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asks: Maxim Perepyolkin.
Essence of the question: How to decipher error codes on the instrument panel VAZ-2112?
Good day, please help me to understand my situation, and to be more precise in the error codes on the instrument panel. That’s how much I don’t try to do it, nothing comes out, everything is somehow too complicated for me, I don’t know much about the Internet myself to find it, and then a friend advised your site, they say you will find everything there and if you personally help.
So I decided to ask such a question, I hope for the full schedule of each code and what it is responsible for, so that I looked at it and understood what was happening, and did not sit as I thought, what the hell is this and why. Traveling constantly for diagnostics is very expensive, thanks in advance.
We cannot provide you with exact information. Information varies from source to source. There are those that are stored in the computer, but the fact that in the self-diagnosis mode is very generalized information.
Usually the instrument panel shows one error - a high level of coolant temperature.
Instrument panel self-diagnosis
Extract from open sources
2
- Excess voltage.
3
- Fuel level sensor error *.
4
- Coolant temperature sensor error *.
5
— Outside temperature sensor error**.
6
— Engine overheating***.
7
— ***.
8
— Brake defect***.
9
— Discharge of batteries***.
E- Recognition of an error in the data packet embedded in the EEPROM.
Note:
* – an error is registered if within 20 sec. a break in the sensor is detected;
** – an error is registered if within 20 sec. valid sensor data are not recognized (indication on the LCD "- °С");
*** – accompanied by an acoustic signaling device.
Modern cars are abundantly filled with all kinds of electronics. Therefore, carrying out computer diagnostics has become quite commonplace in car repair.
No exception are VAZ 2110 cars with injection engines, which can even be checked with the help of computers, special adapters and software with your own hands.
Why do we need diagnostics
Let's first understand why troubleshooting and whether it is required specifically for your car.
The main advantage of diagnostics is the ability to save money, time and modern nerves. If the car starts to behave inappropriately, some extraneous sounds appear, the stable operation of the engine is disturbed, then there are two options:
- To study all systems manually by dismantling and testing, spend a lot of time and nerves. The probability of finding the cause of the breakdown is far from 100%.
- Do-it-yourself computer diagnostics by connecting a special adapter, cable to the computer. The program will scan the car and be able to issue the appropriate error codes. After studying our material with error codes, you can easily find the reason why the car began to behave abnormally.
Is it worth going to the service station?
The quality of diagnostics at service stations is often not much different from self-checking. Having an adapter and a cable for connecting the device allows you to deal with the problems of your own car without outside interference.
By contacting the service station, they can diagnose you with the same equipment, only at the same time they will ask you for a decent amount of money. If you do not control the progress of the check yourself, the masters may claim to have found other errors that do not really exist.
The result of contacting a dubious service station for the purpose of diagnosis can be serious financial costs and a long absence of a car at your disposal.
The only option when it is worth contacting a car service is the lack of diagnostic equipment and the presence of good friends among auto mechanics.
What is needed for work
If you decide to troubleshoot your VAZ 2110 yourself, then you will need a few basic things for this job.
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Device |
Peculiarities |
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This is a kind of microcircuit enclosed in a case. It allows you to connect the "brains" of your car with a computer and display the relevant information on the screen of a laptop or tablet. |
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Used to connect the adapter to the car and computer. Usually comes with an adapter |
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Computer |
When choosing a computer, rely on what you have - a desktop PC, tablet, laptop. A portable computer is better, since it is difficult to connect a car to a stationary PC. Cables longer than 5 m are not suitable for diagnostics, so keep this in mind when connecting to a PC |
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The necessary software can be found on the Internet, or you can take the software provided with the adapter. There are no problems with the search for software today. |
When choosing an adapter and cable, take into account the features of your car. Not all adapters are universal. For the VAZ 2110, an example of an excellent adapter is the ELM327. We'll talk about it later.
How it works?
