Home Generator Pulling board. OBD2 pinout connector. Independent manufacture of connecting cable

Pulling board. OBD2 pinout connector. Independent manufacture of connecting cable

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You can also get acquainted with the pinout diagnostic connectors

renault diagnostic connector

diagnostic connector Opel

diagnostic connector KIA

Currently, the overwhelming number of foreign cars, as well as domestic production cars have an OBD2 diagnostic connector. Through this connector, you can connect diagnostic equipment to diagnose your car, as well as connect onboard computers and other devices running through a diagnostic block. Sometimes users have a question on the pinout diagnostic pads of certain car brands. For your convenience, we offer ready-made adapters to work with various diagnostic blocks of cars. However, if you forgot to purchase an adapter for your car or you needed it in emergency to make it, or connect the adapter directly, then in this article you will find information about the pilot of the OBD 2 pads, as well as cars of Russian and imported production.

Plifunction of the OBD 2 pads (the most dispersed version in foreign cars since 2002, as well as is installed in all VAZ cars after 2002 G.V.):

Contact Designations:

7-K-line of diagnostics

4/5 - GND protruding contacts

16 - power adapter + 12V

Plotchka VAZ pads until 2004:

Contact Designations:

M - K-line diagnostics

H or G - Power Adapter + 12V

When connecting the adapter without a pad directly to wires, the power is better to take from the cigarette lighter, since the contact is shown in Figure H, depending on the model, may not be divorced, and when using G, the fuel pump gives very large impulses that can damage the adapter.

(In 99% of cases, you can use the indicated contacts because damage to the adapters from the fuel pump is practically not found.)

Gas connector (Gazelle) UAZ

Contact Designations:

2 - power adapter + 12V

12 - Massa

10 - L-line of diagnostics (may not be divorced, as a rule is not used)

11 - K-line diagnostics

Pinout pads Daewoo Nexia. N100, Matiz, Chevrolet Lanos, Zaz Chans:

M - K Connector - Diagnostic Line

Connector A - Mass

H - + 12V connector (voltage in this jack may be missing on some models of cars)

Connector G - + 12V from ignition lock (possibly lack of voltage when the ignition is turned on and the engine unused on some car models

If you are interested in the location of the diagnostic pad in your car, as well as the pinout of the diagnostic block of car other brands. You can familiarize yourself with them through a systematized directory of diagnostic adapters. Download the bulk of the car pad.

Pickup OBD2 Connector - All cars issued in recent years, equipped with all sorts of electronic devices. One of important devices The system is considered to perform the diagnostics of the equipment installed in the car. The design of this device includes the OBD2 connector, which was constructed in nineties. Its main purpose is the ability to connect the scanner. In addition, it can be measured to measure the onboard voltage, the temperature component, speed, as well as other parameters. Moreover, all this can be performed directly during the operation of vehicles.

As a rule, the OBD2 connector socket is installed in the car near the steering column (the distance is approximately 180 mm). Parametric characteristics of the connector allow you to create an exchange of information data using an industrial digital CAN bus. It is using the CAN protocol that you can connect various control devices, all kinds of sensors and mechanisms. Moreover, you can simultaneously receive and transmit data in a digital format at high speed, there is also a function of interference protection.

Connector design

Functionality I. pickup OBD2 Connector Made in two component scheme without symmetry and will include sixteen shore contacts. These contacts are located in a block parallel to each other with a key guide. Their numbering in the block is performed on the left side to the right, while the upper line of contacts is indicated by numbers from 1-8, and another row from 9-16. The design of the connector is made of durable plastic, and the contacts themselves share a special longitudinal plate.

To implement the correct polarity when connecting the "Pope" connector to the "Mom" socket, a design in the form of a trapezoid with a somewhat rounded corners is provided. Functions of contacts in the connector have two groups of destination. One of which is made according to the standard scheme, and the manufacturer's other group is entitled to use at its discretion, to perform certain tasks.

Spack OBD2 Connector With the definition of the function of each contact is shown in the table below:

1 Corporate
2 Tire J1850.
3 Corporate
4 Grounding General
5 Signal land
6 Tire Can.
7 Line K software ISO 9141-2
8 Corporate
9 Corporate
10 Tire J1850.
11 Corporate
12 Corporate
13 Corporate
14 Tire Can.
15 Line L according to ISO 9141-2
16 +12 B.

The distinctive feature in the design of the OBD2 connector lies in the fact that it has a connections socket on-board network. And this makes it possible to use scanners without resorting to the use of an additional power supply chain. Since the appearance of the first OBD2 connectors, which were capable only to display information about the existing problem, much has changed. To date, improved connectors have the opportunity to extract maximum problems of problems. This is due to the connection of diagnostic devices with electronic modules in the car.

