TOP 9 best auto scanners for car diagnostics: rating, reviews

Diagnostics of VAZ PRIORA using a smartphone and OBD 2 Bluetooth Car ELM 327 Reader Diagnostic Scanner

Often those who purchase OBD scanners for self-diagnosis of their car have questions about how to diagnose a car with only a smartphone with an Android system and Bluetooth ELM 327 OBD 2 scanner.
In this article we will try to describe the diagnostics step by step using the example of the VAZ PRIORA diagnostics.

For other brands of cars that support OBD 2 , everything is the same, the only difference is in the location of the diagnostic connector and in the number of sensors available for diagnostics; if your car model does not have any control sensor, then it is simply not in the list of available for diagnostics.

So we have an OBD 2 Bluetooth Car ELM 327 Reader Diagnostic Scanner and a smartphone without any identifying markings. Having rummaged through the menu, we find the item ABOUT THE PHONE and read: ANDROID 4.1.2; Model GT-I9500 i.e. A Chinese analogue of the Samsung GALAXAY S4, for our purposes any smartphone on Android is suitable and you will need to install the TORQUE - diagnostics and engine control - the most convenient in my opinion and you can easily download the Russified version from the Internet.

1. Find where in the car the OBD 2 diagnostic connector is located in the VAZ PRIORA (station wagon), it was found when opening the glove box (glove compartment) behind it on the left side, on the website shop.avtoc.com in the article about the diagnostic scanner for PRIORA this is the location It has already been suggested that there is no need to disassemble and remove the glove box because the scanner is small-sized and fits perfectly into this connector when the glove compartment lid is open, although it is poorly visible and probably the designer could have chosen a more convenient place.

2. We insert the scanner into the connector without distortion; you can illuminate it with a flashlight if it’s a little dark in the garage and you can’t immediately touch it

3. You don’t need to start the engine right away; first you need to pair the scanner with your smartphone

SYSTEM SETTINGS menu item, find the Wi-Fi SETTINGS item and the Blueto SETTINGS item. Wi-Fi SETTINGS can be switched to OFF mode, but Blueto SETTINGS.., be sure to switch to ON mode and then hold your finger on the inscription of this setting, enter the submenu where there will be an inscription about searching for devices and a list of available devices - in addition to OBD II, there may be, for example, BT-300 (wireless earphone) if you have connected such a device previously. If the scanner is connected for the first time, a window will pop up prompting you to enter a code of four zeros or a sequence of numbers 1234,

we point our finger at this empty line and a very inconvenient keyboard appears on the screen, but after several attempts we manage to dial 1234 and press ok ,

we see the message OBD II paired but not connected

That's how it should be!

4. Start the car engine,

We pick up the smartphone again and run the pre-installed TORQUE

If, when starting the program, a message pops up to CALIBRATE, answer NO,

This can be done as needed later.

Place your finger on the screen just below the inscription GRAPHICS and moving your finger in a semicircle will display several more menu items - we are interested in the inscription ADAPTER STATUS, press your finger and view information about the scanner we have connected to the car

Having thus verified the functionality and normal wireless data exchange, you can also interrogate the scanner about its software version, etc., see which vehicle sensors are available for diagnostics

Yes, Priora doesn’t have that many sensors available for diagnostics - I counted seven) and plus duplication of all dashboard readings

5. Let's return to the main TORQUE and start diagnostics by clicking on ERROR CODES

Further actions do not require comments, you need to wait a couple of minutes and if everything is fine, you will receive green inscriptions on the smartphone screen next to the names of the sensors

if an error pops up along with the decoding, for example 304 - ignition system error, then this indicates the need to take the spark plug wrench and replace the 4th spark plug

TORQUE has many fine settings, but the initial diagnosis of the car can be done right away without worrying about the engine size, etc.

In conclusion, about one noticed subtlety - if in step four, when you launch the diagnostic program, you do not see all the green checkmarks in the ADAPTER STATUS, then with the car engine running, on the smartphone we again go to SYSTEM SETTINGS in Blueto SETTINGS .., and if the OBD II inscription is associated with but not connected remains unchanged, then we point our finger at this inscription, and when prompted to disconnect the device, we confirm the disconnection, then we search for devices again, enter the 1234 , and as a result, after re-entering we should get OBD II paired and connected

and you can return to the running diagnostic program.

Decoding combinations

Well, now it’s time to tell you about decoding fault combinations.

Diagnostic connector for connection to the on-board computer

Decoding codes after diagnostics with a scanner

As stated above, if the measured characteristics do not differ from the standard ones by more than 20%, then everything is in order with the car. What are the standard parameters?

Deciphering codes for self-diagnosis

Checking instrument panel sensors before diagnostics

Most common mistakes

Below is a breakdown of the most common error codes encountered when diagnosing a Lada Granta.

Features of diagnosing VAZ and LADA cars using auto scanners

Reading time

Difficulty of the material:

For fans - 3 out of 5

Most modern Russian cars of the VAZ and LADA family are equipped with an electronic control unit, as well as an on-board computer. Thanks to such electronics, the use of diagnostic equipment is becoming increasingly important.

The presence of all kinds of sensors on important components (engine, electrical, gearbox) allows you to monitor parameters, as well as accurately determine the type of malfunction. All information read by such sensors is sent to the ECU, then the data is converted into numbers using standardized protocols and transmitted to diagnostic equipment via the OBD2 connector. Then, using the software, the parameters and values ​​of the sensors are displayed on the external display.

The OBD2 diagnostic adapter reads and deletes errors , and depending on the capabilities and cost, such a car scanner can solve other problems, including chip tuning.

Types

The device can be made either as a stand-alone portable element or as an entire multifunctional computer complex. Basically, an automotive diagnostic scanner can be of two types - multi-brand and dealer.

