Error 4 VAZ 21124 16 valves


Errors on the VAZ 2110 on-board computer: note to owners of “Ten”

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

Features of computer diagnostics of a car

How is diagnostics carried out using all the equipment and software listed above? A detailed description of this procedure will help you answer this question:

  • diagnostic software transmits a request to the car controller via the adapter;
  • the controller, in turn, provides all the necessary information about the state of the main on-board systems of your car;
  • the software analyzes the data and displays the result in the most readable form;
  • Using information on the Internet, you decipher error codes obtained as a result of diagnostics and identify problems with certain components and mechanisms of the car.

Data is transferred to the computer via the ODB II protocol. It has a number of disadvantages, but the VAZ-2110 is quite suitable for diagnosing a car, since domestic cars are equipped with significantly less electronic equipment than modern imported equipment.

Diagnostics

There are two ways to diagnose the condition of car systems. Let's start with the first one, which does not involve the use of additional equipment.

To start the self-diagnosis function, you need to press a button that resets the mileage for the day. Turn on the ignition. You will see how the arrows on the instruments begin to move from one position to another. This means that the diagnostics of the VAZ 2110 has been launched and information has begun to flow from the phase sensors to the ECU. After the process is completed, the RAM will transmit numbers to the display that will show the state of the car’s systems.


VAZ 2110 car

Decoding combinations

When the self-diagnosis is completed and the number 0 is displayed, this means that everything is in order with the vehicle and all systems are working as expected:

  • if 1 is displayed, this indicates that there are problems with the microprocessor or the RAM is failing;
  • 4 — high voltage in the network, more than 16 V;
  • if 8, then low.

If there is not one fault, but several, then a figure equal to the sum of faults will be displayed. If 6 lights up, then this will mean the sum of the numbers 2 and 4. If 14, then most likely there are three malfunctions at once, namely 2, 4 and 8.

The simplest diagnostics that is available to the driver without the use of additional equipment. It will, of course, help identify some faults, as well as show the condition of the components and systems of the VAZ 2110 as a whole. But to specifically identify all faults and decipher information coming from phase sensors, additional tools are needed. For example, the on-board computer STATE, which provides more data.


Daily mileage reset button

Error codes

It is recommended to carry out diagnostics and flashing of the ECU with the on-board PC removed.

Now let's decipher the codes of all ECU error codes that can pop up when connecting the car's on-board computer to a laptop or tablet PC: 0102 - Low signal level of the mass air flow sensor 0103 - High signal level of the mass air flow sensor 0112 - Low level of the intake air temperature sensor 0113 - High Intake air temperature sensor level 0115 - Incorrect coolant temperature sensor signal 0116 - Incorrect coolant temperature sensor signal

