Diagnostics VAZ himself?! - It's simple! Diagnostics of the electoral system of automatic control of the VAZ engine. Options for sets of an electronic engine automatic control system (ESAU-D) VAZ cars Exposure from open

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Modern cars Abundant filled with all sorts of electronics. Therefore computer diagnostics It became quite ordinary phenomenon when repairing a car.

Not exceptions are VAZ 2110 cars with injector motors, tested which with the help of computers, special adapters and software You can even do it yourself.

Why do you need diagnostics

Let's see for a start, why to diagnose malfunctions and whether it is specifically required for your car.

The main advantage of the diagnosis is the ability to save money, time and modern nerves. If the car begins to retire itself inadequate, some extraneous sounds appear, violated stable work Engine, then there are two options:

  1. Examine all systems manually by dismantling and testing, spend a bunch of time and nerves. The probability of finding the cause of the breakdown is far from 100%.
  2. Conduct computer diagnostics with your own hands by connecting a special adapter, a cable to a computer. The program scans the car and can give the appropriate error codes. After examining our material with error codes, you will easily find the reason why the car started to behave abnormally.

Should I contact a hundred?

The quality of diagnostics for a hundred is often not much different from independent check. The presence of an adapter and cable for connecting the device allows you to deal with problems of your own auto without outside intervention.

By contacting the service station, you can diagnose the same equipment, only at the same time you will request a decent amount of money. If you do not control the checkpoint yourself, the masters can declare the detection of other errors that do not actually exist.

The result of the appeal to a dubious STR for the purpose of diagnostics may be serious financial costs and a long lack of a car at your disposal.

The only option when it is necessary to contact the car service - this is the lack of equipment for the diagnosis and the presence of good acquaintances among auto mechanics.

What is necessary for work

If you decide to diagnose your VAZ 2110 faults yourself, then you will need several basic things for this work.

Device

Features

This is a kind of chip, enclosed in the body. It allows you to connect the "brains" of your car with a computer and issue the appropriate information on the laptop or tablet screen

Used to connect the adapter with a car and computer. Usually comes with an adapter

A computer

When choosing a computer, rejoice at what you have is a stationary PC, a tablet, a laptop. Better portable computer, since it is difficult to connect cars with a stationary PC. Do not suit for diagnostics cables more than 5 m long, so taking into account this when connected to a PC

The required software can be found on the Internet, or take the software provided with the adapter. There are no problems with searching for NO today.

Choosing an adapter and cable, take into account the features of your car. Not all universal adapters. For VAZ 2110, an example of an excellent adapter is ELM327. We will talk about him later.

How it works?

Now we'll figure it out how it all functions together and propagate the car as you can dig.

  1. The diagnostic program sends signals through the COM port through the adapter to the car controller.
  2. The controller sends information in response.
  3. The program conducts the processing of the received data by issuing the corresponding result on your computer screen.
  4. Data exchange is carried out according to the relevant protocol. Depending on the car manufacturer, the protocol may be different, have its own features.
  5. To simplify the diagnosis, many manufacturers use the ODB II Universal Protocol. Its possibilities are limited and adapted not for all cars. It is suitable for the VAZ 2110 model perfectly, since the tent are not distinguished by an increased electronics in contrast to more modern cars.
  6. In the case of the VAZ 2110, the program on the computer screen will display the result in the form of error codes. It is enough to open the material where we described the error codes for the VAZ 2110 to understand exactly what breakdown fell on your car. Next, appropriate actions are being taken to eliminate them.

The essential advantage of the diagnosis is the fact that after it you know exactly, with a malfunction of which nature you are dealing. You do not have to sort out half the car to find the source of the problems.

Types of diagnosis

Computer diagnostics of the car can be divided into three main species, one of which directly to the VAZ 2110 does not have a relationship.

  1. Check suspension. It must be carried out if the rubber began to uneven wear out or extraneous sounds are heard when moving. Diagnostics will determine the reasons for the demolition of the posterior and the front axle, which you can see when the speeds can be rotated.
  2. Engine check. The main share of diagnostic events falls on power units. Computer and adapter will help you if instability is observed idling, the machine is hardly started, the fuel consumption increases, power drops, etc.
  3. Check automatic transmission. Since the VAZ 2110 is not equipped automatic box Transmissions, no sense in conducting its diagnostics.

Connectors

You decided to diagnose. But what and where to connect?

On the VAZ 2110 connector for computer diagnostics (CD) is located below the steering column to the right of the driver. The connector is called OBD. This information greatly simplifies the search for a suitable adapter.

