Equipped with OBD2 diagnostic connectors. Using it, the car owner can connect to the control unit and find out about all possible problems that exist in the operation of certain units. You can find out what the OBD2 diagnostic connector pinout is and what the diagram looks like from this article.
[Hide]
Description of OBD2 technology
The abbreviation OBD from English literally stands for diagnostics of on-board equipment. This concept is general and refers to the vehicle's self-diagnosis system. Thanks to OBD technology, the car owner can receive detailed information about the state of various car systems from the control module.
Initially, OBD technology was used to issue messages about problems in the operation of the engine and other units, but did not provide specific data. Over time, cars began to be equipped with digital connectors, which provide the most accurate information about system malfunctions. Accurate information about malfunctions is provided by error codes.
History of creation
OBD technology dates back to the 50s of the last century. Then the US authorities thought about protecting the environment, since filling the continent with vehicles led to its deterioration. The technology was developed by the Society of Automotive Engineers. At first, it only allowed for monitoring the operation of the exhaust gas recirculation system, fuel supply, operation of the lambda probe, control module, etc. In general, everything that technology controlled was related to exhaust gases in one way or another.
At that time, there was no unified control system, so all automobile manufacturers used their own technologies. Several decades later, in 1996, the government created another OBD2 concept, its installation was mandatory on all vehicles. In European countries, the EOBD standard has been adopted, which is based on OBD2 technology. In the EU, this standard was introduced for all cars produced after January 2001 (video filmed by the Mr Emelya channel).
Important pinout points
The OBD2 connector pinout is a list of requirements that must be met by all vehicle manufacturers without exception. In accordance with international standards, this connector should be located no further than 18 cm from the steering wheel. This system is considered universal because it works with a standard digital protocol, with which you can obtain detailed data about problems with the car.
As for the pinout itself, the connector itself is equipped with 16 pins, the pinout is as follows:
- Determined by the vehicle manufacturer.
- This pin communicates with the J1850 bus.
- This contact is also determined by the car manufacturer.
- Monitors the grounding of vehicle contacts.
- Designed to control the grounding component of the signal line network.
- This contact is connected to the digital CAN bus.
- Communication with K-Line or ISO 9141.
- Likewise, the manufacturer sets it.
- Used to monitor the operation of the CANJ 1850 bus.
- The purpose depends on the car manufacturer.
- It is also established by companies when releasing a car.
- Determined by the car manufacturer.
- Designed to monitor the CANJ 2284 bus.
- Used to provide communication with L-line or ISO 9141-2.
- Contact associated with the car battery (video author - shlepanovan channel).
OBD2 adapter
Every modern car has this connector.
It can be connected to an adapter that can be used to perform the following functions:
- checking the condition of all systems and components of the vehicle;
- finding errors and analyzing them;
- monitoring the engine operation process as a whole;
- monitoring the voltage level in the car’s electrical network, its mileage, and engine operating temperature;
- control of fuel consumption volume, etc.
Photo gallery “Scanners for OBD2”
When buying a diagnostic scanner, you need to take into account its functional features and capabilities. To obtain more accurate data on the operating status of machine systems, you need to use more expensive adapters for testing. If you do not want to spend money on a universal device, then it is better to give preference to an adapter designed for a specific car model. Their cost will be lower, and they are initially designed to work with a specific vehicle.
The OBD2 output is used to connect the adapter with the electronic control module. Thanks to the correct pinout, the adapter is connected to the vehicle's on-board network and the device is grounded. This allows you to achieve uninterrupted operation of the device. It should also be noted that the protocols of this technology control parameters that in one way or another affect the pollution of exhaust gases, which makes it possible to protect the environment. Using the OBD output, a car enthusiast can independently test the performance of the units and systems of the car without using expensive testing equipment.
A modern car is full of various electronic systems, one of which is the on-board equipment diagnostic system. When building such a system, it uses an obd2 connector, standardized in 1996 and most often used to connect a scanner. It can also be used to analyze such current parameters as voltage, temperature, speed and similar ones, including directly during the current operation of the vehicle.
Obd2 appearance
According to the requirements of regulatory documents, the obd2 connector socket is located in the passenger compartment next to the steering wheel (distance of at least 18 cm). The electrical characteristics of the connector are sufficient to organize information exchange using a digital industrial CAN bus (maximum number of nodes – 32, maximum cable length – 35 m).
