Standard on-board computer VAZ 2114

It seems that just recently, car enthusiasts considered a radio installed in their car a luxury, then CD and DVD players began to be added to the list of options for cars. And control over the condition of the car was completely entrusted to all kinds of sensors and dial indicators on the instrument panel.

Naturally, car owners would like to own a car equipped with all the latest technical innovations. But at the moment, not all cars of the Togliatti plant are equipped with a system for monitoring important data. AvtoVAZ is already producing cars with the intended installation location for the on-board computer. And there are even contact connectors for connection.

This article describes the procedure for installing a standard on-board computer for VAZ 2114 and 2115 vehicles. And after reading the description, installing the on-board computer on your own will not cause any problems.

Selecting an on-board computer

The on-board computer software is quite impressive. It has a set of different programs that significantly improve the performance of the car, constantly monitor the technical condition and signal deviations in the operating parameters of the entire system. For example, such as brake fluid temperature, voltage levels inside the vehicle's electrical system, speed mode (total, average, current) and many other useful functions.

The most valuable thing is that the readings from the on-board computer are much better in accuracy than the readings from the instruments installed on the car.

When you choose a VAZ 2114 on-board computer, there are no particular difficulties. The main condition is that it supports ECU programs. And the main advice that experts give is that there is no need to save. More expensive models will be able to provide a deep check of the entire machine system and, accordingly, report faults in a timely manner.

Another useful option that the VAZ 2114 Multitronics on-board computer has is the ability to equip the car with sound and light alarms. If problems arise in the electrical network or the engine overheats, the smart system will immediately send a signal to the car owner.

Installing a high-quality on-board computer allows you to independently and, most importantly, detect problems during vehicle operation in a timely manner and promptly eliminate them. This way you can avoid serious consequences from breakdowns of vehicle components. And all this will help save money when repairing a car.

The best option

The on-board computer on the VAZ 2114 model State 115*24 has many functions that allow the driver to adjust the operating state of some components at his own discretion. But the distinctive feature of this device is the ability to read errors from sensors. Not every model has this function, so it is worth paying attention to this minor detail when choosing an on-board computer.

Of course, this does not greatly affect the operation of the system, but the ability to obtain additional information from sensors helps to find and eliminate breakdowns in a timely manner. Another important detail that the trip computer must have is saving and resetting system settings. In order for the machine to operate as efficiently as possible, the device selects a special operating mode for some devices and components, and then saves them.

If you change the vehicle configuration - installing new parts or replacing fuel with a different brand - you will have to reset the settings. Most devices support automatic reset of operating parameters. If you restore the previous configuration, the computer will automatically return the old settings.

List of error codes in machine operation

In addition to accuracy in vehicle performance indicators, the VAZ 2114 on-board computer is intended primarily for diagnosing all systems; it displays fault codes on the display. To decipher the codes, the instructions supplied with the device contain all the decryptions, i.e., a description of all possible codes.

In order to check the computer, you need to reset the mileage readings for the day on the dashboard and simultaneously turn on the ignition. After this, by pressing the button on the wiper lever, you can see the readings on the display. The device firmware version and, if there are faults, error codes will be displayed.

You can read the errors on the VAZ 2114 on-board computer in the instructions.

ABOUT THE PRINCIPLES OF OPERATION OF SUCH SYSTEMS

Carburetor VAZ 2109 cars were equipped with devices with router functions. Installation of injection power plants VAZ 2114, VAZ 2115 and other models required the use of a completely different type of device. Most of its functional activities are devoted to diagnosing and controlling the operation of almost all devices and systems of vehicles.

The operation of the VAZ 2114 BC is based on and has the following operating principle:

Receiving signals from sensors through the control unit, processing them and issuing messages on the display, as well as the ability to make adjustments for other systems;
Processing signals from systems that are not controlled by the controller. In the event of an emergency, the corresponding icon is displayed on the information board, and a sound signal is also given.

Basic error codes

2 - the network voltage is too high.
3 - malfunction of the fuel level sensor.
4 - malfunction of the coolant temperature sensor.
5 - errors in the sensor indicating the temperature outside.
6 - warning about engine overheating.
7 - low oil pressure.
8 - deficiencies in the braking system.
9 - battery is low.