0117 Coolant temperature sensor signal low 0118 Coolant temperature sensor signal high 0122 Throttle position sensor signal low 0123 Throttle position sensor signal high 0130 Oxygen sensor 1 signal incorrect 0131 Oxygen sensor 1 signal low 0132 Signal high crankshaft sensor 1 0133 Slow response of oxygen sensor 1 0134 No signal from oxygen sensor 1 0135 Malfunction of the heater of oxygen sensor 1 0136 Short to ground of oxygen sensor 2 0137 Low signal level of oxygen sensor 2 0138 High signal level of oxygen sensor 2 0140 Open circuit of oxygen sensor 2 0141 Heater fault oxygen sensor 2 0171 Mixture too lean 0172 Mixture too rich 0201 Injector 1 control circuit open 0202 Injector 2 control circuit open 0203 Injector 3 control circuit open 0204 Injector 4 control circuit open 0261 Injector 1 circuit short to ground 0264 Injector 2 circuit short to ground 0264 Injector 2 circuit short to ground 0267 Short to ground in the injector circuit 3 0270 Short to ground in the injector circuit 4 0262 Short to +12V in the injector circuit 1 0265 Short to +12V in the injector 2 circuit 0268 Short to +12V in the injector 3 circuit 0271 Short to +12V in the injector 4 circuit 0300 Many passes for combustion 0301 Misfire in cylinder 1 0302 Misfire in cylinder 2 0303 Misfire in cylinder 3 0304 Misfire in cylinder 4 0325 Open circuit of knock sensor 0327 Low signal level of knock sensor 0328 High level of knock sensor signal 0335 Incorrect signal of crankshaft position sensor 0336 О sensor signal error crankshaft position 0340 Phase sensor error 0342 Low phase sensor signal 0343 High phase sensor signal 0422 Low converter efficiency 0443 Malfunction of the canister purge valve circuit 0444 Short or open canister purge valve 0445 Short to ground of the canister purge valve 0480 Malfunction Cooling fan circuit voltage 1 0500 Incorrect speed sensor signal 0501 Incorrect speed sensor signal 0503 Speed ​​sensor signal interruption 0505 Idle speed controller error 0506 Low idle speed 0507 High idle speed 0560 Incorrect on-board network voltage 0562 Low on-board network voltage 0563 High on-board network voltage 0601 ROM error 0603 External RAM error 0604 Internal RAM Error 0607 Knock Channel Failure 1102 Oxygen Sensor Heater Resistance Low 1115 Oxygen Sensor Heater Circuit Faulty 1123 Rich Idle 1124 Lean Idle 1127 Rich Partial Load 1128 Lean Partial Load 1135 Circuit oxygen sensor heater 1 open, short circuit 1136 Rich mixture in Light Load mode 1137 Lean mixture in Light Load mode 1140 Measured load differs from calculation 1171 CO potentiometer low level 1172 CO potentiometer high level 1386 Knock channel test error 1410 Canister purge valve control circuit short short to +12V 1425 Control circuit of the canister purge valve short circuit to ground 1426 Control circuit of the canister purge valve open 1500 Open circuit of the fuel pump relay control circuit 1501 Short circuit to ground of the fuel pump relay control circuit 1502 Short circuit to +12V of the fuel pump relay control circuit 1509 Overload of the regulator control circuit a idle speed 1513 Idle speed control circuit short circuit to ground 1514 Idle speed control circuit short circuit to +12V, open 1541 Fuel pump relay control circuit open 1570 Incorrect APS signal 1600 No communication with APS 1602 Loss of on-board power supply voltage to the ECU 1603 EEPROM error 1606 Sensor Rough road sensor incorrect signal 1616 Rough road sensor low signal 1612 ECU reset error 1617 Rough road sensor high signal 1620 RFOM error 1621 RAM error 1622 EPROM error 1640 EEPROM Test error 1689 Incorrect error codes 0337 Crankshaft position sensor, short circuit Ground fault 0338 Crankshaft position sensor, open circuit 0441 Air flow through the valve is incorrect 0481 Malfunction of the cooling fan circuit 2 0615 Open circuit of the starter relay 0616 Open circuit of the starter relay circuit short circuit to ground 0617 Malfunction of the starter relay circuit short circuit to +12V 1141 Malfunction of the oxygen sensor 1 heater after the neutralizer 230 Malfunction of the fuel pump relay circuit 263 Injector Driver 1 Malfunction 266 Injector Driver 2 Malfunction 269 Injector Driver 3 Malfunction 272 Injector Driver 4 Malfunction 650 Check Engine Lamp Circuit Malfunction

Diagnostics using additional tools

To diagnose cars, including the VAZ 2110, various equipment is used, which is connected to a special connector. Thanks to this equipment, which is not particularly complicated or expensive, you can get a complete picture of the condition of the car.

The service station uses a personal computer to which data from phase sensors is transmitted via a special cable.


Adapter for car diagnostics

Bluetooth devices have appeared on the market that allow diagnostics using a smartphone, tablet or laptop.

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

This makes it possible not only to obtain more data, but also to present it in a more visual form. This method allows a driver, even with little experience in operating a car (in our case, a VAZ 2110), to obtain all the data about his car.

But most drivers prefer to carry out diagnostics at a service station. So that you are aware of the data that the on-board computer produces through RAM from the phase sensors, we will present the transcripts of common errors.

Decoding combinations

If problems arise with electrical equipment, they must be corrected immediately. Error code 1602 will indicate that not everything is in order in this matter.

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

Error 1602 sometimes appears if:

  • the battery was disconnected for some time;
  • there was a voltage surge when starting the engine, for example, in cold weather.

But if error code 1602 appears all the time, you need to check the entire network. Perhaps there is a break. If error code 1602 constantly appears, you can try cleaning the battery terminals. Check if they are securely fastened. Didn't help, error 1602 still appears? Check the circuit. You need to start from the positive terminal of the battery. Start with the electrical fuse and fuse link.

Check the ground of the ECU, TPS. Sometimes it happens that the cause of error code 1602 is an alarm that can block the controller circuit and affect the readings of the phase sensors. In such a situation, you need to file a claim with the company that installed the alarm.

Error 0102 indicates a low signal level, which is reported from the mass air flow phase sensor.

Code 0102 will be stored in RAM memory in the following situations:

  • low air consumption, which depends on the speed of rotation of the crankshaft;
  • how open the throttle is;
  • Several cycles have passed since the problem appeared.

If the error appears periodically, then you need to:

  • check the condition of the air barrier;
  • fastening the wiring block to the ECU;
  • check IAC;
  • clean the throttle pipe.