The first type of devices has one significant advantage: it is compatible with various brands of cars. Automobile manufacturers use a variety of information protocols and different connectors for connecting testing equipment in equipping their cars.

Therefore, the software of the universal diagnostic device allows you to work with a variety of vehicles, and a set of various connection adapters eliminates the problem of connecting the scanner to systems.

The second type is devices that have the ability to test electronic systems of only certain brands of cars. Devices of this type are equipped with many functionalities and work as a universal diagnostic scanner. At the same time, they provide for the presence of so-called guided diagnostics. Thanks to it, the tester not only indicates a malfunction, but is also able to determine the cause and indicate an option for eliminating the error.

The functionality of scanning devices for each brand has its own limitations. For example, with a multi-brand scanner it is impossible to reprogram the electronic unit, determine the cause of the malfunction and how to eliminate it. To do this, you need to additionally use special decryption guides, and only then select possible repair measures.

What is checked during diagnostics, and on which cars is this possible?

LADA manufacturers are constantly improving their models, while simultaneously improving technical and technological equipment. The only exceptions are models without an ECU, before 1996.

Problems may also arise when diagnosing cars before 2000, but in any case, these models have a connector, you will need adapters (from 12 pin to 16 pin), or use a VAG 12 pin adapter cable.

Computer diagnostics are possible on the following VAZ models:

• 2104 - 2107 (including until 2007);
• 21053 - 21074 from 2010 (euro3);
• 2108, 2109, 21099;
• 2110, 2111, 2112, 2113, 21124, 2114, 2115;
• 2121 and other modifications of Niva;
• Lada Priora and Lada Kalina, Granta, Vesta, Largus, X-Ray.

List of ECUs compatible with equipment for computer diagnostics:

• Bosch MP7.0H
• Bosch M7.9.7
• Mikas 10.3
• ME17.9.7 (ZMZ-409)
• M74
• M74K
• M17.9.7 Viburnum
• M17.9.7 Priora
• M17.9.7 Niva 4x4
• January4
• January 4.1
• M1.5.4
• M1.5.4N
• MP7.0

Engine control unit Lada Granta

As mentioned at the beginning of the article, Granta received new “brains” with CAN support (M74CAN). This innovation is capable of integrating “brains” with alarms and radios with a CAN bus.

They often install a “Standard” controller with Itelma number 11186-1411020-22: This ECU is not compatible with earlier VAZ models. In early VAZs, for example, Priora, the ECU came with a K-channel for data transmission.

Location of the ECU for Granta:

The “brains” are located at the bottom of the front panel, or rather under the glove compartment. It will be better visible if viewed from the passenger seat. The ECU is hidden by sound insulation and upholstery, so it will not be easy to get it out.

ECU firmware:

Serial firmware should indicate an optimized dynamic version for the 1.6-liter 8-valve Granta with an “M74” controller and an exhaust gas emission standard of “EURO-2”.

ECU chip tuning allows you to physically disable the second oxygen sensor (“lambda probe”) along with the catalyst. If this version of the firmware is implemented, this will lead to a significant increase in the dynamic capabilities of Granta.

To find out what firmware the control unit has, use the OpenDiag application, together with a diagnostic adapter connected to the OBD2 connector.

Methods for diagnosing ECUs and errors on Lada Granta via OBD2

Self-diagnosis

On Grant, the ECM with the M74 controller has built-in self-diagnosis that detects malfunctions. The ECM detects the problem, then the “Check Engine” light comes on and the error identification begins. Then the code is saved in memory and shown on the dashboard.

Did the Check Engine light come on on Grant?

Detailed article on the causes of Check Engine and how to clear the Check. If your Check Engine light comes on, read this article immediately. The material explains what a Check Engine is, what to do if it appears, and how to remove this error yourself.

Is the Check Engine light on?

TOP 15 reasons why the Check Engine light comes on and ways to solve the problem. Read the article to solve the Check Engine problem.

Reviews of diagnostic scanners for LADA GRANTA

Read detailed articles on the review of car scanners, including those compatible with LADA GRANTA.

Reviews of OBD2 diagnostic car scanners

This section provides descriptions of diagnostic scanners and adapters. Before purchasing a scanner for your car, it is recommended that you read reviews of the most popular equipment models.

OBD2 scanner for VAZ car - list of monitored parameters

1. Outputting and reading error/problem data from CU memory blocks;
2. Displaying actual values ​​of measured parameters;
3. Management and control of actuators;
4. Display of graphical information with values ​​during the check (graphs and tables);
5. Use of specialized ECU capabilities (depending on the manufacturer);
6. Testing and monitoring of electrical connection circuit components, correct installation of electrical circuit components (chips/sensors);
7. Regulatory (declared) data on controlled parameters;
8. Carrying out voltage measurements;
9. Carrying out resistance measurements;
10. Carrying out current measurements;
11. Using an oscilloscope to record the values ​​obtained during testing.
12. Definition of about 3000 error codes;
13. Engine speed - idle, operating code;
14. TOZH;
15. Fuel consumption;
16. Intake air temperature and air flow rate;
17. Absolute throttle position;
18. Oxygen sensor;
19. Fuel system and pressure indicators;
20. Read other data and faults.

A diagnostic device connected to the Lada control unit evaluates the accuracy and serviceability of the sensors. The result is a clear assessment of the technical condition, and the ability to carry out repairs in a short time with minimal financial costs.

Frequently asked questions about auto diagnostics via a computer or smartphone

Engine diagnostics

The capabilities of engine diagnostics via the OBD2 connector depend on the scanner and software. For example, a simple amateur adapter ELM327, together with the OpenDiag application on a smartphone, allows you to read engine errors and decipher them, as well as view temperature sensors and engine speed, both at idle and while driving in real time.

We provide documentation for engines with electronically controlled throttle valves that meet toxicity standards. Read the files by running engine diagnostics.