To check, you must perform the following sequence of operations:

  • The adapter is inserted into the OBD steering slot;
  • The computer should already be included;
  • When the shoe is connected to the adapter, you need to turn on the ignition. Without power, the program will not work and read the data;
  • Next, connect the program with which testing is performed;
  • If all the elements are workable, the electronics of the computer will be displayed on the computer monitor;
  • Start checking.

Plotovka

Since it requires a diagnostic shoe to verify, that is, OBD, it will not be superfluous to learn about the peculiarities of its pinout. So you can easily figure out how to connect:

  • Contact A - is responsible for the mass connection;
  • Contact V - Required to connect L-LINE. Note, not all cars have this contact;
  • Contact M - serves to connect K-Line;
  • Contact N - Power + 12V;
  • Contact G - controls the operation of the gas station.

Separately, we will introduce you to the ELM327 adapter, with which many owners of VAZ 2110 perform their own full diagnostics.

ELM327 is one of the latest OBD developments. This scanner applies auto checks using a computer. The key advantage is that the device supports all the well-known OBD protocols and interacts with many diagnostic programs. To communicate, a USB cable is used to communicate with the computer.

Software for ELM327 is predominantly free, although a certain software is only available for payment.

The adapter operation is possible on computers with different OS. Namely:

  • Windows;
  • MacOS;
  • Linux;
  • Palmos;

It is possible to fully disclose the scanner capabilities only at the expense of correctly selected software. For self-diagnostics, the software for the scanning of the gearbox and the engine is available for free. Commercial versions of programs allow you to additionally check other vehicles of the car.

Main features

Let's get acquainted with the possibilities that the ELM327 microcircuit provides:

  • Reads error codes, car faults;
  • Displays codes and their description;
  • Exports data to the printout, if necessary;
  • Removes error codes;
  • Displays data in the metric measurement system and system used in the US;
  • Writes, saves data, builds graphs;
  • It has an overclocking counter from 0 to 100 km / h, which allows you to diagnose on the go.

Checking many parameters of the car's work should be carried out on the go. Not all adapters are adapted for this, so it is important to choose the equipment that meets your requirements.

Equipment

By purchasing such an adapter, you get:

  • High-precision adapter based on the ELM327 processor;
  • OBDII cable;
  • Cable for connecting to a computer;
  • Disk with free software.

For the adapter and receive information, it is not necessary to have a powerful computer. The parameters of the simplest laptops are enough to carry out the diagnosis of VAZ 2110.

An independent CD allows you to seriously save, get objective information about the state of your car, as well as save yourself from unnecessary financial costs, which, when handling a hundred, be sure to appear.

Following foreign car manufacturers Concern AvtoVAZ introduces advanced technologies to its vehicles. One such example is an on-board computer, designed to identify a malfunction in the machine using a digital code. We invite you to find out how diagnosed on VAZ 2115 - error codes will also be decrypted in this article.

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Diagnostics cars

Of course, to detect a malfunction in the work of the vehicle is impossible without diagnostics. It can be done by special equipmentwhich can be found on each specialized service station. But also to test your car for faults on your own. Note, when self-checking auto, error codes will not be as if diagnosed on equipment.

So, how to independently do the diagnosis, such a question came to each owner of these machine models. Now we will tell you more detail about it. But to diagnose the machine is half of the case, because the troubled fault combinations must also be decrypted.

  1. Find the Odometer button on the instrument panel. You need to hold it.
  2. Then check the key in the ignition lock to position 1.
  3. Having done this, the odometer button will need to be released.
  4. When you released the button, the arrows will jump on the instrument panel.
  5. Once again clam and release the odometer button. On the speedometer, figures will appear, denoting the version of the firmware on-board computer.
  6. Finally, for the third time, clamp and release the button of the odometer and you can see a fault combination. In case of self-check, error codes will be presented in a two-digit form, in contrast to the diagnostics on the equipment, where the faults are presented in a four-digit form.

Deciphering codes

As mentioned above, without deciphering the error codes, the diagnosis of the vehicle is meaningless. Therefore, the decoding of combinations should also be paid attention to. Especially if you do not want to pay for this considerable money to specialists for a hundred. So, let's start with combinations that appear during self-diagnostics of the machine.