Another error that may occur is 0300. 0300 appears in cases where the RAM detects frequent misfires.

If error code 0300 is displayed constantly, then you need to check the following components:

  • spark plug;
  • nozzles;
  • ignition system;
  • increased or decreased compression levels may be the cause of code 0300;
  • Also, code 0300 may appear in case of wiring failure.

You cannot ignore the appearance of error 0300. In the future, this may lead to deterioration in the performance of other nodes.

It is not difficult to master car diagnostics, in particular the VAZ 2110. It will extend the service life due to timely detection of faults detected by phase sensors.

Diagnostics using additional tools

To diagnose cars, including the VAZ 2110, various equipment is used, which is connected to a special connector. Thanks to this equipment, which is not particularly complicated and has a high price, you can get a complete picture of the condition of the car.

The service station uses a personal computer to which data from phase sensors is transmitted via a special cable.

Adapter for automatic diagnostics

A Bluetooth device has appeared on the market that allows diagnostics to be carried out using a smartphone, tablet or laptop.

They work according to a scheme. The device is connected to the connector, the ignition is turned on and the diagnostic process begins. The data comes from phase sensors on the computer. From there to your mobile device, on which you first need to install specialized software.

This allows you not only to receive more data, but also to present it in a more visual form. This method allows a driver, even with little driving experience (in our case, a VAZ 2110), to obtain all the information about your car.

But most drivers prefer to carry out diagnostics at a service station. To be aware of the data that the on-board computer provides through RAM from the phase sensors, we will present a breakdown of common errors.

Decoding combinations

If there are problems with electrical equipment, they should be corrected immediately. Error code 1602 will indicate that this is not the case.

Sometimes error 1602 may simply be reset and will not appear later. Socialists call such data “good.”

Error 1602 sometimes appears if:

  • The battery is disconnected for a while;
  • There was a voltage surge when starting the engine, for example in cold weather.

But if error code 1602 keeps appearing, you need to check the entire network. Maybe there is a stone. If error code 1602 appears continuously, try removing the battery terminals. Make sure they are safe. Doesn't help, error 1602 still appears? Check the diagram. You need to start with the positive terminal of the battery. Start with the fuse and fuse.

READ VAZ 2110 Starts Poorly Injector 8 Valves

Check the computer's weight, DPS. Sometimes error code 1602 is caused by an alarm that can block the controller circuit and affect the readings of the phase sensors. In this situation, you need to file a complaint with the company that installed the alarm.

Error 0102 indicates a low signal level reported by the mass air flow phase sensor.

Code 0102 will be stored in RAM in the following situations:

  • Low air consumption, which depends on the crankshaft rotation speed;
  • How open is the throttle;
  • Several cycles have passed since the error occurred.

If the error occurs intermittently, you need to:

  • Check the condition of the air barrier;
  • Mount the mounting blocks using the computer;
  • Check IAC;
  • Clean throttle.

Another error that may occur. 0300. 0300 appears when RAM detects frequent errors.

If error code 0300 is constantly displayed, you need to check the following components:

  • Spark plug;
  • Nozzles;
  • Ignition system;
  • Increasing or decreasing compression may result in code 0300;
  • Code 0300 can also appear if there is a wiring fault.

Error 0300 cannot be ignored. In the future, this may lead to deterioration in the performance of other nodes.

It is not difficult to master car diagnostics, in particular, the VAZ 2110. This will extend the service life due to the timely detection of faults that are detected by phase sensors.

Source

Meaning and decoding of codes

Self-diagnosis codes

Video “Self-diagnosis of VAZ 2115”

Comments and reviews

The engine error light came on: what to do and how to erase it

An error in engine operation causes the check engine warning light to light up on the dashboard. The indicator will remain on until the normal operation of the failed or malfunctioning element is restored. On some cars, after the operation is restored, the “check” stops lighting by itself; in addition, a so-called “reboot” of the controller may be required, which we will consider below, as well as a software reset of errors in the ECU.

Note that in some cases, even after eliminating the cause and attempting to reset, the “check” still continues to light. Often such errors are critical. In other words, it is impossible to remove such an engine error using simple methods. The fact is that a critical error is recorded in the memory of the electronic control unit and is not erased on its own. In this article we will talk about how engine errors are diagnosed, as well as how to reset the engine error yourself.

Read in this article

How to clear an engine error

Let's start with the fact that engine errors can occur for various reasons, since the control system includes a large number of sensors and controls the operation of individual components, systems and mechanisms. It should also be taken into account that different vehicles may differ in terms of the complexity of a particular system. On some cars, the “check” lights up, for example, only in the event of serious or critical errors (malfunctions in the operation of the air flow control valve, engine detonation error when the knock sensor is faulty, etc.).

