Instructions for VAZ-2114 operation and use for the on-board computer

The instructions for the on-board computer STATE on the VAZ 2114 and 2115 will help to reveal and understand the purpose of the BC. The prevailing function of the device is to inform the driver about the technical condition of the vehicle. Using codes, you can find out the condition of the fuel system, power unit and other important components.

Some luxury versions of the VAZ 2114 are equipped with a standard BC; other models provide space for installing a computer and all the necessary connectors. Installing a high-quality device will allow you to detect vehicle problems at an early stage and eliminate them in a timely manner.

Main settings

The instructions for the on-board computer STATE for the VAZ 2114 and 2115 make it possible to study all the parameters and resources of the BC. The operating principle of the device in question is to relay sensor readings through a control unit. Then the data is processed and displayed on the screen in the form of codes. Using the BC allows you to diagnose systems that are not recognized by the controller. The occurrence of emergency situations is indicated by a characteristic icon displayed on the display and accompanied by a sound signal.

Main displayed data:

Speed ​​limit, remaining fuel, travel time;

• Coolant temperature and throttle valve placement;
• Error codes;
• Cyclicity of air circulation, distance traveled, average speed and other useful parameters.

Equipped with an emergency warning light, the BC notifies the driver of engine overheating, insufficient battery charge, low fuel level, or problems with the cooling system.

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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.

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:

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.

Errors when connecting/operating the on-board computer

Error: “No connection with the controller” or “break in the K-line.” This error indicates that the K-line is not connected or a contact break has occurred. Check the wire according to the diagram described above. Most likely the contact has come off the diagnostic block.

Error: “Incorrect readings of the sea temperature sensor.” If your temperature outside is -40, then this indicates that the wire to the temperature sensor has broken, or there is no such sensor at all. If the temperature is, for example, -25, but it’s only -10 outside, then you need to replace the sensor with a working one.

Device installation

The domestic model VAZ 2114 is equipped with a place for mounting the BC. It is closed with a control plug, which must be carefully removed. The installation work is facilitated by the presence of a special set of wires with a nine-pin connector. It must be connected to the corresponding input of the device. The main interaction between the device and the machine is activated by connecting the brown wire to the “M” (Euro 2) or “7” (Euro 3) socket. The opposite end of the wire is inserted into the input socket of the device. The operation of the computer is tested, if everything is normal, the installation can be considered complete.

If it is necessary to dismantle the BC, the following manipulations are performed:

• The system is de-energized by removing the terminal from the battery;
• The radio control panel is dismantled, along with it;
• Through the resulting window, the BC fastenings are disconnected;
• The device is removed after first disconnecting all connected devices;
• The radio and panel are mounted in place.

If the on-board computer fails, you should contact suitably qualified specialists. If a situation arises when the BC does not respond to commands and does not turn on, you need to check fuse F3

(read how to do this here). If replacing it and checking the connecting connectors does not produce results, you must submit the device for repair.

Any motorist dreams of a car with the maximum range of functions that make it easier to diagnose a malfunction and increase the comfort of the trip. The presented instructions for the on-board computer STATE for the VAZ 2114 and 2115 will allow you to understand the functionality of one of these devices. The driver will have access to a lot of options and information about the technical condition of the car in real time.

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 was a lot left)) For one thing, it won’t make noise)

PURPOSE AND MAIN FUNCTIONS

Cars produced in Russia are equipped with such a device. For example, the standard on-board computer of the VAZ 2114 became the first-born in the family of VAZ cars. To put it in simple words, this is a car reference book on wheels. The driver needs it in order to know what is happening both inside the car and outside.

WHY IS IT INSTALLED IN THE CAR?

The on-board computer of the VAZ 2114 of the first versions performed few functions, these were the following:

• Control over the availability of fuel on the vehicle and the distance that can be covered on it. This will help the driver make the right decision in time to refuel or stop driving;
• Monitors the operating temperature of the coolant in the engine and helps prevent it from overheating.

The use of more expensive versions of computers makes it possible to diagnose individual components and assemblies of the machine.

They are endowed with the ability to decipher fault codes issued by the controller, and this allows the driver:

1. Be promptly informed about problems that have arisen in a particular machine system, and respond correctly to this. Eliminating the problem in its “bud” eliminates expensive repairs;
2. Get savings from using your car.