Self-diagnostic codes

CombinationDeciphering breakdown
1 Code 1 Indicates a malfunction in the operation of the microprocessor. Sometimes an error is corrected by flashing the device.
2 On-board computer reports the incorrect operation of the gasoline level sensor in fuel tank. There are problems with electrical wiring.
4,8 Too high or excessively low voltage in the vehicle network.
12 The incorrect operation of the diagnostic chain of the control lamp.
13 On the on-board computer stopped the signal from the oxygen level control device.
14,15 The control unit enters an incorrect signal from the antifreeze temperature sensor in the cooling system. In particular, the signal may be too low or overestimated.
16,17 The combination data when checking the car for error detection means the wrong on-board network voltage. It is necessary to carefully check the network for closures and cliffs, since the voltage rate is too high or very low.
19 On the on-board computer, the VAZ 2115 enters the incorrect signal from the crankshaft position control device. Check the chain.
21,22 A very low or high signal from the position control device comes to the VAZ 2115 control unit. throttle valve. To eliminate a malfunction, it is necessary to check the performance of the device directly, as well as moderate the wiring.
23,25 A device for controlling the temperature of the suction air. The incorrect signal comes to the control unit from this sensor. Check the chain, as well as the sensor directly.
24 On the on-board computer, the signal from the VAZ 2115 vehicle speed sensor has ceased.
27,28 Error combinations data indicate an incorrect signal from the CO sensor on the auto control unit. It is recommended to check the circuit for cliffs and closures or replace the sensor.
33,34 Control device mass flow air. Error data indicate an incorrect signal from the sensor, as a result of which it should be replaced. There is also a chance of breaking in the chain, therefore it makes sense to check and wiring.
35 Detected a malfunction in the operation of the regulator idle move. You should replace the sensor to restore the correct operation of the device.
41 An incorrect signal from the phase sensor enters the control unit.
42 This combination indicates a malfunction in the control wiring electronic ignition. Apparently, the ignition is all right, but the chain is diagnosed.
43 The control unit caught an incorrect signal from the detonation sensor. You should check the device or to diagnose the chain for cliffs.
44,45 In the injection system, the on-board computer recorded the depleted or enriched combustion mixture. In this case:
  • the car engine can trot;
  • during movement, in particular, when switching transmission, the vehicle can go jerks;
  • the engine can periodically sneak (in rare cases).
51,52 The troubleshooting data indicate errors identified in PPZ or RAM devices.
53 On the VAZ 2115 control unit, the signal from the CO-sensor has ceased. The device's performance should be checked.
54 Signal from the Ocan-corrector sensor.
55 This combination reports that when driving a car, in particular - at high load on the Motor VAZ 2115, a combustible mixture is imposed in the injection system. In this case, the signs of breakage may be the same as in the case of codes 44 and 45.
61 The oxygen sensor broke. To restore the system operation, you should replace the sensor.

Errors controllers

CombinationDecoding
R0101-R0103.These combinations mean. In particular, the signal can be elevated or low. The device should be replaced.
R0112-R0113.It is reported about the failure of the intake air temperature sensor. It is necessary to check the wiring, especially in places where the wires were repaired. Apparently, the on-board computer tries to inform you about the occurrence of short circuit or cliff.
R0116-R0118.These error codes indicate a malfunction of the antifreeze temperature sensor in the system. As a rule, in such cases, it is better to check the wiring better to begin with, and if everything is in order with the chain, it is desirable to replace the sensor directly.
P2138, p2122, p2123, Р0222, Р0223These error codes indicate the incorrect operation of the accelerator pedal position control.
Р0201-Р0204When such combinations appear, the on-board computer is trying to inform the car owner about incorrect work one of the injectors. In particular, the circuit breakdown or short circuit can be fixed in the system.
R0130 - R0134.One of these combinations of numbers may mean a malfunction in the functioning of the control sensor of the oxygen. To restore the sensor, check the circuit for cliffs and short circuits or it is worth replacing the device.
R0136-R0140.Error data means incorrect operation of the diagnostic oxygen control sensor in the injection system. As in the previous case, errors can mean incorrect operation of the device or electrical wiring fault.
Р0217.Indicates engine overheating internal combustion. In this case, malfunctions can be covered both in the engine itself and in:
  • overheating coolant in the system;
  • operating poor quality motor oil or fluid that has already worked out its service life.
Р0326-Р0328.On-board computer VAZ 2115 informs the car owner about the detonation sensor breakdown. In particular, such combinations may indicate not only the output of the sensor, but also the incorrect signal coming from it to the control unit.
Р0340-Р0343.Such combinations indicate a breakdown of the position control sensor distribution Vala. VAZ 2115. In particular, errors can mean:
  • the signal from the device does not change when the internal combustion engine is running;
  • for several revolutions crankshaft The signal from the camshaft on the control unit goes too low or very high.
Р0351, Р0352, Р2301, Р2304The data of the combinations mean the incorrect operation of the ignition coils, namely, it is about the incorrect signal entering the on-board computer. Also, these combinations may indicate the cliff in electrical wiring or a short circuit, recorded in the chain.
Р0422.There was a breakdown of the device of the neutralizer.
Р0691, Р0692.There was a breakdown of the first fan relay of the cooling system.
Р0693, Р0694The on-board computer recorded a breakdown of the second relay of the cooling system fan. When undime replacement The fuse is possible boiling coolant.
Р0485.The control voltage from the cooling fan enters the control unit.
Р0560-Р0563.The control unit registered too low or high voltage of the aircraft.
Р0627-Р0629.The combinations data may indicate both the incorrect signal from the fuel pump and the breakdown of the relay responsible for the operation of the aggregate. It is worth noting that when the fuse breakdowns, the vehicle work will be impossible, since neither will start the engine.
P1602.1602 is a widespread VAZ error. Malfunctions are registered in the operation of the controller of the DVS control system.

