Since the Volga Automobile Plant stopped producing carburetor engines and switched to an electronic fuel injection system, the VAZ ECU (electronic control unit) has become one of the most important parts. It has a factory internal combustion engine control program, which is connected to all sensors, fuel injection control systems, speed and other important parameters. The need to buy a new ECU for Lada arises due to the failure of the controller, software failures, or if you want to tune the engine.
If you need the original "brains" of the VAZ, please contact us. The Timeturbo online store catalog contains a wide range of ECUs for the entire model range of brand cars equipped with blocks. We offer only certified controllers on favorable terms. You can choose blocks E-Gas, "January" and Bosch, which were installed on cars at different times. With the correct configuration of the VAZ controller, you can change the original factory settings for the engine, improve the performance of the engine and fully unlock its potential.
The original and precisely calibrated block allows:
- significantly reduce fuel consumption (on average by 3-8%);
- increase the dynamics of acceleration of the internal combustion engine (by 7-12%);
- increase traction and speed parameters;
- reduce the time required for acceleration;
- facilitate the movement of a fully loaded machine.
You will completely get rid of errors associated with incorrect operation of the unit - jerks, uncontrolled “jumps” in idle speed, increased fuel consumption and many others.
We sell original "brains" for Lada on favorable terms. We cooperate with manufacturers and official dealers directly, due to which we set low prices for the entire range of equipment. We guarantee high quality and reliability of devices.
To order a controller for Lada or related spare parts, make a purchase on the website or call our managers.
A modern car is partly a computer on wheels, or, to be more precise, a computer that controls the movement of the wheels. Most of the mechanical parts of the car have long been superseded, and if they remain, they are completely and completely controlled by the “electronic brain”. Of course, it is much easier to drive a computerized car, and the designers of such cars think about the safety in the first place.
However, no matter how perfect the design of electronic control units (ECUs) is, they can still fail. This situation is not the most pleasant, and due to the complexity of the device, it is not necessary to talk about self-repair (although there are such craftsmen). In today's article, we will talk about what malfunctions can happen to an ECU, how they can be caused, and how to diagnose them correctly.
1. Causes of ECU failure: what should you be prepared for?
First of all, the electronic control unit of a car, or simply, is a very complex and important computer equipment. In the event of a malfunction of this device, incorrect operation of all other automotive systems may occur. In some cases, the car may stop working altogether, including the failure of the transmission, chargers and control sensors.
Electronic units are different and can control different devices. At the same time, all systems still actively interact with each other and transmit important information for adjusting all functions. The most basic of them is the car engine ECU. Despite its structural simplicity, it performs a lot of complex tasks:
1. Control of fuel injection into the combustion chamber of a car.
2. Throttle valve adjustment (both while driving and while the engine is idling).
3. Management of the ignition system.
4. Exhaust gas composition control.
5. Valve timing control.
6. Coolant temperature control.
If we talk specifically about the engine ECU, then all the data received by it can also be taken into account when the anti-lock brake system is working, and when the passive safety system is working, and in the anti-theft system.
The reasons for the failure of the ECU can be very diverse. In any case, this does not bode well for the car owner, since this device cannot be repaired. Even at service stations, they simply change it to a new one. But be that as it may, it is necessary to understand in great detail what can cause a breakdown. Thanks to this knowledge, you will be able to ensure the maximum possible protection of the device from such troubles in the future.
According to auto electricians, most often the computer fails due to overvoltage in the electrical network of the car. The latter, in turn, may occur due to a short circuit in one of the solenoids. However, this is not the only possible reason:
1. Damage to the device can occur due to any mechanical impact. This can be an accidental impact or very strong vibrations that can cause microcracks in the computer boards and the soldering points of the main contacts.
2. Overheating of the unit, which most often occurs due to a sharp temperature drop. For example, when you are trying to start the car at high speeds in severe frost, squeezing the maximum out of the capabilities of the car and all its systems.
3. Corrosion, which can occur due to changes in air humidity, as well as due to water ingress into the engine compartment of the car.
4. Moisture ingress directly into the control unit itself due to depressurization of the device.
5. The intervention of outsiders in the device of electronic systems, as a result of which a violation of their integrity could occur.
If you wanted to “light up” the car without first turning off the engine.
If the terminals were removed from the car battery without first turning off the engine.
If the terminals were reversed when connecting the battery.
If the starter was turned on, but no power bus was connected to it.
However, whatever may have caused the malfunction of the computer, any repair work can only be carried out after a full professional diagnosis has been carried out. On the whole, The nature of the device malfunction will tell you about malfunctions in other systems. After all, if they are also not eliminated, then the new control unit will burn out in the same way as the old one. That is why in the event of a computer burnout, it is very important to establish the true cause of the breakdown and immediately eliminate it.
But how to determine that the control unit really failed, and not some other system? This can be understood by a number of the very first signs that may appear in such a situation:
1. The presence of obvious physical damage. For example, burnt contacts or conductors.
2. Inoperative signals for controlling the ignition system or fuel pump, idle mechanism and other mechanisms that are under the control of the unit.
3. Lack of indicators from different sensors of control systems.
4. Lack of communication with the diagnostic device.
2. How to check the computer: practical advice for motorists who do not want to go to the service station.
Fortunately, even if you have neither the money nor the desire to go to the service station, and the ECU does not want to give any signs of life, there is a sure way to determine what is the cause of the breakdown. Perhaps this is due to the presence of a built-in self-diagnosis system on each vehicle control unit. It allows you to determine the possible cause of a breakdown without the use of special diagnostic equipment.