ABS diagnostics via OBD2 connector

If problems arise with the ABS, before changing or manually diagnosing the problem, read the errors according to the instructions provided. Checking for errors will show you not only the condition of the sensors, but also the wires and connectors.

Diagnostics of mass air flow sensor

Using the Open Diag program, we record the voltage at the mass air flow sensor. The permissible voltage values ​​are:

• if the sensor is in good condition, the voltage is from 1.01 to 1.02 V;
• in satisfactory condition - from 1.02 to 1.03 V;
• a value ranging from 1.04 to 1.05 indicates a near-death state

Important: If it exceeds 1.05 V, the mass air flow sensor requires replacement!

Diagnostics of the oxygen sensor (lambda probe)

The oxygen sensor is checked using the Open Diag program and an adapter connected to the OBDII connector. We analyze the voltage values ​​at the sensor.

When the engine is running, the voltage should change from 0.008 to 0.7V and back. There should be no smooth declines or freezes on the oscilloscope.

Automatic transmission diagnostics

Diagnostics of the gearbox is also possible, but limited by the Granta ECU itself. Yes, you can use professional, expensive car scanners, but we are talking about self-checking.

Using an adapter and an application on a smartphone, you can see errors in the transmission; if there are any, their decoding will indicate one or another malfunction of the box. Also, in real time, data from temperature sensors is taken from the box.

Automatic transmission errors:

P0720 “Output shaft speed sensor is faulty” P0717 “Turbine speed sensor” P0706 “Automatic transmission selector. No signal" P0705 "Automatic transmission selector. Several signals at the same time" P0974 "On-off solenoid. Open circuit" P0973 "On-off solenoid. Circuit shorted to ground" P0963 "Pressure control solenoid. Open circuit" P0962 "Pressure control solenoid. Circuit shorted to ground" P0740 "LOCK UP SOL(Open)" P0743 "LOCK UP SOL(GND short)" P17AB "L/C SOL(Open)" P17AA "L/C SOL(GND short)" P17AE "2-4 /B SOL(Open)" P17AD "2-4/B SOL(GND short)" P17B1 "H/C&L&R/B SOL(Open)" P17B0 "H/C&L&R/B SOL(GND short)" P1735 "INTER LOCK FUNCTION (1st)" P1736 "INTER LOCK FUNCTION(2nd)" P1737 "INTER LOCK FUNCTION(3rd)" P1738 "INTER LOCK FUNCTION(4th)" P0744 "LU CLUTCH(Lock-up)" P1744 "LU CLUTCH(Slip Lock-up) )" P0731 "Incorrect automatic transmission ratio in 1st gear" P0732 "Incorrect automatic transmission ratio in 2nd gear" P0733 "Incorrect automatic transmission ratio in 3rd gear" P0734 "Incorrect automatic transmission ratio in 4th gear" P17A1 "NEUTRAL FUNCTION(1st)" P17A2 "NEUTRAL FUNCTION(2nd)" P17A3 "NEUTRAL FUNCTION(3rd)" P17A4 "NEUTRAL FUNCTION(4th)" P17A0 "NEUTRAL FUNCTION(Rev)" P0712 "Oil temperature sensor, low reading" P0713 "Oil temperature sensor, high reading" P0711 “Oil temperature sensor, frozen” P0863 “CAN bus connection (initialization)” P062F “BACKUP MEMORY” P1701 “Controller supply voltage”

Diagnostics and testing of the electronic gas pedal

VAZ supplies LADA GRANTA cars with an electronic gas pedal (E-gas) to comply with modern environmental standards.

If the pedal is malfunctioning (no responsiveness or increased engine speed when changing speed on the gearbox), then before dismantling and checking the unit with a multimeter, read the errors through the OBD2 connector.

Typical errors related to the accelerator pedal:

• The “Check Engine” light came on on the dashboard (error 0504);
• Error: Low/High signal level of the first accelerator pedal sensor.

Removing errors will not help here; you need to eliminate the cause of the breakdown and only then erase the errors. If errors are indicated and the pedal does not work stably, you should adjust the sensitivity of the gas pedal itself, it should become more responsive.

EUR - electric power steering

If the EPS diagnostic light comes on or the EPS periodically turns off/on, you should first check the electric power steering through the diagnostic connector.

The same Open Diag application, together with a diagnostic OBD2 adapter, will help with this, or

other scanners: Scanmatic, ScanDoc, Motor-Master. The diagnostic process boils down to identifying errors, decoding them and further repairs according to the type of malfunction.

The check can also be performed without a scanner, in this way:

1. Under the steering wheel, near the ignition switch, you should find an 8-pin black connector. You will need to dismantle the casing at the steering column (unscrew the fastening screws from the bottom).
2. Next, insert a paperclip and close the two contacts, as in the first photo at the beginning of the article. (these are contacts No. 6 and No. 7).
3. Turn on the ignition and look at the control lamp.
4. The first signal is a long lamp burning - “1”
5. Next, we count the subsequent short signals, if there are 3 short ones then “3”.
6. In our case, the result was code “13”.

Electric power steering error codes:

11 - The system is working; 12 - No engine speed signal; 13 - Malfunction of the torque sensor; 14 - EMUR engine malfunction; 15 - Malfunction of the steering shaft position sensor; 16 — Malfunction of the EMUR engine rotor position sensor; 17 — Malfunction of the car’s on-board network (below 10V or more than 18V); 18 — Malfunction of the EMUR control unit; 19 - Vehicle speed sensor malfunction.

Types of equipment used to check LADA

A list of diagnostic devices used not only in specialized car services, but independently, for example, in a garage. • Odometer correctors, with setting mileage values; • Models that support protocols, by reading information, erasing errors, codes are deciphered: ELM327 USB / Bluetooth / Wi-Fi running on the elm327 chip; • Vag adapter (cable) for later versions of the ECU and 12 pin pads; • Testers whose work is organized on the basis of oscilloscopes.