How to check engine errors and erase the error in the ECU memory

To carry out engine diagnostics and read error codes, as well as to reset them, many drivers prefer to go to a service station where there is a scanner. Service station specialists, at the owner’s request, can issue a printout that will display the error codes recorded in the control unit’s memory. Note that this procedure is optimal in the case when the check is constantly on. If the error is “floating” (the check periodically lights up and goes out), then a visit to the service may not yield anything.

In such a situation, you can buy a scanner for personal use, but its cost and the need to study the features of the software make this method impractical, especially when it comes to diagnosing only one car. Let us add that the scanner is used in parallel with a laptop or personal computer, which creates additional inconvenience.

All kinds of third-party BCs (on-board computers) also rightly belong to similar ones in terms of ease of use, cost and feasibility of purchase. The solution is capable of reading and deciphering error codes and displaying additional information about the parameters and operating modes of the internal combustion engine. At the same time, the BCs require proper connection and separate installation in the cabin.

Among the main advantages of such adapters is that the device is a small, compact “box” that is inserted into the diagnostic socket of your car. This means that the need to connect, lay wires, place the device itself in the cabin, use a PC and perform other additional actions is completely absent.

The adapter in the connector remains almost invisible and connects to a tablet or smartphone “over the air” thanks to bluetooth/wi-fi technology. This is especially convenient when the engine error lights up periodically. In other words, you can drive with the adapter in the connector as long as you like, and at the moment the check light comes on, immediately read the fault code. You only need to secure your smartphone or tablet to a stand or holder to be able to monitor the readings on the screen while driving.

As for the software, it may be supplied with the adapter. The necessary programs are also available in the Play Market for Android and similar solutions for devices on other operating systems. The software must be installed on a smartphone/tablet. Note that among the various available solutions, the Torque program is very popular (a free version of this application is available in the Market for Android). The program allows you to flexibly customize the interface, has the ability to not only read, but also decipher errors, and has the ability to reset engine errors.

Using the solution looks like this:

  • The adapter is inserted into the vehicle's diagnostic connector;
  • A smartphone/tablet with installed software is installed in the holder;
  • Next, the car starts;
  • Bluetooth is turned on on your smartphone or tablet;
  • A program (for example, Torque) is launched on the phone/tablet;

Now you need to wait for the adapter and device to synchronize with the program, after which the parameters of the operating power unit are displayed. To determine why the check is on, you need to go to the appropriate subsection on your mobile device. Error codes will be displayed there, and it is also possible to provide options for decoding them. At the same time, it is possible to collect individual errors or all of them at once, as a result of which the check engine light goes out.

What's the result?

Ease of use and accessibility allow adapters for the diagnostic connector to significantly simplify the procedure for checking a car, reading and decoding ECU errors. It is also worth noting that the error can be quickly reset without having to disconnect the battery terminals, erase a critical error, etc.

Finally, we would like to add that among the commercially available adapters, there are devices that may not read errors recorded in the ABS unit and Airbag airbag modules. In other words, information on these items may not be available. For this reason, before purchasing an adapter, it is necessary to separately clarify the possibility of reading errors from the memory of the above and other ECM modules by one or another device.

Why does the check light light up on the dashboard? Is it possible to continue driving a car if the check engine light is on? What should you check first?

The main signs by which you can determine problems with the DPKV crankshaft position sensor. Causes of failures, breakdowns, self-check.

For what reasons may misfire of the fuel-air mixture occur in one or more cylinders? Fault diagnosis, recommendations.

Instrument diagnostics

The twelfth model uses the January-4

" This device constantly diagnoses the condition of the vehicle. All detected faults are stored in the controller’s memory and remain there until they are erased. The source of the problem can be determined by the two-digit code. Codes from 12 to 61 inclusive are used here.

For timely detection of errors and diagnostics, there is a “CHECK ENGINE” light on the dashboard; in common parlance it is referred to as a “check”. This lamp is connected to a microcontroller. And when a malfunction occurs, it lights up. Signaling the need for an urgent check of all engine systems.

When the ignition is turned on, the light comes on and all engine systems are checked. If there are no breakdowns, the “check” goes out when the engine is started. If the malfunction is intermittent, then “CHECK ENGINE” will light up and go out. Please note that intermittent problem codes are also stored in memory and may interfere with diagnostics or, conversely, provide clues about the true cause of the failure.

To read error codes, you will have to use the connector located at the bottom left of the dashboard. Diagnostics can be carried out in two ways:

  • Diagnostic scanner (let’s just say EML 327 is not suitable);
  • Counting the "check" flashes.