Reset mistakes


If you have discovered and eliminated a malfunction, then it needs to be erased from the side of the on-board computer. To do this, repeat the following actions:

  • Mustle the engine and turn off the ignition.
  • Disable terminals OT. rechargeable battery.
  • Wait a few seconds and connect the terminals back to the battery.

Video "Reset Motor Error VAZ"

This video describes the process of resetting a combination of errors for cars VAZ of the tenth family.

VAZ 2110 error codes are presented in the numerical designation on the display, and they are transmitted from the phase sensors on the on-board computer. This is convenient, but a novice driver can understand and cannot figure out how to use this equipment. But it is necessary to know and be able to, since the system thanks to the built-in function of self-diagnosis will help in the early stages to identify a malfunction, which means it is possible to eliminate it in a timely manner.

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Diagnostics

Diagnose the state of the car systems in two ways. Let's start with the first that does not provide for use additional equipment.

To start the self-diagnostic function, click the button that resets the mileage per day. Turn on the ignition. You will see how the arrows on the instruments will start moving from one position to another. This means that the diagnosis of VAZ 2110 is launched and on the phase sensors on the ECU began to receive information. After the process is completed, the RAM will give the numbers to the scoreboard, which will show, in what condition the systems are located.

Car VAZ 2110.

Decoding combinations

When the self-diagnosis was completed and the figure was highlighted 0, this means that everything is in order with the vehicle, everything is in order and all systems work as it should be:

  • if 1 is highlighted, it indicates that there are problems with the microprocessor or RAM gives a failure;
  • 4-high voltage on the network, more than 16 V;
  • if 8, then low.

If the fault is not alone, but several, then the digit will be displayed equal to the amount of faults. If 6 will light up, then this will mean the amount of numbers 2 and 4. If 14, then most likely three malfunctions, namely, 2, 4 and 8.

SAMI simple diagnosiswhich is available to the driver without applying additional equipment. Some malfunctions, of course, it will help to identify, and also show the condition of the nodes and the VAZ 2110 systems as a whole. But for a specific definition of all faults and deciphering information coming from phase sensors, additional funds are required. For example, which provides more data.


Diaphrous Mileage Reset Button

Diagnostics with additional funds

To diagnose cars, including VAZ 2110, various equipment is used, which is connected to a special connector. Thanks to this equipment, which is not distinguished by special complexity and high price, you can make up full picture Auto status.

A personal computer is used to a service station to which data from phase sensors are transmitted through a special cable.


Auto diagnostics adapter

Bluetooth devices appeared on the market, allowing diagnostics using a smartphone, a tablet or laptop.

They work according to the scheme. The device is connected to the connector, the ignition turns on and the diagnostic process begins. The data comes from phase sensors to the ECU. From him on mobile devicewhere specialized software must be installed.

This makes it possible not only to get data, but they are presented in a more visual form. This method allows the driver even with a small experience of operating a car (in our case VAZ 2110) to obtain all the data on his car.

But most drivers prefer to diagnose on a hundred. So that you are aware of the data that gives the on-board computer through RAM from phase sensors, imaging frequent errors.

Decoding combinations

If there are problems with electrical equipment, they should be eliminated immediately. The error code 1602 will not all be in the order in this matter.

Sometimes the error 1602 can simply be reset and does not appear in the future. Socialists call such data with "good".

Error 1602 sometimes appears if:

  • for a while, the battery was disabled;
  • there was a voltage jump during the launch of the motor, for example, in cold weather.

But if the error code 1602 appears all the time, it is necessary to check the entire network. Perhaps there is a break. With a constant appearance of the error code 1602, you can try to clean the battery terminals. Check if they are well fixed. Did not help, the error 1602 still appears? Check the chain check. You need to start from the plus terminal of the battery. Start with an electrical hardware and melting insert.

