VAZ 2114 on-board computer readings. On-board computers for VAZ, Lada (injector). What to do if the BC stops working

Almost all modern cars are equipped with an on-board device. This device provides the machine with many useful functions. With it, you can find out the daily mileage of the car, instantaneous fuel consumption, air temperature, fuel supply in the tank. Among other functions - additional operating parameters - air consumption, crankshaft and damper position, and other data.

However, the most useful function of an on-board or trip computer is to provide error information. The device can find out the error number that occurs during engine operation and display it on the screen without additional diagnostics. This allows you to troubleshoot, avoiding paid diagnostics or unexpected repairs.

Some models of cars released from the factory do not have this useful device, which makes it difficult to maintain the car. Therefore, the owners tend to carry out their own tuning of the vases. Putting an on-board computer on a VAZ 2110 with your own hands will not be any particular problem. With the correct connection, the operating time will not take more than an hour. The article will show how to install and configure the device on the VAZ 2110-2111, and also tell you about the models and prices of on-board computers.

On-board devices are divided into several types. On the VAZ 2110, injection or carburetor devices are suitable, depending on the type of power system for the car. Additionally, devices are divided into stationary, installed only in specially designated places or universal, of arbitrary size, which can be placed in any convenient place.

Among other things, there are devices that are suitable for only one model. For example, VAZ 20199, but it does not work on VAZ 2110. This may be the reason why the instrument does not display data correctly. It is worth remembering this when buying and purchasing an on-board computer that can be installed on these models.

The most common and convenient devices for the VAZ 2110 are simple State 110-X5 devices, the price of which starts at 2-3 thousand rubles. The board is compatible with the old panel and has a number of simple functions, such as information on fuel consumption, coolant temperature in the tank, estimated range and mileage to the upcoming maintenance, coupled with decoding engine errors.

It is best to give preference to more expensive devices such as Omega 168, Orion or Mutltronics. Such devices have an expanded set of useful functions that will greatly simplify the operation of the car. And you will not be afraid of how much such an on-board computer costs. The maximum cost of advanced BCs, which come with a dashboard that simplifies installation, reaches 10-12 thousand rubles.

The main differences between a BC injector and a carburetor

The main differences between bk, depending on the type of food, are the on-board capabilities for the VAZ 2110. The carburetor type is the simplest. The main reason is that carburetors are more mechanically regulated, and electronics is assigned a secondary role. Therefore, its standard set of functions is extremely small. You can learn about:

• time of day or set an alarm;
• current and average fuel consumption, as well as power reserve;
• average speed and driving mode;
• engine or outside air temperature;
• diagnostic information that allows you to find out about the engine operation error and decode it.

Disadvantages of BC injector

Some VAZ 2110 models are equipped with a standard on-board computer. This model has a number of disadvantages and limitations. For example, the model interacts poorly with the electronic control unit (ECU) and does not allow receiving data through a special diagnostic connector. However, only motorists, on-board computer in the state, face such a problem. In addition, this is treated with a standard flashing of the factory settings.

If the BC is installed separately on the VAZ 2110, then it can be easily customized. Provided that the connection is correct, the device will not cause problems. If, nevertheless, there are difficulties, for example, the Check light comes on, and the diagnostics shows that such an error code does not exist.

This means that the contacts of the on-board computer may come off or a failure in the electronic system may occur. You need to restart the BC or turn it off for a few minutes. Next, we reconnect and configure the device according to the instruction manual.

• some models of bortoviks do not allow reading errors;
• incorrect connection of the computer to the VAZ 2110 can cause errors in the ignition system;
• shows incorrect fuel consumption values ​​due to a malfunction of the mass air flow sensor.

Rules for moving on a car with an injector

A car equipped with an injector is less susceptible to ambient temperatures. However, in severe frost, the injection Lada also has difficulty starting. Here it is worth using the on-board computer with the function of heating candles. Every time the temperature drops below a certain value and the car is turned off, a special heating of the tips is carried out to ensure a stable start of the engine.

Also, the engine on the VAZ sometimes overheats, which can cause valve burnout and costly overhaul. However, this is possible if the cooling system malfunctions. If necessary, you can activate the Tropic function for the on-board computer VAZ 2110. When the temperature reaches more than the value set by the owner, the forced cooling fan turns on.