To check for errors using a lamp, connect output “B” of the diagnostic block to the “minus” of the machine. The easiest way to do this is to connect this output to output “A”, which is “ground”. After this, the key is turned to the “ignition” position. You need to carefully monitor the behavior of “CHECK ENGINE”. To begin with, the light will display the diagnostic system operating code. It will look like a flash, pause, flash, flash. This means - 12. This code is repeated three times. After it, the system issues fault codes.

It's easy to decipher them

. The first part of the flashes means dozens, then there is a pause and another one to nine flashes occur. This is what makes up the fault code. If there is no code “12” the problem is in the controller itself. All codes will be displayed 3 times.

You cannot disconnect contacts immediately after completing the diagnostics. This may damage the diagnostic device. First the ignition is turned off. Only after 10 seconds should the contacts be opened.

It is much easier to diagnose using a scanner. If it is not available, you can use a laptop. Just download the test program and get a USB adapter (K-Line adapter). The majority of programs evaluate a large number of parameters in addition to errors. You can view and evaluate all the main indicators of the motor. This option will be the most optimal.

Reset errors

. The controller remembers errors and will show them even after the fault has been eliminated. Therefore they need to be reset. This is the only way to ensure that the problem is corrected correctly. To reset, turn off the power to the device for 15 seconds. To do this, simply remove the negative terminal from the battery. Do not perform this action with the ignition on. This may damage the controller.

Conclusion

. Any car owner wants to control its condition. Constantly going to the service center to check is quite expensive. Therefore, diagnosing the VAZ 2112 16 valves yourself is the most optimal solution. The great thing is that you can do it at any convenient time.

Using the Scanner

Using a scan tool is the easiest way to reset your check engine light. Here are 5 simple steps:

  • Connect the scan tool to the OBD connector under the steering column. A laptop or tablet with the appropriate software is installed in the holder;
  • Then turn on the car’s ignition and turn on all the gadgets accordingly;
  • On your mobile device, in the appropriate section, press the “READ” button to view engine error codes. We write down the codes with a pen in the order in which they were received. This will be necessary for subsequent repairs.

  • We delete the error code. Press the “ERASE” button on the scanner. The Check Engine light will turn off when all error codes are cleared. Some scanning tools have many options, such as freeze frame, which captures the sensor readings. When deleting codes, these readings will also be deleted. Note: in some scanners, the option to clear codes may be automatic and the “CLEAR” or “YES” button instead of the “ERASE” button.
  • Be sure to turn the ignition on before clearing codes.

Battery disconnect method

Disconnecting the battery is an old way to reset the check engine light. Here are three steps to clear the check using this method: Step 1: Disconnect the cables from the battery. At this point, you should use a wrench to unscrew the positive and negative cables.

Step 2: Discharge the remaining electricity. The next thing you should do is press and hold the car horn for about 30 seconds. This action will help drain the car battery.

Step 3: Wait and reconnect the battery. After disconnecting the battery cables and draining the remaining electricity, all you have to do is wait about 15 minutes and then plug the battery back in. Error codes will be cleared. (Note: This method may not work on some vehicles.) If after this procedure the “check” lights up again, this may mean that the problem is still much more serious.

Allow the check engine light to go off on its own.

Wait until the “check” goes out on its own. The simplest method because you don't have to do anything. The computer system in most vehicles will automatically recheck for problems that may activate the error light. If it is a minor problem, it will automatically correct itself and the check will go off. However, if the check light is still on after three days, you need to apply the methods mentioned above to reset it.

If this continues to happen despite the following reset procedures, you should take your vehicle to your nearest auto repair shop and have it diagnosed by a professional mechanic. Professional diagnostics use more sophisticated tools and can identify precise problems.

REMEMBER: You can always contact our car service center, where your car will be happy to receive professional technical assistance. You can also make an appointment with us for a scheduled technical inspection! Please familiarize yourself with our car repair and diagnostic services.

Self-diagnosis and decoding of error codes on the VAZ 2115

Many domestic cars are equipped with on-board computers, which greatly facilitate the search and identification of faults using a code. The possibility of diagnostics and self-diagnosis on the VAZ 2115 appeared with the beginning of the installation of an 8-valve injection engine.

Meaning and decoding of codes

Self-diagnosis codes

Video “Self-diagnosis of VAZ 2115”

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How to fix the problem

To resolve the error, do the following:

  1. Check the sensor for functionality. If it breaks, you simply need to replace it.
  2. Make sure there is no plaque on the contact. If it is there, you need to clean it.
  3. Check the operation of the on-board circuit and make sure that it has contact.
  4. A random error can only be corrected by flashing the on-board computer, but to do this you need to go to the nearest service station.