Now let's figure out how it all works together and how you can diagnose a car with your own hands.
- The diagnostic program sends signals through the adapter to the vehicle controller via the COM port.
- The controller sends back information.
- The program processes the received data, displaying the corresponding result on the screen of your computer.
- Data exchange is carried out according to the appropriate protocol. Depending on the car manufacturer, the protocol may be different, have their own characteristics.
- To simplify diagnostics, many manufacturers use the universal ODB II protocol. Its capabilities are limited and not adapted to all cars. It is ideal for the VAZ 2110 model, since a dozen does not differ in an increased amount of electronics, unlike more modern cars.
- 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 in order to understand what kind of breakdown overtook your car. Further, appropriate actions are taken to eliminate them.
An essential advantage of diagnostics is the fact that after it you know exactly what kind of malfunction you are dealing with. You don't have to go through half the car to find the source of the problem.
Types of diagnostics
Computer diagnostics of a car can be divided into three main types, one of which is not directly related to the VAZ 2110.
- Suspension check. It must be carried out if the rubber has begun to wear unevenly or extraneous sounds are heard during movement. Diagnostics will determine the causes of the drift of the rear and front axles, which you can notice when entering turns at speed.
- Engine check. The main share of diagnostic measures falls on power units. The computer and the adapter will help you if there is an instability of idling, the car is difficult to start, fuel consumption increases, power drops, etc.
- Automatic transmission check. Since the VAZ 2110 is not equipped with an automatic transmission, there is no point in diagnosing it.
Connectors
You decide to run a diagnostic. But what and where to connect?
On the VAZ 2110, the 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 should perform the following sequence of operations:
- An adapter is inserted into the connector near the OBD steering column;
- The computer must already be turned on;
- When the block is connected to the adapter, you need to turn on the ignition. Without power, the program will not be able to work and read data;
- Next, we connect the program with which testing is carried out;
- If all elements are operational, the car electronics will be displayed on the computer monitor;
- Start checking.
Pinout
Since for verification we need a diagnostic block, that is, OBD, it will not be superfluous to find out about the features of its pinout. So you can easily figure out how to connect:
- Contact A - is responsible for connecting the ground;
- Pin B - Required to connect L-Line. Please note that not all vehicles have this contact;
- Contact M - used to connect K-Line;
- Contact H - power supply + 12V;
- Contact G - controls the operation of the fuel pump.
Separately, we will introduce you to the ELM327 adapter, with the help of which many VAZ 2110 owners perform full-fledged diagnostics on their own.
ELM327 is one of the latest OBD developments. This scanner is used to check cars using a computer. The key advantage is that the device supports all known OBD protocols and interacts with many diagnostic programs. A USB cable is used to connect the device to a computer.
The software for the ELM327 is mostly free, although some software is only available for payment.
The adapter can work on computers with different operating systems. Namely:
- windows;
- macOS;
- Linux;
- PalmOS;
It is possible to fully reveal the capabilities of the scanner only through properly selected software. For self-diagnosis, software for scanning the gearbox and engine is available for free. Commercial versions of the programs allow you to additionally check other components of the car.
Key Features
Let's get acquainted with the possibilities provided by the ELM327 chip:
- Reads error codes, vehicle malfunctions;
- Displays codes and their description;
- Export data for printing, if necessary;
- Deletes error codes;
- Displays data in the metric system of measurement and the system used in the United States;
- Records, saves data, builds graphs;
- It has an acceleration counter from 0 to 100 km / h, which allows you to carry out diagnostics on the go.
Checking many parameters of the car must be carried out on the go. Not all adapters are suitable for this, so it is important to choose the right equipment for your requirements.
Equipment
By purchasing this adapter, you get:
- High precision adapter based on ELM327 processor;
- OBDII cable;
- Cable for connection with a computer;
- CD with free software.
For the adapter to work and receive information, it is not at all necessary to have a powerful computer. The parameters of the simplest laptops are quite enough to diagnose the VAZ 2110.