Pros of bookmaker

Installing a computer on a VAZ 2110 will open up a lot of good options and has a huge number of advantages:

• the presence of a trip computer allows you to find out about the power reserve;
• the ability to combine a computer and a navigator;
• the option of heating the candles of the disabled car;
• the ability to check for errors and fix them immediately. Replacing the bearing that caused the failure is significantly
• cheaper than a major overhaul.

Installation of BC for the injector

Connecting the on-board computer is quite simple. Several models are offered on the VAZ 2110 - regular, which takes the place of standard watches or universal ones, which can be located at your discretion.

If necessary, you can install an on-board computer in addition to the standard one. This will save space on the panel. For example, the Sigma or State computer is installed on the VAZ 2112 instead of the standard plug of the SAUO block and there is no need to desolder the contacts. It is necessary to connect three contacts - 12 volt, K-line and ground.

User manual

Additionally, it is worth setting up the computer for the VAZ 2110 after all devices are installed. On the device, as a rule, there is a special cross. These buttons help you configure the device. For example, to connect a fuel level sensor, drain the tank, turn on the device, press the diagnostic button.

The device will analyze, and then a numerical designation will appear on the display. This amount of gasoline should be poured. The computer will then move on to another analysis phase. After its completion, you can fill in a full tank. A complete set of settings is indicated in the instruction manual for a particular device and make a choice in favor of the desired functions.

Proper operation

With the right approach, the installed BC will not cause problems. However, if it shows false information, then it is worth removing the on-board computer and checking it for serviceability. How to remove the device is understandable. After all, it has a switchable connector, so you need to dismantle it in the reverse order. The main thing to remember is that this is a fragile thing and can be broken.

After dismantling, check the integrity of the soldering and wires, eliminate gaps. After that, put the device where it stood before and use the serviceable device again.

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

Video instruction

Screen symbols

Parameters and switching sequence of computer display modes

Download instructions

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

When the voltage of the on-board network deviates, the 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 by pressing the "START" key. After resetting the sound signal, the indication of a parameter that has gone beyond the set value is accompanied by a flashing bell symbol. When the parameter returns to its normal value, the alarm stops. To set or remove the parameter control mode, it is necessary in the mode of indication of the controlled parameter by pressing the "START" key to set or reset the "bell" symbol.

For example, to set the overspeed control mode, it is necessary to enter the “Instant speed” mode using the “KM / H” key and set the “bell” symbol on the indicator using the “START” key. Resetting or setting the beep confirmation of pressing the keys is done in the display mode of the parameter "Journey time excluding stops" by pressing the "START" key.

The following parameters are displayed: "Average trip speed", "Average fuel consumption per trip", "Mileage on the remaining fuel" is carried out under the following conditions: the "Trip mileage" parameter is more than 1 km and the "Travel time excluding stops" parameter is more than 1 min, up to fulfillment of these conditions, the symbols “- - - -” are displayed on the indicator. To reset all accumulated parameters: “Travel time excluding stops”, “Total trip time”, “Total fuel consumption per 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 the reset, 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 can change its state. In the absence of DWT or a malfunction in its circuit, in the indication mode of the “Temperature overboard” parameter, the symbols “Co” are displayed on the indicator.

3.2 Setting the time parameters

Parameter readout correction mode:

• "Current time of day",
• "Calendar",
• "Alarm clock" is turned on and reset by the "START" key.

Adjustable digits of the parameter are indicated by flashing. The "+" or "-" keys set the desired parameter value. If you hold down the "+" or "-" keys for more than 0.5 s, the auto-repeat mode is activated. The clock is set according to the exact time signals as follows: in the display mode of the “Current time of day” parameter, press and release the “START” key and, according to the sixth signal of the exact time, the “H” key is pressed, while the digits of minutes and seconds are reset. If the value of the "Current time of day" parameter coincides with the set value of the alarm clock, three melodic sound signals lasting 30 seconds each with a period of 1 minute are issued. Resetting the alarm clock setting is carried out as follows: in the display mode of the "Alarm Clock" parameter, 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 error of the clock, 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 value of the coefficient and, by pressing the "START" key, exit the correction mode. Are the maximum values ​​of the correction factor equal? 31. One unit of the correction factor is equal to a clock change of 0.35 s per day for positive values ​​and 0.18 s per day for negative values.