DPDZ. Sometimes it happens that the cause of the error code 1602 is alarm that can block the controller circuit and affects the readings of the phase sensors. In such a situation, you need to handle the claim in the company that was engaged in

  • small air flow, which depends on the rotation speed of the crankshaft;
  • how open is the throttle;
  • after the problem appeared, several cycles passed.

If the error appears periodically, then you need:

  • check the state of the air barrier;
  • fastening the pads of wiring with the computer;
  • check RHX;
  • clean the throttle pipe.

Another error that can occur - 0300. Appears 0300 in cases where RAM records frequent ignition passages.

If the error code is 0300 permanently, you need to check the following nodes:

  • spark plug;
  • nozzles;
  • ignition system;
  • an increased or reduced level of compression may be the cause of code 0300;
  • also, code 0300 may appear in case of wiring disorders.

It is impossible to ignore the appearance of an error 0300. In the future, this can lead to a deterioration in other nodes.

Master the car diagnosis in particular VAZ 2110 is easy. It will prolong the service life thanks to the timely identification of faults that fix the phase sensors.

Diagnostics of cars VAZ

Section 2 - "Diagnostics" consists of the following parts:

General information

Information on the procedure for conducting diagnostics, security measures and DST-2M diagnostic instrument. Also, a description of the electrical connections of the engine control system and the purpose of the control of the controller-ra connector are also.

Part "A" and diagnostic cards "A"

Contains the initial information on the procedure for conducting diagnostics, including "checking the diagnostic chain", diagnostic cards for malfunction signaling devices, measures in case of the case of impossibility to start the engine and other general cards.

Maps of fault codes

Map data are used if when checking the diagnostic circuit, a malfunction code is detected in the memory of the controller. If there is more than one code, the analysis and troubleshooting must always be started with CO-Dov R0560 (incorrect battali voltage) or P0562 (pony-feminine voltage of the aircraft).

Part "B". Diagnostic maps of faults.

In the absence of a malfunction code or its impermanent, this part helps the mechanics to determine the malfunction. In these cases, diagnostics should also begin with a diagnostic chain verification.

Part "C" and diagnostic cards "C" (Pro-Verk Maps of the engine control system).

This part contains information on verifying the specific elements of the engine control system, as well as by their maintenance. It has information on the elements of the fuel supply system, according to the ignition system, etc.

General

Diagnostics of the engine control system with distribution-free fuel injection is quite simple, provided that it is aware of the order of it.

Diagnosis does not require special knowledge in the field of electronics and computing equipment. Up-to-consuming basic concepts Electrical Equipment and Availability Skill Reading Simple electrical schemes. In addition, it is necessary to have experience with a digital multimeter. Once it comes up, it is necessary to understand the basics of the engine-body.

The first and most important condition for the successful diagnosis of malfunctions of any system is to understand the principle of its work. Before repairing the repair, it is necessary to clearly imagine what a good condition differs from faulty.

Introduction to Section 1 of the Guide "Device and Re-Mont" is a good start to understand the work of the SIS-theme and its elements under normal conditions.

In the descriptions of diagnostics and in diagnostic maps, certain diagnostic tools are used (see Appendix 2). These diagnostic tools are used in concrete purposes, and diagnostic maps describing the procedure for diagnostics are based on the use of these funds.

Speaking about the means of diagnosis, it is important to remember that none of the special diagnostic tools will replace Checkle. The tool and diagnostic tools are not performed by di-agnity per person and do not exclude the need for dia-gnostic maps and in the description of the procedure for conducting diagnostic.

We should not forget that behind the electronics is the basic internal combustion engine. The efficiency of the engine control system depends on the serviceability of mechanical systems.

As a reminder, a number of deviations of malfunctions are given below, which may be erroneously attributed to the electronic part of the engine control system:

Insufficient compression;

Air surface;

Restriction of the passability of the release system;

Deviations of the phases of gas distribution caused by wear of parts and improper assembly;

Poor fuel quality;

Non-compliance with the timing of the versatility.

2.2 Precautions for diagnosis of cars VAZ

When working on a car, you must follow the following requirements.

1. Before dismantling the controller, it is necessary to follow the mass of the mass of the battery from the rechargeable battery.

2. The engine start is not allowed without a reliable sub-key of the battery.

3. It is not allowed to disable the battery from the onboard network when the engine is running.

4. When charging, the battery must be disconnected from the on-board network.

5. It is necessary to control the reliability of the contacts of the wiring harnesses and maintain the cleanliness of the battery terminals.

6. The design of the pads of the wiring harnesses of the UP equation system is involved only at a certain orientation.

With proper orientation, the joint is performed without effort. The articulation with improper orientation may be at the failure of the pads, module or other elements of the system.