ABOUT ITS FUNCTIONS

On-board computers of the VAZ 2114 are equipped with and perform the following basic functions:

1. Display information about which indicators have instantaneous parameters;
2. Displaying current information on the information panel;
3. Route parameters are reported. They mean information about mileage, average fuel consumption, travel time and other data;
4. Ability to read error codes and diagnose a car engine. This allows you to receive information about all the problems of the power unit without lengthy consultations with “specialists”.

Some of the models have additions to the basic functions, which may include:

• Information about the timing of the next machine maintenance;
• Some adjustments to basic functions;
• Control over the insurance period;
• Availability of organizer functions;
• Possibility to set parameters at which it will be possible to turn on the fan in the cooling system.

Instrument panel VAZ 2114: description of lamps and indicators

There is a moderate number of lamps and indicators, due to the simple design of the car. All indicators are responsible for a separate unit.

Each light bulb indicates the operation of a unique unit.

Important! Depending on the configuration and year of manufacture of the car, warning lamps may have different meanings or appearance; to obtain accurate information, you will need to study the service manual of the car.

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:

1. 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;
2. 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.

Designation of light bulbs and indicators on the instrument panel of the VAZ 2114

The dashboard, by definition, is designed to contain instruments, indicators and switches that could inform the driver about the current state of various vehicle systems, signal an emergency during the operation of the car or the failure of any units, as well as using buttons and switches control individual equipment or mechanisms.

The designation of icons on the instrument panel of the VAZ 2114 is made in accordance with all requirements and standards that call for the unification of symbols so that they are absolutely clear to every driver. The symbols on the instrument panel of a VAZ 2114 with the latest injection engine are located mainly in the lower part of the instrument cluster:

Indicators VAZ 2114

1 - the icon of the light indicating that the oil level in the engine crankcase has dropped below the minimum level, lights up in red;

2 - this light indicates an insufficient level of washer fluid; it lights up orange when the remainder in the tank is less than one liter;

3 - this icon, lighting up in orange, indicates a decrease in the coolant level in the expansion tank with a cold engine below the permissible level;

4 — warning light icon for unlocked doors, lights up red;

5 — fault indicator for “brake lights” or dimensions;

6 - this is a warning light for a malfunction in the brake system, indicating that the brake pads are worn out;

7 - light bulb icon that indicates unfastened seat belts.

On earlier versions of the car, the designation of the light bulbs on the dashboard of the VAZ 2114 in the lower part is slightly different, when viewed from left to right:

Designation of icons on the instrument panel of the VAZ 2114

In addition, car enthusiasts should know what the lights on the VAZ 2114 instrument panel mean, indicating the performance of the lighting equipment or the condition of the engine:

HOW TO USE SUCH DEVICES: BRIEF INSTRUCTIONS

For installed devices, instructions are included for the standard on-board computer of the VAZ 2114. It informs and instructs car owners in detail about what needs to be done in a given situation. Let's talk about how to use the VAZ 2114 on-board computer. To use it correctly you need to:

• These trip computers are highly complex electronic devices capable of performing more than 500 different functions. All this requires the driver to carefully study this device. The instruction manual helps with this. It is good to study it with the information board turned on;
• When studying, the most attention should be paid to the icons and symbols of emergency commands.
• The dashboard has buttons that control the operation of the VAZ 2114 BC. You need to learn and remember the rules for working with them.

When choosing such devices, there are no special requirements for them. The selected model must support programs for the VAZ 2114 ECU. Today, the cost of a VAZ 2114 on-board computer can range from 1,500 to 4,000 rubles. In online stores you can find even lower prices for these products.

It makes no sense to memorize all possible error codes displayed on the information board. They don’t need to be recited by heart like in school. We live in the age of Internet technology, find the designation of these error codes, print them out and carry them with you in the car. If you see the symbols on the information board, you can quickly make the right decision. Continue driving further, or call technical assistance. Unfortunately, there are times when the on-board computer erroneously issues a danger signal. The culprit in such cases may be some sensor or the processor itself. No one is immune from electronic malfunctions, but in most cases, the display indicates reliable information.

Below will be shown the main possible error codes on this machine:

• 2 – on-board network voltage exceeded;
• 3 – problems with the fuel level sensor;
• 4 – malfunction with the sensor that monitors the temperature of the motor;
• 5 – incorrect signal from the outside air temperature sensor;
• 6 – signal about overheated motor;
• 7 – pressure in the vehicle’s lubrication system is too low;
• 8 – problems with the braking system;
• 9 – undercharged battery.

You should respond to codes 4, 6 and 8, which need to be eliminated and only then continue further movement. After elimination, a processor reboot is required. Errors are reset by pressing and holding the daily mileage key.

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.