VAZ 2112 where is the diagnostic connector located?

Connecting a GM12 and OBD2 scanner to VAZ, Lada cars

This article will discuss ways to connect diagnostic scanners to the OBD2 and GM12 connectors of VAZ, Lada, and the following models: 2107, 2108, 2109, 21099, 2110, 2111, 2112, 2113, 2114, 2115, Granta, Priora, Vesta, X -ray, Kalina, Largus, Niva The work of the ELM327 OBDII and Master Kit BM9213 scanners with VAZ, Lada cars and diagnostic programs Torque, OpenDiag and their correct configuration will be considered. We will also consider connecting these scanners using the example from the videos
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Connecting a diagnostic scanner via GM12 and OBD2 connectors to VAZ, Lada cars

Let's start right away with where most novice diagnosticians of VAZ or Lada cars fail. For its injection cars, AvtoVAZ installed connectors for connecting GM12 type ECUs. The ELM327 scanner is designed to work with OBD2, so contacting the “brains” of the car by using this scanner to diagnose VAZ and Lada cars up to model 2114 will be a little problematic, but, in general, with certain “dances with a tambourine” it is quite possible (although cars with Bosch firmware 7.9.7 will be visible from 2011 without problems). But first of all, we will look at connecting a diagnostic scanner via the GM12 connector, which is connected to a car with a GM12 (OBD1) connector via USB.

Connecting the scanner to the GM12 connector of VAZ, Lada 2107, 2108, 2109, 21099, 2110, 2111, 2112, 2113

For diagnostics (as well as CHIP tuning, firmware) of injection engines of VAZ cars with a GM12 (OBD1) connector via the K-line, a scanner from Master Kit BM9213 and its upgraded version BM9213M are used.

User manual and pinout Master Kit VM9213

Connecting the scanner to the OBD2 connector Lada 2114, 2115, Granta, Priora, Vesta, Kalina, Largus, Niva

Why is ELM327 used more often? Yes, simply because it is more widespread, supports a much larger number of cars and is itself made foreign (by the large Canadian company ELM Electronics), unlike BM9213 and other adapters from Master Keith. ELM327 is also compatible with a huge number of applications, both for PCs and smartphones based on Android or IOS. Or maybe even Windows Phone. The ELM327 can also “connect” with devices via Bluetooth or Wi-Fi protocols, which the original versions of BM scanners could not.

When is diagnostics required?

The first sign that the car system should be diagnosed will be the blinking of the CHECK ENGINE lamp located on the instrument panel. Please note that the presence of errors in the system will be the fact that after 10 seconds after starting the engine, the warning light will not go out and the error data will be stored in the ECU memory.

The error is indicated by an arrow.

Where is the connector?

In order to read all the fault codes that have arisen using diagnostic equipment, you will have to get to the diagnostic connector, which is located directly under the instrument panel console on the left side.

The location of the diagnostic block is indicated by an arrow.

You will detect it immediately as soon as you look at the approximate area of its location, since its characteristic shape is very specific.

Most often, diagnostic program codes are “deciphered” using a special device. However, on VAZs it is not so difficult to do it yourself.

ECU January 4 for VAZ 2110

The diagnosis itself goes like this:

Connect contact “B”, which has the diagnostic block and “ground”;
Turn the ignition key to the third position, do not start the car;
First, the aforementioned “CHECK ENGINE” lamp flashes code 12 three times in a row. It, in fact, does not signal any malfunction, but simply shows that the diagnostic programs are working. On the VAZ 2110 this happens in this order: the lamp blinks briefly once (which should be considered the designation of number 1). After a pause of at least two seconds, it flashes twice in a row (two). So we got the number two. And this is repeated three times so that the driver can understand these signs;
Now you need to be careful not to miss any faults. After the diagnostic program has declared its serviceability, it will begin to display error codes, if any. In the same way - flashes and pauses.

Main aspects of diagnostics of new generation VAZ cars - 2111 and 2112

In order for the car to operate smoothly, it is necessary to monitor its technical condition. Using an on-board computer, diagnostics of VAZ 2112 and 2111 with an 8 and 16 valve engine can be done by yourself. The article describes diagnostic devices and provides instructions for its implementation.

When is diagnosis necessary?

Computer diagnostics involves reading error codes, erasing them and correcting them. For this, various diagnostic adapters and systems are used. These include multifunctional stands, OBD connectors, portable readers and other devices. Thanks to diagnostic equipment and software, the slightest malfunctions in the vehicle’s control system and its main components are detected.