But let's make a small digression and talk about some features of the car engine control unit. This electronic device is a mini-computer capable of performing tasks assigned to it in real time. At the same time, all specialized tasks can be divided into three categories:
1. Processing and analysis of signals that come to the unit from all sensors.
2. Calculation of the necessary impact, which is necessary to control all vehicle systems.
3. Control over the operation of actuators, that is, those that receive a signal from the control unit.
However, in order to be able to check the status of the engine control unit, first of all, it is necessary to perform a series of manipulations in order to connect to it. To do this, you will need either a special tester, which, for obvious reasons, not everyone has, or a laptop with a special program pre-installed on it. What kind of program should this be? It is designed to read diagnostic data from the control unit. You can install it either from the Internet or from a disk purchased at the car market.
However, it is worth considering that different models of control units can be installed on different car models. Based on this, it is necessary to select a diagnostic program for a laptop and, of course, the method of verification itself. We will tell you how to diagnose the model ECU Bosch M7.9.7. This ECU model is quite common both on VAZ cars and on foreign cars.
As for the program for diagnostics, in this case we will use KWP-D. We note right away that, in addition to the program itself for performing diagnostics, you will definitely need a special adapter that can support the KWP2000 protocol. With its connection, the diagnostic process itself begins:
1. We insert one end of the adapter into the port of the electronic control unit, and the other end into the USB port of your laptop.
2. We turn the key in the car ignition and run the diagnostic program on the laptop.
3. Immediately after starting, a message should appear on the laptop display confirming the successful start of the error check in the operation of the electronic control unit.
5.
Pay attention to the section called DTC, since it is in it that all the malfunctions that the engine will issue will be displayed. Errors will appear in the form of special codes, which can be decrypted by going to a special section, which is called “Codes”.
6. If not a single error has appeared in the DTC section, then you can rejoice - the car engine is in perfect condition.
However, it is also not worth ignoring the other sections of the table, since they can also contain very important information that can explain computer malfunctions. Among them:
Section UACC- it displays all the data characterizing the state of the car battery. If everything is in order with this device, then its indicators should be in the region from 14 to 14.5 V. If the indicator obtained as a result of the test is below the specified value, you should carefully check all electrical circuits that depart from the battery.
THR Section- Throttle position parameters will be displayed here. If the vehicle is idling and there is no problem with this item, this section will display a value of 0%. If it is higher, seek help from a specialist.
Section QT is fuel consumption control. Since the car is idling, an indicator should appear in the table that is in the range from 0.6 to 0.0 liters per hour.
LUMS_W section- the state of the crankshaft during rotations. During normal operation, its rate should not exceed 4 revolutions per second. If the number of revolutions is higher, then uneven ignition occurs in the engine cylinders. In addition, the problem may be hiding in high-voltage wires or candles.
3. What is needed to check the ECU, or how do professionals cope with this task?
Without special equipment, it is simply impossible to carry out a full check of the car's engine control unit. But thanks to its presence, the diagnostic process becomes a very simple task. The only problem is to purchase this special equipment, which, in fact, will do all the work for you.
So, what may a driver need to diagnose an electronic control unit? First of all, this oscilloscope. With it, you can get data on the operation of absolutely all vehicle systems. In this case, all received data will be displayed either in graphical or numerical form.
After taking the figures obtained from your car, you will need to compare them with standard indicators. Based on this, you will be able to determine in which system there is a malfunction, and you can fix it. The only disadvantage of the oscilloscope is its cost, which not everyone can afford.
But in addition to the oscilloscope, you can use a special tool to diagnose the state of the control unit. motor tester. Its main function is to determine the indicators that come from all the electronic systems of an automobile engine. For example, it allows you to determine the drop in speed when the cylinders are turned off, as well as the presence of vacuum in the intake manifold. But it costs no less than an oscilloscope.
Since the computer does not fail so often, and it is still better to entrust the troubleshooting of this unit to specialists, the purchase of such expensive devices is not always a rational decision. Moreover, you yourself will not always be able to correctly read the information from their display. Therefore, if any signs of a malfunction of the computer appear, we recommend that you seek help from specialists. After all, with your manipulations, you can do more harm than good to your car.
Modern vehicles are equipped by the manufacturer with a wide variety of systems and mechanisms that are designed to simplify the task of driving a car. It is such a device that is an ECU, or, more simply, an electronic control unit. Today it can be found even on representatives of the domestic auto industry, and if you are interested in how it works and which ECUs are installed on the VAZ, then we recommend that you read this article.
What is an ECU (ECU)
Let's first find out the purpose of the engine ECU and determine what kind of device it is and whether it is needed in the design of modern vehicles.
Automotive electronics regards the concept of "electronic control unit" as a general term for any embedded systems that control one or more electrical systems (or subsystems) of the vehicle.
The ECU directly affects not only the operation of a single sensor, but also the operation of the entire vehicle, which makes it difficult to overestimate its role in a modern car.
Along with the already mentioned term "ECU", the following concepts are often used: "electronic engine control system", "brains", "controller" and "firmware". Therefore, if you hear such names, then you need to understand that we are talking about the main processor of a particular machine. That is, when you hear about the ECM, ECU or "controller", you should understand that this is one and the same.