How to make a connecting cable

Sometimes there is a need for the manufacture of a connecting wire, it may happen when you need to connect a device for diagnostics to a car. Therefore, as it is impossible, the values \u200b\u200bspecified in the table will help here.

OBD2 Scanner on Ssandyong New Actyon

Over time, the appearance of electronic control systems from microprocessors has also had the need to verify the parameters of the work of the blocks and connecting electrical circuits. For this purpose, the equipment received (On Board Diagnostic) was invented, initially he only issued only malfunction information, without any refinements.

IN modern cars Using the OBD connector with a standard pinout connector for diagnostics to an on-board computer, you can connect a special or scanner and conduct full diagnostics yourself with almost any motorist. Since 1996, the second concept of the standard has been developed in the United States, which has become mandatory for newly produced cars.

Purpose OBD2 Determine:

type of diagnostic connector;

pinout connector for diagnostics;

electrical communication protocols;

message format.

In the European Union, EOBD is accepted, which is based on OBD2. He is obligatory for all cars since January 2001. OBD-2 supports 5 data exchange protocols.

Knowing the location and standard pinout of the connector, you can check the car yourself. Due to the widespread implementation of OBD2, when diagnosing a car, you can get an error code that will be the same regardless of the brand and auto model.

The standard code comprises a structure of X1234, where each character carries its semantic load:

X is the only letter symbol that allows you to find out the faulty system (engine, box, electronic blocks, etc.);

1 is a common OBD2 standard code or additional plant codes;

2 - refinement of the fault location (power system or ignition, auxiliary chains, etc.);

34 - the sequence number of the error.

The discharge of the OBD2 diagnostic connector has a special power plug from the on-board network, it allows you to use any scanners and adapters without additional electrical circuits. If earlier the diagnostic protocols showed only general information about the presence of any problem, now, due to the connection of the diagnostic device with electronic blocks Car can be considered more complete information about a particular malfunction.

Each plug-in diagnostic equipment necessarily complies with one of the three international standards:

The location of the Diagnostic Connector with the OBD2 pinout for diagnostics can be very different in various cars. There is no single standard for the location, here you will help the instruction manual for the car or hand dexterity.

Below are several common points for the convenience of search:

  • in the slots of the lower casing of the instrument panel in the area of \u200b\u200bthe driver's left knee;
  • under the ashtray installed in the central part of the instrument panel (some Peugeot models);
  • under plastic plugs on the bottom of the instrument panel or on the central console (characteristic of the production of the concern VAG);
  • on the back wall of the instrument panel behind the body of the glove box (some Lada models);
  • on the central console in the area of \u200b\u200bthe lever parking brake (meets on some machines
  • at the bottom of the armrest niches (distributed in French cars);
  • under the hood near the engine shield (characteristic of some machines of Korean and Japanese production).

Many motorists also sometimes deliberately transfer the OBD2 pinout connector to another is not always a standard place, it may be associated with the repair of electrical wiring or with the protection of the car from the hijacking.

Types of connectors with discharge OBD2

In early 2000, there were no stringent requirements for the outdoor uniform of the connector, and many automakers independently assigned the device configuration. To date, there are two types of OBD 2 connector, indicated as type A and type V.

Both plugs are almost the same externally and have a 16-pin yield (two rows of eight contacts), the difference consists only between the central guide grooves.

The numbering of pins in the block is conducted from left to right, while in the upper row there are contacts with numbers 1-8, and in the bottom - from 9 to 16. The outer part of the housing is made in the form of a trapezoid with rounded corners, which ensures reliable connection of the diagnostic adapter. In the photo both variants of devices.


Multi Connector - Type A On Left and Type B Right

OBD 2 connector - pinout

Below is a diagram and assignment of contacts in the OBD2 pinout connector, which are defined by the standard.


Plug numbering in the connector

General description of plugs:

1 - backup, any signal can be displayed on this PIN, which will install a car manufacturer;

2 - channel "K" for transmitting different parameters (can be designated - J1850 bus);

3 - similar to the first;

4 - grounding the connector on the car body;

5 - grounding of the diagnostic adapter signal;

6 - Direct connection of the contact of the CAN bus J2284;

7 - Channel "K" according to ISO 9141-2;

8 - similar to contacts 1 and 3;

9 - similar to contacts 1 and 3;

10 - PIN connection of the Tire of the J1850 standard;

11 - Pins assignment is given by the car manufacturer;

12 - similarly;

13 - similarly;

14 - Additional PIN CAN-Tire J2284;

15 - Channel "L" according to the ISO 9141-2 standard;

16 is a positive output of the on-board network (12 volts).

An example of the factory pinout OBD 2 connector can serve as a hendai of the sonata, where the signal is sent to the PIN 1 from the control unit of the anti-lock system, and on PIN 13 - a signal from the control unit and sensors of inflatable airbags.