Car diagnostics

The appearance of a lit “Check Engine” lamp on the instrument cluster signals the driver that a problem has arisen in the vehicle’s electrical system. You need to understand that checking the vehicle yourself and at a service station can give different results. Special equipment available to professionals will allow more accurate detection of faults.

Self-diagnosis

On a VAZ 2115, the owner can do independent diagnostics and find out what errors are stored in the memory of the engine control unit. The procedure is carried out by calling up fault codes on the dashboard or using a diagnostic adapter.

To carry out diagnostics on the electronic instrument panel, you must perform a certain sequence of actions:

  1. Sit in the driver's seat of the car, insert the key into the ignition and press the daily mileage reset button located on the instrument cluster.
  2. Turn the lock key to the ignition switch position.
  3. Release the key, starting the self-diagnosis process. Visually, this will look like turning on the backlight, all signal lamps, possible symbols on the LCD screens and testing the instruments (the arrows will move across the entire scale in both directions).
  4. Press the key again and release. The second press displays the software version of the instrument cluster on the screen located under the speedometer (inscription like Uer x. x).
  5. Press the key again, after which the errors in the memory will be displayed on the screen.

Instrument cluster VAZ 2115, the button is located on the right side of the speedometer

The driver can perform self-diagnosis on the electromechanical panel and the “January-4” control unit according to the following sequence:

  1. Turn off the ignition.
  2. Open the diagnostic connector cover located on the center console.
  3. Connect contact B to the negative terminal of the battery (to the body). Contact A, connected to the engine crankcase, is suitable for this.
  4. Turn on the ignition. The “Check Engine” lamp will flash code 12, which means the diagnosis has begun. The light signals are given as follows - a long flash, then a pause (about 2 seconds), two short flashes, a long pause (about 3 seconds). Signal 12 is sent three times. If there is no signal, the diagnostic system is inactive or faulty. After this, the Check Engine light will flash and list the errors in memory. Each code is repeated three times. If there are no errors in the memory, code 12 will continue to be transmitted.

Video: How to reset a receipt for a VAZ 2110

On January 4, the driver can perform self-diagnosis on the electromechanical panel and control unit in the following sequence:

  1. Turn off the ignition.
  2. Open the diagnostic connector cover located on the center console.
  3. Connect terminal B to the negative terminal of the battery (along with the case). Contact The connected crankcase is suitable for this purpose.
  4. Turn on the ignition. The Check Engine light flashes with code 12, which indicates the start of the diagnosis. Light signals: long flash, then a pause (about 2 seconds), two short flashes, a long pause (about 3 seconds). Signal 12 is given three times. If there is no signal, the diagnostic system is inactive or faulty. After this, the Check Engine light will light up with a list of errors in memory. Each code is repeated three times. If there are no errors in memory, code 12 will continue to be transmitted.

READ How to connect fog lights VAZ 2110

To read controller errors, a special K-Line adapter is used, which is connected to the diagnostic connector via a connector. This connector is located on the center console behind a plastic plug (under the cigarette lighter and ashtray). The adapter has a cord with a USB connector at the end that connects to any laptop. The device must have a special program for reading and resetting errors (OpenDiagFree version 1.4 or 1.6).

The procedure for reading errors is quite simple, you need to:

  1. Check the fluid level.
  2. Open the connector cover and turn on the ignition.
  3. Connect the adapter or scanner to the diagnostic connector.
  4. Launch the software on the laptop.
  5. Review existing errors in the program's dialog box.
  6. Decipher the codes using the software interface or decryption table.
  7. Eliminate the causes of malfunctions and make a diagnosis.

Meaning and decoding of codes

During self-diagnosis of a VAZ 2115 with an injector, only numbers or flashes that code the error will be shown on the instrument panel. When reading trouble codes from an electromechanical instrument cluster, it is necessary to record the number of flashes and calculate error numbers from them. Their purposes can be deciphered using a special list. Most of these faults can be resolved independently by replacing failed sensors.

Self-diagnosis codes

When performing diagnostics, it is necessary to take into account that the number on the screen may indicate two summed errors. For example, 9 indicates the presence of two faults - numbered 1 and 8.

Numeric combinationDecoding
1ECU problem
2Incorrect data from the fuel level sensor
4 or 8Network power problems
12Malfunction of the error lamp circuit in the instrument cluster
13No signal from lambda probe
14 or 15Incorrect data from temperature sensor
16 or 17Problems with the network power supply, it is necessary to check for short circuits
19Motor shaft position sensor error
21 or 22Throttle sensor error
23 or 25Incorrect operation of the intake air temperature sensor
24Speed ​​sensor faulty
27 or 28No signal from lambda probe
33 or 34No air flow data available
35Idle speed control sensor is faulty
42Ignition control circuit problem
43Knock sensor failure
44 or 45Violation of the composition of the mixture
51 or 52ECU memory errors
53Error in CO setting sensor (installed on cars without converter)
54Octane corrector sensor (installed on cars without a converter)
55Violation of the composition of the mixture
61Failure of the lambda probe

An example of error 14 appearing on the panel

Table of decoding codes for flashes calculated during diagnostics.