Where is the control unit located
The electronic control system of the power unit of the machine is fixed under the central dashboard of the car, but in order to gain access to it, it is necessary to unscrew the fasteners of the dashboard side frame with a Phillips screwdriver.
The same place should also be checked in search of an answer to the question “Where is the computer on the VAZ 2114?”, Since on all models of the VAZ group the electronic control unit occupies approximately the same position.
Interesting fact! Individual models of modern vehicles can simultaneously include up to 80 ECUs. Moreover, the firmware of such "computers" continues to evolve, acquiring new and complex forms.
How to determine the type of ECU (controller) on a car
The controller (or electronic engine control unit) throughout its work receives, processes and controls signals from sensors and systems that affect both the operation of the power unit itself and the secondary components of the motor (for example, the exhaust system). However, this does not mean at all that the devices installed on different vehicles are completely identical and do not differ in any way.
In fact, among the types of ECUs (including those used by many "Kalina"), there is an electronic (ECU) / engine control unit (ECM), a transmission control unit, a brake system control unit, a joint motor-transmission unit, a central module control module, central timing module, body controller, main electronic module and suspension control module.
Of course, from a technical point of view, this is not all one computer, but several separate units, but it is worth knowing about their existence. In some cases, the assembly may include several different control modules, but in order to find out exactly which type of controller is installed on your vehicle, you need to dismantle the side frame of the torpedo and remember the number of the ECU installed there. The data obtained is compared with the readings of the corresponding tables, which are easy to find on the network.
Note!Some on-board control systems can show not only the type of computer, but also the firmware number.
The principle of operation of the controller (ECU)
Throughout the entire period of operation of an automobile engine, its “brains” (including those on the VAZ 2108, 2109, 2110, etc.) process all the information that comes to them, transmitted by sensors and automotive systems. In particular, in its work, the ECU controller uses data from the following sensors:
The information received from these sources controls the operation of such sensors and systems: - fuel system and its components: pump, regulator and injectors;
- ignition systems;
- idle speed controller (DXX, IAC);
- radiator fan;
- adsorber;
- self-diagnosis systems.
What ECUs are installed on the VAZ
The first cars of the domestic auto industry are quite ordinary and fully mechanized. However, with the development of technology, and VAZ had to change something.
In particular, over time, the control of the operation of the motor fell on the "shoulders" of the ECM. They were equipped with all injection engines, and with the release of new, more modern models, the presence of an engine control unit (for example, on the VAZ Priore or Kalina) was not even discussed. What evolution did these devices go through? Let's get a look.
GM control units
These systems were installed on the first Samara models produced before 2000. They could be supplemented with a resonant knock sensor or not have it.
BOSCH engine control unit
Among the engine control units of the brand "Bosch", which were installed on cars of the VAZ group, it is worth highlighting:
Control units "January"
As for the electronic engine control units "January", in this case, several of the most famous VAZ components can be distinguished. These include:
"January-4", which, like the GM-09, was installed on the first Samara models until the 2000s.
Note! January 4 hardware implementation is not compatible with January 4.1 as their firmwares are not compatible with each other. January 4 systems use N-series software, while later software is used for January 4.1.
"January 5.1". All types of controllers of this type are built on the same platform, and there are differences only in the switching of injectors and the DC heater. The first version has a phased injection and an oxygen sensor, and the second one is distinguished by parallel injection. The difference between these ECUs is only in the firmware, which means that they can be interchanged.
"January 7.2." - similar to the Bosch model 7.9.7, but made for a different type of wiring (81-pin). It is produced both at the Itelma plant and at Avtel, and can also be replaced by Bosch M7.9.7. As far as installable software is concerned, January 7.2 is a continuation of January 5th.
Did you know? Any electronic control unit has a built-in power source that provides a stable voltage when it changes in the on-board network.
Good afternoon, dear readers of my site about car repair and maintenance! In today's article, I would like to talk with you about the VAZ 2110 ECU with an 8 valve engine!
As part of our today's article, I will answer you questions such as: what kind of computer is on the VAZ 2110, tell you about the signs of its malfunction and how to repair it yourself, and of course I will give you a pinout diagram for the connectors.
What ECUs are installed on the VAZ 2110
In order to determine the type of ECU (electronic control unit) VAZ 2110, you will need to remove the panel from the lower left side of the passenger seat and read the information on the electronic control unit itself.
Earlier, I already talked about who is interested in reading this article! So, similar ones are installed on dozens of electronic control units.
January 4 - specifications on which models of the VAZ 2110 are installed
One of the most common ECUs installed on the VAZ 2110 is January 4.
The January - 4 system includes a fuel tank, el. fuel pump, fuel pump relay, fuel filter, fuel distributor (accumulator), mech. fuel pressure regulator, injectors (one for each engine cylinder), mass air flow sensor (DMRV), throttle position sensor (TPS), feedback potentiometer (CO-potentiometer), knock sensor (DD), coolant temperature sensor ( DTOZH), vehicle speed sensor (DSA), crankshaft position sensor (DPKV), el. control unit, ignition module, battery, ignition lock, “CHECK ENGINE” control lamp, engine cooling fan (VSOD), idle speed controller (IAC) and may include an adsorber, immobilizer, air conditioning
January 4 was installed on the VAZ 2110 model of the first generation in 1999 in a car. Of course, this is not the most advanced ECU on the VAZ, but still it has a number of advantages, which I will discuss later.