Diagnostic devices that support combination with ABS and SRS units, as well as using a CAN bus, are in demand.

Modern popular models

The best diagnostic scanners compatible with the VAZ have been selected for review. We pay attention to the following samples:

Scan Tool Pro

Scan Tool Pro is a compact adapter without an external environment, built on a universal microprocessor elm327 (basic) Chip version v.1.5 (PIC18F25k80). This diagnostic OBD2 scanner is used in conjunction with a laptop or smartphone; it has Wi-Fi and Bluetooth versions.

The device is practical and reliable, so it is sold out from official dealers very quickly. Reviews for this adapter are mostly positive, but it is difficult to purchase due to the shortage of original versions. Supports all common protocols and car brands.

Scan Tool Pro - budget multiscanner

A good choice for a novice diagnostician. New 2020

Nowadays there are scanner models with different versions of firmware and chips on sale. Scan Tool Pro with firmware 2020 is the most stable version so far, and also has maximum compatibility with cars manufactured since 2001 (Russia, Asia, Europe, States). You can buy Bluetooth scanners for car diagnostics of the Scan Tool Pro brand from an official dealer who provides a 12-month warranty using the link on the right. Happy diagnostics!

Launch Creeder VII

Launch Creeder VII. A semi-professional tool for self-diagnosis of modern engine control systems and ECUs. Suitable for domestic cars equipped with an electronic control unit. There is an external display and built-in software.

This version has a complete base for Russian cars, the adapter is even suitable for VAZ 21124. Optionally, the kit includes adapters for various brands of cars.

Bosch KTS 590

Bosch KTS 590. Refers to professional diagnostic equipment and is more expensive than the previous car scanner. The device is connected to a laptop or desktop PC, and there is also an external display.

The kit includes an oscilloscope and a digital multimeter. It is possible to carry out not only computer, but also instrumental diagnostics of electrical circuits and connections. Well suited for car repair shops

Scanmatic 2

Scanmatik 2. The device has shown itself very well with Russian cars. Scanmatic 2 is characterized by fairly high operating efficiency; it reads information using a tablet or smartphone.

Supported protocols: OBDII/EOBD (13 x ISO-9141/ISO-14230 (KLINE); 1x High Speed ​​CAN (ISO-15765); 1x Single Wire CAN (GM-LAN). 1 x J1850 VPW; 1 x J1850 PWM; 1 x Medium Speed ​​CAN (GM-LAN).The kit includes adapters for various brands of cars, additional adapters can be purchased from an official dealer.

Launch X431 Pro

Launch X431 Pro. Leader of the Russian market of equipment for auto diagnostics. Since 2016, it has been supplied with a DBS Car II adapter, as well as a tablet with large memory for programs and high-capacity batteries.

Grant diagnostic connector: where is it located?

The OBD port has been actively used in cars all over the world since 2001 . AvtoVAZ began installing OBDII on its models starting with Kalina - before that, a 12-pin plug was installed on the tenth family.

The photo shows an example of an installed ELM327 scanner.

Looking for OBD2 on Grant:

• Sitting in the front right seat, we find the glove compartment lid;
• Place your hand on the bottom edge of the lid and move it to the left to the center console;
• Your hand will rest on the diagnostic connector.

As a visual reference, we look at the ventilation grille at the feet of the front passenger - the required plug is located above it.

It is not necessary to look at the port itself - it is easy to find from the driver's seat. The main thing is to know where to look.

How to use

Before purchasing an adapter, make sure it is compatible with your car. After purchasing the adapter, it is important to correctly connect the scanner to the connector. As a rule, the OBD 2 connector is located in the passenger compartment under the dashboard. Models before 2006 usually have a 12 pin connector (GM), and to connect the scanner you will need a 16 pin adapter.

Information on the location of the connectors is presented in the table and photo below.

Location of diagnostic connectors and recommended auto scanners:

Location of connectors on some vehicles:

How to connect to the ECU

First of all, you need to connect the auto scanner to your smartphone/tablet via Bluetooth and enter “1234” as the password.

As a rule, automatic selection of OBD protocols does not work. You must manually select the protocol.

The first application that finally “saw” the ECU was OBD Car Doctor , which connected using the ISO 15765-4 CAN protocol (11 bit, 500 kbaud). Then the ECU saw the OpenDiag Mobile through the Itelma M74CAN .

The following applications were also seen by the ECU through this autoscanner:

• Torgue
• obd harry
• Car Scanner
• CarPref Pro
• OBD Auto Doctor
• DashCommand
• Piston

Programs and applications used

Software that can be used for diagnostics is widely available. The portable diagnostic device Scan Tool Pro or any other OBD2 adapter without its own external environment is capable of working both through a smartphone (Anroid, iOS) and through a laptop running Windows OS.

Common and popular programs for diagnosing VAZ and GAZ are currently:

• OpenDiagPro. Designed for cars with an injector. It monitors not only all the main digital and graphic parameters of the power unit, but also indicates ECU errors. There is a version for PC and smartphones, used for diagnostics via 16 pin OBD2. • Diagnostic Tool v1.31.2 - functional program, a huge number of adjustments. Works via KLine (VAG adapter cable). Only the version for computers and laptops is distributed. • Standard My Tester VAZ program, used when the vehicle leaves the factory. Also suitable for diagnostic operations. PC version only. • The KWP_D program makes it possible to check all brands of domestic cars, a number of popular foreign cars, and their power units. Desktop version only. • The AVTOVAZ New program is also of interest to users. It helps to audit fuel injection, control the operation of injectors and the fuel pump. PC version only. It also works via KLine (VAG).