Depending on the protocol of the work, the velocities are allowed:

When using the standard ISO 9141-2 protocol, it is activated through PIN 7, while Pins 2 and 10 in the connector are inactive. For data transfer, conclusions are applied with numbers 4, 5, 7 and 16 (sometimes PIN number 15 can be activated).

With the SAE J1850 type protocol in VPW (VPW (VPW) Pins 2, 4, 5 are involved, as well as 16. The connector is characteristic of American and European cars General Motors.

Using J1850 in PWM mode (Pulse width modulation) provides additional transition to output 10. This type of connector is used on the products of the Ford Concern. For the J1850 protocol, in any form, the non-use of the output with the number 7 is characteristic.

Of course, for many, similar schemes and descriptions of the opening of the OBD2 connector are very complex and unnatural. Often, motorists prefer to periodically give their cars to the profile car service and do not even think about the diagnostic connectors and, moreover, about their paintings. But still it is worth recognizing utility self-diagnosis. Experienced motorists It is suggested that to have a diagnostic scanner in the car requires each car owner to promptly check its doubts in the operation of the machine, checking errors, settings and the like that first save considerable money.

The obvious advantages of self-diagnostics through the OBD2 connector:

  • Saving funds, one hundred take big money for a simple computer diagnostics
  • Prior to the error and understand the malfunction without the help of specialists, you do not need to be nervous in a hundred and you can avoid invented breakdowns, as often happens in unscrupulous services.

Good luck to you on the road and in the diagnosis of the car!

Since 1996, it became necessary to check for compliance with OBD standards all produced cars. This was caused by the requirement of control over the environmental situation. Short description Devices for control, location, functions further in our article.

Brief description of the device for control

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Designation pickup OBD. - 2 Use to verify compliance with the standard during diagnostics and monitoring of engine engines and units installed on the chassis. The device is made in the form of a diagnostic connector, to connect devices that produce control over the exhaust gases and the work of the car without interruptions. PickupBD-2 is a set of requirements that all automakers must perform.

Mandatory finding the connector in the cabin is required at a distance of at least 18 cm from the steering column. Universal system for all cars, has a standard digital SAN protocol that allows you to take data in any time. You can make detailed identification of different problems in the machine.

When diagnosing import machines, the addition lines K - LINE and L - LINE are used, as well as digital methods of transmitting indicators - San.

The controlling function is supported by sixteen contacts:

  • contact number one - it is installed at the factory - manufacturer;
  • the second refers to the tire J 1850;
  • number three also puts the automaker;
  • fourth - to control grounding contacts of the car - chassis;
  • number five controls the undergoing network of the signal line;
  • contact at number six is \u200b\u200bresponsible for san digital bus;
  • number seven - ISO 9141 - 2, K - LINE;
  • eight and nine installed automaker;
  • the tenth controls the Sanj 1850 bus;
  • the rooms are eleven, twelve and thirteen are also installed on the automobile plant;
  • contact number fourteen controls the SANJ 2284 bus;
  • fifteen - ISO 9141-2, L - LINE;
  • the sixteenth controls the battery voltage.

OBD Adapters - 2 Diagnostic Connector

All brands must be equipped with the OBD diagnostic adapter - 2. It is used in the diagnosis of auto independently or in service centers. Adapter is convenient for:

  • diagnosing all auto units;
  • analysis of errors and the state of the run;
  • observation of engine operation;
  • by voltage;
  • temperature;
  • speed;
  • state of panel instruments;
  • you can track the average and current fuel consumption;
  • the degree of engine warming;
  • control the trips.

The adapter can be connected to laptops, computers, phone numbers. It is suitable for connecting to the systemOBD - 2 and all programs that extends their own requirements of OBD 2 pinout. Connection is made by a USB cord, bluetooth or Wi - Fi. With the adapter, you can check the cars of all kinds of import and domestic manufacturers.

The functions of the connector that are covered by OBD - 2

The main function of the OBD - 2 connector is to communicate the scanning device with control blocks. The pinout provides for the connection of automotive power supply and grounding for successful work. car scanner, without connecting a special supply block. Choosing a scanner, you should learn about its capabilities. The higher its price, the more accurate will be the test. If it is not possible to purchase an expensive device, you need to choose a scanner made precisely under this car brand.

The pinout allows the driver to combine his car with a block of diagnostic OBD - 2.

If the inconsistency is detected, the Checkengine signal appears with certain requirements of the composition of the exhaust gases, calling the engine operation, and the light signal will turn on. This is the warning of the indicator about exceeding the amount of malicious gases.

With the help of the OBD 2 system, the sprinkling is monitoring vital important parameters, the main of which is clean air. The presence of the connector makes it possible to track the degree of condition of the car without qualified expensive help.

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