Bosch M1.5.4 - advantages and disadvantages of using in the VAZ 2110
The next step was the development, together with Bosch, of an ECM based on the Motronic M1.5.4 system, which could be produced in Russia. Other air flow sensors (FMRS) and resonant detonation (designed and manufactured by Bosch) were used. The software and calibrations for these ECMs were first fully developed at AvtoVAZ.
For Euro-2 toxicity standards, new modifications of the M1.5.4 block appear (has an unofficial index “N”, to create an artificial difference) 2111-1411020-60 and 2112-1411020-40, which meet these standards and incorporate an oxygen sensor, a catalytic neutralizer and adsorber.
Also, for the norms of Russia, an ECM was developed for 8-cl. engine (2111-1411020-70), which is a modification of the very first ECM 2111-1411020. All modifications, except for the very first, use a broadband knock sensor. This block began to be produced in a new design - a lightweight leaky stamped case with an embossed inscription "MOTRONIC" (popularly "tin"). Subsequently, EBU 2112-1411020-40 also began to be produced in this design. The replacement of the construct, in my opinion, is completely unjustified - hermetic blocks were more reliable. New modifications, most likely, have differences in the circuit diagram in the direction of simplification, since the detonation channel in them works less correctly, “tins” “ring” more on the same software.
January-5 - description and technical characteristics of the VAZ 2110 computer
In parallel with the M1.5.4 system, AvtoVAZ, together with ELCAR, designed a functional analogue of the M1.5.4 block, which was named January-5. Initially, options were released for Euro-2 standards (2112-1411020-41), which included an oxygen sensor, a catalytic converter and an adsorber. Later, mass production and installation of systems based on control units began:
- “January-5.1.2” for 16 (2112-1411020-71).
- “January-5.1.1” for 8 (2111-1411020-71) valve engines.
All these blocks have software and calibrations developed by AvtoVAZ OJSC. For cars with a classic layout, the modification January 5.1.3 2104-1411020-01 is used in the Euro-2 configuration, without a knock sensor.
It differs from version 5.1 only in non-soldered elements of the detonation channel. In December 2005, the Avtel Research and Production Enterprise released into spare parts (it was never delivered to the VAZ conveyor !!!) the January 5.1.x ECU with modified hardware.
Bosch MP 7.0 became the next generation of ECU for VAZ dozens. In this modification, both the hardware and software were developed by Bosch, the final calibration and fine-tuning of the systems was performed by AvtoVAZ OJSC. This family is also expanding and has already been supplemented with systems for Euro-3 standards for 8- and 16-valve engines of front-wheel drive vehicles, as well as for all-wheel drive vehicles VAZ-21214 and VAZ-2123 (Euro-2 and Euro-3 standards).
As a ROM in these blocks, a FLASH chip is used, with a capacity of 256 Kb, of which only 32 Kb contain calibration tables and can be read and rewritten. Rather, you can write down all 256 KB, but only 32 KB can be read. Reading/writing of these blocks (without opening blocks) is supported only by Combiloader from SMS-Software. It is also possible to program the flash with an external programmer through an adapter connected to the ECU bus.
This ECU uses a 16-bit B58590 processor (internal marking by Bosch), a 20-bit bus, and, as a ROM for storing software and calibrations, flash memory 29F200 is used. ECUs of different modifications differ in hardware. The ECU under E3 (-50) standards has an additional driver for the heater of the 2nd oxygen sensor. Differences in the DTV channel are also possible. A beautiful paper sticker (there is also such a thing), on top of the nameplate - most likely the brainchild of the OPP, such blocks were installed on some Niva and Nadezhda, altered to OPP from ordinary Niva ones. This type of ECU supports non-disabled driver diagnostics. Therefore, when installing HBO on them, it is strictly necessary to use a continuous disconnection of nozzles.
Pinout of the VAZ 2110 ECU connectors January 5.1 and Bosch M1.5.4
Many different ECUs were serially installed on VAZ cars. Here are some of them:
- "January 5.1.x", "Bosch M1.5.4", "Bosch MP7.0", and "VS 5.1". They had a so-called 55-pin connector.
- “January 7.2(+)”, “Bosch M7.9.7(+)” and “M73” having an 81 pin connector.
The main malfunctions of the VAZ 2110 ECU and how to eliminate them
The most common malfunctions of the ECU (electronic control unit) on VAZ 2110 cars are:
- Lack of control signals for injectors, ignition, fuel pump and idle valve.
- Lack of signals on Lyamba - regulation, temperature sensor and throttle position sensor.
- No communication with the diagnostic tool.
- Mechanical damage to the electronic control unit VAZ 2110
Why the scanner does not connect to the VAZ 2110 ECU and how to fix it
Most diagnostic devices are equipped with a Bluetooth function, with the help of which the device can interact with the system using two protocols out of six. That is, to connect to the ECU, the car owner does not have to use a wire, since a wireless connection can be provided.
Often, car owners are faced with the problem of the inability to connect a device with a control module, why this happens:
- You have purchased a defective adapter. In this case, we are not talking about firmware, but about the inoperability of the hardware stuffing, this is typical for defective devices. If the board is out of order or is initially inoperative, then it will be impossible to check the performance of the motor. Accordingly, how to connect to the control unit.