What do people pay attention to when choosing a car scanner in 2022?

As professionals in the field of vehicle repair say, all such products can be divided into two large groups - hardware scanners and scanner-adapters. The first type is a completely self-sufficient product that connects to the on-board computer and reads all the data independently. The most modern models are equipped with a connector for connecting to a personal computer. Professionals prefer to use such products. However, it is worth considering that the software of this equipment will have to be updated periodically, and this is done exclusively in authorized service centers.

Adapters will require a fairly modern smartphone or laptop for full operation. Such designs are very popular among ordinary motorists, as they are quite simple to use. In terms of functionality, there is also a certain gradation - dealer, brand and multi-brand. The first ones are equipped with special software that is suitable only for one make and model of car, and they are very expensive. Branded car scanners are also professional equipment; they are cheaper and have less functionality. The programs included in such products are designed only for certain brands of cars. The most common today are multi-brand scanners that are suitable for most cars.

When choosing this equipment, you should remember that its cost is directly proportional to the quality of the software. Let us summarize some intermediate results. So, when buying a car scanner, you should definitely pay attention to the program included in it. The wider the software, the wider range of tasks the device can perform. It is advisable to give preference to a universal product, since it is quite possible that you will want to change your car. If you are buying a scanner for private use, it is best to choose a model with the simplest controls. If the design is connected to a smartphone or laptop using a wire or through a wireless interface, then this will be an additional advantage.

When developing this rating of the best car scanners, we took into account all the points mentioned above, but also paid attention to reviews from users and professionals. An important selection criterion was the ratio of price and quality of design; the most expensive equipment was not included in our rating. Now is the time to turn to the analysis of specific models.

Car scanners for personal use for Lada (VAZ) Priora cars

Select your car model.

Creader 6 is a compact auto scanner with a large color screen. Allows you to read and clear trouble codes, display current information about the car, and also perform many special tests.

Compact car scanner for European, Asian and American cars. Allows you to diagnose vehicles that support OBD2/JOBD/EOBD protocols, including those equipped with a CAN bus, including right-hand drive vehicles using the JOBD protocol.

Launch Creader 5 is a portable car scanner designed to read and clear error codes, read current information about vehicle systems, and perform many special tests.

VAG COM 409.1 (KKL) USB is a universal scanner for diagnosing VAG cars from 1996 to 2004 using the OBDII protocol. Russian-made vehicles are also supported.

ELM327 WiFi 1.5 is a diagnostic auto scanner that works with devices on Android, iOS and Windows.

A new generation universal OBD2 car scanner that supports the CAN diagnostic protocol. This model supports all OBD2 protocols and is compatible with many new car models.

Universal car scanner ELM327 version 1.5 for car diagnostics via bluetooth.

USB ELM 327 auto scanner for auto diagnostics of most modern cars.

Diagnostic OBDII scanner with CAN bus support, designed specifically for self-diagnosis of the car.

Professional multi-brand car scanner for diagnostics on passenger cars, trucks and commercial vehicles of most global manufacturers. The device is similar in its capabilities to professional car scanners Delphi and Autocom CDP+.

Autolink AL539 is a car scanner from Autel. Allows you to diagnose cars starting from 1996, equipped with an OBDII connector. Supports CAN bus. Additional functions include an oscilloscope and a multimeter.

The MaxiScan MS609 car scanner is a diagnostic device for cars manufactured in the American, European and Asian markets since 1996. (GM, Ford, Chrysler, Honda, Nissan, Volvo, VW/AUDI, BMW and Mercedes).

Scanmatic 2 USB + Bluetooth is a multi-brand scanner for full diagnostics of Russian-made cars: VAZ, GAZ, UAZ, Oka, ZAZ, Izh, KAMAZ, MAZ, PAZ, as well as: BYD, Chevrolet, Chery, Daewoo, Great Wall, Hyundai, Kia , Mitsubishi.

The Autolink AL319 scanner is an affordable scanner for detecting trouble codes (DTC) using the OBDII protocol.

The Autolink AL419 scanner is an affordable scanner for detecting trouble codes (DTCs) using the OBDII protocol.

The Autolink AL519 scanner is an affordable scanner for detecting trouble codes (DTCs) using the OBDII protocol.

Autel MaxiScan MS309 is a universal automotive scanner. The device operates using OBDII/EOBD protocols and is capable of diagnosing American, Asian and European cars manufactured since 1996.

Autel MaxiScan MS300 is a universal automotive scanner. The device works using the OBDII protocol and is capable of diagnosing cars made in America, Asia and Europe starting from 1996.

The best professional models

Autocom CDP Pro

An inexpensive, professional device that belongs to the latest generation of automotive scanners. It is capable of running any software on cars or trucks. It can transmit information to a personal computer or tablet, and the power of the Bluetooth module is quite significant - the coverage radius is 40 meters. Like all the models included in this review, it supports OBDII protocols. In addition to standard diagnostics, the user receives a large amount of additional information on how best to perform a particular operation. Everything is completely Russified, and quite high quality. The reliability of the device is evidenced by the lifetime warranty that the manufacturer gives it. Identification of the vehicle and the systems it supports occurs quite quickly. Software updates occur regularly and are absolutely free for the first year of use, after which you will have to pay for support.

The corresponding application is installed on a personal computer quite quickly. There is a built-in instruction (also in Russian) that explains in detail all the special functions. You can save the received data in both graphical and text modes. The product is perfect for both beginners and experienced craftsmen. It performs the same functions as more expensive products.

Advantages:

• High-quality Russification;
• Lifetime warranty;
• Works with a wide range of car brands;
• Long service life;
• Powerful Bluetooth module.

Flaws:

• You will have to pay additional fees for updates after the first year of product operation.