1. It is not allowed to join or dismember the pad of ECM elements when the ignition is turned on.

2. Before carrying out electric welding work, it is necessary to disconnect the wires from the battery and the co-boat from the controller.

3. To exclude corrosion of contacts when cleaning the engine of water with water under pressure, do not direct the spray-tel to the elements of the system.

4. To eliminate errors and damage, good nodes, the use of instrumentation not specified in the diagnostic maps is not allowed.

5. Voltage measurements to perform with a digital voltmeter with a nominal internal resistance of more than 10 MΩ.

6. If it is provided for the use of a probe with a con-told light bulb, you must use a lamp of small power (up to 4 W). The use of large power lamps, for example, from the headlight is not allowed. If the power of the probe lamp is not known, it is necessary by the simplest test lamps to make sure that its use for the controller circuit con-tribes.

To do this, it is necessary to connect the exact ammeter (digital multimeter with low resistance) follower, but with a tube lamp and submit to the "lamp - ammeter" circuit feeding from the battery (Fig. 2.2-01).

If the ammeter shows the current less than 0.25 A (250 mA), the lamp is safe. If the ammeter shows the current of pain-neck 0.25 A, the use of the lamp is dangerous.

7. The engine control system uses a controller with an 81-terminal connector, which is in a hard-to-reach place. Since the cell inside the connector pads are not available for connecting external measuring instruments, it is necessary to use special signaling of signaling system for pro-junction of the inspection of the injection circuits (Fig. 2.2-02) connected between the controller and the wiring harness.

8. Electronic devices Motor control systems are vulnerable to electrostatic discharges, so when working with them, especially with the controller, it is necessary to be careful.

ATTENTION. To prevent damage to the electrostatic discharge, it is forbidden to break up the metal housing of the controller and touch the plugs of the connector.

2.1 Description of on-board diagnostics

Under the "on-board diagnostics" means a program of pro-gram-hardware (controller, sensors, execution mechanisms), which performs the following tasks:

1) Definition and identifying errors of the functioning of the ECM and the engine, which lead:

To exceeding limit values \u200b\u200bfor the toxicity of from-working gases of cars, which are determined by the actative currently in the appropriate country with ecologic standards for passenger cars;

To reduce the power and torque of the engine, an increase in the fuel consumption, the deterioration of the driving qualities of the AV-Tomobila;

To the failure of the engine and its components (the trough of the pistons due to detonation or damage to the catalytic neutralizer in the event of skips of the fuel and air mixture).

2) Informing the driver about the presence of a malfunction to turning the troubleshooting warning.

3) Saving malfunction information. At the time of the arrival in the memory of the controller, the following information is entered:

The malfunction code according to the international classification (see Table 2.3-01);

Status flags (features) characterizing the fault at the time of the session of information exchange with the diagnostic-Kim DST-2M instrument;

The so-called stop frame is the values \u200b\u200bof the parameters important for Esud at the time of the error registration.

The fault codes and the associated additional information substantially facilitate specialists from troubleshooting in the engine control system.

4) Activation of emergency mode of operation of the ECM. When a malfunction is a failure, the system to prevent the non-negative consequences (listed above) is moving to Ava Riyan modes. Their essence is that when it fails, the controller uses a sensor or its circuit to control the engine, replacing the values \u200b\u200bstored in the PPZ. At the same time, the car will be able to up to the maintenance station.

5) Ensuring interaction with diagnostic equipment. On the presence of a malfunction, the onboard dia-gnostic system reports on the inclusion of the alarm. The on-board diagnostic system must then provide with the help of special equipment to obtain diagnostic information stored in the controller memory. To do this, a serial information transmission channel is organized in the engine control system, which includes the ECM controller (as a transceiver role), a standardized dealer for connecting a diagnostic device (Fig. 2.3-01, 2.3-02) and connecting them wire ( line). In addition to the pads, the information transfer protocol and the format of the transmitted messages are also standardized. In addition to obtaining information on the identified faults and state of the system of the installation of the engine, the system of on-board diagnostics allows you to perform a number of verification tests by controlling the performing mechanisms.

ATTENTION. If an immobilizer is not installed on the car, then to diagnose the engine control system using the DST-2M device, it is necessary to connect the contacts "18" and "9" in the block connected to the immobilizer control unit.

The main component of the on-board diagnostic system is the ECM controller. In addition to its main task (package of burning processes fuel mixes) He feels self-diagnosis.