- Damaged or defective cable preventing the device from communicating. It is necessary to inspect the wire for damage.
- Another reason why the connection may be missing is bad firmware. If the software version is too old, then it will be impossible to synchronize the device with the car.
Common errors of the VAZ 2110 ECU
The check engine light came on or problems were noticed in the operation of the car's systems, then you can find out the cause as quickly as possible using the on-board computer. or high-quality car diagnostics at the service station. The article presents the decoding of error codes.
Error Deciphering the error code VAZ 2110:
0102
Low signal mass air flow sensor
0103
High signal mass air flow sensor
0112
Intake air temperature sensor low
0113
Intake air temperature sensor high
0115
0116
Incorrect signal of the coolant temperature sensor
0117
Low coolant temperature sensor signal
0118
High coolant temperature sensor signal
0122
Throttle position sensor signal low
0123
Throttle position sensor signal high
0130
Incorrect oxygen sensor signal 1
0131
Low oxygen sensor signal 1
0132
High signal crankshaft sensor 1
0133
Slow response oxygen sensor 1
0134
No oxygen sensor signal 1
0135
Oxygen Sensor 1 Heater Malfunction
0136
Short to ground oxygen sensor 2
0137
Low signal oxygen sensor 2
0138
High signal oxygen sensor 2
0140
Open oxygen sensor 2
0141
Oxygen Sensor 2 Heater Malfunction
0171
Too lean mixture
0172
Too rich mixture
0201
Open injector 1 control circuit
0202
Injector 2 control circuit open
0203
Injector 3 control circuit open
0204
Injector 4 control circuit open
0261
Short to ground injector circuit 1
0264
Short to ground injector circuit 2
0267
Short to ground injector circuit 3
0270
Short to ground injector circuit 4
0262
Short circuit to + 12V injector 1 circuit
0265
Short to +12V injector 2 circuit
0268
Short circuit to + 12V injector 3 circuit
0271
Short circuit to + 12V injector 4 circuit
0300
Lots of misfires
0301
Misfires in 1 cylinder
0302
Misfires in cylinder 2
0303
Misfire in cylinder 3
0304
Misfires in 4 cylinders
0325
Open circuit knock sensor
0327
Knock sensor signal low
0328
High knock sensor signal
0335
Incorrect crankshaft position sensor signal
0336
Crankshaft Position Sensor Signal Error
0340
Phase sensor error
0342
Low phase sensor signal
0343
High phase sensor signal
0422
Poor converter efficiency
0443
Canister Purge Valve Circuit Malfunction
0444
Short or open canister purge valve
0445
Short to ground of the adsorber purge valve
0480
Cooling Fan 1 Circuit Malfunction
0500
0501
Wrong speed sensor signal
0503
Speed sensor signal interruption
0505
Idle controller error
0506
Low idle
0507
High idle
0560
Incorrect voltage of the on-board network
0562
Low voltage on-board network
0563
High voltage on-board network
0601
ROM error
0603
External RAM error
0604
Internal RAM error
0607
Detonation channel malfunction
1102
Low Oxygen Sensor Heater Resistance
1115
Faulty oxygen sensor heating circuit
1123
Rich mixture at idle
1124
Lean mixture at idle
1127
Rich mixture at Part Load
1128
Lean at Part Load
1135
Oxygen sensor heater circuit 1 open, short circuit
1136
Rich mixture at light load
1137
Lean at Light Load
1140
Measured load differs from calculation
1171
Low CO potentiometer
1172
CO high level potentiometer
1386
Detonation channel test error
1410
Canister Purge Valve Control Circuit Shorted to +12V
1425
Canister purge valve control circuit short to ground
1426
Canister Purge Valve Control Circuit Open
1500
Open circuit of the fuel pump relay control circuit
1501
Short circuit to ground fuel pump relay control circuit
1502
Short to +12V fuel pump relay control circuit
1509
Idle air control control circuit overload
1513
Idle air control circuit short to ground
1514
Idle speed control circuit short circuit to + 12V, open
1541
Fuel pump relay control circuit open
1570
Invalid APS signal
1600
No communication with APS
1602
Loss of voltage of the on-board network on the computer
1603
eeprom error
1606
Rough road sensor incorrect signal
1616
Rough road sensor low signal
1612
ECU reset error
1617
Rough road sensor high signal
1620
PROM error
1621
RAM error
1622
EEPROM error
1640
EEPROM Test Error
1689
Invalid error codes
0337
Crankshaft position sensor, short to ground
0338
Crankshaft position sensor, open circuit
0441
Air flow through the valve is incorrect
0481
Cooling Fan 2 Circuit Malfunction
0615
Starter relay circuit open
0616
Starter relay circuit short to ground
0617
Starter relay circuit short to +12V
1141
Malfunction of the oxygen sensor heater 1 after the converter
230
Fuel pump relay circuit malfunction
263
Injector 1 Driver Malfunction
266
Injector 2 Driver Malfunction
269
Injector Driver 3 Malfunction
272
Nozzle Driver 4 Malfunction
650
CheckEngine Lamp Circuit Malfunction
Why ELM 327 does not connect to the VAZ 2110 ECU
So why can't the ELM327 see the ECU? What should I do so that the device can connect and see the block? Today on sale you can find many different adapters for testing a vehicle. If you are buying ELM327 Bluetooth, most likely you are trying to connect low quality devices. Or rather, you could have purchased an adapter with an outdated version of the software.