Connector design
From a mechanical point of view, the obd2 connector implements a two-component asymmetrical design and contains 16 contacts, which are arranged in two rows. The contacts in the socket are numbered from left to right, with the top row numbered from 1 to 8, and the bottom row from 9 to 16. The plug and socket housings are made of plastic; to increase operational reliability, a thin separator plate is provided in the socket between the rows of contacts.
To automatically set the correct polarity when connecting, the cross-section of the plug and socket housings is trapezoidal in shape with rounded corners.
The connector contacts form two groups according to their purpose. The first of them is standardized; each manufacturer can use the contacts of the second group to solve their problems.
Numbering and assignment of obd2 connector pins
Obd2 connector pinout indicating the purpose of individual contacts is given in the table.
| 1 | Branded |
| 2 | J1850 bus |
| 3 | Branded |
| 4 | General grounding |
| 5 | Signal ground |
| 6 | CAN bus |
| 7 | Line K according to ISO 9141-2 |
| 8 | Branded |
| 9 | Branded |
| 10 | J1850 bus |
| 11 | Branded |
| 12 | Branded |
| 13 | Branded |
| 14 | CAN bus |
| 15 | Line L according to ISO 9141-2 |
| 16 | +12 V |
Making your own connecting cable
The need to make or repair the connecting cable yourself may arise when connecting a diagnostic tool to the vehicle’s on-board computer network. For this purpose, the data given in the table is used. The cable wires are connected to the contacts of the plug and socket by soldering in compliance with the usual rules in such cases. After soldering, the contact can be additionally protected with a short cambric.
Obd2 connector pinout— all cars produced in recent years are equipped with all kinds of electronic devices. One of the important devices is considered to be a system for performing diagnostics of equipment installed in a car. The design of this device includes an OBD2 connector that was designed in the nineties. Its main purpose is the ability to connect a scanner. In addition, it can be used to measure on-board voltage, temperature component, speed, and other parameters. Moreover, all this can be done directly while operating the vehicle.
As a rule, the obd2 connector socket is installed in the car near the steering column (the distance is approximately 180 mm). The parametric characteristics of the connector allow you to create an exchange of information data using an industrial digital CAN bus. It is with the help of 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 digital format at high speed, and there is also an anti-interference function.
Connector design
Functionality and obd2 connector pinout made according to a two-component circuit without symmetry and includes sixteen knife-shaped contacts. These contacts are located in the block parallel to each other with a guide key. Their numbering in the block is done from left to right, with the top line of contacts indicated by numbers 1-8, and the other row with 9-16. The connector design is made of durable plastic, and the contacts themselves are separated by a special longitudinal plate.
To ensure correct polarity when connecting the male connector to the female socket, a trapezoidal design with slightly rounded corners is provided. The functions of the contacts in the connector have two groups of assignments. One of which is made according to a standard design, and the manufacturer has the right to use the other group at his discretion to perform certain tasks.
Wiring obd2 connector with the definition of the function of each contact is shown in the table below:
| 1 | Branded |
| 2 | J1850 bus |
| 3 | Branded |
| 4 | General grounding |
| 5 | Signal ground |
| 6 | CAN bus |
| 7 | Line K according to ISO 9141-2 |
| 8 | Branded |
| 9 | Branded |
| 10 | J1850 bus |
| 11 | Branded |
| 12 | Branded |
| 13 | Branded |
| 14 | CAN bus |
| 15 | Line L according to ISO 9141-2 |
| 16 | +12 V |
A distinctive feature in the design of the obd2 connector is that it has a socket for connecting the on-board network. And this makes it possible to use scanners without resorting to the use of an additional power supply circuit. Since the advent of the first obd2 connectors, which were only capable of displaying information about an existing problem, a lot has changed. Today, advanced connectors have the ability to extract maximum information about problems. This happens due to the connection of diagnostic devices with electronic modules in the car.
How to make your own connecting cable
Sometimes there is a need to make a connecting wire; this may happen when you need to connect a diagnostic device to a car computer. Therefore, the values indicated in the table will help here in the best possible way.
OBD2 scanner for SsandYong New Actyon
Autocom is a modern diagnostic tool that serves as a link between the car and the computer. It works on old and new cars. With it you can diagnose cars starting from 1988. In total, almost 50 different car brands are supported.