When performing this feature, the controller monitors signals of various sensors and actuators of ECM. These signals are compared with control values \u200b\u200bthat are stored in the controller memory. And if any signal goes beyond the control values, the control-lever evaluates this state as a malfunction (for example, the voltage at the output of the sensor was zero - a short circuit for mass), generates and writes in memory of the soup-side corresponding diagnostic information ( See yourself), includes a malfunction signaling device, as well as a transition to emergency modes The works of Esud.

The system of on-board diagnostics begins to function from the moment the ignition is turned on and stops after switching the controller to "Stand By" mode (occurs after turning off the main relay). The moment of activating a particular diagnostic algorithm and its work is determined by the corresponding engine operation modes.

Diagnostic algorithms can be divided into three groups:

1) Sensor diagnostics. The controller tracking the sensor output value of the output signal determines the nature of the non-green

2) Diagnostics of ECUD executive mechanisms (Drying diagnostics). The controller checks the circuit of the control on the break, closing the mass or power supply.

3) Diagnosis of ECM subsystems (functional diagnostic style).

In the engine control system, it is possible to distinguish not-how many subsystems - ignitions, fuel feeds, maintenance of idle speed, neutralization of exhaust gases, trailing the vapor of gasoline, etc. The functional diagnosis is to conclusion about the quality of their work. In this case, the Si-stem is monitored not for separately taken sensors or expansion mechanisms, and beyond the parameters that ha-capaty the work of the entire subsystem as a whole. For example, the quality of work of the ignition subsystem can be judged by on-cast ignition skipping in the combustion chambers of the engine-la. Adaptation parameters of fuel feeds provide information on the state of the fuel subsystem. Each of the subsystems presented their requirements for the magnitude of the maximum permissive deviations of its parameters from average values.

Fault signaling device

The troubleshooting warning device in VAZ-11183, 21101 is in a combination of instruments.

Turning on the signaling device signals the driver that the onboard diagnostic system has detected the malfunction of the ECM and the further movement of the car occurs in Avarine mode. In this case, the driver is obliged as soon as possible to provide a car at the disposal of maintenance specialists.

The flashing of the alarm indicates the presence of neis-rule, which can lead to serious damage to the holes of the ECM elements (for example, ignition skips are able to damage the catalytic neutralizer).

When the ignition is turned on, the alarm must be tanned - thus the ECD checks the function of the lamp and the price of control. After starting the engine, the alarm must go out if there are no conditions for its inclusion in the controller's memory.

To protect against accidental, briefly showing errors that can be caused by the loss of contact in electrical connectors or unstable work Motor, the signaling device is turned on through a certain period of time after detecting the ECM failure. At the current gap, the on-board diagnostic system checks the presence of a malfunction.

After eliminating the causes of the malfunction, the bundle warning device is turned off after a certain delay time during which the fault does not appear, and provided that there are no other fault codes in the controller's memory requiring the signaling device.

When cleaning (deleting) malfunction codes from the controller memory using diagnostic equipment Sig-Valveor goes out.

Procedure for performing car diagnostics VAZ

All diagnostic works should always be started with "checking the diagnostic chain"

Checking the diagnostic circuit provides an initial system check and then refers mechanics to other manual cards. It must be the starting point of all works.

All management is constructed according to a single scheme, in accordance with which the test of the diagnostic chain refers furs to certain cards, and those, in turn, can be alleged to others.

It is necessary to strictly adhere to the sequence specified in the diagnostic maps. Violation of the diagnostic sequence can lead to incorrect conclusions and replace good nodes.

Diagnostic maps are built on the application of the DST-2M diagnostic device. It provides mechanics in-formation about what is happening in the engine control system.

The DST-2M device is used to control the ECM. The DST-2M device reads and displays the information transmitted by the controller to the diagnostic shoe.

Checking the diagnostic chain

After inspection of the subcontrol space, the first step of all diagnostics or search for the causes of non-compliance with the norms of toxicity is the test of the dia-Gnostic chain described in section 2.7a.

The correct procedure for diagnosing a malfunction is prescribed by the following three main steps:

1. Check the performance of the on-board system diagnostics. Check is carried out by performing a test of the diagnostic chain. Since this test is a starting point of diagnostics or searching for the non-fulfillment of the norms of toxicity, it is always necessary to clean it from it.

If the onboard diagnostics does not work, checking the diagnostic chain displays to a specific diagnostic car. If the onboard diagnostics works properly, go to step 2.

2. Verification of the availability of current non-English codes. If you have current codes in the controller's memory, you must contact the dia-gnostic cards with the corresponding numbers. In the absence of codes, go to step 3.