ELM327 Bluetooth devices with legacy firmware use a different Bluetooth module that allows you to communicate with two of the six protocols available. Accordingly, it is possible to synchronize the device with a smartphone, but when you try to connect the device to the control unit, it will inform you that there is no connection with the computer.
So, for what reasons the device refuses to connect to the unit:
- The adapter itself is of poor quality.
- Problems can be both with the firmware of the device and with its hardware. If the main microcircuit is inoperative, it will be impossible to diagnose the operation of the engine, as well as connect to the computer.
- Bad connection cable. It is possible that the cable is broken or is inoperative by itself. The wrong software version is installed on the device, as a result of which it will not be possible to achieve synchronization (the author of the video about testing the device is Rus Radarov)
In the event that you are the owner of a device with the correct firmware version 1.5, where all six of the six protocols are present, but the adapter does not connect to the computer, there is a way out. You can connect to the unit using initialization strings that allow the device to adapt to the commands of the machine's motor control unit. In particular, we are talking about initialization strings for HobDrive and Torque diagnostic utilities for vehicles that use non-standard connection protocols.
Video: ELM 327 does not connect to the VAZ ECU
How to flash a VAZ 2110 ECU with your own hands
In order to flash the VAZ 2110 ECU, you will need to follow the following procedure:
- Download and purchase: K-line Adapter (for example, MasterKit or Romocable, any other) Battery, or PSU (12V), Program (in my case winfe_1.13) Author's (or stock) firmware. in my case i205LR54_v7.3.bin
- Remove the block for convenience of work on the table. PS DO NOT FORGET: Remove the ground terminal from the battery, and only then the connector from the computer
- Connection diagram to the ECU
- 51.53 ECU pin - Ground 71 ECU pin - K-Line (adapter for programming is connected here) 13 ECU pin - Ignition on (+12V) 12 ECU pin - Non-switchable power (+12V) 43 ECU pin - Programming permission (+12V, through a resistor of the order of 4KΩ) 44.63 ECU contact - Power supply of the main relay (+ 12V)
- To connect, you can purchase such a connector
- Now that everything has been prepared, we proceed to the program winfe_1.13 (the program works both from Win XP and from under Win 7) Open the program Select January 7.2 Set the Port (Click and select the one on which the Adapter is) Set the speed to 57600
- Everything is connected, configured, the program is open, turn on the power to pin 13, wait 30 seconds, the message “Communication with the ECU” should appear, if it does not appear, turn off the power for 5-10 seconds and turn it on again. If it does not appear, check the connection!
- As the connection appeared, click on the “ECU Programming” button and select your Decrypted firmware in the “bin” format, it should weigh 64 kb! If it weighs less (or the program does not understand it), then it is necessary to decrypt with the Enigma program
- We go in, click Unpack the firmware, select our encrypted one, Enigma decrypts it! Next, we again select our decrypted firmware and wait for it to be uploaded. We do not touch EEPROM. Turn off, let's go set. After reprogramming the unit, resetting the controller with clearing the self-learning memory (initialization) is MANDATORY!
Greetings dear friends! I decided to devote today's post entirely to the ECU (Electronic Engine Control Unit) of the VAZ 2114 car. After reading the article to the end, you will find out the following: which ECU is on the VAZ 2114 and how to find out its firmware version. I will give step-by-step instructions for its pinout, talk about popular ECU models January 7.2 and Itelma, and also talk about common errors and malfunctions.
The ECU or the VAZ 2114 Electronic Engine Control Unit is a kind of device that can be described as the brain of a car. Through this unit, absolutely everything works in the car - from a small sensor to the engine. And if the device starts to act up, then the machine will simply stand up, because it has no one to command, distribute the work of departments, and so on.
Where is the ECU on the VAZ 2114
In a VAZ 2114 car, the control module is installed under the center console of the car, in particular, in the middle, behind the panel with the radio. To get to the controller, you need to unscrew the latches on the side frame of the console. As for the connection, in the Samar modifications with a one and a half liter engine, the mass of the computer is taken from the body of the power unit, from the fastening of the plugs located to the right of the cylinder head.
In vehicles equipped with 1.6- and 1.5-liter engines with a new type of ECU, the mass is taken from the welded stud. The pin itself is fixed on the metal case of the control panel at the floor tunnel, not far from the ashtray. During production, VAZ engineers, as a rule, fix this pin unreliably, so that over time it can become loose, respectively, this will lead to the inoperability of some devices.
How to find out which ECU is on the VAZ 2114 - January 7.2 January 4 Bosch M1.5.4
To date, there are 8 (eight) generations of the electronic control unit, which differ not only in characteristics, but also in manufacturers. Let's talk about them in a little more detail.
ECU January 7.2 - Specifications
And, so now let's move on to the technical characteristics of the most popular ECU January 7.2
January 7.2 - a functional analogue of the Bosch M7.9.7 block, "parallel" (or alternative, as you like) with M7.9.7, a domestic development of Itelma. January 7.2 looks similar to M7.9.7 - assembled in a similar case and with the same connector, it can be used without any modifications on Bosch M7.9.7 wiring using the same set of sensors and actuators.