Most often, the system reacts to faults such as:

Code 4 is the main reason for the appearance: the engine is not warmed up.
Code 6 indicates an overheated motor.
Code 8 indicates a lack of brake fluid.

Once you have resolved the errors, you can reset them. To do this, you need to press and hold the vehicle's daily mileage button.

The display shows two types of information:

Information functions.
Diagnostic functions.

Brief instructions for use

The on-board computer in question is a structurally complex electronic design capable of performing about 500 options. The STATE variation is interfaced with the VAZ 2114 ECU, which ensures normal operation of the device. To use the computer correctly, you should study the purpose and functionality of the BC control buttons located on the dashboard.

It is not necessary to keep in mind the decoding of all the codes; you just need to print them out and take them with you. Important notices:

2
– excessive voltage in the on-board network;

3
– problems with the fuel indicator;

4
– signals a violation of the temperature regime of the power unit;

6
– indicates engine overheating;

7
– critical decrease in pressure in the lubrication system;

8
– violations in the brake unit;

9
– battery discharge.

It happens that the BC issues codes incorrectly due to the failure of a sensor. However, you should not ignore checking the car, since, most often, the activation of errors indicates a malfunction. After fixing the problem, you should reset the processor. This procedure is performed by turning on and holding the daily mileage button.

Information functions

This list includes:

current time and date;
alarm timer;
travel time from engine start to stop;
total travel time (from reset);
immediate fuel consumption;
average fuel consumption per trip;
total fuel consumption for the entire route;
expected mileage on remaining fuel;
current amount of fuel;
mileage for the current trip;
outside air temperature;
instantaneous indicator of movement speed;
voltage in the electrical network.

How does a bookmaker differ from a control panel?

Many car owners are sure that an on-board computer is not needed, all data is displayed on the instrument panel and that is enough.

Universal model

Simple clamps do not cope with their tasks like BC. Theoretically, only from the dashboard can you calculate the amount of fuel consumed, current and average fuel consumption, kilometers traveled, and so on. But why sit behind the wheel and count something, be distracted, if you can just take the on-board vehicle and look at its screen, receiving the necessary information on changing parameters.

So there is a significant difference between the BC and the dashboard.

Installation procedure

The VAZ 2114 car is already equipped with a special place for installing an on-board computer. It should be noted that Multitronics or “State” devices are suitable for this. You can opt for these brands. There are options with a color display. But this is a matter of taste, since, apart from beauty, it gives nothing functional.

Before you start installing the VAZ 2114 on-board computer, you need to decide on the choice of model and set of functions. Obviously, there is no point in installing an expensive model on a regular budget car. It is enough to install a system with a monitor, a processor and, accordingly, the necessary set of wires.

And on the other hand, there is no need to save when purchasing for a car equipped with more expensive technical specifications.

The next step is choosing the installation location. If the manufacturer has already provided a regular place for the monitor, it is better to use it. If there is no free space for this device model, the monitor is mounted on the dashboard.

Next, you need to decide where the on-board computer will be installed. It should be taken into account that the processor heats up to high temperatures during operation, and free space is needed to cool it. The wires are also necessarily protected from external mechanical influences by a special tube.

Using the example of a VAZ 2114 car, connecting the on-board computer will be clearly described below.

The installation site is closed with a special plug. It must be carefully removed.

To make installation of the VAZ 2114 on-board computer easier, the car already has a set of wires with a 9-pin connector. They must be connected to the block on the back of the device.

We turn on the “K-line”; to do this, connect the brown wire to the “M” socket of the Euro 2 block or to the “7” socket of the Euro 3 block. We insert the opposite end of the wire into socket “2” of the device block.

The wire is connected to the block, through the M-socket if there is a “EURO 2” connector, or into groove 7 with “EURO 3” contacts. In this case, you need to carefully inspect the EURO 3 block. There are cases of installing the block upside down!

All that remains is to put it in the designated place and conduct the test.

It should be mentioned that certain modifications of on-board computers can also be installed on cars with carburetor engines. But this is not enough to simply install an on-board computer on a VAZ 2114. The staff of instruments will have to be replenished.