3.4 Setting the speed limit

Entering the speed limit setting mode is done by pressing the "START" key in the "Average travel speed" parameter display mode. At the same time, a blinking value of the limit speed appears on the indicator, when it is exceeded, an audible warning signal is generated. Changing the value of the speed limit is carried out using the "+" or "-" keys in increments of 5 km/h from 20 to 200 km/h. Exit from the installation mode is made by pressing the "START" key.

3.5 Operating modes of the indicator backlight

When the instrument lighting is on, the backlight level is adjusted using the backlight control on the vehicle instrument scale. With the instrument lighting off and the ignition on, the backlight level is adjusted in the following sequence: in the “Total trip 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 desired backlight level. Each time you press the keys, the backlight level changes by 5%. If you hold down the keys for more than 0.5 s, the auto-repeat mode is activated. The set backlight level is saved 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 l 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 read the fuel level in the tank, it is necessary to install one of the fuel level tables stored in the computer's memory. The car can be equipped with instrument clusters of an electromechanical type - generating an output signal of the fuel level with a maximum voltage of more than 5 V, or electronic instrument clusters that generate an output signal of the fuel level with a maximum voltage of up to 5 V (a distinctive feature of these instrument clusters is the presence of a liquid crystal odometer indicator) . The procedure for setting the instrument cluster type 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" - a combination of electronic type instruments; - "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 release the key after a period of 2 s.

3.7 Calibrating FLS

Due to the fact that the FLS of the car has a large technological spread of parameters, in order to increase the accuracy of the fuel level readings, the computer provides a mode for correcting the table of readings of the FLS (taring).

ATTENTION! BEFORE STARTING THE CALIGNATION, IT IS NECESSARY TO MAKE SURE THAT THE FUEL LEVEL SIGNAL IS CONNECTED TO THE COMPUTER AND THE CORRECT INSTRUMENT COMBINATION TYPE IS INSTALLED.

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

1. To do this, it is necessary to drain the gasoline from the tank, leaving the minimum amount of fuel necessary for the operation of the gasoline 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 indicator will show a flashing "0".
3. Press and hold the "L" key for 1 s until a sound signal appears to confirm the memorization of information. After that, the flashing figure "3" will appear on the indicator.
4. Pour 3 liters of gasoline into the gas tank using a measuring container, wait for the time required to set a constant fuel level, press and hold the “L” key for 1 s until a confirmation sound appears. The indicator will show a flashing number "6".
5. Further, to continue taring, it is necessary to 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 particular calibration stage.
6. To end the taring mode after recording the last value of the fuel level, it is necessary to press the "START" key, turn off and turn on the ignition.

Note - The maximum possible value of the fuel level during calibration is 72 liters.

3.8 Running the computer in diagnostic mode

3.8.1 Reading fault codes

Entering the mode by the first pressing of the "ECU" key. The symbols “En.NN” will appear on the computer indicator, where NN is the total number of fault codes accumulated in the computer’s memory. The "+" and "-" keys select the fault number. For an ECU installed on a car of the VAZ family, 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. An example is E0. 1. The status values ​​of the fault code for the MP7.0 ECU are given in Table D.3.2. For an ECU installed on a car of the GAZ family, the fault number is displayed on the indicator as a combination of characters "ENNN", where NNN is the fault number. If the total number of faults is 0, no fault numbers are displayed. Switching the display to view the fault code and back (to view the fault number) is carried out by short (less than 1 s) pressing the "START" key. The "+" and "-" keys view all fault codes. Possible values ​​of fault codes are given in Appendix D.

3.8.2 Resetting fault codes

Resetting all fault codes accumulated in the computer memory is carried out by pressing and holding the "START" key for 2 s in the mode of displaying fault codes or numbers.

3.8.3 ECU type selection

The computer can be installed on vehicles 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 computer display will show the symbols "Pc.-" and a flashing "bell" symbol), press and hold the "START" key for 2 s until the symbol indicator "ECU" (ECU) and a flashing number indicating the type of computer. Use the "+" or "-" keys to select the required type of computer and exit the mode by pressing the "START" key. To establish communication with a new type of computer, turn off and then turn on the ignition. When choosing the type of computer, the indicator displays:

• - "ECU.0" - М1.5.4;
• - "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 entry into the mode is made by the key "ECU". The indicator displays the symbols "Rs. 1 ", where Рс is a sign of 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 short (less than 1 s) pressing the "START" key. The "+" and "-" keys are used to view all parameters. The list of ECU parameters displayed on the computer indicator is given in Appendix D.

