How to install a start stop button with your own hands

It's no secret that the usual procedure for starting a car is being replaced by new, more advanced methods. This trend is observed everywhere and, according to many leading auto analysts, will soon find its application in all modern cars. As you may have guessed, this article will focus on the so-called “start-stop” option.

It is worth noting that at the moment such modification is found only on a limited number of cars of foreign brands, and there is no need to talk about the domestic automobile industry. Nevertheless, anyone can equip their car with such a device at any specialized car service center.

On the other hand, you can install the presented equipment yourself, without involving outside help, by adopting some rules and recommendations. Let's try to cover them in detail in this article.

What are the pros and cons of installing it in a car?

What are the benefits of using a button?

A light press is enough to start the engine.
You no longer need to carry the ignition key with you.
The button can be installed anywhere, including right at hand, which increases ease of use.
A number of options are combined with car alarms, immobilizers and other security systems.
You can lock the car by simply pressing a button on the door, without having to set it to the alarm - this saves time if you leave the car for a short time.

If you do not have basic electrical skills, it is better to seek services from a service station

Are there any disadvantages? Alas, yes.

To start the car, you need to sit in it and press the brake pedal. Out of habit, many drivers forget about this.
There may be difficulties when installing an alarm with heating. So, you will need at least two keychains - one of them must be given to the masters. They will disassemble it, take out the chip and install it in the car. Power will only be supplied at startup.
Installing an alarm on a car with a button usually costs more.

There is an opinion that if the battery in the key fob runs out, the car will not be able to be started with the button, but this is not so. Just bring the product to the button and everything will work. If the battery runs out, you can open the car with the key.

How the Start/Stop button works

Before starting all the work, it is important to understand the fundamental features of the device and understand the intricacies of its operation.

Without going into details, the procedure for activating this system itself consists of sequentially performing the following steps:

disabling the alarm;
pressing the brake pedal;
pressing the treasured button.

The last action involves briefly starting the car starter. In order to turn off the car, you should press the same brake pedal all the way and press the magic button.

DIY installation options

There are many product installation schemes, each with its own characteristics.

Option with ignition key. In this case, you will need a key to start. Turning it turns on the ignition, and to start the engine you will need to press a button. There is an option without a key - it is simpler, you just need to press a button.
“Short” and “long” press. In the first option, you need to press the button briefly - the starter will spin until the engine is activated. The second involves holding the button - the starter rotates only while it is pressed.
Various options for turning on the ignition. The first option is to turn on the ignition when you press a button. The second is the ability to activate it only together with the starter.

This is what the installation instructions usually look like

Experienced car enthusiasts combine different options, getting interesting schemes. To install the Start-stop button, you do not need to be an experienced auto mechanic - just ordinary knowledge in the field of car operation is enough. But if you want to implement a complex circuit, with a timer, startup delay and other nuances, you will need serious effort and a large number of additional components.

How to install a button yourself instead of the ignition switch with aliexpress

If you nevertheless set out to equip your iron horse with such a device, it’s time to get acquainted with the features of its installation. At the moment, there are several ways to install the start-stop button. Let's consider the most common and fairly simple method.

To bring this idea to life, we will need a minimum set of components from Aliexpress, which includes:

four-pin relays;
connecting wires;
diode;
the actual start-stop button.

Once all the components have been found, it’s time to start installing the system itself. At this stage, it is important to adhere to a certain sequence of actions. This approach will save you from all sorts of unwanted surprises, which in the future can result in serious problems.

Related article: Why the parking sensors stopped working (reasons, diagnostics, repairs)

The installation algorithm involves the following steps:

the positive terminal of the battery should be connected to the positive contact of the relay;
the enabling “+” relay is also connected to the battery;
the negative terminal is mounted to the ground of the car;
the control contacts of the load relay are connected to 12V;
the control negative output is connected to the corresponding output of the button;
the enabling positive signal remains unconnected.

The presented installation diagram differs from all others in its ease of implementation and should not cause difficulties even for a novice car enthusiast.

What is included in the package, tools and consumables

It would not be superfluous to mention the completeness of the device in question. Due to the fact that currently there is an abundance of all kinds of analogues and modifications. given device, it is important to choose the most suitable one.

It often happens that, due to his lack of awareness, a car enthusiast, when ordering a “start-stop” button on various trading platforms, falls for the tricks of scammers or simply unscrupulous sellers. That is why it is important to know which consumables should be included with this device.

This is interesting: Why oil leaks from the engine, how to find and fix the leak

So, the complete set of delivery assumes the presence of:

the “start-stop” button itself;
control module;
connecting wires with connectors.

However, the standard package does not allow you to assemble a working circuit for this device. To do this you will need to buy several more relays.

