Standard on-board computer VAZ instruction manual. An on-board car computer is the best assistant for monitoring important parameters

How to install and configure the on-board computer on a VAZ 2115?

The operation of a car engine, as is known, depends on the performance and condition of many mechanisms and sensors. And to ensure their synchronous operation, which allows the engine to operate in the most optimal mode, monitor the on-board computer (BK). What is a BC, what is its purpose and how to install an on-board computer for VAZ 2115. The answers to these questions will be found below.

Characteristics of BC

Almost all modern cars are equipped with these devices. As a result of the significant advantages that the installation of BC provides, many domestic motorists resort to installing this device, the cars of which are not equipped with computers.

Business date, meeting

The regular BC “Pyatnashka” is used for:

  • displaying information about the operation and status of the main units on the dashboard;
  • transmission of data on the operation of certain nodes in real time;
  • obtaining information about route parameters;
  • if necessary, using this device you can check the condition of the power unit and then display combinations of errors present in its operation.

basic settings

Briefly about the main parameters of the computer:

  1. The device shows the speed at which the car is moving. You can also use it to determine the remaining fuel in the tank and the driving time at a certain interval.
  2. BC shows the number of engine revolutions.
  3. Thanks to this device driver, you can always find out about the state of the temperature in the cabin, as well as the engine temperature.
  4. The device determines the fuel consumption in a certain area, the kilometers traveled and the number of kilometers the car can transfer with remaining fuel.
  5. In addition, the device allows you to determine the voltage level present in the on-board network vehicle.
  6. As stated above, with the help of aircraft personnel, possible faults present in the power supply can be determined.
  7. Another parameter determined by the computer is the cyclicity of air flow circulation.
  8. Average car speed.
  9. Information about the time when the next TO of the machine will be required.
  10. Information about the need to change certain parameters in the operation of various auto components.
  11. Depending on the model and the data stored in its memory, the device can calculate the next time the car owner will pay for insurance.
  12. Various information from the organizer.

Possible faults

First, let's look at the signs of BC decay:

  1. There are no signals about the operation of the ignition system, injection or other actuators.
  2. There is no response to the operation of the oxygen controller, DUT, throttle sensor, etc.
  3. There is no connection with diagnostic equipment.
  4. Presence of physical damage. burnout of radioactive elements, damage to conductors or housings, etc. (Video author: Pavel Myalik).

Standard on-board computer 2114

Staff overview VAZ on-board computer 2113. 2115 Trip computer reading values ​​How to reset

Staff Onboard Computer 2114 Setting up and HOW TO TURN OFF THE BEEK (buzzer)

Staff On-board computer 2114 Setting up and HOW TO DISABLE Squeak (buzzer) Review and setup of the standard onboard one.

As for the reasons, there can be many of them:

  1. Incorrect operation or malfunction of the high-voltage component of the ignition system. The problem may be with the coil, high voltage cables or spreader.
  2. Moisture on the control unit.
  3. Incorrect “lighting” of a car with a worn-out battery. from a car with the engine running.
  4. Accept mistakes when repairing electrical parts or installing an anti-theft system.
  5. Another reason why the BC could break is. this is the interweaving of polarity when connecting a battery, that is, plus is connected to negative, and minus is connected to plus.
  6. Turning on the starter assembly with the power bus disconnected.
  7. If body welding work has been performed, the cause may be an electrode that has fallen onto the vehicle's wiring or sensors.

Errors and their decoding

Basic error symbols:

  • 2. the voltage in the network is too high;
  • 3. there were problems with the operation of the fuel indicator;
  • 4. a violation of the engine temperature regime has occurred;
  • 6. the engine is overheated, the car must be stopped;
  • 7. Engine oil level is too low in the lubrication system;
  • 8. there is a failure in the brake system;
  • 9. The battery is low.

Guide to Connecting Yourself

Brief instructions for installing and connecting the on-board computer:

  1. First of all, you need to turn off the car's electrical network, this is necessary because otherwise a short circuit may occur during the connection. To turn off power, disconnect the battery.
  2. First remove the car radio and then. center console. For the console, you will see a location to install the BC, this is provided by the manufacturer. All necessary wiring has been brought to this location.
  3. Then remove the plug. After this you will be able to see the wiring harness as well as the connector. You need to connect all the required plugs to the BC. In particular, we are talking about the power cable from the on-board network, the power source when the ignition is activated to start the BC, the power from the general lighting, ground, as well as the fuel level controller. You must also connect the diagnostic line, if you do not do this, the device will not be able to diagnose errors and display them on the display. In addition, after connection, the device must be securely fastened. This is also important, since if the fastening is poor, the aircraft will be subject to vibrations that occur during movement, and this, in turn, can lead to its breakdown.
  4. Reinstall the center console using the radio. This completes the installation procedure. Now you only need to configure BC according to the operating instructions and test it (the author of the video is the flasher channel).

Dismantling

The device is dismantled according to a similar principle:

  1. First, to de-energize the on-board network, you must disconnect the terminals from the battery.
  2. Then the center console is dismantled along with the audio system.
  3. Through the window that appears, you will need to disconnect the power cables from the computer.
  4. The unit is then removed and the center console containing the car stereo is reinstalled.

In terms of specific settings, this procedure will vary depending on the type and model of BC. The modern automotive market offers consumers different types of BK, differing in price and functionality, as well as by manufacturer. Accordingly, because of this, the installation principle of the device may be different. To properly set up your computer, you must carefully study the operating instructions; it will indicate all the main points of this process.

The on-board car computer or the “brains” of the car is the most important element for controlling and monitoring the performance of all the main components of the vehicle. BC is installed on all modern cars today. You can learn more about the principle of operation and types from this material.

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Description of the on-board computer

What is an on-board computer in a car and what tasks does it perform? First, let's look at some theoretical points. The BC is an electronic unit that allows you to react and control various processes in the operation of different car systems. That is, thanks to the BC, the driver will always be able to receive data on the operation of certain components. We figured out what an on-board computer is, now we’ll tell you about its purpose.

What the on-board computer shows:

  • the device demonstrates gasoline consumption in different driving modes;
  • allows you to control the injectors, as well as the vehicle ignition system;
  • monitors the operation of the transmission;
  • can control various additional systems via two-way communication, for example, a rear view camera, etc.;
  • allows you to determine the level of engine fluid pressure and antifreeze temperature;
  • regulates the voltage level in the car’s electrical circuit, monitors the battery charge;
  • if the vehicle is equipped with a climate control system, then the BC controls it;
  • One of the main options - the on-board computer for the car allows, if necessary, to read error codes and show them on the display so that the driver can decipher them and find out where to look for a breakdown.

Principle of operation

The principle of operation of an automobile BC for carburetor engines or injection options is not particularly complicated. The device is connected to a chain of controllers and regulators, reads the necessary data, and then processes the received information. Special software is used for processing. For example, if the BC receives data on fuel consumption according to the scheme, then the software will allow you to calculate the possible mileage with the remaining amount of gasoline.