3.8.5 Read ECU ID(the function is 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 display shows the symbols "Cu. 3 ”, where Cu is a sign of 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 short (less than 1 s) pressing the “START” key. The "+" and "-" keys 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 a car parking device is connected to the computer. After switching on the reverse gear on the car and the ignition on, the inscription “rdy” (short for English ready - “ready”) appears on the indicator for 1 s and three short beeps sound. This means that the car parking device is working properly and is ready to go. If the obstacle is not detected, then the symbols “----” are displayed in digital digits on the indicator. If the distance to the obstacle is in the range from 40 to 170 cm, then the distance in centimeters is displayed on the indicator. The direction to 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 Obstacle distance display accompanied by sound signals (with the bell symbol on the indicator set), which become more frequent as the obstacle approaches. At a distance to an obstacle from 170 to 90 cm, the frequency of occurrence 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 enabled (the indicator has a “bell” symbol flashing at a frequency of 1 Hz) or disabled (the “bell” symbol is absent). Resetting and setting the “bell” symbol is carried out by long pressing (more than 2 s) of the “START” key. When the “bell” symbol is set, the sound signal can be turned off before the end of the reverse mode of the car by short (duration not more than 1 s and not less than 0.3 s) by pressing the “START” key - the “bell” symbol stops flashing.

3.10 Auxiliary modes of computer operation

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

To correct the fuel consumption readings, you must enter the "Current fuel consumption" display mode, press and hold the "START" key for 2 seconds until the blinking value of the correction coefficient appears on the indicator.

The nominal value of the correction factor is 100 (as a percentage). The coefficient value can be changed using the “+” or “-” keys, while a larger value of the coefficient 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. Run out fuel up to a certain value of the fuel level readings by the computer.
2. Pour a measured amount of fuel into the tank - for example, 20 liters.
3. Reset the readings of the total fuel consumption in the computer, for which, in the "Total fuel consumption" display mode, press and hold the "START" key for 4 seconds until a two-tone sound signal appears.
4. Run out all filled fuel to the original value of the fuel level reading.
5. Note the readings of the total fuel consumption - for example, 25 l.
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 values ​​of the correction factor is from 50 to 255.
8. After that, reset the fuel consumption readings.

3.10.2 Correction of on-board voltage readings

The voltage readings of the on-board network are corrected during the manufacture of the computer and after the repair of the computer associated with the replacement of the lithium battery.

For correction it is necessary:

• in the "Voltage of the on-board network" indication mode, press and hold the "START" key for 2 s until the flashing voltage value appears.
• Using the "+" or "-" keys, set the voltage value equal to that measured by a digital voltmeter on pin "3" of the computer block.
• Exit the correction mode by pressing the "START" key.

3.10.3 Checking the software version number

To control the version number of the computer software, you must 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 ​​- the number of the current software version (may differ upwards).

4. Installing a computer on a car

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

Table 1

Description of computer contacts is given in table 2

table 2

Continuation of table 2

4.1 Installing a computer on a car with a carburetor type engine

The computer is installed in the passenger compartment of the car in a special socket 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 10:30 (to the left and above from the perpendicular to the indicator plane), using bracket, which is part of the KMC. Connection of the computer and sensors to the car should be carried out 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 DSA installation

To install DSA, you must perform the following operations:

• - disconnect the flexible shaft of the speedometer cable from the speedometer drive of the gearbox;
• - connect the DSA gearbox to the speedometer drive with a tightening torque of 6 to 8 Nm;
• - connect the flexible shaft of the speedometer cable to the DSA output shaft, after twisting the protective cap with the DSA.

4.1.2 Installing the DRT

To install DRT, you must perform the following operations:

• - fix the DRT with fasteners pos. 1, 2, 3 on the car body in the engine compartment so that the “Exit” branch 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 the carburetor;
• - install the hoses pos. 4, connecting the fuel pump with the “Inlet” branch pipe of the DRT and the “Output” branch pipe of the 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” branch pipe of the DRT;
• - put the hose pos. 9 with plug pos. 10, fixing it with fasteners pos. 6, 7, 8, 11, to the outlet fitting of the carburetor return line.