An independent CD allows you to seriously save money, get objective information about the condition of your car, and also save yourself from unnecessary financial costs, which will definitely appear when contacting a service station.
To carry out a full diagnosis, you need to know the error codes VAZ 2114 and 2115. This will make it easier to find the problem. In fact, without knowing the decoding, it makes no sense to start a diagnosis. Having received the result in the form of a set of numbers, you will only scratch the top of your head, and the problem will remain unknown.
As a rule, the error code is the same for one type of controller. On several similar models, the same on-board computer can be installed. The same controllers with models 14 and 15 also have VAZ 2113 and Samara-2.
Information about the installed controller is available in the technical documents of your vehicle. Information about this can also be found on the Internet. In any case, before diagnosing, find a detailed list of errors.
Most common indications
Error codes VAZ 2114 and 2115 are of two types. Some meet frequently. Others are somewhat less common. To begin with, we list the most common indications:
- R1602- talks about problems with the engine controller. Occurs quite often. It is treated by replacing the problem node;
- (-P0343)- failure of the crankshaft position sensor or its unstable operation;
- P0217- can talk about two malfunctions. The first is the need to change the engine oil, the second is overheating of the engine.
These are the most common problems. But in fact, there are many more error codes.
Other combinations
The errors described above are not the only ones. And in practice, you can find a large number of different codes:
- Р0101-Р0103 these codes are related to the fuel consumption sensor. Most often, the device needs to be replaced;
- Р0116-Р0118- . There may be a wiring problem, so it is advisable to first check the power circuit to the sensor;
- Р0112-Р0113 This code occurs when there is a malfunction in the intake air temperature sensor. Often occurs when there is a short circuit in the wiring;
- A number of errors (P2122, P2138, P0222, P2123, P0223) report problems with accelerator position control;
- Р0130-Р0134- the oxygen level sensor in the mixture should be replaced. Before this, check the condition of the wiring that supplies power to this sensor;
- Р0201-Р0204- problems with injectors. Possible blockage or short circuit. Be sure to check the wires supplying power to them;
- Р0136-Р0140, such codes indicate a malfunction in the sensors that control the formation of a mixture in the injection system;
- Р0326-Р0328- failure of the detonation fixing device. Occasionally, it may appear when the engine control unit fails;
- P0351-P0352, P2301, P2304 all these indications indicate incorrect operation of the ignition coils, usually with these errors the engine troit;
- Р0691-Р0692- failure of the first fan relay operating in the cooling system;
- P0485- erroneous voltage signal coming from the cooling fan;
- Р0693-Р0694, the second relay of the cooling system has failed. With such a breakdown, boiling of antifreeze and overheating of the engine is possible. To avoid a more complex breakdown, you need to fix the problem;
- Р0422 there was a failure of the converter, the replacement of the unit is required;
- Р0560-Р0563- disturbed voltage in the on-board network, the condition of the battery is checked;
- Р0627-Р0629- an erroneous signal from the fuel pump sensor. If the engine starts at the same time, then the problem is in the sensor. A malfunction of the fuel pump itself makes it impossible to start the engine.
Reset errors. To reset the controller readings, disconnect it from the power supply. To do this, turn off the engine by turning off the ignition. After that, the positive terminal is removed from the battery, after 10-15 seconds it is put back in place. All errors are cleared. You can start the engine and carry out control diagnostics.
Other diagnostic methods
If there is no scanner or laptop at hand, then you can carry out a mini-diagnostics. To do this, hold down the odometer button (located on the dashboard). At the same time, the ignition is switched on. Then the button is released. At the same time, the arrows of the instruments begin to jump. Next, press the odometer once. The firmware number will appear on the display. Press and release the button again.
So you can see the two-digit error code. True, it should be noted that not all malfunctions can be diagnosed in this way. Therefore, it will not replace a full diagnostic.