Connector pinout diagrams
Many people are faced with the problem of pinouting cables for trucks, so edition 2 of the Scheme has compiled a complete collection of pinouts and connections for such cables.
Autocom Cable Sets
There are universal kits on sale, for example, a set of Autocom CDP+ Trucks diagnostic cables - used to connect the Autocom CDP+ scanner to trucks with old-style diagnostic connectors.
List of cables included in the kit:
- Diagnostic cable Autocom - Knorr, Wabco Trailer 7 pin
- Diagnostic cable Autocom - MAN 12 pin
- Diagnostic cable Autocom - MAN 37 pin
- Diagnostic cable Autocom - IVECO 30 pin
- Diagnostic cable Autocom - SCANIA 16 pin
- Diagnostic cable Autocom - Mercedes-BENZ 14 pin
- Diagnostic cable Autocom - Renault 12 pin
- Diagnostic cable Autocom - VOLVO 8 pin
With the TRUCKS software package, you are able to perform brand-specific diagnostics for light and heavy commercial vehicles, buses and trailers since 1995. A total of 37 different brands.
Description of the Autocom program
List of supported ECUs:
Engine diagnostics using OBD2 protocol
- engine diagnostics using factory protocols
- diagnostics of electronic ignition systems
- diagnostics of climate control systems
- diagnostics of immobilizers
- diagnostics of transmission control systems
- diagnostics of ABS systems
- diagnostics of SRS Airbag systems
- dashboard diagnostics and service interval reset
- diagnostics of comfort systems
- diagnostics of body electronics systems
The GENERIC diagnostic program is a standards-based diagnostic program specifically designed to link and standardize fault codes. GENERIC is included for car and truck variants.
Protocols and standards 2xHS CAN (ISO 11898-2), SW CAN (SAE J2411), K/L (ISO 9141-2), VPW (J1850), PWM (J1850), RS485 (J1708), TTL and (SPI, analog in, 5volt out).
With the onboard recorder feature, you can record parameters in real time while the vehicle is moving. While recording, you can, with the press of a button, highlight and remember a specific error for the purpose of studying it later. TCS CDP+ is equipped with built-in memory, eliminating the need for a computer. Memory is not included.
With the Autocom multi-color indicator, you have complete control over the diagnostic process. Different colors and sound prompts will indicate to you which diagnostic stage is currently running. For example, if the indicator switches between blue and green, it communicates with the vehicle's control unit.
When Autocom is connected to a vehicle, the device will check the vehicle's onboard voltage and automatically adjust to the vehicle's 12 or 24 volt voltage level. If the voltage gets too high or too low, Autocom will alert you with both an audible prompt and an indicator light, as well as an alert via the battery icon in the software.
The software has a feature that allows you to read the chassis number from the vehicle you would like to diagnose. This ensures that the model and year are selected automatically. In addition, the engine code for vehicles that are usually available for reading is also automatically selected.
The Intelligent Scanning System (ISS) scans all the systems in the vehicle and displays the fault codes that are stored in each system. This saves time and gives you a quick overview of the current condition of the vehicle as a whole. Once the ISS is completed, you can select a dedicated management system to analyze the results further.
Intelligent System Identification (ISI) detects and automatically selects the type of controller that is installed in the vehicle. This ensures that the diagnostic session is completed correctly with the correct parameters as required.
According to this feature, you will be able to see the adaptations and adjustments that are possible for a particular vehicle without having the vehicle near you. Together, using the texts as a guide, you can plan and be effective in your work, even in difficult situations.
The Autocom car scanner is equipped with a unique multiplexer technology, which allows it to be used on all types of vehicles, regardless of voltage level and communication standards. For those vehicles that do not use a standard 16-pin connector, it is possible to connect special adapter cables.
Video instruction
The Tech Site about Most Popular Mobile Phones and their specs,
camera reviews, dxomark scores, geekbench results, price comparison, color options samsung galaxy s10 plus specs.
also, of course, so, in the other hand, besides last minutes videos from apple, meizu, google.
also, of course, so, in the other hand, besides dxomark reviews, antutu scores, geekbench
results and dxomark scores of Snapdragon 625 Huawei Kirin 990, mediatek mt6750, Huawei Kirin 980,
a12 bionic, samsung exynos 5430. select most popular phone of 2020.