Autocom CDP Pro

Auto scanner ScanTronic R-Box

A special software and hardware device of a multi-brand type. Initially developed by the manufacturer to work with cars of American, Asian, European and domestic production. The software is installed on a laptop or regular computer, connected to them either via a Bluetooth module or via a microSD cable. According to the hardware design, the device is provided with a reliable and stable connection to the car, which is made using a special R-Box multiplexer. It is updated while you work, so you don’t have to be distracted by this process. The only thing required is to connect the device to a computer equipped with Internet access. This equipment cannot be considered as a full-fledged scanner with the characteristics of a dealer product, but in terms of its performance it is quite close to them. The model is provided with full access to vehicle diagnostic databases. Operating the device is quite simple.

The warranty period is 5 years, which already indicates the high reliability of the model. In their reviews, users talk about the design’s fairly convenient interface; they often mention that the product reads all indicators at a fairly high speed. The data is accurate - many owners specifically compared them with the performance of more expensive products.

Advantages:

• Free update;
• High quality workmanship;
• Long warranty;
• Reliability and accuracy of equipment;
• Russian-language interface.

Flaws:

• Quite expensive.

Auto scanner ScanTronic R-Box

BOSCH KTS 340

It has the widest functionality and compact overall dimensions. The form factor is a variant of a mobile tablet computer equipped with a touch screen with a decent diagonal, which allows you to receive all the necessary data directly near the car, rather than carrying a laptop to it or running to a stationary PC. Diagnostic results are displayed both graphically and digitally. Of course, you can identify diagnostic error codes and faults and delete them if necessary. Using this device, it is possible to test almost all actuators and diagnose systems such as ABS, EPS. When it comes to significant breakdowns, you can get all the necessary instructions related to performing repair work from the device. At the same time, it is convenient to receive this data directly near the vehicle and see with your own eyes exactly which elements need to be replaced.

The most thoroughly developed in this device, and this is quite natural, is the methodology for diagnostic work on diesel systems manufactured by Bosch, and they are found quite often - not only on foreign-made vehicles, but also on domestic vehicles of the brands KAMAZ, Gas, ZIL and some others.

Advantages:

• Very wide functionality, with which you can even remove the immobilizer lock and adjust the headlights;
• The touch screen diagonal is 8.5 inches;
• The scanner can independently determine the make of the car and its production date;
• Traditionally high German workmanship
• Deciphers all error codes in detail.

Flaws:

• Apart from the high cost, nothing was found.

BOSCH KTS 340

Priora connector

The main diagnostic connectors are OBD connectors. On earlier VAZ models, such as 2110, the OBD-1 connector was used. Currently, the most popular connector, which is used in all modern Lada models - OBD-2, has also been abandoned.

This diagnostic block in the Priora is located behind the glove box compartment; the scanner is connected to it.

Diagnostic kit Scanmatik-2

Diagnostic kit "Scanmatik-2"

There is also a Scanmatic-2 diagnostic kit available for free sale, which is quite suitable for the Granta connector circuit (a laptop is required). A diagnostic program is also included in the kit. On the manufacturer’s official website, the price for the set is 13,700 rubles. Car enthusiasts call this system the best for domestic cars. Suppose you need to do the diagnostics yourself. First, load the laptop and install the desired program. Next, connect the USB cable to the computer. Go to Windows Device Manager. A new COM port should appear there.

We are waiting for the Scanmatik diagnostic program to start. We set the above-mentioned port in its settings. We connect the adapter to the diagnostic connector using the OBD-2 cord (OBD-2 and USB cords are connected using the included adapter). The OBD cable indicator LED should glow green if the connection is established correctly. After connecting in the diagnostic program, you need to open the “Engine” tab and click on the “Auto-detection” button. The diagnostic program will search for the “brain” of the car engine.

Diagnostics

Priora diagnostics can be carried out at any service station. This allows you to identify problems with the engine, namely the culprit of the problem. It will help save money, time and effort to find the cause yourself or at random.

Such engine scanning at a service station is carried out with an expensive and advanced scanner, which is quite expensive. Checking the Priora ECU for errors in a specialized service will cost from 1000 rubles and more.

Apple iOS (iPhone/iPad)

Apple iOS (iPhone/iPad) supports Bluetooth LE (4.0) and Wi-Fi adapters. Adapters using classic Bluetooth (versions 1.x, 2.x, 3.x) cannot be used with Apple iOS devices due to limitations in the iOS operating system.

At the same time, Bluetooth 4.0 adapters have a number of advantages over Wi-Fi adapters:

Firstly, Wi-Fi adapters interfere with the mobile Internet (because your iPhone/iPad will try to access the Internet through the adapter's Wi-Fi network), but Bluetooth LE (4.0) adapters do not.

Diagnostics with ELM-327 scanner

Thanks to Chinese engineers, car diagnostics have become much easier and cheaper. Not long ago, a universal internal combustion engine scanner appeared on Chinese websites, which is suitable for almost all cars with OBD-2 connectors.

The ELM 327 scanner on the AliExpress website costs from 5 to 10 dollars, depending on the version.

This gadget is divided into two types and you should pay special attention to this when purchasing. ELM 327 works with our domestic cars only on version 1.5. Therefore, you need to purchase an ELM-327 v1.5 scanner. If you purchase version 2.1, then work with domestic cars is not guaranteed.

It should also be noted that this scanner only works in conjunction with a smartphone. If you have an Android smartphone, then you just need to buy a scanner with Bluetooth only.

If your smartphone is based on iOS, then you need to purchase a scanner with a Wi-Fi module, since Apple smartphones do not allow connecting third-party devices via Bluetooth.

Leading car scanner manufacturers

Today, there are a large number of devices available to users on the market. Diagnostic scanners can be useful not only for specialists in auto repair centers when clients bring a car for a technical inspection. Errors on the dashboard occur quite often, so diagnostic devices will help save valuable resources - time and money.