Conclusion. Engine control problems are not uncommon. Therefore, the skill of self-diagnosing problems will not be superfluous. To do this, you need to know the error codes VAZ 2114 and 2115. You will also need a scanner or a laptop with the program installed. With the use of this equipment, difficulties usually do not arise.
Thanks to the equipping of domestic cars with on-board computers, it has become easier for car owners to search for malfunctions in the operation of cars. To identify the problem, it is enough for a person to carry out diagnostics, which will show error codes. This material will allow you to find out what VAZ 2114 errors can occur and how to deal with them.
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Vehicle self-diagnosis
Before proceeding to decipher the error codes of the on-board computer on the VAZ 2114 and 2115, we will talk about self-diagnosis. It should be borne in mind that checking the vehicle on its own and using special equipment at the service station can give different results. The equipment available to professionals will allow more accurate troubleshooting than diagnosing problems using the dashboard. Combinations of breakdowns will also be different. Nevertheless, self-diagnosis of malfunctions of the eight-valve "four" is a useful thing.
How to view and learn about the breakdowns that the control unit fixed on its own:
- First you need to sit in the driver's seat and hold down the odometer button on the speedometer.
- Then insert the key into the ignition lock and set it to the first position.
- After turning the key, release the pressed button. This will cause the needles on the speedometer, tachometer and other gauges to move quickly.
- Then you need to press the odometer button again and release it. An inscription with the firmware version will appear on the tidy.
- After the third press of the odometer button, the VAZ 2114 error codes will start to light up on the display.
How to reset errors yourself
After self-diagnosis of errors and elimination of their causes on carburetor or injection engines, a malfunction message may remain on the standard panel. If the problem has been removed, this means that the code combination has remained in memory. We will consider the description of faults below, and now we will tell you how to remove the code from memory. To delete after testing the tidy, when VAZ 2114 errors appear, the codes themselves must be written down. After that, the daily mileage reset button is pressed again, this will remove the malfunction from the memory of the control unit.
Reset "Check Engine" error
It often happens that the instrument panel 2114 8 or 16 valves gives a check error - an engine malfunction, the orange icon is on. Self-diagnosis does not always allow you to accurately check and determine how to fix such a problem. To troubleshoot and find a solution, you should perform a more detailed diagnosis of the car using a computer and additional equipment. Perhaps, during diagnostics, an unknown error indicates a malfunction in the microprocessor, on-board network or sensors. After the problem is fixed, the check may remain.
The "Check Engine" indicator indicates a problem with the engine
How to reset the breakdown code:
- First, turn on the ignition, the car engine does not need to be started.
- Then open the hood. Use a wrench to loosen the bolt on the negative battery terminal.
- Wait about one minute, after which the battery terminal must be replaced.
- Close the hood and turn off the ignition.
- After that, turn it on again and start the car engine. If the check remains, then it should go out on its own after a while. If the above instruction did not work and the remedy did not help, then you need to look for the cause of the problem and fix it.
Meaning and interpretation of error codes
To read faults, first consider a list with a table of UEr errors that are issued by self-diagnosis (the author of the video is Ivan Vasilyevich).