All data is displayed on a screen installed in the vehicle interior. The display itself can be digital, monochrome, color, or four or three digits. As practice shows, a 2-inch diagonal monochrome screen is quite enough to show the driver more than ten parameters. More modern versions of bookmakers today are equipped with a high-precision liquid crystal screen.

Kinds

Today there are several types of BC:

  1. Universal option Such a device combines various options and gives the car owner the opportunity not only to drive the car, but also to surf the Internet. The main purpose of such a device is to increase comfort for the car owner while driving. Typically, a universal on-board computer has a screen with a diagonal of 6-14 inches; newer models can be connected to a keyboard. It should be noted that in their design, such BCs are very similar to ordinary computer PCs, but one of the features of the devices is the low degree of integration with the car’s electrical system.
  2. Route. The trip on-board computer allows you to determine the driving parameters of the car, and it does not have to be connected via GPS to the satellite. However, newer models are equipped with GPS receivers in any case. Using such a device, the driver will be able to determine the average speed of the car, fuel consumption, remaining distance to a particular point, mileage traveled, etc. In addition, depending on the model that you install in your car, the device may have a function for calculating fuel consumption during emergency braking or rapid acceleration. Typically, BCs of this type are installed in the control panel.
  3. Manager and service bookmaker. The purpose of such computers is to detect breakdowns of the main components of the vehicle and warn the car owner about this. As a rule, such a BC is an integral part of the machine control system, but depending on the model, it can also be an independent device with extensive functionality. When checking a car, all combinations of errors are stored in the device’s memory and will remain there until the error is corrected and the memory is reset (the author of the video is the AvtoGSM channel).

Bookmaker setup

Making an on-board computer with your own hands is a difficult task to accomplish at home. To make a device, you will need many different elements, including a display, a chip, buttons, etc. It is impossible to make a computer on your own without experience in assembling such devices, so if you want the device to work correctly, then it is better to order this procedure or buy a new computer.

If you decide to install an on-board computer for carburetor or injection engines on your car, then you need to know how to configure the device correctly:

  1. If necessary, you can always activate the automatic configuration option - then the device itself will accept the necessary configuration.
  2. If this option does not suit you, then go to the settings menu - find the desired block and select it. It should be noted that in this case the bookmaker must be configured as the main device. One of the important roles in setting is determined by the choice of mode, thanks to which fuel costs will be recorded.
  3. When setting this parameter, you have several options. One of them is a linear dependence, in which case the parameter will always depend on the control unit. If you decide to configure it manually, then first you will need to make a table on fuel consumption. Taking this information into account, the bookmaker will carry out calculations and display the corresponding parameters on the screen.
  4. In addition, you will need to determine the parameters that the screen will begin to display; depending on the model, their number may vary. Separately, we should highlight the parameter responsible for the activation temperature of the engine cooling fan.

Price issue

The minimum cost of a bookmaker from the Multitronics company will be around 130 rubles. More expensive options can cost 7,500 rubles.

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Video “How to make a bookmaker with your own hands”

Detailed instructions for making the circuit are presented in the video (author - channel libral1973).

By the way, it often happens that the on-board computer issues a danger signal for absolutely no reason. The reason for this may be the on-board computer processor or some sensor that is not working correctly. Remember, no one is immune from electronic errors. Nevertheless, in the vast majority of cases, the VAZ-2115 on-board computer works quite correctly.

We present to your attention the most common error codes with their interpretation:

  • 2 – on-board network voltage is exceeded;
  • 3 – fuel level sensor does not work correctly;
  • 4 – the sensor responsible for the temperature regime of the motor is faulty;
  • 5 – outside air temperature sensor transmits warning signals;
  • 6 – motor overheating;
  • 7 – very low pressure is observed in the car’s lubrication system;
  • 8 – some problems were discovered in the braking system;
  • 9 – low battery charge.

If the numbers 4, 6 or 8 appear on the car’s on-board computer while driving, you should immediately stop, fix the problem and only then continue driving. But after this you will need to reboot the processor. The error can be reset by simply holding down the daily mileage key for a few seconds.

What to do if the on-board computer on the VAZ-2115 stops working


Sometimes it happens that even though the car is in full working order, the on-board computer completely refuses to work. What to do in this case?

Of course, you can try to fix the problem yourself. But it’s still much better if a real specialist does this. It is he who will be able to reliably determine the cause of the device malfunction.

But before going to the service center, the first thing to do is check fuse F3, which could simply have blown. It is installed in the power supply circuit of the VAZ-2115 processor. If, after replacing the fuse, the on-board computer still shows no signs of life, you can also check the connectors connected to it. We repeat that if you are not an electrician, and generally do not have much knowledge of electronics, this task should be entrusted to a professional.

Remember, any malfunction that the on-board computer shows can be eliminated, just like a breakdown of the on-board computer itself. But, as they say, it is better to prevent a problem than to solve it later. Therefore, each car should be kept in good condition, undergo technical inspection on time and replace spare parts that are out of order. Among other things, it is better not to allow spare parts to break at all, but to replace them as they wear out. Only in this case will driving the car be safe from a technical point of view, and during the trip there will be no emergency situations associated with improper operation of the car.

The serviceability of your car is a guarantee of the safety of both the driver and passengers.

The standard on-board computer is designed to display travel time, outside temperature, speed, on-board voltage, mileage, total fuel consumption for the trip, fault codes, clock and alarm clock.

Video instruction

Screen legends

Parameters and sequence of switching computer display modes


Download instructions

Route computer 2114-3857010 instructions

Sequencing:

  • disconnect the battery terminals;
  • remove the cover from the “tidy”;
  • provide access to the connector responsible for diagnostics;
  • remove part of the console;
  • connect a meter-long piece of wire (see image below);

Operating instructions for the trip car computer

VAZ 2113-15 (AMK-211501)

Passport RUIB.402253.507-01 PS

Automotive route computer AMK-211501 (hereinafter referred to as the computer) is designed to process sensor signals and display vehicle movement parameters, fuel consumption, ambient temperature, on-board network voltage, timing parameters, diagnostics of electronic engine control systems (hereinafter referred to as ECM), as well as for detection obstacles and indication of the distance to them when the vehicle is moving in reverse (with a connected vehicle parking device).

We ask you to carefully read this passport, which will allow you to fully use the performance qualities of your computer. When purchasing, you must check the absence of external mechanical damage, completeness, presence and integrity of the factory seal, compliance of the serial number of the computer with the number specified in this passport, as well as the passport signed and stamped by the seller. The manufacturer may make minor design changes to the computer that do not impair its quality and reliability, which are not reflected in this passport. on-board computer for VAZ 2114 operating instructions Legal address of the manufacturer: Russia, 305038, Kursk, st. 2-ya Rabochaya, 23, JSC "Schetmash".

ATTENTION: THE COMPUTER IS SUPPLIED TO THE CONSUMER WITH A PROTECTIVE FILM ON THE GLASS OF THE COMPUTER PANEL, WHICH CAN BE REMOVED AT THE WISH OF THE CONSUMER.