There are many Chinese and German-made devices on the market that offer excellent value for money. As a rule, the most reliable are German solutions from brands specializing in automotive equipment and more.

A striking example is the BOSCH company, which has long been a reliable supplier of excellent equipment for a variety of purposes.

Chinese devices are not lagging behind, the functionality of which is becoming more and more amazing every time. Today, a large number of Chinese car scanners are not inferior in quality to German devices, and the interface and menu of car scanners from China are now available in many languages, including Russian.

Diagnostic application

There are several really useful applications that can be used to perform high-quality car diagnostics.

OpenDiag Mobile

It is the main and most useful application for diagnosing domestic cars. This application is designed specifically for Russian-made cars.

Advantages and disadvantages

Pros:

• Decoding of all errors and a detailed description of the malfunction;
• Online engine monitoring;
• View misfires;
• Recording LOGs;
• Forced activation of fans and much more;

Minuses:

• Absence in the AppStore, that is, it is not suitable for iOS;
• Some ECUs are chargeable;

Car scanner ELM OBD2

Although this application was not tailored for domestic cars, it works very well with them. It is an alternative to open diagnostic for iOS.

Advantages and disadvantages

Pros:

• Free application;
• A large number of different functions;
• Online engine monitoring;

Minuses:

Fault codes and their interpretation

• 2 - overvoltage;
• 3 - malfunction of the device indicating the fuel level;
• 4 — the cooling temperature sensor does not work, the circuit may be broken;
• 5 - outside temperature sensor error;
• 6 - probable motor overheating;
• 7 — emergency oil pressure level;
• 8 - the brake system is faulty;
• 9 — battery is discharged;
• E - the error is contained in the data packet.

The diagnostic connector in a car is a fairly functional option. With its help, you can identify many problems that the owner did not even suspect about. Correcting all breakdowns in a car service center or with your own hands will significantly improve the performance of both the engine itself and the car as a whole.

An example of diagnostics using the ELM327 scanner

Below is an example of diagnosing a car with a scanner from AliExpress on version 1.5 using an Android phone and the OpenDiag application on a Lada Priora.

All manipulations with scanning the ECU must be carried out with the engine running or with the ignition on.

We connect the scanner to the OBD-2 connector and wait until the indicators blink.

Next, go to Settings/Bluetooth on your phone. There we find OBD II and pair it with it. When pairing, the device will ask for a password code - 1234 , this code is the same for all scanners.

The next step is to go to the OpenDiag application. Click on the menu button, select the connection type and check the Bluetooth ELM box.

Next, click on the button in the upper right corner and select our device, in this case OBD II. After this the connection will occur.

The connection process is complete, then you can speed up the application itself and familiarize yourself with its functions.

What is ELM327

ELM327 is a microcontroller (chip/chip) that converts OBD protocols used in vehicle diagnostic buses into the RS-232 protocol.

As it happens, to reduce prices, Chinese manufacturers began to simplify car scanners and replace the “native” ELM327 controllers. The main task of clones is to execute OBD AT commands.

This has led to applications configured for standard protocols implemented in the ELM327 not working as intended (but working). For example, instead of PIC18F25K80 (replacement for ELM327), such auto scanners use the STM32F042 CAN controller

It's all about the OBD-II PID

Car scanner ELM327 for car diagnostics: description, functions, programs

A car scanner is a device designed to diagnose various electronic systems in a car. With the advent of car scanners, car diagnostics have become a fairly quick and simple process. Modern car scanners based on the ELM327 controller are very compact, easy to use and provide fairly accurate results.

Using the ELM327 auto scanner, you can identify and eliminate some engine problems at an early stage, which will subsequently prevent serious breakdowns and significantly save the family budget.

It is also worth noting that, unlike classical diagnostics, the ELM327 auto scanner can be used by people who do not have professional knowledge in this field. Due to its ease of use, you can find thousands of positive reviews about this device on the Internet.

Description and main characteristics of the ELM327 auto scanner

A car scanner based on the ELM327 controller is a device that is a diagnostic adapter designed to read information from a car’s electronic control unit and eliminate minor problems in its “brains”.

The ELM327 autoscanner, in particular, can help in solving the following problems:

• Reading the values ​​of engine sensors and other electronic systems of the car;
• Identification of faulty sensors and diagnostics of devices for their correct operation;
• Reading and viewing fault codes;
• Resetting errors in the computer memory (turning off the CHEK ENGINE light).

We will tell you more about the capabilities of the auto scanner below in the review of diagnostic programs.

The ELM327 auto scanner is inserted into a special diagnostic connector, which is most often hidden under the fuse box cover, in the dashboard, or under the driver’s instrument panel. The diagnostic adapter communicates with the car’s computer using the OBD-II (On Board Diagnostic) protocol, but on the Internet it can most often be found under the name OBD2.

The OBD-II standard is supported by almost all American cars manufactured since 1996, and European cars since 2001 (diesel cars since 2004). But sometimes it happens that the auto scanner does not work on cars produced before 2003 - this is due to the fact that not all automakers immediately began to implement this standard.

In order to work with the ELM327 auto scanner you will need a reader with diagnostic software installed. Such a device can be a smartphone or tablet PC running Android, a laptop, or a desktop computer. The software is usually included with the auto scanner.

Depending on the type of execution, connection of the ELM327 autoscanner with a reading device is possible through:

1. Bluetooth;
2. Wi-Fi;
3. USB cable.

Diagnostic modes, OBD protocols for Lada cars

The adapter's task is reduced to decoding the incoming stream of data packets and converting them into a form accessible to external software. ELM327 works according to the protocol principle used in injection-type cars. The device receives information from the ECU data bus, processes it and sends it to a PC or smartphone.