| Number | Description |
| 1 | Malfunctions in the functioning of the microprocessor. |
| 2 | Self-diagnosis of the VAZ 2114 fixed a malfunction in the electrical wiring of the fuel gauge controller. It is possible that the signal from the sensor is too high or too low. It is necessary to test the controller and ring the wiring. |
| 4 | Increased voltage in the on-board network. |
| 8 | Reduced voltage. What to do: in this and in the previous case, the battery and generator are to be checked. |
| 12 | Malfunctions in the diagnostic circuit of the indicator on the dashboard. |
| 13 | The control unit cannot determine the signal from the oxygen controller. |
| 14 | An increased signal is being received from the refrigerant temperature controller. |
| 15 | A problem in the operation of DTOZH () - the on-board computer detects a reduced signal level. |
| 16 | High voltage in car wiring. |
| 17 | Reduced voltage in the wiring. |
| 19 | Fixed problems in the work of the DPKV (). An incorrect signal is being sent to the control unit. |
| 21 | Problems in the operation of the TPS controller (throttle position sensor). There may be a problem with the throttle valve. Check wiring and sensor. |
| 22 | A reduced signal is given from the TPS. |
| 23 | The intake air temperature controller is high. |
| 24 | There were problems in the operation of the speed controller. Its failure can be diagnosed by a non-working speedometer. |
| 25 | Reduced signal from the incoming air temperature controller. |
| 27,28 | Incorrect signal coming from the CO sensor. |
| 33,34 | Malfunctions of the DMRV (mass air flow sensor). Check the connection circuit of the flow meter and its operability. |
| 35 | The ECU has determined the deviation of the idle speed values. The sensor may be defective. |
| 41 | Incorrect pulse coming from the phase controller. |
| 42 | Malfunctions in the wiring connection of the electronic ignition. |
| 43 | An incorrect pulse is being supplied from the knock controller. |
| 44,45 | Problems with the composition of the combustible mixture. It can be depleted or over-enriched. |
| 49 | Vacuum loss test. |
| 51,52 | Malfunctions in the functioning of the PROM or RAM. |
| 53 | CO controller pulse missing. Open circuit or sensor failure. |
| 54 | There is no pulse from the octane corrector controller. |
| 55 | With a reduced load on the power unit, the ECU detects lean. |
| 61 | Malfunctions in the oxygen controller. |
These codes can add up if you have the number 6 displayed, this may indicate errors 2 and 4, or with the number 9 - errors 1 and 8.
In order to immediately read and decipher problems during diagnostics, it is advisable to download and always carry a printout with a description with you. When diagnosing using a computer, the codes on the 21124 engine may differ depending on the car model. To read the codes, you need to know how they should be decrypted. It is necessary to reset errors after they are deleted (the video was filmed and published by the KV Avtoservis channel).
| Number | Decryption |
| p0102, p0103 | An incorrect pulse is supplied from the DMRV controller. This means that you need to check the wiring. |
| p0112, p0113 | 112 or 113 - the intake air temperature sensor needs to be replaced. |
| p0115-p0118 | Errors from 0115 to 0118 - the antifreeze controller gives an incorrect pulse. There may be a problem with the wiring or the sensor itself. |
| p0122, p0123 | DPS. An incorrect signal is being sent from the controller. If the wiring is damaged, interference may occur. |
| p0130, p0131 | The lambda probe requires diagnostics and replacement. |
| p0135-p0138 | Error 0135 and above - the lambda probe heating regulator needs to be replaced. |
| p0030 | The ECU reports a malfunction in the electrical circuit in the area from the lambda probe heater to the converter. With error p0030, it is necessary to test the electrical circuit and the sensors themselves. |
| p0036 | P0036 - a break in the wiring of the DK-2 heating device has been detected. |
| p0300, p0302 | When codes 300 and 302 appear, the ECU reports a misfire. |
| p0301 | Passes were recorded in the cylinders of the power unit. Compression needs to be checked. |
| p0325 | The knock sensor is not working properly. In particular, we are talking about a broken wiring connection. |
| p0335, p0336 | P0036 error VAZ 2114 or 10335 - the DPKV has failed or its connection circuit is damaged. If the wiring is intact, then the sensor changes. |
| p0340 | Failure of the phase sensor. |
| p0341 | Error VAZ 2114 0341 means a malfunction in the camshaft controller. |
| p0342, p0343 | Malfunctions in the phase controller. With such an error, detonation of the car engine is possible. Most likely, only a replacement will solve the problem. |