Google Pixel 4, Apple iPhone Xs Max, galaxy a40, samsung galaxy a50, Oneplus 6t, xiaomi mi 9, galaxy
a40, oppo reno z,
curry 6 shoes wrote
in the article
I simply desired to thank you very much all over again. I am not sure the things that I would have used in the absence of the basics revealed by you directly on my area. Completely was a very troublesome difficulty in my circumstances, but looking at the tactic expert you managed it made me to cry over delight. I"m just grateful for your assistance and thus trust you recognize what a great job you are always doing instructing many others by way of your website. Most probably you haven"t encountered all of us.
curry 6 shoes http://www.curry-6.us
Thank you so much for giving everyone an extraordinarily memorable chance to read articles and blog posts from here. It is often very pleasant and packed with a lot of fun for me and my office mates to search the blog on the least 3 times weekly to see the newest secrets you have got. Of course, I"m also usually fulfilled considering the beautiful guidelines you serve. Certain 1 tips in this posting are completely the best I have ever had.
nike air max http://www.airmax-270.com
My spouse and i were really more than happy that Louis could do his preliminary research because of the precious recommendations he acquired in your website. It is now and again perplexing to just be freely giving information which some other people may have been making money from. We really take into account we now have you to appreciate for that. The specific explanations you have made, the easy web site menu, the relationships you will aid to create - it is mostly superb, and it "s really letting our son in addition to the family feel that this subject matter is excellent, which is certainly very serious. Thank you for the whole lot!
michael kors factory outlet online http://www.michaelkorsfactorystore.com
balenciaga shoes wrote
in the article Pci ven 168c dev 0036 subsys 2 ...
I am also commenting to let you be aware of what a wonderful encounter my wife"s princess found going through your blog. She discovered many issues, most notably how it is like to possess a great teaching mood to let a number of people easily have an understanding of a variety of multifaceted things. You actually did more than people's expectations. Thank you for providing the practical, trusted, informative as well as cool tips about this topic to Gloria.
balenciaga shoes http://www.balenciagashoes.us.org
I wanted to write you the little remark just to give thanks over again for your great thoughts you"ve featured in this article. This has been certainly shockingly open-handed with people like you to allow easily precisely what numerous people could possibly have distributed for an e book to help with making some money for their own end, principally considering that you might have done it in case you desired. These tactics likewise worked to provide a good way to be aware that someone else have a similar dream just as mine to figure out a lot more on the subject of this condition. I am certain there are millions of more periods pleasant ahead for many who look into your website.
fila http://www.fila.us.org
I have to express my love for your kind-heartedness giving support to people that have the need for help with this one area. Your very own dedication to passing the solution all around became exceedingly effective and has regularly encouraged others just like me to realize their targets. Your personal insightful recommendations can mean a whole lot to me and a whole lot more to my mates. Thanks a lot; from everyone of us.
yeezy shoes http://www.yeezyadidas.us.com
I wanted to create you that very little word to give many thanks yet again for these nice principles you"ve documented on this website. This has been simply pretty generous with you to make easily all that a number of people could have distributed for an electronic book to earn some bucks for their own end, most importantly given that you could have tried it if you ever wanted. These tactics also acted to be a great way to recognize that most people have a similar passion much like my very own to understand very much more on the topic of this matter. I am certain there are lots of more enjoyable times up front for individuals that look over your site.
christian louboutin http://www.christianlouboutinbar.com
adidas nmd wrote
in the article Pci ven 168c dev 0036 subsys 2 ...
Thank you a lot for giving everyone such a wonderful opportunity to discover important secrets from this website. It"s usually so useful and also full of amusement for me and my office mates to visit the blog on the least 3 times every week to see the latest issues you will have. Of course, we"re actually happy with the extraordinary hints served by you. Certain 3 ideas in this post are certainly the simplest we have had.
adidas nmd http://www.adidasnmdr1.us.com
I not to mention my guys were actually looking through the nice pointers from the website and then quickly developed a terrible suspicion I had not respect expressed to you for those secrets. All of the women came so very interested to study all of them and have now actually been using those things. Thanks for being quite thoughtful as well as for settling on this kind of incredible millions of themes of individuals are really desirous to be informed on. Our own honest regret for not expressing appreciation to earlier.
jordan shoes http://www.jordan13.us.com
I am just writing to let you understand what a fabulous experience my friend's daughter had using the blog. She realized lots of issues, which include how it is like to have an amazing coaching character to make many others smoothly have an understanding of some tortuous matters. You truly did more than our own expectations. Thank you for offering such practical, trustworthy, edifying and as well as easy guidance on your topic to Kate.
stephen curry shoes http://www.stephencurry.us.com
goyard handbags wrote
in the article Pci ven 168c dev 0036 subsys 2 ...