Data exchange is carried out through several types of protocols:

• ISO 9141-2;
• Keyword Protocol 2000
• SAE J1850 PWM and VPW;
• ISO 14230-4 - modular system;
• ISO 15765 - CAN.

Lada cars with electronically controlled internal combustion engines use several protocols:

• CAN;
• K-Line;
• ISO 9141 (for individual units).

The fastest option is the CAN bus. The system can operate in duplex mode, which expands the functionality of the on-board electronics. However, we note: each protocol has its own set of diagnostic modes. The most extensive service is offered by the latest generations of tires. For Lada, the standard set of modes is:

1. Operational information from nodes.
2. Screenshot of engine parameters.
3. Errors recorded in the ECU.

It is possible to adjust the characteristics of the lambda probe for individual ECU modules and firmware.

Important:

Some ECUs do not support the full set of functions without the use of a dealer scanner.

Select the car model and year of manufacture to determine which diagnostic modes your car supports through the ELM327 adapter, as well as what protocol the OBD2 port is based on. The data is presented for the following Lada models and their modifications: Granta, Kalina, Largus, Niva, Priora, VAZ 2107, Vesta, XRAY and others.

Note:

(1) — The numbers between brackets (x3) correspond to the number of vehicles of the same type

(2) - DIN horsepower (multiplied by 0.736 for kW power)

(3) - PID is only supported for the primary oxygen sensor (#1)

• Mode X Column: A vehicle showing 00000000 in a mode means that the corresponding PID is not active and that as a result the mode is maintained but does not respond to any requests. None of the vehicles described below support Mode 8.
• Energy column: fuel type, Die for diesel, Pet for gasoline, Hyb for hybrid
• The vehicles on this list are classified alphabetically by make, model, then in order of increasing horsepower.

This mode returns common values ​​for some sensors, such as:

• engine speed;
• vehicle speed;
• engine temperature (air, coolant);
• information about oxygen sensors and air-fuel mixture.

This mode provides a freeze frame (or instantaneous) failure data. When the ECM detects a malfunction, it records sensor data at the specific point in time when the malfunction occurs.

This mode displays stored diagnostic trouble codes. These fault codes are standard for all car brands and are divided into 4 categories:

Car scanner ELM327 - description, instructions and reviews

pages:

1. ➡️ How the ELM327 diagnostic scanner works
2. ➡️ Scanner characteristics
3. ➡️ Review of scanner models based on ELM 327
4. ➡️ Features and functions of the ELM 327 scanner
5. ➡️ Instructions based on the example of Scan Tool Pro Bluetooth
6. ➡️ Car list and compatibility
7. ➡️ Reviews, summing up, what to buy

ELM327 Bluetooth (Wi-Fi or USB) car scanner is a device designed for scanning and diagnosing vehicle parameters , detecting faults, reading and correcting problems in the computer and engine. The device operates via a smartphone or PC. Also, such scanners monitor the condition of sensors, engine and other components interacting with the on-board computer or control unit (ECU) of the car.

Self-diagnosis has become a trend in recent years. ELM327 Bluetooth scanners for car diagnostics gained popularity in 2015-2018.

The main reason for the demand for Bluetooth adapters for car diagnostics in Russian is the cost savings on car maintenance, since such a service at a service station costs from 500 rubles to 8,000 rubles, depending on the malfunction, so the device pays for itself in 3-4 visits to a car service center.

This article provides an overview of the ELM327 Bluetooth car scanner - prices, models, manufacturers, reviews, as well as characteristics, photos and videos, describes the principle of operation of the gadget, and provides detailed instructions.

Attention:

All reviews are real, you can read them yourself on the site. Comments are also presented at the end of the article and on the official website.

About the elm327 scanner “SCAN TOOL PRO” on the DRIVE2 auto portal:

Device and diagnostics using a wireless Bluetooth auto scanner

Before you buy an ELM327 Bluetooth adapter, let’s get acquainted with the technical side of the issue and consider everything in order. What are ELM327 auto scanners? In fact, this is the name of the microcircuit. The controller was developed by the Canadian company ELMEelectronics. The internal architecture of the chip reads and converts protocol data from cars of any brand into a code that is decrypted by the program.

To read information, you need to receive it and then convert it; this is exactly why you need an OBD II controller - a “bridge” between the on-board computer/ECU of the car and the adapter ver. 1.5 ELMЗ27.

Types of ELM327 auto scanners and which one is better to buy

Before you buy an ELM327 Bluetooth, you need to know in advance its firmware number, protocol, and also what you plan to use to scan the car. If you have a smartphone on Android or iOS, then you can purchase a wireless option: the elm327 bluetooth or Wi-Fi auto scanner. If you don’t have a smartphone, it’s safer to use a USB device via a computer.

The table shows a list of modifications of diagnostic wireless adapters for cars, as well as a version with a wire. It’s not difficult to navigate the OBD II ELM 327 adapter models; the names speak for themselves.

No. Models of the diagnostic auto scanner ELM327 Functions of the diagnostic auto scanner ELM327 Bluetooth Data transfer List of cars By protocol Scanner firmware

It is important to know:

Firmware version 2.1 is a modification of the microcircuit version 1.5, but it was not made by the developer, so for error-free compatibility, it is recommended to buy a scanner version 1.5.

Autodiagnostics and review of modern Scan Tool Pro scanners in Russian

In the Russian market of equipment for car diagnostics, elm327 Bluetooth scanners have become very popular: Scan Tool Pro, Smart Scan Tool, Roadgid S6 Pro, Vgate.

The models are translated into Russian, as is the software for them. The diagnostic scanner is based on the ELM-327 chip, and the data is transmitted via the OBD2 protocol.

Models are sold with Bluetooth or Wi-fi support.

Before you buy a scanner for car diagnostics, Scan Tool Pro, read a detailed review of the device on our portal, or follow the link to the official website to order and check compatibility.