1 Product basics and technical data

1.1 The computer is installed on VAZ 2108, VAZ 2109, VAZ-21099, VAZ-2115 cars (hereinafter referred to as VAZ cars) with a carburetor engine or equipped with an ECM with an electronic control unit (hereinafter referred to as the ECU):

  • M1.5.4,
  • M1.5.4N,
  • MP7.0 or January-5.1,
  • GAZ-3110 cars,
  • GAZ-3102 with engines equipped with ECM with ECU: MIKAS 5.4, MIKAS 7.1, 301.3763 ​​000 01.

The computer can also be installed on other types of cars, ensuring that the computer receives vehicle speed and fuel consumption signals with the signal parameters given in Appendix A. To ensure that all computer functions are performed, a car with a carburetor engine must have the following equipment manufactured by OJSC Schetmash:

  • fuel consumption sensor TU 4213-001-00225331-95 (hereinafter referred to as DRT),
  • vehicle speed sensor TU 4228-001-00225331-95 (hereinafter referred to as DSA),
  • external temperature sensor TU 4573-028-00225331-00 (hereinafter referred to as DVT),
  • set of mounting parts RYUIB.402921.501 LLP (RUIB.402921.501-02) (hereinafter referred to as KMCH), purchased by the consumer (if necessary) separately.

To install a computer, a vehicle with an engine equipped with an ECM must be equipped with a set of mounting parts RYUIB.402921.501 TOO (RUIB.402921.501-03) (hereinafter referred to as KMCh1) and DVT manufactured by OJSC "Schetmash", purchased separately by the consumer.

The GAZ-3110 car with ECU MIKAS 5.4, MIKAS 7.1, 301.3763 ​​000 01 must be equipped with a set of mounting parts RYUIB.402921.501 TOO (RUIB.402921.501-06) (hereinafter referred to as KMCh2) produced by OJSC "Schetmash", purchased separately by the consumer.

To use the “Parking” function, the car must be additionally equipped with a car parking device RYUIB.453688.501 manufactured by OJSC “Schetmash”, which is purchased separately by the consumer. on-board computer for VAZ 2115 instructions

1.2 The computer displays the following parameters:

  • current time of day;
  • travel time excluding stops;
  • total travel time;
  • calendar;
  • alarm;
  • current fuel consumption;
  • average fuel consumption per trip;
  • total fuel consumption for the trip;
  • mileage on remaining fuel;
  • fuel level in the tank;
  • trip mileage;
  • average travel speed;
  • temperature outside;
  • instant speed;
  • on-board network voltage;
  • the presence of an obstacle and the distance to it when the vehicle is moving in reverse.

The parameters and sequence of switching computer display modes are given in Appendix B. The computer receives and displays diagnostic information from the ECM and performs the following ECU diagnostic functions:

  • — reading fault codes; — resetting all accumulated fault codes of the ECU;
  • — reading a set of ECU parameters; — reading the identification data of the ECU (the function is not available when selecting an ECU type MIKAS 5.4, MIKAS 7.1, 301.3763 ​​000-01).

The computer receives information about the distance to the obstacle from the car parking device. The computer receives signals coming from sensors installed in the car: DSA, DRT, DVT and fuel level sensor (hereinafter referred to as FLS). The parameters of the sensor output signals are given in Appendix A.

The computer is designed to operate in a direct current circuit with a rated supply voltage of 12 V DC in accordance with GOST 3940 84.

The operating supply voltage range is from 10.8 to 15.0 V.

Maximum computer current consumption at a supply voltage of 13.5 V and no sound signal in the operating temperature range, A, no more than:

— with the ignition off and no backlight voltage on pin “6”……….……………….…… 0.015;

— when the “backlight” mode is turned on ……….……………….…… 0.160.

The operating range of ambient air temperature is from minus 4 0 to plus 60 o C.

Overall dimensions, mm, no more than …………………………… 238x50x56.

Weight, kg, no more than ……………………………………..……………… 0.4.

2 COMPLETENESS

Automotive route computer AMK 211501 - 1 pc. Route computer AMK 211501. Passport - 1 copy. Packaging - 1 pc.

3 SETTING UP THE ON-BOARD COMPUTER

3.1 Computer structure

A general view of the front panel of the computer is shown in Figure 1.

The computer has a case, on the front of which there is a panel with a liquid crystal display (hereinafter referred to as the indicator) and ten keys for controlling the computer. On the rear wall of the case there is a connector for connecting the vehicle harness. Seven keys serve to select the desired function group and select functions within the group and are labeled as follows:

“T”, “KM/N”, “KM”, “L”, “L/100”, “ECU”, “N”.

The “START” key is intended to determine the start of a trip and reset accumulated parameters, to fix the parameter value in the correction mode and to set or remove the parameter control mode.

The “+” and “—” keys are used to increase or decrease the parameter value in the parameter correction mode and to view diagnostic information.

The map for switching display modes is given in Appendix B. When the ignition is turned off, the current time of day is displayed on the indicator; the previously set alarm clock will sound a sound signal at the appointed time.

To reset the alarm beep, press the “START” key.

Pressing any key except the “-” and “+” keys turns on the indicator backlight. The type and combination of icons displayed on the indicator, as well as the symbols of the units of measurement of the parameters, determine the selected function.

Indication of parameters: “Current time of day”, “Trip time excluding stops”, “Total trip time” is accompanied by a flashing dot.

When the alarm clock is set, the current time indication is accompanied by a bell symbol.

The computer monitors the following parameters:

  • — maximum vehicle speed;
  • — on-board network voltage;
  • - vehicle mileage with remaining fuel in the tank.

When the controlled parameter goes beyond the set value: maximum speed from 20 to 200 km/h depending on the setting, mileage with remaining fuel less than 50 km, on-board voltage below 10.8 V or above 14.8 V, the “bell” symbol starts flash and a sound signal is generated: for the first two parameters, a duration of 3 s and a 15 s pause, the sound signal is repeated twice.

If the voltage of the on-board network deviates, a sound signal is generated with a delay of 10 s and has a duration of 5 s and a pause of 5 s, the sound signal is repeated three times. The sound signal is accompanied by the display of the value of the controlled parameter on the indicator. The sound signal is reset using the “START” key. After the sound signal is reset, the indication of a parameter that has gone beyond the set value is accompanied by a flashing “bell” symbol. When the parameter returns to normal, the alarm stops. To set or remove the parameter control mode, you must use the “START” key to set or reset the “bell” symbol in the display mode of the controlled parameter.

For example, to set the speed control mode, you need to use the “KM/H” key to enter the “Instantaneous speed” mode and use the “START” key to set the “bell” symbol on the indicator. Resetting or setting a sound signal for confirming key presses is performed in the display mode of the parameter “Travel time without taking into account stops” by pressing the “START” key.

