal, and the open door symbol will disappear from the key fob screen. You can open the trunk again either during this time, or after the next command (the second button is long, then the first is short).

Causes of oil in the air filter and how to eliminate them

Many people are interested in how to make the trunk open with a button. Now you'll find out.

Using the example of the timeless classic VAZ 2107, the process looks like this:

Install a relay under the hood. The best option for placing a four-pin relay. You don't have to run the positive wire to the button. Plus, the space under the dashboard is more difficult to find. A good option is to attach it to the windshield washer reservoir. Make sure that connections and contacts are tight and insulated;
Pull 2 more wires through the standard hole of all wires. One will go to the button, and the second to the activator;
The wiring needs to be routed throughout the cabin. It is better to do this on the roof. And to the trunk. Or use areas where standard wiring runs under a layer of carpet;
Carefully pull the wire through the luggage compartment to the lid. The wiring is connected to the main bundle. Fixed with electrical tape or a plastic clamp;
Now the activator is attached to the trunk door lock. Do not forget that the electric drive works by pushing and retracting. To change the direction of movement, it is enough to change the polarity;
To connect the activator, you need to do the following. Unscrew a couple of nuts and remove the lock. Use a drill to make a hole in the side. Place the rod there and connect it to the tongue of the locking mechanism;
It will be correct to close the installed activator, as well as the lock using the casing. This will prevent dust and dirt from entering. Plus it will protect against mechanical damage;
Now select the place where the button will be located in the cabin. If this is a seven from AvtoVAZ, then they usually choose a plastic trim to the left of the driver’s seat. This will allow the button to always be at hand. He quickly pressed the button, left the cabin, and the trunk was already open;
The button is easy to install. A hole is made in the cover. A button is inserted there, and terminals are also put on. The minus is attached here, on the plastic lining fixing bolt.

Preparation for installation

We purchase a lock kit. There are a lot of manufacturers of auto parts on the market now, but there are no special differences between the sets. It is important that the device has a warranty card and instructions for use and connection. Also in the box you will find:

Activator;
terminal;
Wires;
Relay.

Additionally, you need to stock up on a set of standard tools: pliers, screwdriver, screwdrivers, multimeter, drill with carbide drill bit. In addition to the standard accessories, immediately buy additional wires; it is quite possible that the length of those you find in the box will not be enough for you. Black heat-resistant insulating tape, corrugated tubes, and clips for fastening the trim will also be useful, since very often the trim of car elements is attached to disposable ones.

Important! Be sure to check that the warranty card for the purchased device is available and filled out correctly. Regardless of who performed the installation, you or the service, you have the right to free repairs within a year.

Device set

Tips for Jeep and Station Wagon Owners

The easiest way to get to the luggage compartment will be for owners of SUVs, station wagons and crossovers. In such cars, the rear seat can be easily folded, allowing access to the trunk from the inside. All that remains is to find a handle for emergency opening, which many modern cars are equipped with, but not all. If this handle is missing and the trunk does not open using the buttons or remote control, then you will need to perform the following steps:

Remove the trim from the trunk door.
Remove the plastic panel.
Gain access to the locking mechanism.
Using a wrench (a special tool familiar to motorists), open the trunk from the inside.

Tips for owners of sedans and coupes

You should proceed according to a slightly different scheme if the trunk lid does not open in sedan or coupe cars.

Lower the backrest all the way or even remove the backrest.
Determine the need to remove the inner lining (in some cases you can do without this step).
Try to get into the trunk and use the crank we already know.
If you cannot reach the locking mechanism, you can lengthen the knob using a stick or any other object of suitable design.

Opening the trunk from the inside without a key or remote control

There are some components in a car that you can do without for at least some time. For example, the same cigarette lighter. You can’t say the same about the luggage compartment, since this part of the vehicle is used almost every day, especially if the car owner’s tools are stored in it. When access to this compartment is limited for various reasons, car owners begin to wonder how to open the trunk without a key. We know several solutions for this problem.

The trunk of the car can be opened without a key