Error codeFlash combinationDecoding
12Long-pause-two shortDiagnostic circuit malfunction
14Long-pause-four shortEngine temperature sensor malfunction
15Long-pause-five shortLikewise
16Long-pause-six shortAbnormally high mains voltage
17Long-pause-seven shortAbnormally low mains voltage
19Long-pause-nine shortCrankshaft position sensor failure
21Two long, pause, one shortIncorrect data from the throttle position sensor
22Two long, pause, two shortLikewise
24Two long, pause, four shortProblem with the speed sensor
27Two long, pause, seven shortLambda probe failure
28Two long, pause, eight shortLikewise
33Three long, pause, three shortAir flow meter needs to be checked
34Three long, pause, four shortLikewise
35Three long, pause, five shortIdle speed outside the tolerance range
43Four long, pause, three shortNo signal from knock sensor
51Five long, pause, one shortMemory error in block
52Five long, pause, two shortError in controller
53Five long, pause, three shortMemory error in block
61Six long-pause-one shortNo signal from the immobilizer

The data obtained allows you to quickly find the faulty element and eliminate the cause of the error.

The video from the Garage channel shows diagnostics on a VAZ 2115 using a scanner and laptop.

Controller errors

The most common controller errors encountered during diagnostics are listed in the table.

Program error numberDecoding
R 0030-0038, 0141Malfunction of the lambda probe heating system
R 0102 and 0103Incorrect signal from the air supply sensor
R 0112 and 0113Error in data from intake air temperature sensor
R 0115-0118 and 0217Problems detecting engine temperature or overheating
R 2122 and 2123, 0222 and 0223, and 2138Incorrect signal from the gas pedal and throttle position sensor
R 0171-0172Incorrect mixture parameters
R 0201-0204Faulty injectors (each cylinder has its own code)
R 0261-0272Problems with injector control
R 0130-0134Problems with the functioning of the lambda probe before the converter
R 0136-0140Problems with the functioning of the lambda probe after the converter
R 0300Multiple misfires
R 0301-0304Cylinder misfires
R 0326-0328Knock sensor failure
R 0351-0352, 2301 and 2304Monitoring the operation of ignition coils
R 0422Failure of the neutralizer
R 0691-0692 and 0693-0694Failure of the first and second cooling fan start relays
R 0560-0563Problems with power supply
R 0627-0629Indicates incorrect operation of the fuel pump control circuit
R 1602Malfunction in the engine parameters control controller

Reset errors

After self-diagnosis, finding out the cause of the problem and correcting the breakdown, the errors can be reset.

To do this, go to the error viewing menu, press the odometer reset key and wait a few seconds. The number 0 will light up on the screen - the error has been reset. In this case, data about problems is stored in the unit’s memory and must be deleted. If left, the “Check Engine” light will light up in the instrument cluster. In addition, self-diagnosis may not read all electrical system errors; the error removal procedure will show whether a more detailed analysis of the vehicle’s electronics is needed.

To reset the error, do the following:

  1. Turn on the ignition.
  2. Open the hood and remove the negative terminal from the battery. Wait about a minute, connect the wire back and close the hood.
  3. Turn off the ignition.
  4. Turn on the ignition again and start the engine. The Check Engine light may come on briefly and then go off.

If the symbol remains illuminated, there is an ongoing problem with some sensor or wiring in the vehicle. It can only be found out using a special scanner. It is necessary to conduct additional diagnostics to determine the problem node. Then carry out repairs and clear any existing errors using a computer diagnostic program for the ECU.

Resetting errors on cars with an electromechanical instrument cluster is carried out by disconnecting the negative terminal of the battery from the on-board network for 10 seconds. The ignition must be turned off.