The parameters: “Average trip speed”, “Average fuel consumption per trip”, “Mileage on remaining fuel” are displayed when the following conditions are met: the “Trip mileage” parameter is more than 1 km and the “Trip time excluding stops” parameter is more than 1 minute, up to If these conditions are met, the symbols “ — — — — ” are displayed on the indicator. To reset all accumulated parameters: “Trip time excluding stops”, “Total trip time”, “Total fuel consumption for the trip”, “Trip mileage”, in the display mode of one of these parameters, press and hold the “START” key for more than 4 s until a two-tone beep appears.

After resetting, it is necessary to check the state of the mode indicator (presence or absence of the “bell” symbol) in which the reset was performed, since it may change its state. If there is no DVT or a malfunction in its circuit, in the display mode of the “Outside Temperature” parameter, the symbols “Co” are displayed on the indicator.

3.2 Setting timing parameters

Parameter reading correction mode:

  • "Current time of day"
  • "Calendar",
  • The “alarm clock” is turned on and reset by the “START” key.

The adjusted digits of the parameter are marked by blinking. Use the “+” or “-” keys to set the required parameter value. When you hold down the “+” or “-” keys for more than 0.5 s, the auto-repeat mode is activated. Setting the clock using precise time signals is done as follows: in the display mode of the “Current time of day” parameter, press and release the “START” key and, at the sixth signal of the exact time, press the “H” key, and the digits of minutes and seconds are reset to zero. If the value of the “Current time of day” parameter coincides with the set value of the alarm clock, three melodic sound signals are issued, each lasting 30 seconds with a period of 1 minute. Resetting the alarm setting is carried out as follows: in the “Alarm clock” parameter display mode, press and release the “START” key and then press the “H” key. In this case, the symbols “ ” appear in the digital digits, and in the display mode of the “Current time of day” parameter there is no “bell” symbol.

3.3 Clock correction

To reduce the clock error, it is possible to introduce a correction factor. To do this, in the display mode of the “Current time of day” parameter, press and hold the “START” key for 2 s - the symbol “C” and the blinking value of the correction factor will appear on the indicator. Use the “+” or “—” keys to enter the required coefficient value and press the “START” key to exit the correction mode. Are the maximum values ​​of the correction factor equal? 31. One unit of the correction factor is equal to a change in the clock speed by 0.35 s per day for positive values ​​and 0.18 s per day for negative values.

3.4 Setting the speed limit

The maximum speed setting mode is entered by pressing the “START” key in the “Average travel speed” parameter display mode. In this case, a flashing value of the maximum speed appears on the indicator, when exceeded, an audible warning signal is generated. The speed limit value is changed using the “+” or “-” keys in 5 km/h increments from 20 to 200 km/h. Exit from the installation mode is done by pressing the “START” key.

3.5 Indicator backlight operating modes

When the instrument lighting is on, the illumination level is adjusted using the vehicle instrument scale illumination regulator. With the instrument lighting turned off and the ignition on, the backlight level is adjusted in the following sequence: in the “Total travel time” parameter display mode, press and release the “START” key. In this case, all single segments (pictograms) will be displayed on the indicator, which is a sign of the backlight level adjustment mode, and the digital digits will display a number corresponding to the backlight level as a percentage of the maximum value. Use the “+” or “-” keys to set the required backlight level. Each time you press the keys, the backlight level changes by 5%. When you hold down the keys for more than 0.5 s, the auto-repeat mode is activated. The set backlight level is maintained until the next correction. To exit the adjustment mode, press the “START” key.

3.6 Setting the fuel level

Setting the fuel level table

Tables of FLS readings with a resolution of 3 liters are entered into the computer memory (fuel level values ​​at intermediate points are calculated by interpolation). Depending on the type of car and the type of instrument cluster installed on the car, for the computer to correctly indicate the fuel level in the tank, you must install one of the fuel level tables stored in the computer memory. The car can be equipped with electromechanical type instrument combinations that generate a fuel level output signal with a maximum voltage of more than 5 V, or electronic instrument combinations that generate a fuel level output signal with a maximum voltage of up to 5 V (a distinctive feature of these instrument combinations is the presence of a liquid crystal odometer indicator) . The procedure for setting the type of instrument cluster and the corresponding fuel level table is as follows:

a) disconnect the “Battery” circuit (remove the “-” terminal of the battery or disconnect the harness connector from the computer);

b) press one of the following keys to select the type of instrument cluster: — “L” instrument cluster of electromechanical type; - “L/100” – electronic instrument cluster; — “KM” instrument cluster of the GAZ-3110 car;

c) while holding the selected key, connect the “Battery” circuit (connect the harness connector to the computer) and after a period of 2 seconds, release the key.

3.7 FLS calibration

Due to the fact that the vehicle's FLS has a large technological spread of parameters, to increase the accuracy of the fuel level readings, the computer provides a correction mode for the FLS readings table (taring).

ATTENTION! BEFORE STARTING CARRIATION, YOU MUST CHECK THAT THE FUEL LEVEL SIGNAL IS CORRECTLY CONNECTED TO THE COMPUTER AND SET THE CORRECT TYPE OF INSTRUMENT COMBINATION.

The calibration procedure can be carried out independently at the request of the owner.

  1. To do this, it is necessary to drain the gasoline from the tank, leaving the minimum volume of fuel required for the operation of the gas pump (for VAZ cars it is 3 liters) - this volume is then taken as the zero level.
  2. Then enter the display mode of the “Fuel level in the tank” parameter, press and hold the “START” key for 2 s, and the flashing number “0” will appear on the indicator.
  3. Press and hold the “L” key for 1 second until a sound signal appears confirming the memorization of information. After this, a flashing number “3” will appear on the indicator.
  4. Fill the gas tank with 3 liters of gasoline using a measuring container, wait the time required to set a constant fuel level, press and hold the “L” key for 1 s until a confirmation sound appears. A flashing number “6” will appear on the indicator.
  5. Next, to continue taring, you must repeat the procedure described above, each time adding 3 liters and then pressing the “L” key. In this case, it is necessary to ensure that the total amount of fuel in the tank corresponds to the value on the indicator for a specific calibration stage.
  6. To complete the calibration mode after recording the last fuel level value, you must press the “START” key, turn off and turn on the ignition.

Note – The maximum possible value of the fuel level during calibration is 72 l.

3.8 Computer operation in diagnostic mode

3.8.1 Reading fault codes

Entering the mode by pressing the “ECU” key for the first time. The symbols “En.NN” will appear on the computer indicator, where NN is the total number of fault codes accumulated in the ECU memory. The “+” and “—” keys select the fault number. For an ECU installed on a VAZ family car, the fault number is displayed on the indicator as a combination of symbols “EX.NN”, where EX is the fault status, NN is the fault number. Example - E0. 1. The values ​​of the fault code status for the MP7.0 ECU are shown in Table D.3.2. For an ECU installed on a GAZ family vehicle, the fault number is displayed on the indicator as a combination of symbols “ENNN”, where NNN is the fault number. If the total number of faults is 0, then fault numbers are not displayed. The display switches to viewing the fault code and back (to viewing the fault number) by briefly (lasting less than 1 s) pressing the “START” key. The “+” and “-” keys are used to view all fault codes. Possible meanings of fault codes are given in Appendix D.

3.8.2 Resetting fault codes

Resetting all fault codes accumulated in the computer’s memory is done by pressing and holding the “START” key for 2 seconds in the mode of displaying fault codes or numbers.

3.8.3 Selecting the ECU type

The computer can be installed on cars with engines equipped with various types of ECUs. To select the ECU type, you must enter the ECU parameters display mode (if there is no connection with the ECU, the “RS.-” symbols and a flashing “bell” symbol will be displayed on the computer indicator), press and hold the “START” key for 2 s until the indicator of the “ECU” symbol and a flashing number indicating the type of ECU. Use the “+” or “—” keys to select the required ECU type and exit the mode by pressing the “START” key. To establish communication with a new type of ECU, turn off and then turn on the ignition. When selecting the ECU type, the indicator displays:

  • — “ECU.0” — M1.5.4;
  • — “ECU.1” — M1.5.4N or January-5.1;
  • — “ECU.2” — MP7.0;
  • — “ECU.3” — MIKAS 5.4, MIKAS 7.1, 301.3763 ​​000-01.

3.8.4 Reading ECU parameters

The mode is entered using the “ECU” key. The indicator displays the symbols “Rs. 1 ", where Рс is an indication of the ECU parameter number, and 1 is the parameter number. The “+” and “—” keys select the parameter number. Switching the display to view the parameter value and back (to view the parameter number) is carried out by briefly (lasting less than 1 s) pressing the “START” key. Use the “+” and “-” keys to view all parameters. The list of ECU parameters displayed on the computer indicator is given in Appendix D.

3.8.5 Reading ECU ID(function not available when selecting ECU type MIKAS 5.4, MIKAS 7.1, 301.3763 ​​000-01)

The mode is entered by pressing the “ECU” key. The indicator displays the symbols “Cu. 3 ", where Cu is an indication of the identification data number, and 3 is the data number. Switching the display to view the data value and back (to view the data number) is carried out by briefly (lasting less than 1 s) pressing the “START” key. The “+” and “-” keys are used to view all data. The list of ECU identification data displayed on the computer indicator is given in Appendix D.

3.9 Parking function

3.9.1 Parking function performed only when the car parking device is connected to the computer. After the vehicle is engaged in reverse gear and the ignition is on, the inscription “rdy” (short for English ready) appears on the indicator for 1 second and three short beeps sound. This means that the car parking device is working properly and is ready for use. If an obstacle is not detected, then the symbols “—-” are displayed in the digital digits of the indicator. If the distance to the obstacle is between 40 and 170 cm, then the distance in centimeters is displayed on the indicator. The direction towards the obstacle is shown by the indicator symbols located below the digital digits: “< » — препятствие расположено слева от автомобиля; « >"—the obstacle is located to the right of the vehicle. If the obstacle is located in the center of the vehicle, both symbols are displayed.

3.9.2 Indication of distance to obstacles accompanied by sound signals (if the “bell” symbol is set on the indicator), which become more frequent as the obstacle approaches. At a distance to the obstacle from 170 to 90 cm, the frequency of sound signals is 3 signals/s, from 90 to 60 cm – 5 signals/s, from 60 to 40 cm – 8 signals/s. When the distance to the obstacle is less than 40 cm, the sound signal becomes continuous and the inscription “StOP” appears on the indicator. Sound signaling when indicating the distance to an obstacle can be allowed (there is a “bell” symbol on the indicator, flashing at a frequency of 1 Hz) or prohibited (there is no “bell” symbol). Resetting and setting the “bell” symbol is carried out by long pressing (more than 2 s) the “START” key. When the “bell” symbol is installed, the sound signal can be turned off until the end of the vehicle’s reverse mode by briefly (lasting no more than 1 s and no less than 0.3 s) pressing the “START” key - the “bell” symbol stops flashing.

3.10 Auxiliary computer operating modes

3.10.1 Correction of fuel consumption readings. Computer readings of fuel consumption parameters may differ from actual values ​​for various reasons: DRT error in cars with a carburetor engine, pressure deviation in the fuel rail, or clogged injectors in cars with an engine equipped with an ECM.

To correct fuel consumption readings, you must enter the “Current fuel consumption” display mode, press and hold the “START” key for 2 s until the correction factor value appears on the indicator flashing.

The nominal value of the correction factor is 100 (in percent). The coefficient value is changed using the “+” or “-” keys, while a larger coefficient value corresponds to an increase in fuel consumption readings, and a smaller value corresponds to a decrease in fuel consumption readings.

To exit the correction mode, press the “START” key.

The correction factor can be determined as follows.

  1. Exhaust fuel to a certain value indicated by the computer's fuel level.
  2. Pour a measured amount of fuel into the tank - for example, 20 liters.
  3. Reset the total fuel consumption readings in the computer, for which, in the “Total fuel consumption” display mode, press and hold the “START” key for 4 s until a two-tone sound signal appears.
  4. Use all the added fuel to the original fuel level reading.
  5. Note the total fuel consumption readings - for example, 25 liters.
  6. Calculate the value of the correction factor: (20/25) x 100 = 80.
  7. Enter the calculated value of the correction factor into the computer. The range of correction factor values ​​is from 50 to 255.
  8. After this, reset the fuel consumption readings.

3.10.2 Correction of on-board voltage readings

The on-board voltage readings are adjusted during the computer manufacturing process and after computer repairs associated with replacing the lithium battery.

To carry out the correction you need:

  • In the “On-board network voltage” indication mode, press and hold the “START” key for 2 s until the voltage value appears flashing.
  • Using the “+” or “-” keys, set the voltage value equal to that measured by a digital voltmeter at pin “3” of the computer connector.
  • Exit the correction mode by pressing the “START” key.

3.10.3 Checking the software version number

To check the version number of the computer software, you need to press the “ — ” key and while holding it, turn on the ignition. The symbols “PR55” will appear on the indicator - where the first digit 5 ​​determines the type of computer (AMK-211501), and the second digit 5 ​​is the current software version number (may differ upward).

4. Installing a computer on a car

The names of the signals and numbers of contacts of the computer plug are given in Table 1.

Table 1

Signal name

Signal designation

Plug pin number
DRT output signal
Diagnostic bus “K-line”
Powering the computer through the ignition switch
DVT output signal
Powering the computer from a battery
Turning on the "backlight" mode
Frame
FLS output signal
DSA output signal

A description of the computer contacts is given in Table 2

table 2

Fuel consumption signal input. A rectangular pulse signal with a frequency proportional to fuel consumption. The signal source is contact “2” of the DRT or contact “54” of the ECU (fuel injection controller) type M1.5.4 (January-5.1) or contact “32” of the ECU of type MP7.0.
Line “K” diagnostics. The contact is connected to the contact " M» diagnostic pads for VAZ cars or contact « 11 » diagnostic pads for GAZ cars. Through this line, the computer exchanges information with the ECU. Data is transmitted in the form of a series of pulses with an amplitude from a low level (0 V) to the on-board network voltage. The line passes through the contacts " 9 " And " 18 » control unit of the automobile anti-theft system (hereinafter referred to as APS), which must be closed in its absence or when the APS is not activated. The “K-line” signal from the car parking device is connected to this contact.
Voltage input from ignition switch. The signal from the ignition switch does not provide power to the computer; it informs the computer that the ignition is on. Used to measure on-board network voltage.

Continuation of table 2

DVT signal input. The computer sends a +5 V voltage through this circuit through an internal resistor to the DVT, which is a thermistor with the second terminal connected to ground. The sensor changes resistance depending on temperature.
Non-switchable voltage input. Constant power supply to the computer from the vehicle's on-board network. The voltage comes through the fuse.
Voltage input for vehicle instrument panel illumination circuit. The signal controls the brightness of the computer indicator backlight.
Frame. The contact is connected to the car body (ground). The voltage at the contact should be close to zero.
Fuel level input. The contact is connected in parallel to the vehicle's FLS signal circuit. Connection location: car instrument cluster connector. The signal voltage value is used to calculate the fuel level depending on the type of instrument cluster and the installed fuel level table.
DSA signal input. A rectangular pulse signal with a frequency proportional to the speed of the vehicle. The signal comes from contact “2” of the vehicle’s DSA or from the output of the instrument cluster (speed signal for the computer) or from contact “9” of an ECU type M1.5.4, January-5.1, MP7.0.

4.1 Installing a computer on a car with a carburetor engine

The computer is installed inside the car in a special slot on the instrument panel (Figure 2) or in any place convenient for observation, taking into account the optimal viewing angle of the indicator, corresponding to the position of the clock hand at 10 hours 30 minutes (to the left and top of the perpendicular to the plane of the indicator), using bracket included in the KMC. Connect the computer and sensors to the car according to Figure 2 using the CMC (positions indicate the elements of the CMC):

  1. Screw V.M6-6g x14.58.016 GOST 1491-80 - 2 pcs
  2. Nut M6.58.016 GOST 5927-70 - 2 pcs.
  3. Washer 6.01.10.016 GOST 11371-78 - 4 pcs.
  4. Hose (outer diameter 14.5 mm) - 2 pcs.
  5. Clamp (inner diameter 14.5 mm) - 2 pcs.
  6. Nut (square) - 4 pcs.
  7. Screw V.M4-6g x12.58.016 GOST 1491-80 - 4 pcs.
  8. Washer 4.01.10.016 GOST 11371-78 - 8 pcs.
  9. Hose (outer diameter 10 mm) - 1 pc.
  10. Plug - 1 pc.
  11. Clamp (inner diameter 10.5 mm) - 2 pcs.
  12. Block X3 - 1 pc.
  13. Harness - 1 pc.
  14. Block X6 - 1 pc.
  15. Bracket - 1 pc.

4.1.1 Installation of DSA

To install DSA, you must perform the following operations:

  • — disconnect the flexible shaft of the speedometer cable from the gearbox speedometer drive;
  • — attach to the speedometer drive of the DSA gearbox with a tightening torque of 6 to 8 Nm;
  • — connect the flexible shaft of the speedometer cable to the DSA output shaft, having previously twisted the protective cap from the DSA.

4.1.2 Installation of DRT

To install the DRT, you must perform the following operations:

  • — secure the DRT using fasteners pos. 1, 2, 3 on the car body in the engine compartment so that the “Output” pipe of the DRT is located horizontally and below the carburetor fuel supply pipe at a distance of 10 to 20 mm;
  • — remove the hose connecting the fuel pump and carburetor;
  • — install hoses pos. 4, connecting the fuel pump with the “Input” pipe DRT and the “Output” pipe DRT with the carburetor inlet fitting using fasteners pos. 5, 6, 7, 8;
  • — remove the hose from the outlet fitting of the carburetor return line and install it on the “Return” pipe of the DRT;
  • — put the hose pos. 9 with plug pos. 10, securing it with fasteners pos. 6, 7, 8, 11, to the outlet fitting of the carburetor return line.

Note - When installing DRT on vehicles whose fuel system does not have a return line, plug pos. 10 install on the “Return” pipe of the DRT.

4.1.3 Installation of DVT

Install the DVT inside the front bumper in a hole with a diameter of 12 mm on its lower plane on the left in the direction of travel of the car.

4.1.4 Connecting the computer to the car circuits

Connect the computer and sensors to each other and to the electrical equipment of a VAZ 2108, VAZ 2109 car in the following sequence:

  • — open the hood of the car. Disconnect the wire from the “-” terminal of the battery;
  • — remove the handles from the levers of the control panel for the interior ventilation and heating system. Unscrew the four self-tapping screws securing the instrument panel console trim and remove it from the instrument panel;
  • — remove the socket contacts of the red-black and orange wires from the hazard warning switch block (circuits “15/1” and “30”) and connect them using the block pos. 12 (“X3”) to the plug “X2” of the harness pos. 13. In place of the socket contacts removed from the hazard warning switch block, connect socket contacts “5” (circuit “30”), “3” (circuit “15/1”) of the harness pos. 13;
  • — disconnect the two-terminal block of the vehicle’s wiring harness of white and black colors, suitable for the illumination lamp of the levers of the ventilation and heating system control panel, and connect to them the corresponding two-terminal blocks “X8”, “X9” of the harness pos. 13 with white and black wires;
  • — disconnect the wire with a socket contact coming from the FLS from the instrument cluster block in accordance with the vehicle’s electrical diagram and connect it using the block pos. 14 (“X6”) to the block “X5” of the harness pos. 13. In the socket of the instrument cluster block, instead of the removed wire, install socket contact “8” of the harness, pos. 13;
  • — unscrew the two nuts securing the mounting block and lift it up until a gap forms between its body and the rubber gasket, into which to pass wires with two three-terminal blocks “X1” DRT and “X7” DSA from the passenger compartment to the air supply box. Place and secure the mounting block;
  • — squeeze the rubber seal out of the hole in the center of the partition of the air intake box and the engine compartment. Insert the sensor wires into the resulting hole. Cut the rubber seal from edge to center, insert the sensor wires into the cut and install the seal in place;
  • — connect the harness pads pos. 13 to the sensors: block “X1” to the DRT, and “X7” to the DSA. Connect the DVT to the “AMP” block of the harness, pos. 13. Connect the nine-terminal block “XS” of the harness, pos. 13. Insert the computer into the slot on the instrument panel. Depending on the type of instrument cluster, set the fuel level table in accordance with 3.6.