| p0346 | P0346 VAZ error - also a malfunction of the phase controller. |
| p0363 | P0363 - Combustible mixture misfire detected. In cylinders that refuse to work, the fuel supply is turned off. |
| p0422 | Failure in the functioning of the neutralizing device. |
| p0443, p0444, p0445 | Malfunctions 0443, p0444 and 0445 - adsorber regulator, purge is not carried out. |
| p0480 | The engine cooling fan has failed. Overheating of the power unit is possible if it is not replaced in time. Before replacing, check the wiring connections. |
| r0501-r0504 | Error 0501 VAZ 2114 and error code 0504 - the speed controller refuses to work. The device needs to be replaced. |
| p0505, p0506, p0507 | The idle speed sensor does not work or does not work correctly. Its failure can lead to idle speed float. Possible engine breakdown. The controller itself is tested and the wiring is called. |
| p0607 | The knock controller is intermittent. |
| p1135 | Error 1135 VAZ 2114 - you need to test the oxygen controller. |
| p6060 | Processor failure. If the problem persists after resetting the code, then the controller needs to be replaced. |
| p2020 | It is necessary to test the intake flap position sensor. |
| p1617 | Error 1617 - Rough road controller, wiring damage. |
| p1513 | A short circuit has occurred in the idle speed sensor wiring. It is necessary to test the electrical circuit and check the contacts. |
| p1602 | Failures in the supply of voltage in the electrical network of the car are fixed. |
| p0560 | Incorrect voltage level in the on-board network. This parameter can be overestimated or underestimated. The car battery, as well as the generator unit, are subject to testing. |
| p1514, p0511 | The appearance of these errors reports the problem of an open or short circuit in the wiring of the IAC (idle speed controller). First of all, diagnose the sensor contacts, and then ring the circuit, if possible. The sensor itself may also be damaged. |
| p1303 | P1303 - Air-fuel mixture misfire reported in cylinder 3. The malfunction must be corrected as soon as possible, since it can be critical for the converter. |
| p1578 | Throttle valve malfunction. Literally, the problem stands for “zero adaptation parameter out of range”. There are several options for solving the problem. The first step is to clean the throttle body. If this does not help, then the throttle is adapted. To do this, you must activate the ignition, and then after 40 seconds start the engine. Alternatively, you can test and tighten the contact terminals on the throttle. |
| p1621 | Malfunction of random access memory, memory problems in the control unit. Detailed testing of the computer is required. |
| p0650 | Malfunctions in the control circuit of the on-board computer error code indicator |
| p2135 | P2135 - problems with the throttle assembly. If replacing the sensor and cleaning the damper did not help, then the problem may have to be solved by flashing the on-board computer. |
| p2187 | Lean mixture in ICE cylinders. You need to do a detailed diagnosis of the problem. |
Diagnostics using special equipment
4. Launch software for testing
The diagnostic process using special equipment is to check the car using a laptop. To connect to the diagnostic connector, you will need a cable with an adapter. Using this cable, we connect the computer to the connector via the USB output. Software will also be required for testing, the power of the computer used is not important. There are many versions of different programs for testing on the Internet.
Diagnostics is done like this:
- Before starting the test, it is recommended to inspect the vehicle. Check the amount of consumables - engine oil, brake fluid, coolant.
- Find the diagnostic connector and connect your laptop to it. If you have a dedicated scanner, then that's even better. But since finding a scanner is not so easy, and buying one is not cheap, you can use a laptop. Before starting testing, you must activate the ignition. It is not necessary to start the power unit.
- After connecting, the utility for testing is launched. The software interface may vary. When you start the software, graphs or a list of parameters with numbers may appear. This information will allow you to draw conclusions about the operation of the power unit.
- The check starts. Fault codes will appear on the laptop screen. Use the information in this article to decrypt. We could not describe all the codes, but deciphered those that are most common. Usually, when downloading a program to a computer, users are provided with a separate file with a description of the malfunctions.
- After decryption, the problem is repaired.