Forum → VAZ → 2112 → Electrics

The controller continuously performs self-diagnosis on certain control functions.
The language of the VAZ 2110, - 2111, - 2112 controller is used to indicate the source of the malfunction using diagnostic codes. Codes are two-digit numbers ranging from 12 to 61. For different controllers, fault codes may differ slightly from each other. In table 9-3 shows a breakdown of the fault codes for the “errors” of the “January-4” type controller installed on VAZ 2110, VAZ 2111 or VAZ 2112 vehicles, for a distributed fuel injection system without feedback and with domestic components. When a malfunction is detected by the controller, the code is stored in memory and the “CHECK ENGINE” indicator light turns on. This does not mean that the engine should be stopped immediately, but the reason for the CHECK ENGINE warning light should be discovered as soon as possible. Table 9-3 Fault codes for the “January-4” type controller

Code Malfunction
Indicator lamp diagnostic circuit fault
High signal level of the coolant temperature sensor
Coolant temperature sensor signal low
Increased voltage of the on-board network
Reduced voltage on-board network
Incorrect crankshaft position sensor signal
Throttle position sensor signal voltage too high
Insufficient throttle position sensor signal voltage
There is no signal from the vehicle speed sensor
High signal level of the CO potentiometer
Low signal level of the CO potentiometer
Incorrect signal from the mass air flow sensor (high frequency signal at the sensor output)
Incorrect signal from the mass air flow sensor (low signal frequency at the sensor output)
Idle speed deviation
Invalid knock sensor signal
Programmable read only memory (PROM) error
Controller error (RAM error)
Electrically programmable memory (EPROM) error
Immobilizer communication error

CHECK ENGINE lamp

The lamp is located in the instrument panel combination of VAZ 2110, VAZ 2111, VAZ 2112 cars and performs the following functions: informs the driver that there is a malfunction in the engine control system and the car needs to be checked as quickly as possible; issues diagnostic codes stored in the controller's memory to help a technician find a malfunction. When the ignition is turned on, the “CHECK ENGINE” lamp lights up and, while the engine is not yet running, the lamp and systems are checked for serviceability. After starting the engine, the “CHECK ENGINE” lamp should go out. If the lamp continues to light, then the self-diagnosis system has detected a malfunction. If the fault disappears, the lamp usually goes out after 10 seconds, but the fault code will be stored in the controller’s memory. In the case of an “intermittent” malfunction, the “CHECK ENGINE” lamp will light for about 10 seconds and then go out. However, the corresponding fault code will be stored in the memory of the controller installed on VAZ 2110, VAZ 2111, VAZ 2112 cars until its power is turned off. When unexpected codes are detected during the reading of error codes, it can be assumed that these error codes are caused by an intermittent malfunction and can help in diagnosing the system.

Reading error codes on VAZ 2110, VAZ 2111, VAZ 2112 cars

A diagnostic block is used to communicate with the controller. It is located under the instrument panel console on the left side. Fault codes stored in the controller's memory can be read either with a special diagnostic tool or by counting the number of flashes of the "CHECK ENGINE" lamp. To read error codes using the “CHECK ENGINE” lamp, you must connect contact “B” (Fig. 9-31) of the diagnostic block to ground. The easiest way is to short it to ground by connecting it to contact “A”, which is connected to the engine ground. When contacts “A” and “B” are connected to each other, the key in the ignition switch must be turned to position III (Ignition), but the engine should not run. Under these conditions, the “CHECK ENGINE” lamp should flash code 12 three times in a row. This should happen in this order: flash, pause (1-2 sec), flash, flash - long pause (2-3 sec), and so on. twice (Fig. 9-32). Code 12 indicates that the controller diagnostic system is working. If code 12 is not displayed, then there is a problem with the diagnostic system itself. After code 12 is displayed, the CHECK ENGINE lamp flashes fault codes three times, if they exist, or simply continues to display code 12 if there are no fault codes. If more than one fault code is stored in the controller’s memory, they are displayed 3 times each. Attention! Upon completion of the diagnostics, it is allowed to open contacts “A” and “B” of the diagnostic block 10 seconds after turning off the ignition.

Erasing codes

Codes are erased from the controller’s memory either after repairs are completed or to see if the malfunction occurs again. To erase, you must turn off the controller's power for at least 10 seconds. Power can be turned off either by disconnecting the wire from the negative terminal of the battery, or by removing the controller protection fuse from the fuse box. WARNING To avoid damaging the controller, turn its power off and on only with the ignition off.

rice. 9-31 Diagnostic block for VAZ 2110, VAZ 2111, VAZ 2112 A - contact connected to ground; B - diagnostic contact for sending a signal to the controller; G — fuel pump control contact; M - information output contact (serial data channel)


rice. 9-32 Issuing code 12 by the control lamp (CHECK ENGINE)

The VAZ-2114 is based on mechanics, so for many drivers it comes as a real surprise that the car has self-diagnosis. This allows you to avoid checking the operation of the machine at a service station using expensive equipment; the fault can be determined with your own hands at any convenient time, and then quickly eliminated.

Diagnostics of the VAZ-2114 involves displaying an error code on the on-board screen, which indicates a specific breakdown. Error 8, displayed on the panel, stands for insufficient voltage in the machine network. We will tell you how to fix the problem, but first we will teach you how to enable self-diagnosis of the VAZ-2114.

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