3. Control of the data transmitted by the controller. To do this, read information using the DST-2M device.

Description of the device and the parameters displayed by them below. Typical parameter values \u200b\u200bfor specific operations are given in Table 2.4-01.

Casodies of malfunction of cars VAZ 2110, VAZ 2112, VAZ 2114, 2115, Lada Kalina, Prior you can find

VAZ car diagnostic maps

Greetings you ladies and gentlemen! At the very least, I really want to believe that there are also a fair sex representative among you! If you are the happy owner of modern classics in the form of a car brand VAZ 2114, then sooner or later, you will have to face the errors of the control system of the ECU. Help to understand these unknowns for an ordinary driver combinations - the main goal of this article. VAZ 2114 errors, as in many others vehicles - This is the main tool for the message to the driver of a malfunction of any mechanism, the unit, or the automotive system assembly.

Definition of malfunction on your own

Of course, we are like real drivers, always strive to solve any problem with your own hands. Well, do not like you when someone else's uncle treats your "swallow" and I understand you perfectly perfectly. However, if we consider the question of the on-board computer, then everything is somewhat different, but in certain cases it can cope on your own. Immediately I warn you: do not listen to the pessimists who will prove with foam on the lips that the computer errors do not win. But remember once and for all, error codes will differ from the hundred options, because by and large we will test dashboardwithout resorting to the help of the very "bortovik". Instead of a number with a four-digit value, we will have a double-digit.

Before you tell you about various combinations, perform a few simple actions. They will help not only determine the firmware version, but also to find out about the faults. Self-diagnosis, starts with these actions!

  • Find the odometer button and hold it.
  • Turn the key to position 1.
  • Release the odometer (start running the arrows).
  • Click on the odometer and immediately release (information about the firmware appears).
  • Again, repeat the previous steps, after which, when the fault persuasion, you will see their error codes.

In the case when the lamp burns Check EngineThis means about failure in the electronics system, then do not do without specialists. In other cases, after these actions, using the following information, it will be possible to read errors. Combinations that may appear on the instrument panels:

  • 1 - failure of the microprocessor;
  • 2 - faulty fuel level sensor;
  • 4 - increased voltage in electrocups;
  • 8 - low voltage in electrocups;
  • 13 - there is no signal from the oxygen indicator;
  • 14 - elevated coolant temperature;
  • 15 - reduced coolant temperature;
  • 17 - Low voltage onboard network;
  • 19 - a malfunction of the sensor determining the position of the crankshaft;
  • 24 - failed a speed sensor;
  • 41 - phase sensor error;
  • 51 - constantly storage device, it is unstable;
  • 53 - co-potentiometer is faulty;
  • 61 - The lamb-probe is not working correctly.

Even by removing the fault, the corresponding codes will still go to the error panel. "How to throw out these testimony?" You ask. Yes, very simple! We turn on the ignition and disconnect the plus terminal from the battery for a few seconds.

After that, check the result of almost 100% warranty, which, with a corrected error, the problems will disappear. Another nuance that can mislead you, this is the addition of errors. That is, if there are several of them, for example: 24 and 41, then you will see the number 65.

Diagnosis Special Equipment

To conduct a "survey" directly onto the on-board computer, own forces Most likely it will not be possible. Of course, if you have special skills and there is a special laptop, then it is quite real and telling how to check this node you do not need. However, in most cases, you have to contact specialized Services. There are so-called glitches. In other words, the situation where the information demonstrating the computer does not respond true. Of course, like any electronics, "bortovik" can give a failure. I hurry to calm you - it is more exception than the rule. If somehow it was still possible to lure the ill-fated four-digit code from the system, although the answer to the question of how I already gave it to see. But still consider the most important faults that can define on-board computer:

  • 0102, 0103 - The mass flow sensor was faced;
  • 0122, 0123 - The throttle position sensor was faced;
  • 0300 - ignition pass, lead to problems when starting the car;
  • 0335, 0336 - failure of the detonation sensor;
  • 0480 - the cooling fan does not work;
  • 0505-0507 - the idling sensor failed;
  • 1500 - a break in the fuel pump circuit;
  • 1602 - the most popular error, means disappearing the power of the on-board network;
  • 1689 - means of incorrect data coming from onboard computer, including error codes;
  • 0217 - Engine overheating.

Of course, it is only a small part of the five sheets of A4 format of such codes. But at the most common moments, I pointed your attention. I advise everyone from you to acquire my own table where such decryption is presented. I want to warn right away, there are no codes of the injector breakdown, but all adjacent mechanisms are under strict control of the on-board computer. I want to believe that this article I achieved the tasks and helped at least one of you. Believe me, I will be enough. Well, okay, something suffered me. Good and good and new meetings!

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