WHAT TO DO WHEN A BC STOPS WORKING

This sometimes happens when the on-board computer does not work. What do experts advise to do in this case? The first step is to determine the type of malfunction of the device. If it does not show “signs of life” at all, you need to check fuse F3, which is installed in the power supply circuit of the VAZ 2114 processor. If replacing it does not “revive” its operation, check the connection connectors.

There is no point in describing the essence of the process of repairing such a complex electronic product, since for this, in addition to having the necessary devices and tools, you also need to have an education in the field of electronics.

Removing the on-board computer

It happens that car owners do not like the way the standard on-board computer of the VAZ 2114 installed during assembly works. Or there is a desire to change it to a more advanced model. This device can be removed by yourself.

Before starting all dismantling work, it is imperative to find out from the car dealership where the car was purchased whether this work will affect the warranty period. Most car dealerships will cancel your warranty.

Dismantling process:

Before starting work, you need to turn off the power to the car; to do this, you need to disconnect the negative terminal from the battery.
Remove the radio control panel.
Remove the radio by unfastening the connected wires.
Put your hand through the opened opening and unclip the fastenings of the computer unit.
Now you can carefully remove the computer by disconnecting all connected wires.
Remove all additional devices connected to the computer.
Reconnect the car radio with wires and install it in place.

How to withdraw BC

We are not honest, but we rightly note that the quality and functionality of the standard on-board computer offered for the VAZ 2114 leave much to be desired.

Therefore, the decision of car owners to install an alternative with advanced functions and capabilities is quite fair.

Wiring

Having resolved all these nuances and assembled a new on-board computer, you can safely begin disassembling the old BC.

Disconnect the negative terminal from the battery installed in the engine compartment of your vehicle. This is to protect against electric shock and to prevent damage to all wiring.
Remove the radio from the console.
Remove the outer panel from the audio system.
You can now completely remove the entire radio. All wires connected to it must be disconnected.
A hole will open in front of you, from which a hand sticks out and carefully opens the holder for the computer disk.
Remove your outdated or worn out panel after disconnecting all wires connected to it.
If you are not installing a new BC, you will need to connect the removed harness. Otherwise, you will have problems operating the car.
Several devices are connected to the on-board computer. Therefore, they will also need to be deactivated. Do this carefully and gradually. No sudden movements. And then you still have to change the wiring.
If a new bookmaker claims to replace the old one, start connecting at this stage.
Insert the radio, install all the blocks in their places, observing the reverse disassembly sequence.

The work is not difficult, but it will take time to complete.

Standard BC for VAZ 2114: why is it needed and how to use it

The time has passed when only a few people said the word computer out loud. Today this device is found in almost every home and has become a standard device in automotive equipment. He has become an indispensable assistant for drivers, as he has taken upon himself the functions of monitoring the operation of most units of modern vehicles.

Standard BC for VAZ 2114

Preliminary preparation

Preparing for installation

There are several activities that you should think about and implement before you begin installing the BC.

Determine the set of functions that you want from your bookmaker. For this purpose, standard instructions are attached to each device. Plus a lot of information can be found on the Internet.
It makes no sense to buy a highly sophisticated system for the VAZ 2114. But budget bookmaker models are not the best solution.
The optimal package includes a monitor, a set of wires and a processor.
Decide where the BC will be installed. The center console is best suited for this. But there must be adequate free space for it.
If the center console doesn't fit, try the dash. Although in this case you will need an external housing.

Remember right away that after installing the on-board computer, you will also have to install the software and make the appropriate settings. Therefore, do not think that by connecting all the wires, the work can be considered completed and the BC will miraculously begin to give you objective and adequate information.

Lada 2114 Quartz Metallic › Logbook › Trip computer 2114-3857010 (bk staff)

A little dream came true, I bought myself an on-board vehicle that I had been dreaming about since my first car) Nowadays it’s so rare to find it here, I saw the ad and picked it up on the same day) How happy the child was when he installed it)) And so that it sits straight and doesn’t wobble I glued it with anti-squeak, there’s a lot left)) For one thing, it won’t make noise)
I’m also throwing in a diagram for connecting the on-board vehicle staff 2114:

How I was tormented by using it to turn off the alarm clock, which was always beeping, but then I figured it out, the instructions were difficult to find, but I will provide them to you in this post