The ECU uses the Siemens Infenion C-509 processor (same as the ECU January 5, VS). The block software is a further development of the January 5 software, with improvements and additions (although this is a moot point) - for example, the “anti-jerk” algorithm is implemented, literally “anti-shock” function, designed to ensure smooth starting and gear changes.
The ECU is manufactured by Itelma (хххх-1411020-82 (32), the firmware starts with the letter "I", for example, I203EK34) and Avtel (хххх-1411020-81 (31), the firmware starts with the letter "А", e.g. A203EK34). And the blocks and firmware of these blocks are completely interchangeable.
ECU series 31 (32) and 81 (82) are hardware compatible from top to bottom, that is, firmware for 8-cl. will work in a 16-cl. ECU, but vice versa - no, because in the 8-cl block there are “not enough” ignition keys. By adding 2 keys and 2 resistors, you can "turn" 8-cl. block in 16 cells. Recommended transistors: BTS2140-1B Infineon / IRGS14C40L IRF / ISL9V3040S3S Fairchild Semiconductor / STGB10NB37LZ STM / NGB8202NT4 ON Semiconductor.
ECU January-4 - specifications
The second serial family of ECMs on domestic cars was the January-4 system, which was developed as a functional analogue of GM control units (with the ability to use the same composition of sensors and actuators in production) and was intended to replace them.
Therefore, during the development, the overall and connecting dimensions, as well as the pinout of the connectors, were preserved. Naturally, the ISFI-2S and January-4 blocks are interchangeable, but they completely differ in circuitry and operation algorithms. “January-4” is designed for Russian standards, the oxygen sensor, catalyst and adsorber were excluded from the composition, and a CO adjustment potentiometer was introduced. The family includes control units "January-4" (a very small batch was produced) and "January-4.1" for 8 (2111) and 16 (2112) valve engines.
Versions of “Kvant” are most likely a debug series with firmware J4V13N12 hardware and, accordingly, software are incompatible with subsequent serial controllers. That is, the J4V13N12 firmware will not work in “non-quantum” ECUs and vice versa. Photo of ECU QUANT boards and a conventional serial controller January 4
Features of the ECM: without a converter, an oxygen sensor (lambda probe), with a CO potentiometer (manual CO adjustment), R-83 toxicity standards.
Bosch M1.5.4 - specifications
The next step was the development, together with Bosch, of an ECM based on the Motronic M1.5.4 system, which could be produced in Russia. Other air flow sensors (FMRS) and resonant detonation (designed and manufactured by Bosch) were used. The software and calibrations for these ECMs were first fully developed at AvtoVAZ.
For Euro-2 toxicity standards, new modifications of the M1.5.4 block appear (has an unofficial index “N”, to create an artificial difference) 2111-1411020-60 and 2112-1411020-40, which meet these standards and incorporate an oxygen sensor, a catalytic neutralizer and adsorber.
Also, for the norms of Russia, an ECM was developed for 8-cl. engine (2111-1411020-70), which is a modification of the very first ECM 2111-1411020. All modifications, except for the very first, use a broadband knock sensor. This block began to be produced in a new design - a lightweight leaky stamped case with an embossed inscription "MOTRONIC" (popularly "tin"). Subsequently, EBU 2112-1411020-40 also began to be produced in this design.
The replacement of the construct, in my opinion, is completely unjustified - hermetic blocks were more reliable. New modifications, most likely, have differences in the circuit diagram in the direction of simplification, since the detonation channel in them works less correctly, “tins” “ring” more on the same software.
NPO Itelma has developed an ECU for use in VAZ vehicles, called VS 5.1. This is a fully functional analogue of the January 5.1 ECM, that is, it uses the same harness, sensors and actuators.
VS5.1 uses the same Siemens Infenion C509, 16MHz processor, but is made on a more modern element base. Modifications 2112-1411020-42 and 2111-1411020-62 are designed for Euro-2 standards, which include an oxygen sensor, a catalytic converter and an adsorber, this family does not provide R-83 standards for 2112 engines. For 2111 and Russia-83 standards only ECM version VS 5.1 1411020-72 with simultaneous injection is produced.
Since September 2003, a new HARDWARE modification VS5.1 has been installed on the VAZ, which is incompatible in software and hardware with the “old” one.
- 2111-1411020-72 with firmware V5V13K03 (V5V13L05). This software is not compatible with software and ECU of earlier versions (V5V13I02, V5V13J02).
- 2111-1411020-62 with firmware V5V03L25. This software is not compatible with software and ECU of earlier versions (V5V03K22).
- 2112-1411020-42 with firmware V5V05M30. This software is not compatible with software and ECU of earlier versions (V5V05K17, V5V05L19).
By wiring, the blocks are interchangeable, but only with their own software corresponding to the block.
Bosch M7.9.7 - ECU specifications
The Bosch 30 series was also found on 1.6 liter engines, but due to the initial development for a one and a half liter car, the software was very buggy, sometimes completely refusing to work. Special equipment marked 31h, released a little later, worked much more adequately.
January seven had many models depending on the configuration and engine size, so on 1.5 liter eight-valve engines, AVTEL production models with a signature stamp were installed: 81 and 81h, the same brain from ITELMA had numbers 82 and 82h. Bosch M7.9.7 was installed on one and a half liter engines of export copies and was marked 80 and 80 hours on Euro 2 cars and 30 on Euro 3 cars.
1.6 liter engines of cars intended for the domestic market had on board devices from the same AVTEL and ITELMA. The first series from the first marked 31 “sick” with the same as Bosch 30 series, later all the shortcomings were taken into account and fixed at 31 h. In case of problems with competitors, ITELMA has grown noticeably in the eyes of motorists, releasing a successful series under the number 32. Additionally, it should be noted that only Bosch M7.9.7 with marker 10 complied with the Euro 3 standard. The cost of a new ECU of this generation is 8 thousand rubles, used You can find it for 4,000 in disassembly.
Video: ECU comparison January 7.2 and January 5.1
ECU pinout diagram January 7.2 VAZ 2114
In the VAZ 2114 controller, breakdowns very often occur. The system has a self-diagnosis function - the ECU polls all nodes and issues a conclusion on their suitability for work. If any element fails, the “Check Engine” lamp will light up on the dashboard.
You can find out which sensor or actuator is out of order only with the help of special diagnostic equipment. Even with the help of the famous OBD-Scan's ELM-327, loved by many for its ease of use, you can read all the parameters of the engine, find an error, fix it and delete it from the memory of the VAZ 2114 ECU .
ECU VAZ 2114 burned out - what to do?
One of the common malfunctions of the ECU (electronic control unit) at the fourteenth is its failure or, as the people say, combustion.
Obvious signs of this breakdown will be the following factors:
- Lack of control signals for injectors, fuel pump, idle valve or mechanism, etc.
- Lack of response to Lamba - regulation, crankshaft sensor, throttle, etc.
- Lack of communication with the diagnostic tool
- Physical damage.
How to remove and replace a faulty computer on a VAZ 2114
When carrying out work on the removal of the VAZ 2114 computer, do not touch the terminals with your hands. There is a possibility of damage to electronics by electrostatic discharge.
How to remove the VAZ 2114 ECU - video instruction
Where is the mass of the computer VAZ 2114
The first output to ground from the ECU on machines with a 1.5 engine is located under the instruments on the steering shaft mounting amplifier. The second outlet is located under the instrument panel, next to the heater motor, on the left side of the heater housing.
On machines with a 1.6 engine, the first output (the mass of the VAZ 2114 ecu) is located inside the dashboard, on the left, above the relay / fuse box, under the noise insulation. The second outlet is located above the left screen of the central console of the dashboard on a welded stud (fastening - M6 nut).
Where is the relay located ECU fuse VAZ 2114
The main part of the fuses and relays is located in the engine compartment mounting block, but the relay and fuse responsible for the VAZ 2114 electronic control unit are located elsewhere.
The second "block" is located under the torpedo on the side of the front passenger legs. To access it, you just need to unscrew a few fasteners with a Phillips screwdriver. Why in quotation marks, because there is no such block, there is an ECU (brains) and 3 fuses + 3 relays.
What to do if the scanner does not see the VAZ 2114 ECU
Reader's question: Guys, why does it say during diagnostics that there is no connection with the ECU? What to do? What to do?
So, why does the scanner not see the VAZ 2114 ECU? What should I do so that the device can connect and see the block? Today on sale you can find many different adapters for testing a vehicle.
If you are buying ELM327 Bluetooth, most likely you are trying to connect low quality devices. Or rather, you could have purchased an adapter with an outdated version of the software.
So, for what reasons the device refuses to connect to the unit:
- The adapter itself is of poor quality. Problems can be both with the firmware of the device and with its hardware. If the main microcircuit is inoperative, it will be impossible to diagnose the operation of the engine, as well as connect to the computer.
- Bad connection cable. It is possible that the cable is broken or is itself inoperable.
- The wrong software version is installed on the device, as a result of which it will not be possible to achieve synchronization (the author of the video about testing the device is Rus Radarov).
In this case, if you own a device with the correct firmware version 1.5, where all six of the six protocols are present, but the adapter does not connect to the ECU, there is a way out. You can connect to the unit using initialization strings that allow the device to adapt to the commands of the machine's motor control unit. In particular, we are talking about initialization strings for HobDrive and Torque diagnostic utilities for vehicles that use non-standard connection protocols.
How to reset VAZ 2114 ECU errors - video
Loss of voltage on the VAZ 2114 ECU - what to do
Question from a reader: Hello everyone, please tell me with a problem. Symptoms are as follows: 1. Error 1206 appears - on-board network voltage-interruption. in cold weather, starting the engine is generally a problem - it seizes for a few seconds, the click seems to be triggered by a relay, the check speed jump lights up and the car stalls. This can go on for half an hour, the car may stall on the move. Once the engine warms up, the noise stops. Where to look for the cause, which sensor may have flown? Thanks in advance!
In principle, there are many solutions to this problem:
- If the voltage on the battery is less than 12.4 volts, then the computer starts saving energy, at 11 you can’t even start it on a cord))) The computer sometimes sees the voltage is less than real on the battery, this usually indicates that it’s time to clean the masses of the computer, look into the connector and wipe the contacts. In your case - cold problems, hot everything is fine. And if you look from the side of the battery? On a sat down problem, on a recharged gene, everything is fine. A good diagnostician will not damage the machine
- I also recommend paying attention to the malfunction: the ignition coil, the ignition module, the contactless ignition switch of the candle.
Well, that's all dear friends, our article about the VAZ 2114 ECU has come to an end. Do you have any questions? Be sure to ask them in the comments!