Using diagnostic systems, you can change parameters to increase the power characteristics of the machine. If a new car model comes out, you can reprogram the functions for the new equipment.

Computer diagnostics are usually carried out in the following cases:

indicators on the dashboard light up, signaling any malfunctions;
the driver has suspicions of a malfunction of any components or systems;
check the condition of a used car before purchasing;
Experts recommend diagnostics at least once a year.

Diagnostics using electronic equipment makes it possible to obtain real information about the technical condition of the car.

Instructions for performing diagnostics

To diagnose a VAZ, a computer or diagnostic equipment is connected using a diagnostic connector.

Computer diagnostic socket

All broadcast codes are read by the scanner. They are stored in the controller’s memory until its power is turned off. Using special software, specialists decipher the codes and determine what malfunctions and failures exist in the system.

The diagnostic procedure consists of several stages:

Suspension diagnostics. This procedure is performed if uneven tire wear, knocking or humming is detected when driving at a constant speed, making sharp turns, or on an uneven road. And also in case of premature activation of the ABC, increased free play of the steering wheel.
Engine check. The power engine should be diagnosed if it runs intermittently, takes a long time to heat up, is difficult to start, as well as with increased fuel consumption, loss of power, the appearance of extraneous noise, or a decrease or increase in idle speed. During diagnostics, the electrical supply and ignition system are checked, and the pressure in the cylinders is measured (the author of the video is Pavel Master).

An automatic transmission is diagnosed in the following cases:

no gear is engaged;
When changing gears, noises, jerking, and slipping appear;
increased fuel consumption;
Oil leak detected.

During diagnostics, the scanner reads error codes of the automatic transmission control system, evaluates the readings of the throttle position and cooling system temperature sensors, as well as the position of the automatic transmission selector.

First of all, diagnostics are performed using a scanner. The scanner readings are deciphered and conclusions are drawn about problems in the system. At the second stage, analog testing is carried out - wiring, contacts, and batteries are checked. Next, an online check is carried out. The screen displays indicators of sensors, fuel injection, etc. Then the data obtained during posting is analyzed. At the last stage, the error codes stored in the controller’s memory are erased. After this, reinitialization is necessary.

Connector location and features

For communication with the controller there is a connector, which is a trapezoidal block with 9 blocks. To connect a scanning device, you need to know where the diagnostic connector is located. In a VAZ 2112 car it is located under the instrument panel console to the left of the steering column.

Location of the connector on the VAZ 2112

On the VAZ 2111, the connector is also located in the area of the steering column on the right. Most often it has a vertical location.

Location of the connector on the VAZ 2111

The VAZ diagnostic connector can be 10, 12 or 16-pin. It depends on the year of manufacture of the car. An adapter may be required for connection.

Pinout

If self-diagnosis is carried out, then you need to know the lining of the block. Pinout is the purpose of the contacts that are located on the block. Below is the OBD pinout.

Pinout of OBD II device for VAZ

“A” is the contact responsible for connecting the ground; “B” is the contact that is necessary to connect the L-Line; “M” is a contact that is used to connect K-Line; “G” - contact responsible for controlling the fuel pump; “H” - contact for +12V power supply.

You can diagnose your car yourself by connecting a scanner or other diagnostic equipment to the diagnostic connector. This will save time and money on visiting a car service center.

Video “OBD Connectors and Pinout”

This video demonstrates existing OBD connectors and their pinouts for various car brands (video author: MotorState).

Connecting the ELM 327 adapter to the VAZ 2110 diagnostic connector with your own hands (with photo)

There is a special lamp on the instrument panel with the inscription CHECK ENGINE. When you turn on the ignition, it lights up, and until you start the engine, a special program reads data from all systems and components of the car, thus transmitting data to the on-board computer to identify faults.

After you start the engine, the lamp should go out, but if it stays on for another 10 seconds, it means that some problems have been identified and error codes have been entered into the on-board computer programs. Communication with the controller is carried out using the diagnostic block.

CHECK ENGINE control signal on the instrument panel of a VAZ 2110

ELM327

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

ELM327 is one of the latest OBD developments. This scanner is used to check cars using a computer. The key advantage is that the device supports all known OBD protocols and interacts with many diagnostic programs. A USB cable is used to connect the device to a computer.

The software for the ELM327 is mostly free, although some software is available only for a fee.

The adapter can work on computers with different OS. Namely:

DOS;
Windows;
MacOS;
Linux;
PalmOS;

The full capabilities of the scanner can only be fully realized through properly selected software. For self-diagnosis, software for scanning the transmission and engine is available free of charge. Commercial versions of the programs allow you to additionally check other components of the car.