Note - When installing DRT on vehicles that do not have a return line in the fuel system, the plug pos. 10 install on the branch pipe "Return" DRT.

4.1.3 Installing the DVT

Install 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 the car.

4.1.4 Connecting the computer to the vehicle circuits

Connecting the computer and sensors to each other and to the electrical equipment of a car such as VAZ 2108, VAZ 2109 should be carried out 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 ventilation and interior 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 block of the alarm switch (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 block of the alarm switch, connect the socket contacts "5" (circuit "30"), "3" (circuit "15/1") of the harness pos. 13;
• - disconnect the two-terminal block of the vehicle harness of white and black wires, 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 female contact coming from the FLS from the block of the instrument cluster in accordance with the vehicle electrical equipment 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 the socket contact "8" of the harness pos. 13;
• - unscrew the two nuts securing the mounting block and lift it up until a gap is formed 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 into the air intake box. Install and secure the mounting block;
• - squeeze out the rubber seal from the hole in the center of the bulkhead of the air intake box and the engine compartment. Pass the sensor wires into the hole formed. Cut the rubber seal from edge to center, insert the sensor wires into the cut and install the seal in place;
• - connect the harness blocks pos. 13 to the sensors: block "X1" to DRT, and "X7" to DSA. Connect the DVT to the block "AMP" of the harness pos. 13. Connect the nine-terminal block "XS" of the harness pos. 13. Insert the computer into the socket of 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

Connecting a computer to a VAZ car with an engine equipped with an ECM should be carried out 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 the harness pos. 3 (fuel consumption signal circuit) connect to the vehicle harness connector associated with the ECM according to the vehicle wiring diagram. Socket contact "9" of the 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 block connected to the ECM. Fork "X10" harness pos. 3 is connected to the “M” contact of the vehicle diagnostics block.

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

Connect the nine-terminal block "XS" of the harness pos.3 to the computer.

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

On a VAZ-2115 car manufactured after January 1, 2002, with an engine equipped with an ECM, the computer is installed in its original 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 - DVT installed in VAZ 2115 vehicles can only be used in conjunction with one of the devices: a combination of instruments or a computer, while the DVT circuit from a device in which this DVT is not used must be disconnected.

4.3 Installing a computer on a GAZ-3110 car

The installation of a computer on a GAZ-3110 car with an ECU MIKAS 5.4, MIKAS 7.1, 301.3763 ​​000-01 is carried out using KMCH2, which includes the RUIB6.640.786 Harness and the RUIB6.133.502-01 Bracket. The computer is installed using a bracket in 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 10:30 (to the left and from above from the perpendicular to the indicator plane).

4.3.1 Installation work on connecting 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 fixing screws and remove the trim of the instrument cluster by pulling it towards you.
• Mark and disconnect the plug connectors of the central light switch and headlight range control. Loosen the four screws securing the instrument cluster.
• Turn instrument cluster 90° and remove from instrument panel. Disconnect vehicle harness connectors from instrument cluster.
• Remove the female contact "7" from the block of the harness of the vehicle "XP2", insert it into the block "X7" included in the KMCH2 and connect it to the block "X6" of the harness of the KMCH2.
• Insert socket contact "6" into socket "7" of block "ХР2". Remove the female contact "5" from the vehicle harness block "XP1", insert it into the block "X8" and connect it to the block "X5" of the KMCH2 harness.
• Insert socket contact "8" into socket "5" of block "ХР1". Remove the socket contact "2" from the car harness block "XP3", insert it into the block "X3" and connect it to the block "X10" of the KMCH2 harness.
• Insert socket contact "3" into socket "2" of block "ХР3".
• Remove the female contact "10" from the block of the harness of the vehicle "XP3", insert it into the block "X11" and connect it to the block "X9" of the harness KMCH2.
• Insert socket contact "9" into socket "10" of block "ХР3".
• Pull the wire from contact "2" of the block "XS" 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 section of wire (gray with red stripes) 5 mm long connected to terminal "11" of the diagnostic block at a distance of 3 cm from the contact. Using the winding method, connect the wire to the stripped area and insulate it with PVC tape.
• Install DVT in 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 wires through the rubber seal into the engine compartment and then connect it to the DVT connector.