I not to mention my pals came studying the excellent items on your website then then came up with a horrible feeling I never expressed respect to the site owner for those strategies. All of the people are already certainly passionate to read them and now have in reality been making the most of them. Many thanks for sincerely well consider and then for getting such superior areas most people are really needing to understand about. My honest apologies for not saying thanks to sooner.
goyard handbags http://www.goyardhandbags.us.com
louboutin wrote
in the article Pci ven 168c dev 0036 subsys 2 ...
I in addition to my pals appeared to be reviewing the good information located on your web blog then all of a sudden I had a terrible feeling I had not thanked you for them. All the boys ended up absolutely thrilled to read them and have now very much been taking pleasure in these things. Many thanks for getting considerably consider and then for opting for this kind of ideal subjects most people are really wanting to be aware of. My personal sincere apologies for not expressing gratitude to sooner.
louboutin http://www.louboutins.us.com
I must express my respect for your kindness giving support to men and women who really want guidance on your question. Your very own dedication to getting the message all through has been quite good and have frequently made girls like me to realize their desired goals. Your important key points means a whole lot to me and a whole lot more to my office colleagues. Warm regards; from everyone of us.
reebok outlet http://www.reebokoutlet.us.org
I am just commenting to make you understand of the incredible encounter my cousin"s child undergone visiting your web page. She figured out a lot of pieces, not to mention how it is like to have a great coaching character to make other folks easily have an understanding of specified tricky matters. You truly exceeded visitors" expectations. I appreciate you for delivering such necessary, trustworthy, informative and unique thoughts on that topic to Emily.
supreme clothing http://www.supreme-hoodie.us.com
kd shoes wrote
in the article Pci ven 168c dev 0036 subsys 2 ...
My husband and i have been absolutely peaceful that Jordan could complete his studies while using the precious recommendations he gained while using the web page. It"s not at all simplistic to just always be giving freely secrets and techniques that the rest could have been selling. And we all realize we need the writer to give thanks to for that. All of the explanations you"ve made, the simple website menu, the relationships you can give support to foster - it"s got all exceptional, and it"s really making our son in addition to us recognize that this matter is interesting, which is certainly incredibly important. Many thanks for all the pieces!
kd shoes http://www.kevindurant-shoes.us.com
I needed to send you that very small word to give many thanks over again with your pleasing opinions you have shown on this website. It is so wonderfully generous of you to deliver easily all that a number of us might have distributed for an ebook to help with making some profit on their own, particularly seeing that you could possibly have tried it in case you decided. Those secrets additionally acted like the great way to know that other individuals have the same interest like my own to understand a little more regarding this issue. I am sure there are many more enjoyable occasions in the future for individuals who look over your website.
jordan shoes http://www.cheapjordans.us.org
I must show my appreciation to the writer for bailing me out of this problem. Right after checking through the search engines and meeting things which were not pleasant, I figured my entire life was done. Existing without the presence of solutions to the problems you"ve solved all through your good guide is a critical case, as well as those which may have badly damaged my entire career if I hadn't"t encountered the website. Your actual competence and kindness in playing with all the things was very useful. I am not sure what I would have done if I hadn't come across such a point like this. It"s possible to now look ahead to my future. Thank you so much for the skilled and amazing help. I will not hesitate to propose your blog post to any person who will need assistance about this situation.
kyrie 4 http://www.kyrie4.org
I enjoy you because of your whole hard work on this website. My mum delights in working on investigations and it"s easy to see why. We all hear all concerning the lively tactic you deliver efficient guides via the web blog and even welcome response from the others about this matter while our own daughter has been becoming educated a whole lot. Have fun with the rest of the year. You"re the one doing a fantastic job.
kyrie 3 http://www.kyrie3.us.com