Key Features

Let's take a look at the capabilities that the ELM327 chip provides:

Reads error codes and vehicle malfunctions;
Displays codes and their descriptions;
Exports data for printing, if necessary;
Removes error codes;
Displays data in metric and US measurement systems;
Records, saves data, builds graphs;
It has an acceleration counter from 0 to 100 km/h, which allows diagnostics on the go.

Many vehicle operating parameters must be checked while driving. Not all adapters are suitable for this, so it is important to choose equipment that suits your requirements.

Equipment

By purchasing this adapter, you get:

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

It is not necessary to have a powerful computer to operate the adapter and receive information. The parameters of the simplest laptops are quite enough to diagnose the VAZ 2110.

Self-diagnosis allows you to save a lot of money, get objective information about the condition of your car, and also save yourself from unnecessary financial costs that will certainly appear when you go to a service station.

Why is diagnostics needed?

Let's first figure out why we need to diagnose faults and whether this is required specifically for your car.

The main advantage of diagnostics is the ability to save money, time and modern nerves. If the car begins to behave inappropriately, some extraneous sounds appear, the stable operation of the engine is disrupted, then there are two options:

To study all systems manually by dismantling and testing would waste a lot of time and nerves. The probability of finding the cause of the breakdown is far from 100%!
Conduct computer diagnostics yourself by connecting a special adapter or cable to the computer. The program will scan the car and be able to issue the appropriate error codes. After studying our material with error codes, you can easily find the reason why the car began to behave abnormally.

Is it worth going to a service station?

The quality of diagnostics at a service station is often not much different from an independent check. Having an adapter and cable to connect the device allows you to deal with the problems of your own car without outside interference.

By contacting a service station, they can diagnose you with the same equipment, but they will only ask you for a decent amount of money. If you do not control the progress of the check yourself, technicians may claim to have found other errors that in reality do not exist.

The result of visiting a dubious service station for diagnostic purposes can be serious financial costs and a long absence of the car at your disposal.

Example of an adapter with cable

The only option when it is worth contacting a car service center is the lack of diagnostic equipment and the presence of good friends among car mechanics.

We recommend: Official Chery dealer

How to diagnose a car

Connect contact “B”, which has the diagnostic block and “ground”;
Turn the ignition key to the third position, do not start the car;
First, the “CHECK ENGINE” lamp displays code 12 with 3 flashes. It shows that the diagnostic programs are working. On the VAZ 2110 this happens in this order: the lamp blinks briefly 1 time (which should be considered the designation of number 1). After a pause lasting at least 2 seconds, it flashes 2 times in a row (two). So we got the number two. And this is repeated 3 times so that the driver understands these signs;
After the diagnostic program has declared its serviceability, it will begin to display error codes, if there are any, of course. In the same way - flashes and pauses.

Operating principle of the diagnostic connector

Information is collected, processed and stored. External test equipment connected to the diagnostic connector located inside the cabin will help you interrogate the electronic control unit, view error messages, find and eliminate faults. The European standard, launched in 2000, specifies that the test connection be located directly next to the driver's seat at an outstretched distance (up to 1 meter). The exact location is not specified. Access must be free, excluding additional manipulations with wrenches.

The creators of European passenger cars place diagnostic blocks under:

dashboard,
handbrake lever,
steering column,
ashtray.

Important. On the VAZ 2110, the diagnostic connector is mounted in a niche under the steering wheel on the driver's side.

The information provided by the car's electronic unit uses a special data exchange algorithm. The OBD2 (On-Board Diagnostics Version 2) protocol, developed by the USA, is recognized as a mandatory standard for checking cars with internal combustion engines. The command system, electrical signals, and exchange order are discussed. The shape of the connector has not been clearly established. Historically, since 2000, a two-row 16-pin trapezoidal connector has been used. At the same time, the VAZ 2110 continues to use the old-style 12-pin GM-12 connector. Manufacturers equip trucks and commercial vehicles with connectors of other types.

Video “Checking VAZ 2110”

How computer testing of components of the domestic “ten” is carried out if the vehicle jerks and stalls (the author of the video is Vyacheslav Kravchenko).

Pinout of connectors for connecting the OBD-2 USB-KKL cable to the OBD-1 (GM-12) VAZ connector.

Pinout of the old-style OBD 1 (GM-12) diagnostic connector for VAZ 2107, VAZ 2110, VAZ 2112, VAZ 2114, VAZ 2115 cars for connection to the USB-KKL cable if there is no adapter.

