With the advent of the on-board computer, the life of an ordinary motorist has improved significantly. After all, this device allows you to monitor the state of the main systems and assemblies of the car. In the event of a breakdown of the car, the driver with the help of the BC will be able to quickly detect and eliminate the cause. What other functions does the on-board computer of the VAZ 2114 perform, how to choose and install a device in the "fourteenth"?
Purpose and main functions of the on-board computer
The main purpose of the device is to timely inform the driver about the state of various systems. Modern bookmakers are capable of performing dozens of different tasks. The operation of the automotive device is possible due to its connection to the standard VAZ-2114 control unit using a diagnostic line.
Due to the coded pulses, the following information is displayed on the computer display:
- vehicle speed;
- air and fuel consumption;
- fuel volume in the tank.
All characteristics are flaunted right in front of the driver. At first glance, it may seem that the on-board computer on the VAZ-2114 displays everything that was previously available on the dashboard. But, in fact, this is not entirely true.
Most of the on-board computers installed in cars at the factory have a fairly narrow range of capabilities and do not have the ability to read errors. It is for this reason that many car owners eventually resort to replacing the standard BC.
The software of any computer is several times superior to the capabilities of the control panel. These capabilities especially affect the accuracy of displaying various characteristics. This is far from the only difference between the BC and the dashboard. Next, we will consider all the fundamental differences.
The main differences between the BC and the instrument panel
The computer is able to inform the driver about the actual and average fuel consumption. This information is especially relevant during long journeys. Plus, the BC is able to monitor the temperature of various vehicle systems and inform the driver about the danger of overheating.
Some modern devices also warn the vehicle owner about the possibility of ice formation on the road. All these abilities are deprived of the instrument panel.
The main task of any BC is to collect the most important parameters of vehicle systems, process data and output the final information in a form accessible to the driver.
It is quite obvious that with such an assistant, any trip will become safer, more convenient and more economical in terms of fuel costs. Also, experienced motorists know that the speedometer of any car calculates the engine speed, processes the data obtained and displays the final result. But, if you install larger diameter wheels on the car, the actual speed will increase, but the speedometer will not display this. The on-board computer will protect against such incidents, in contrast to the control panel.
- The display unit of the on-board monitoring system VAZ 2114: ...
- Throttle position sensor VAZ 2114: ...
- Outside air temperature sensor for VAZ 2114: ...
How to choose a quality bookmaker
The main rule when choosing a computer for a car is that the device must support joint work with the ECU. And in the second place, it is necessary to be guided by personal preferences. You should clearly understand for yourself what functionality the device should differ in.
In a VAZ 2114 car, an on-board computer from Multitronics fits in the best way. Among the devices from this company, you can choose the best option for your car.
If BC is needed to display a small number of parameters, then inexpensive models should be preferred.
Today there are a huge number of car gadgets for various purposes. The on-board computer can be universal - to monitor vehicle systems and access the Internet. It can also be highly specialized. Particularly popular today are route BCs, which allow you to build a route using an interactive LCD display, download various maps of the area from the Internet and perform a number of other useful actions.
The price range is wide enough - you can buy a device for 1000 rubles, or you can buy it for 5000 rubles. Of course, more expensive models are endowed with huge functionality. They are able to start the engine to warm up at a certain time, signal low tire pressure, and include a GPS navigation system.
If these functions are not paramount for you, then you should choose an on-board computer from the budget segment and not overpay for functions that will never come in handy.
Instructions for installing the device on a VAZ 2114
It often happens that the standard on-board computer VAZ 2114, which is equipped with luxury cars, does not suit the owner for one reason or another. As mentioned above, standard BCs are much inferior in functionality with modern devices for cars. Or the device may simply not work correctly, fail.
At any time, there may be a need to replace the BC. You can carry out work on dismantling the old device and installing a new one yourself, without resorting to the services of specialists.
The procedure is as follows:
- The first step is to remove the negative terminal of the battery.
- Then you can start dismantling the control panel.
- Disconnect the radio wiring.
- Dismantle the audio system, disconnect the BC clips.
- Disconnect all computer wiring.
- Dismantle all assistive devices and gadgets.
- Install a new computer and assemble in reverse order.
But, before starting work, you must also make sure that your dismantling will not affect the warranty service. If you have a relatively new car and it is covered by the warranty, then it is not recommended to do any work yourself.
Major error codes
A good BC not only displays the necessary information to the driver, but also decodes error codes. If any of the vehicle systems fail, the corresponding error code will be displayed on the computer display. To decipher it and understand what the malfunction is, you need to refer to the documentation, which contains the entire necessary list.
To display the presence of any errors in the system, do the following: reset the mileage for a day and turn on the ignition.
Error code 3 indicates a malfunction of the fuel level sensor.
Code 6 notifies of overheating of the motor, and error 7 can be deciphered as low oil pressure in the system.