• Connect a 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 remove the two upper screws securing the front ashtray panel.
• Pull the front ashtray panel towards you.
• Disconnect cigarette lighter plugs.
• Connect the pin block "X2" of the KMCH2 harness to the cigarette lighter socket, which is part of the vehicle harness.
• Connect the plug of the cigarette lighter socket to the socket "X1" of the KMCH2 harness.
• Connect the “XS” block of the KMCH2 harness to the computer block. 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 ECU-3 controller type (ECU.3) in accordance with 3.8.3.

4.4 Installing the car parking device

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

Install the control unit in the passenger compartment of the car or in the luggage compartment, install the sensors on the rear bumper of the car.

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

• Lay the wires of the vehicle parking device power harness from the control unit to the computer installation site. Remove the female contact of the socket “7” from the block “C” of the harness for connecting the computer to the car circuits, remove the case “X6” from the socket contact of the black wire of the power harness of the car parking device and put it on the socket contact removed from the block “C”, connect the socket contact in case "X6" with plug "X5".
• Insert the female 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 circuit of the reversing lights, leave the red wire with the female contact in the “X8” housing unconnected.
• Remove the female contact of the socket “2” (if any) from the block “C”, remove the case “X7” from the socket contact of the green wire of the power harness of the car parking device and put it on the socket contact removed from the block “C”, connect the socket contact in case "X7" with plug "X9".
• 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 their elimination

The list of possible malfunctions and methods for their elimination are given in Table 3.

Table 3

6 Transport and storage

Transportation of the computer is carried out by any mode of transport that ensures its safety from mechanical damage and precipitation, in accordance with the rules for the carriage of goods in force on this type of transport. Computer transportation conditions correspond to group C of GOST 23216 78 in terms of mechanical impacts 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 conditions of 2 C 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 labeling of the product.

7 Manufacturer's warranties

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

Warranty period of operation of the computer is 12 months from the date of sale.

The warranty period of storage of the 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 (informative) Parameters of output signals of sensors

A.1 The computer ensures the 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, not more than …….… 0.8;

High-level input voltage, V, not less than….… 4.0;

Fill factor Q = (50 ± 30)%;

The duration of the leading (rear) front of the pulse, µs, no more ... 50.

The electrical circuit for connecting a 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 coefficient (number of pulses per liter of fuel flowing) ……….. 16,000;

Low-level input voltage, V, not 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 wiring 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 DWT parameters are given in Table A.1.

Table A.1

Table A.1 continued

A.4 The parameters of the FLS signal of the electromechanical instrument cluster for VAZ vehicles 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 given in Table A.3.

Table A.3

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

The on-board computer for VAZ 2113, 2114, 2115 is a special electronic device designed for diagnostics, analysis, and monitoring the performance of vehicle systems. And also to display current information from various systems. The on-board computer for the VAZ 2113, 2114, 2115 can duplicate the speedometer, tachometer, fuel level indicator, coolant temperature indicator up to a tenth of the measurement.

Like all computers, the on-board computer for VAZ 2113, 2114, 2115 consists of:

• display, to display information;
• processor, to carry out the processing of information;
• RAM and ROM.

According to the mounting method, on-board computers for VAZ 2113, 2114, 2115 are divided into built-in and universal. Embedded on-board computers are built into the instrument panel of the VAZ 2113, 2114, 2115. Most often in a special niche. Universal on-board computers are mounted on the windshield or on the instrument panel itself VAZ 2113, 2114, 2115.

The variety of on-board computers for the VAZ 2114, 2115, 2113 is amazing. Rectangular, oval, round. With color and monochrome display. With removable panel.

Why do you need an on-board computer on a VAZ 2113, 2114, 2115? The answer is obvious. BC is necessary to control the operation of the electrical equipment of the car. He independently analyzes the ECU, ABS, readings of various sensors and systems. In case of detection of errors, notifies the driver through the display or a sound signal. Most on-board computers have pre-installed functions that can be controlled to find out various information. For example, how much distance has been traveled, what is the temperature outside, what time is it, fuel consumption per 100 km, fuel remaining in the tank, fuel quality, engine speed, coolant temperature and much more. For the convenience of using the on-board computer, it has the ability to save the information received, for further analysis, to a personal computer. The on-board computer VAZ 2113, 2114, 2115 is connected to a personal computer via a regular USB cable. Also, through this universal port, you can update the on-board computer firmware to the latest version.