Connection (pinout) of the OBD-2 USB-KKL cable for connection to the old-style OBD-1 (GM-12) connector to VAZ 2107, VAZ 2110, VAZ 2112, VAZ 2114, VAZ 2115 cars without an adapter.

OBD connector location. How to find the OBDII connector

If you have purchased a diagnostic adapter and do not know where the OBD 2 diagnostic connector is located in your car, then this article will come in handy. The article will tell you where the diagnostic connector is located on cars of various brands: VAZ, GAZ UAZ, Chevrolet, Reno and others. The diagnostic 14-pin connector on a VOLGA car is located under the hood, on the wall of the engine compartment, on the passenger side

On newer models, this connector is already standard OBD 2 located under the steering wheel (a similar location in Gazelle cars of recent years). On a VAZ 2110 - 2112 car, the diagnostic connector is located to the right of the driver, next to the steering column at the bottom.

On a VAZ 2109 with a high instrument panel, the diagnostic connector should be found on the shelf under the glove compartment, next to the car's ECU. On cars of the VAZ 2108-2115 model range with a “European panel”, the diagnostic connector is located in front of the gearbox, directly under the cigarette lighter. The diagnostic connector is covered with a decorative cover. On a Kalina car, the diagnostic connector is also located behind the decorative cover near the gearshift knob. On VAZ Priora cars, the OBD diagnostic connector is located on the rear wall, behind the glove compartment. On UAZ cars, the diagnostic connector is located either under the hood near the wall on the left of the driver (goat), behind the driver's seat (loaf), under the steering column on new cars like UAZ Patriot. On Reno cars, the diagnostic connectors are located either behind the glove compartment; if you open it, you will see a diagnostic connector at the very end of the far wall behind the decorative cover, or under the steering column from below. On Chevrolet cars, the diagnostic connector is also usually located under the steering column at the bottom, or to the right of the driver on the side of the center console, near the driver’s right foot (Chevrolet Lanos).

Where to look for the connector

It is important to know that on different cars the required socket is located in different parts of the car. Moreover, on some AvtoVAZ models it may be in a completely different place compared to another car. Let's look at several VAZ cars as an example:

on the VAZ-2112, as well as on the 2110, as well as 2111, the socket is located to the right of the driver’s seat, immediately under the column;
on models 2108, 2109 and 21099, the socket you need is located under the glove compartment, on a special shelf;
on cars with a europanel it can be found in the center of the console, near the cigarette lighter. A special decorative cover is used to disguise it;
on Lada Kalina cars, the connector can be found near the gear shift lever. As is the case with cars with a Europanel, it is hidden under a special cover;
on a Priora you need to look for it right behind the glove compartment, on the wall.

We recommend: How to connect autostart to an alarm system

Improvement of the OBD connector for the VAZ 2110: independent connection of the ELM 327 adapter

There is a special “CheckEngine” light on the dashboard of the VAZ 21110 car. When the ignition is turned on, the light comes on and while the vehicle’s internal combustion engine is not running, a special program reads data from all units and systems of the vehicle, transmitting data on fault detection to the on-board computer.

If, after starting the vehicle’s internal combustion engine, the “check” does not go out for another 10 seconds, it means that faults in the system have already been identified and the corresponding error codes have been entered into the memory of the on-board computer.

The codes are deciphered either with a special diagnostic device or independently. Using the example of the VAZ 2110 “January-4” ECU, we will consider the algorithm for performing diagnostics independently:

connect contact “B” of the diagnostic block and “ground”;
turn the ignition key to the third position without starting the car;
the “CheckEngine” light illuminates the code “12” (the light flashes once -1, after a pause of two seconds it flashes twice in a row -2 flashes three times in a row (the program has started diagnostics);
the program will detect the malfunction by displaying the corresponding error codes (flash, pause).

Some tips for installing a modern ELM 327 adapter with the OBD-II program (protocol) for the VAZ 2110:

purchase an adapter along with a cable;
study the installation instructions (pinout of the block and location of each connector);
You must insert your own cable into each connector of the block, checking the pinout; it must comply with the manufacturer’s instructions.

Let us also add that programs for determining faults of the ELM 327 adapter are downloaded from various sources on the Internet.

Instructions for performing diagnostics yourself

When the location of the diagnostic connector is known and all the necessary equipment is prepared, you can begin checking. According to many Russian car enthusiasts, preparing a laptop and a tester will be quite enough to check all components and systems on the “top ten”. But you should always remember that successful testing is only possible if the person who conducts it understands something about it and has certain knowledge.