Connection diagram

To connect the device to the car, you must follow a specific connection diagram. We bring to your attention one of these schemes with a detailed explanation of the operation of key elements.

Here's another diagram, maybe it will be easier to navigate.

How to connect the device correctly

When installing a button, it is extremely important to avoid making mistakes when connecting one or another node. To do this, you must be guided by the above diagram.

It is also worth noting that one diagram will not be enough to carry out the button installation procedure. In this case we are talking about various kinds of accompanying actions. Let's look at them in more detail.

Note: What is a double clutch in a car (design and principle of operation)

Before implementing the planned project, you will have to perform some actions, namely:

remove the ignition switch;
remove the steering wheel lock mechanism;
disconnect the underwater leads;
remove the immobilizer antenna;
install the button in the most suitable place for yourself;
connect underwater wires.

After carrying out the above actions, the stage of checking the system for operability follows. If you follow the instructions supplied with the device, such a procedure should not cause serious difficulties.

Video on connecting the Start-Stop button

To get acquainted with the installation of the presented device, we invite you to watch a video dedicated to the topic in question.

In it you will find useful information that will help save you from all sorts of troubles at all stages of system assembly.

How does “start-stop” affect the protection of a car from theft?

Most drivers are of the opinion that starting the engine with a button makes the car more vulnerable to theft. But if you look at it, the presence of a key in the key fob is mandatory. If the door was opened without a key, the button simply will not work, which in no way affects theft protection. The system considered is an interesting and unusual option for replacing a key. Regarding installation, there is no definite answer - each car owner decides for himself what he wants to implement in his car. If you want to try something new, then why not. As a last resort, if you don’t like something, everything can be returned to its place.

Anyone can equip their car with a start-stop system if they wish. For this, minimal knowledge in the field of electrical engineering and operation will be sufficient. If you follow the installation recommendations, installing the device will not take much effort and time.

Ready-made universal kits

The modern market is replete with ready-made universal kits for starting internal combustion engines from a button. They are sold together with protective systems and are suitable for installation in almost all known car models.

Ready-made kits can provide reliable engine starting. Modernization, if carried out correctly, will easily turn the starting system of a domestic car into a universal and functional element, no different from the standard version of the best foreign cars in the world. However, the kits are not cheap, and if you call a specialist, then along with the installation, the new starting system will require quite a large financial investment. If you know how to install the ignition button, you can save money.

Ready kit

Thus, there are several ways to install a button. Each has its own characteristics, advantages and disadvantages.

With a key. This ignition option requires a key. An old and proven scheme. Plus - ease of installation, minus - again you need to take the key with you. To start the engine, the driver must press a button.
The same option, only without a key. The advantages are obvious, but the disadvantage is the complex installation scheme.
Short press button. It is enough to just hold the button pressed for a second - this will be enough to crank the starter. The advantage of the scheme: the button only gives the starter a command to activate, it rotates until the internal combustion engine starts.
Long press button. The same thing, only the button is held for a longer period of time. The advantage of the scheme is expressed in the fact that the driver himself controls the rotation of the starter. If he releases the button, the starter will stop rotating.

As was written above, in addition to the classic options for using schemes, there are also combined ones. They are often invented out of the blue by amateurs and craftsmen. Some schemes are so successful that they deserve higher approval.

How to start a VAZ 2109 without a starter

The good thing about old carburetor cars is that they can work without a battery. Try to remove the battery from a modern foreign car and start it, this will never happen in your life, you will have to either look for a new battery or recharge the old one. With the VAZ 2109 it is much easier in this regard, they started it from a pusher and the car drives easily without a battery. The main thing is not to stall. If you know that your VAZ 2109 has a weak or completely dead battery, then try to park the car on an incline. Then when you come and it doesn’t start, you won’t need to push it, but you can just coast and start it. Although, the VAZ 2109 is a light car and on a flat road, or a little downhill, it can easily be rolled even by one person. So, closer to the point, if you turn the ignition key of the VAZ 2109 and hear the clicking of the retractor relay, or no sounds at all, it means the battery sat down and the car will have to be started from the pushrod. If you have an assistant with you, then this is very good. There is no assistant, it will be harder, but you can do it yourself. The sequence of actions is as follows: 1) Turn on the ignition of the VAZ 2109.

Overview of the Start-Stop system

On what principle does the engine autostart device work, how is the system installed, what do you need to know about starter recuperation? You will find diagrams for connecting and starting a car engine below, but now we suggest you familiarize yourself with the design features and operating principle of the system.