You can install the on-board computer yourself. To do this, the on-board computer must be connected to the vehicle's diagnostic block.

Output. An on-board computer is an integral part of a modern car. The on-board computer for the VAZ 2113, 2114, 2115 is designed to facilitate the operation of the car, notice errors in the operation of the systems in time, notify the driver of impending problems, thereby preventing expensive car repairs.

Having bought an on-board computer and installed it on a VAZ 2113, 2114, 2115, you will forever forget what computer diagnostics of a car is. Your personal on-board computer will diagnose the car every time you start the engine.

The on-board computer VAZ 2114, in fact, is the "brains" of the vehicle. Thanks to this device, the operation of the main systems and units of the car is controlled, and if it breaks down, the driver may encounter certain difficulties. You can learn more about the main characteristics, as well as malfunctions of the car's BC, from this material.

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Characteristics of BC

Before choosing which BC is better to install so that it works well, let's look at the characteristics of the device.

Purpose

The purpose of the on-board computer VAZ 2114 is to inform the car owner about the technical parameters of the vehicle. This is carried out as a result of the fact that the standard on-board computer VAZ 2114 is connected to the control unit through a special diagnostic line. The latter, using coded pulses, warns the driver about fuel consumption, engine speed and other parameters. The BC receives most of the information from sensors.

As a rule, the device is mounted on the control panel, above the air deflectors. In machines that do not have a BC, a plastic plug is located instead.

main parameters

The on-board computer on the VAZ 2114 allows you to determine the following parameters:

• vehicle speed;
• the volume of fuel in the tank and its consumption, as well as the mileage that the car can run on this fuel;
• time spent on the passage of a particular path;
• crankshaft frequency;
• the degree of heating of the motor;
• temperature indicator in the car;
• total mileage of the vehicle;
• voltage in the car's electrical network;
• the degree of heating of antifreeze in the system;
• what position is the throttle valve in;
• overall air flow;
• combinations of faults, as well as their decoding;
• fuel consumption in general;
• the amount of gasoline spent for the last trip;
• average vehicle speed and other useful information.

Possible malfunctions

If the on-board computer does not work, then this may be due to such malfunctions:

• connectors and power wires are incorrectly or unreliably connected;
• the safety element responsible for the functionality of the device has failed (there may not be a fuse directly on the BC, you need to check the operating instructions);
• incorrectly configured or adjusted device, for this you need to read the instructions or manual.

If the VAZ 2114 on-board computer does not work well, first of all it is necessary to check the integrity of the contacts and clean them if they are oxidized.

DIY Connection Guide

The procedure for installation, dismantling and connection can be carried out at home. Before you take on this work, weigh your strength, because the computer is a serious matter, because it is he who is responsible for many processes. Moreover, it is directly connected with the control unit (the author of the video is the Homemade Homemade channel).

BC installation

Further, we propose to find out how the on-board computer is installed on the VAZ 2114. For the VAZ 2114, you can use the BC Gamma or any other adapted to the technical characteristics and features of the vehicle.

So, how to install the device with your own hands:

1. First you need to choose a place for installation. As we already reported, it is located on the center console and is hidden with a plastic plug, so it must be dismantled.
2. For easier installation, this car model has a special wire connector with a block with nine pins. These contacts must be installed in the connector located on the back of the BC.
3. Next, activate the K-line. To do this, connect the brown wire to socket M of the Euro2 plug or to socket 7 of the Euro3 plug. As for the reverse end of the cable, it must be installed in slot 2 on the plug. When installing, be careful, it is possible that the pad is installed upside down in the car.
4. Now you just have to install the BC in the landing site and test the device for performance. It should be borne in mind that, depending on the modification of the device, such a BC can also be installed on a vehicle with a carburetor. But one computer will not be enough, it will be necessary to install additional devices and devices (the author of the video is the MrStas ZoRrO channel).

Dismantling BC

It often happens that the BC does not suit car owners for certain functions, or it simply does not work correctly and needs to be replaced. In this case, you can dismantle the BC at home, there is nothing complicated about it. Before removing the device, it is necessary to make sure that its dismantling will not affect the warranty service of the vehicle. Of course, this applies to newer cars that were purchased in the cabin. We are talking about this because the dismantling of the BC in any case will affect the warranty, this must be taken into account.