4.2 Installing a computer on a VAZ car with an engine equipped with an ECM

Connect the computer to a VAZ car with an engine equipped with an ECM according to Figure 1 using KMCh1 (positions indicate the elements of KMCh1):

  1. Block X3 - 1 pc.
  2. Block X6 - 1 pc.
  3. Harness - 1 pc.
  4. Bracket - 1 pc.

Socket contact “1” of harness pos. 3 (fuel consumption signal circuit) connect to the vehicle harness connector connected to the ECM, in accordance with the vehicle electrical diagram. Socket contact “9” of harness pos. 3 (circuit with a signal from the DSA), connect to the instrument cluster (if there is an output for connecting a computer) or to the vehicle harness connector connected to the ECM. Plug “X10” harness pos. 3 is connected to the “M” contact of the vehicle diagnostic block.

Note – If the car does not have an alarm system installed, then in the block of the alarm system control unit it is necessary to install a jumper between contacts “9” and “18”. Connect the DVT, FLS, as well as power and lighting circuits in the same way as 4.1.4 or in accordance with the vehicle’s electrical diagram and the purpose of the signals given in Table 1.

Connect the nine-terminal block “XS” of the harness, position 3, to the computer.

Insert the computer into the slot on the instrument panel. Depending on the type of instrument cluster, set the fuel level table in accordance with 3.6.

For a VAZ-2115 car produced after January 1, 2002, with an engine equipped with an ECM, the computer is installed in its standard place without using KMCH1. Connection to the vehicle circuits is made to the vehicle harness block, located in the niche for installing the computer.

Note - the DVT installed in VAZ 2115 cars can only be used in conjunction with one of the devices: the instrument cluster or a computer, while the DVT circuit from the device in which this DVT is not used must be disconnected.

4.3 Installing a computer on a GAZ-3110 car

Installation of the computer on a GAZ-3110 car with ECU MIKAS 5.4, MIKAS 7.1, 301.3763 ​​000-01 is carried out using KMCH2, which includes Harness RYUIB6.640.786 and Bracket RYUIB6.133.502-01. The computer is installed using a bracket inside the car in a place convenient for observation, taking into account the optimal viewing angle of the indicator, corresponding to the position of the arrow at 10 hours 30 minutes (to the left and top of the perpendicular to the plane of the indicator).

4.3.1 Installation work to connect the computer to the circuits of GAZ-3110, GAZ-3102 cars using KMCH2, carry out in accordance with Figure 3 as follows.

  • Unscrew the four fastening screws and remove the trim of the instrument cluster by lifting it towards you.
  • Mark and disconnect the connectors for the central light switch and headlight range control. Remove the four screws securing the instrument cluster.
  • Turn the instrument cluster 90 0 and remove it from the instrument panel. Disconnect the vehicle harness connectors from the instrument cluster.
  • Remove socket contact “7” from the vehicle harness block “XP2”, insert it into the “X7” block included in the KMCh2 and connect it to the “X6” block of the KMCh2 harness.
  • Insert socket contact “6” into socket “7” of the “XP2” block. Remove socket contact “5” from the vehicle harness block “XP1”, insert it into the “X8” block and connect it to the “X5” block of the KMCH2 harness.
  • Insert socket contact “8” into socket “5” of the “XP1” block. Remove socket contact “2” from the car harness block “XP3”, insert it into the “X3” block and connect it to the “X10” block of the KMCH2 harness.
  • Insert socket contact “3” into socket “2” of the “XP3” block.
  • Remove socket contact “10” from the harness block of the “XP3” vehicle, insert it into the “X11” block and connect it to the “X9” block of the KMCH2 harness.
  • Insert socket contact “9” into socket “10” of the “XP3” block.
  • Pull the wire from contact “2” of the “XS” block of the KMCH2 harness through the rubber seal into the engine compartment of the car to the diagnostic block located on the front panel to the right of the driver.
  • Strip the insulation from a 5 mm long section of wire (gray with red stripes) connected to contact “11” of the diagnostic block at a distance of 3 cm from the contact. Using the wrapping method, connect the wire to the stripped area and insulate it with PVC tape.
  • Install the DVT into a hole with a diameter of 12 mm on the front bumper of the car on the left in the direction of travel. Pull the “X4” connector with the wires through the rubber seal into the engine compartment and then connect it to the DVT connector.

  • Connect the short wire from the “X4” connector to the car body under one of the screws.
  • Remove the two lower screws securing the front ashtray panel.
  • Open the ashtray and unscrew the two top screws securing the front ashtray panel.
  • Pull the front ashtray panel towards you.
  • Disconnect the cigarette lighter plugs.
  • Connect the pin block “X2” of the KMCH2 harness to the cigarette lighter connector socket included in the vehicle harness.
  • Connect the cigarette lighter plug to the “X1” socket of the KMCH2 harness.
  • Connect the “XS” connector of the KMCH2 harness to the computer connector. Install the cigarette lighter panel and instrument cluster in their places. 4.3.2 Set the type of instrument cluster for GAZ-3110 vehicles in accordance with 3.6.

4.3.3 Select controller type ECU–3 (ECU.3) in accordance with 3.8.3.

4.4 Installing a car parking device

The car parking device consists of a control unit to which a pulse sensor R (right), a pulse sensor L (left) and a harness X1 are connected, as well as a bracket for attaching the sensors to the car (at the discretion of the consumer).

The control unit should be installed in the car interior or in the luggage compartment, the sensors should be installed on the rear buffer of the car.

Connect the car parking device to the car circuits in accordance with Figure 4.

  • Route the wires of the power supply harness of the car parking device from the control unit to the computer installation location. Remove the female contact of socket “7” from block “C” of the harness connecting the computer to the car circuits, remove the housing “X6” from the female contact of the black wire of the power harness of the car parking device and place it on the socket contact removed from block “C”, connect the female contact in the “X6” housing with the “X5” plug.
  • Insert the socket contact of the black wire of the power harness of the car parking device into socket “7” of block “C”.
  • Connect the short red wire to the power supply circuit of the reversing lights; leave the red wire with the socket contact in the “X8” housing unconnected.
  • Remove the socket contact of socket “2” from the block “C” (if there is one), remove the housing “X7” from the socket contact of the green wire of the power harness of the car parking device and place it on the socket contact removed from the block “C”, connect the socket contact in the “X7” housing with the “X9” plug.
  • Insert the socket contact of the green wire of the power harness of the car parking device into socket “2” of block “C”.
  • After completing the installation operations, connect the detachable connectors to the control unit in accordance with Figure 4.

5 List of possible malfunctions and methods for eliminating them

The list of possible malfunctions and methods for eliminating them are given in Table 3.

Table 3

Name of the malfunction, external manifestation and additional symptoms

Probable cause of the malfunction

Troubleshooting method
There is no indication of the “Current time of day” parameter when the voltage of the “Battery” circuit is connected ("thirty") "5" computer pads
After turning on the ignition switch, only the display mode of the “Current time of day” parameter works.Malfunction in the contact circuit "3" computer padsCheck the wires and their connections, replace damaged wires or contacts
Failures in computer readingsUnreliable contact in computer wire connection circuitsCheck and restore reliable contact in the wire connection circuit
Flashing numbers on the indicatorCorrection mode for one of the parameters is turned onPress the " START»
There is no indication of the “Current fuel consumption” parameter, and the indication of the “Total fuel consumption for the trip” parameter does not increaseMalfunction in the contact circuit "1" computer pads, lack of signals from DRT or fuel injection controllerCheck the wires and their connections, replace damaged wires or contacts and, if necessary, sensors
There is no indication of the “Instantaneous speed” parameter, the indication of the “Current fuel consumption” parameter is only in l/h at a speed of more than 20 km/hMalfunction in the contact circuit "9" computer pads, lack of signal from DSACheck the wires and their connections, replace damaged wires, contacts or DSA
The voltage readings on the on-board network differ significantly (to a lesser extent) from the voltage on the batteryLarge voltage drop across the ignition switch contactsClean the ignition switch contacts

6 Transportation and storage

The computer is transported by any type of transport that ensures its safety from mechanical damage and precipitation, in accordance with the rules for the transportation of goods in force for this type of transport. The conditions for transporting the computer correspond to group C of GOST 23216 78 in terms of mechanical influences and group 2 C of GOST 15150 69 in terms of exposure to climatic factors. The computer should be stored in the manufacturer's packaging under 2 C conditions in accordance with GOST 15150 69. The period of transportation of the computer from the manufacturer to the consumer should not exceed 9 months from the date of manufacture of the product. The countdown is based on the product labeling.

7 Manufacturer's warranty

The manufacturer guarantees that the computer complies with the requirements of TU 4573 043 00225331 01 provided that the consumer complies with the conditions of transportation, storage and operation established by this passport.

The warranty period for the computer is 12 months from the date of sale.

The warranty period for storing a computer in the manufacturer's packaging, subject to the requirements established by this passport, must be at least three years from the date of manufacture.

Appendix A (for reference) Parameters of sensor output signals

A.1 The computer ensures reception of a signal from the DSA with the following parameters:

— conversion coefficient (number of pulses per meter of distance traveled)………. 6;

— low-level input voltage, V, no more than ......... 0.8;

— high level input voltage, V, not less than......4.0;

— fill factor Q = (50 ± 30)%;

— duration of the leading (back) edge of the pulse, μs, no more than...50.

The electrical circuit for connecting the DSA to a computer is an open collector n-p-n transistor.

A.2 The computer receives a signal from the DRT or fuel injection controller with the following parameters:

— conversion factor (number of pulses per liter of flowing fuel)……….. 16,000;

— low-level input voltage, V, no more than ……… 1.0;

— high level input voltage, V, not less than...... 9.6 (or 0.8 UA, where UA is the voltage on the + 12 V bus of the fuel injection controller);

— fill factor from 30 to 70%.

The electrical connection diagram is an open collector n-p-n transistor with a load resistor to the + 12 V bus of the fuel injection controller.

A.3 DVT parameters are given in Table A.1.

Table A.1

Continuation of Table A.1

A.4 The parameters of the FLS signal of the electromechanical instrument cluster for VAZ cars at a supply voltage of 13.5 V are given in Table A.2.

Table A.2

A.5 The dependence of the FLS resistance on the fuel level in the tank of a car with an electronic instrument cluster is shown in Table A.3.

Table A.3

Fuel volume in tank, l

FLS resistance, Ohm

A.6 The parameters of the FLS signal of the instrument cluster for GAZ-3110 vehicles at a supply voltage of 13.5 V are given in Table A.4.

Table A.4

Fuel volume in tank, l

FLS voltage, V

On cars of the Tenth Family, a clock or computer is always installed next to the display unit. Nowadays such computers are called “on-board computers” (BC). When the ignition is turned off, the computer display shows the time, but this is not its only function! We will list all the capabilities of the on-board computer on the VAZ-2112, and the instructions supplied by VAZ will help us with this. Tables that are important during setup were copied from the instructions.

What bookmaker are we talking about? The answer is given in the video.

The appearance of the front panel is shown in the photo below. You need to remember the main keys: 1, 2, 3 and 5. All functions are divided into three groups. By pressing button 1, you can scroll through the functions of the first group. The same applies to other keys.

Standard BC for the Lada-112 hatchback

The question is, why is button 5 needed? While in any of the three groups, this button activates additional functions. By the way, their number is two.

Each group has different additional functions.

Swipe example

When the ignition is turned off, we see a clock on the display. Let's try to turn on the ignition and press key 1. The button itself can be pressed any number of times - the functions switch cyclically. Their number is three.

Function group "Time"

If you need additional functions, press button 5. We looked at how to use the standard on-board computer on a VAZ-2112, but the instructions are suitable for any “Ten”.

Operation of BC in different modes

The above describes how to use BC in the “Time” mode. The “Time” group is the first, but there are two more – “Fuel”, “Path”. We provide tables for them.

Function group "Fuel"

Above is the table for buttons 2 and 5.

Function group "Path"

The functions activated by buttons 3, 5 are shown here.

Programming instructions

We will change different settings. We’ll also try turning on the alarm, changing the brightness of the backlight, etc. Thus, programming a computer on a VAZ-2112 also applies to operation.

Setting up the fuel level sensor

The tank initially remains empty. Turn on the “Fuel level” function (2-5) and press button 4 for more than two seconds. Next we follow the steps:

  1. Press button 3 for one second until a sound signal appears;
  2. Fill the tank with three liters of fuel. Wait 10-20 seconds and repeat step 1;
  3. Repeat steps 1 and 2 until 39 liters are filled.

Activate the speed warning light

By pressing button 3 we turn on the “Average speed” function. Press key 4. Then use buttons 5 and 6 to set the required numbers. Finally, press button 4.

To disable the option, use a high threshold value: 190 or 200 km/h.

Changing the backlight brightness

Let's use function 1-3 “Time with stops”. Press button 4. Use keys 5 and 6 to make adjustments. Press button 4.

Alarm

Go to the “Alarm Clock” option (an additional function in the “Clock” list). Press button 4. Next, set the hour value (keys 5 and 6), press button 4, set the minute value (keys 5 and 6). By pressing button 4, the alarm clock is activated.

An alarm clock in a car is a necessary thing

All that remains is to figure out how to turn off the alarm clock. Complete all the steps before setting the hour value, and then press button 1. The alarm should turn off!

How to set up your calendar and clock

We have reached the most difficult chapter. Let's get straight to action:


For a quick adjustment, follow step 1 and step 2. If you then press button 1, the clock will round up from 1:57 p.m. to 2:00 p.m. Or in other words: it was 14:05, but it will become 14:00.

Our editorial 2112 with BC Gamma GF 212. We are completely satisfied with it

The most popular non-standard BC for the VAZ-2110 is the Gamma GF 212 model.

Its cost about 2500 rubles . Installation is simple, you just need to connect to the K-line in the diagnostic connector and connect the power wires.

There are such useful functions as blowing spark plugs and so on. We can only recommend it among the large variety of models on the market.