Device

So, what elements are included in the ignition start system:

Instead of a traditional ignition switch, a special, more powerful starter equipped with a button is installed.
Bendix, as one of the components of the starter mechanism. For example, starting equipment for Bosch cars is equipped with special silent bendixes.
A controller installed in the connection diagram. Its purpose is to display information about the charge of the car battery.
Perhaps the most important component of the system is the control module, which monitors and controls the operation of the equipment. That is, this is, in fact, the “brain” of the system. Using the control module, the basic parameters are read, as well as the values transmitted by the speed sensor. In addition, thanks to the module, the engine crankshaft speed and the position of the gas pedal while driving are determined. The control module, receiving data, subsequently transmits it to the ECU.

Principle of operation

How should the system work? It should be noted that most of the modern devices that can be found on sale today have undergone various changes. New functions can be introduced into them, for example, a car alarm, but, nevertheless, the principle of operation is the same. The car's power unit automatically turns off if the car is standing still and not moving and subsequently starts if the driver plans to start moving.

It doesn’t matter whether the vehicle is equipped with an alarm or not, to activate the equipment with an automatic transmission, you must completely stop the car. The driver should then press the brake pedal

After the pedal is released, the equipment is automatically activated and the motor starts working again.

If we talk about cars with a manual transmission, then in this case the principle of operation is somewhat different. For the equipment to start working, you will need to engage neutral gear and disengage the clutch. After this, the car engine will turn off on its own until the driver of the vehicle presses the clutch again (the author of the video is the CARDOT channel).

Possible faults

If the power unit is equipped with such equipment, then one way or another, it is subject to more frequent starts. This means that the use of conventional starter mechanisms in such cars is irrelevant. In addition, the vehicle must be equipped with an additional battery, which will allow it to easily cope with an increased number of discharge and charge cycles.

It must be taken into account that if problems occur in the operation of the power unit, the system will still work in the following cases:

If the fault affects the generator device. Even if the generator malfunctions, the motor will continue to function.
In the event that the battery is discharged and the charge available in it is not enough to restart the engine after stopping.
If for some reason the coolant in the system does not warm up and its temperature is less than 25 degrees. In this case, the engine will continue to function even if the driver does everything to stop it, since the unit will try to warm up the antifreeze to operating temperatures.
Also, the system will not work if the car’s steering wheel is turned to the maximum left or right position (the author of the video is Dmitry Gerasimov).

As for the Start-Stop faults themselves:

The control module has failed. This problem happens infrequently, but, nevertheless, it cannot be ruled out. If the unit breaks, it will be impossible to start the engine, so you will have to remove the module and repair it or replace it. Malfunctions of the control device may be caused by wear or burnout of the board.
Failure of the starter mechanism, in particular the bendix. Like any other equipment, the starter tends to wear out over time, so no one is immune from its breakdown.
Damage to the electrical connection circuit. Such malfunctions are solved by replacing the damaged area.

If a fault is detected by the control unit, the Check Engine button should appear on the dashboard.

Maintenance Recommendation

The current power mode is permanently stored in the memory of the power supply ECU. Therefore, if the power supply ECU is de-energized, for example, if the battery is removed, the power supply ECU will restore the power mode to the previously activated state after the battery is connected.

Therefore, if you remove the battery in any power mode other than "Off". (“OFF”), power will be supplied to the vehicle’s electrical equipment at the same moment as power is supplied to the power supply ECU (when the battery is connected). Therefore, before removing the battery, you should turn the engine start button to the “Off” mode. (“OFF”) and remove the key from the slot.

Table 1.31. Indicator lamp operating mode

*Cars with manual transmission. **Vehicles with M-MT multimodal manual transmission. ***If the power mode is “Off”. (“OFF”), press the clutch pedal for more than five minutes and then open the driver’s side door, the warning light on the engine start button will flash. This is not a malfunction.

Rice. 1.64. Block diagram of the electrical fixation circuit

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Comments 8

Please tell me how the standard immobilizer and engine autostart behave after installing this system?

There are no changes in the operation of the immobilizer, since this button is connected to the standard connector of a conventional ignition switch and only performs its function. As for autostart, you need to look at the connection diagram. But since most alarms are connected to the key, the auto start will not see this button. The button simply emits the operation of the key in the ignition switch. But there are a number of disadvantages: the car cannot start from the pusher)) and when the battery is very discharged, the button block takes on a charge and the car does not envy without lighting it.

Many modern cars are equipped with a system called Start-Stop. It allows you to start the engine using a button rather than the ignition key. In addition to standard devices, there are universal solutions on sale that allow you to install such a mechanism on almost any car. Today we will tell you about how the keyless engine start button works, what advantages and disadvantages it has, as well as how to properly connect and install it on the car with your own hands.