So, detailed instructions for dismantling the on-board computer with your own hands:

1. Before proceeding with the removal process, it is necessary to de-energize the vehicle. To do this, simply disconnect the battery, namely, remove the negative terminal from it.
2. After that, the audio control panel is dismantled. This is also not difficult, when removing, be careful not to damage it.
3. Next, you need to dismantle the car radio itself, for this you need to disconnect the connected wiring from it.
4. After the radio tape recorder is removed, you can stick your hand through the opened hole and disconnect the latches of the unit of the device itself. Having done this, it is necessary to dismantle the BC as carefully as possible and disconnect all connected wiring from it.
5. After performing all these actions, it is necessary to remove all auxiliary devices and devices that are connected to the BC. If you decide to replace the device with a new one, then at this stage a new device is installed and connected in accordance with the operating and installation instructions. If you just decided to dismantle the BC, then just connect the audio system and install it in its place.

Issue price

The cost of the device depends on many parameters, so it is impossible to unambiguously name the price that is relevant for all on-board computers on the “fours”. The price of the device is determined in accordance with the manufacturer of the computer, its technical parameters and characteristics. We want to say right away that we would not recommend giving preference to cheap options, since BCs are the “brains” of a car, and you can’t save on this.

Video "How to properly set up the BC in the VAZ 2114"

Detailed instructions for setting up the device in the domestic four with a description of all the nuances are given in the video below (the author is the MegaSirius12 channel).

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 status of the main systems and units of the car. In the event of a car breakdown, 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 VAZ 2114 perform, how to choose and install the 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 status of various systems. Modern BCs 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 the diagnostic line.

Due to the coded pulses, the following information is displayed on the computer display:

• vehicle speed;
• air and fuel consumption;
• the amount of fuel in the tank.

All characteristics flaunt 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 on-board computers installed in cars at the factory have a rather 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 greater than the capabilities of the control panel. Especially these features affect the accuracy of displaying various characteristics. This is far from the only difference between the BC and the instrument panel. Next, let's look at 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 of 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 display 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 counts the engine speed, processes the received data and displays the final result. But, if you install wheels larger than the diameter on the car, the actual speed will increase, but the speedometer will not display this. The on-board computer will protect against such incidents, unlike the control panel.

How to choose a quality bookmaker

The main rule when choosing a computer in a car is that the device must support collaboration with the computer. And secondly, it is necessary to be guided by personal preferences. You should clearly understand for yourself what functionality the device should differ in.

The Multitroniks on-board computer fits the VAZ 2114 car in the best way. Among the devices from this company, you can choose the best option for your car.

If the BC is needed to display a small number of parameters, then inexpensive models should be preferred.

Today there are a huge number of automotive gadgets with different purposes. The on-board computer can be universal - monitor vehicle systems and access the Internet. It may also be highly specialized. Route BCs are becoming especially popular today, 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 quite wide - you can buy a device for 1000 rubles, or you can buy it for 5000 rubles. Of course, more expensive models are endowed with great functionality. They are able to start the engine to warm up at a certain time, signal a low level of 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 be useful.

Instructions for installing the device on the VAZ 2114

It often happens that the regular on-board computer VAZ 2114, which is equipped with cars of the Lux configuration, does not suit the owner for one reason or another. As mentioned above, regular BCs are much inferior in functionality to 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:

1. The first step is to remove the "negative" terminal of the battery.
2. After that, you can proceed to dismantle the control panel.
3. Disconnect the radio wiring.
4. Dismantle the audio system, disconnect the clamps of the BC.
5. Disconnect all computer wiring.
6. Remove all assistive devices and gadgets.
7. 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 a warranty, then it is not recommended to do any work yourself.

Basic error codes

A good BC not only displays the necessary information to the driver, but also decrypts error codes. If any vehicle system fails, the corresponding error code will be displayed on the computer display. In order 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, you should do the following: reset the daily mileage and turn on the ignition.

Error code 3 indicates a malfunction of the fuel level sensor.

Code 6 indicates that the engine is overheating, and error 7 can be interpreted as low oil pressure in the system.

The instruction for the VAZ 2114 on-board computer contains the entire list, therefore, in the event of any error, you must first refer to it.

Useful video

You can find some useful information about BC in VAZ cars in the video below: