The OBD is brief for On-Board Prognosis, a diagnostic protocol that retains monitor of auto operation. When the automobile is working, its management modules monitor how every system performs. They do that utilizing a spread of sensors, and when their values are out of predetermined vary, the automobile warns a driver with a corresponding warning mild. As well as, a bother code is saved throughout the management module. All vehicles from 1996 onwards have the OBD2 system built-in into their construction. Nevertheless, accessing these bother codes is simply doable with a scan software, which hooks as much as the OBD2 port.
Through the years, we have now been utilizing nearly each OBD2 scanner model that exists to diagnose automobile issues. Every part from a budget ELM327 adapter, FIXD sensor, Autel, SnapOn, TopDon, and even dealer-level scanners similar to MB Star. We rapidly realized that selecting one of the best OBD2 scan software might be complicated even for auto mechanics and automobile homeowners in search of an excellent DIY scanner.
After testing too many OBD2 scanners, we had been annoyed with not less than one in every of these points:
- Restricted Management Unit Protection – The scanner can solely diagnose engine, airbag, transmission, or ABS however not different programs.
- Solely One Automobile Model – Helps all system diagnostics for one make and mannequin. If that you must diagnose different automobile manufacturers, you should pay extra.
- No Bidirectional Help – The scanner doesn’t permit you to check parts or sensors. For instance, if the automobile is supplied with air suspension, you cannot activate the compressor with the scanner to carry out testing.
- Yearly Replace Charges – The scanner requires a yearly subscription, or you should pay to replace.
- Pace – The scanner is just too sluggish to scan autos and skim and clear codes.
- No Support – No tutorials on use the scanner. Lack of sluggish response from the help crew.
- Worth – As a result of many customers are unfamiliar with scanners and what they’ll do, we discovered that scanners with restricted performance had been usually overpriced.
Automobiles at the moment want a whole lot of consideration and good OBD2 scanners that may diagnose numerous management models. The verify engine mild codes are saved within the Engine Management Unit (ECU), which is just one of over twenty management you’re discovered in your automobile. That is why a wonderful diagnostic software must do extra than simply learn and clear codes that set off the warning mild. Due to this fact, we determined to focus this text on diagnostic scan instruments that may diagnose all of the programs in your automobile and others that provide one of the best worth for the cash.
Finest OBD-II scanner – our picks
1. YOUCANIC Full System Scanner

The YOUCANIC scanner permits automobile homeowners and automotive technicians to learn diagnostic bother codes for any management unit discovered on the automobile. As well as, it is going to allow the automobile proprietor to take automobile upkeep and troubleshooting into their very own fingers. Not solely are you able to learn and clear codes from any management unit on any automobile make, however you may as well view dwell knowledge. This scanner gives bidirectional help that different scanners present on diagnostic scanner fashions if you spend over $1000. Bidirectional help lets you use activate solenoids or pumps to diagnose an issue, identical to a supplier tech can.
The YOUCANIC scanner plugs in on to the diagnostic OBD2 port underneath the motive force’s dashboard. The scanner is hard-wired as a substitute of utilizing a Bluetooth dongle. A rugged handheld scanner that matches the wants {of professional} mechanics whereas nonetheless being inexpensive sufficient for DIYers.
2. Autel MaxiCOM MK808

Subsequent, we come to Autel, which is without doubt one of the most well-known names within the enterprise. Their units are praised for his or her efficiency and flexibility. The newest mannequin within the MaxiCom vary, codenamed MK808TS, doesn’t fall quick. It affords nearly any characteristic knowledgeable or DIY mechanic may have. This contains entry to all management modules, live-data monitoring, and bidirectional testing. Moreover, there are additionally issues like service reset and sensor programming.
With a 7-inch touchscreen show, this scanner is smaller than different related units from Autel’s vary. However this doesn’t must be a disadvantage, because it makes it much less cumbersome to make use of. The pop-up stand on the again provides to the practicality, permitting the system to be mounted on the dashboard. The producer is especially pleased with the scanner’s TPMS characteristic, which is identical as of their in style TS601 TMPS software.
There are some drawbacks, such because the picture high quality, which can be a bit low for some. As well as, the IMMO operate, which resets the Anti-Theft system or relearns the keys, doesn’t work effectively with some European vehicles. And over $700 is a little more costly than a YOUCANIC scanner.
3. LAUNCH X431 V Professional

Like Autel, Launch is a giant title in diagnostic tools. We have now included their X431 V Professional on this choice, as many consultants favor it. That is the most important system on the checklist, with a 10-inch touch-sensitive show that reveals a picture in high-definition. It additionally has a pair of cameras, front and back, identical to most tablets do. Predictably, this scan software provides you entry to all automobile modules and is bidirectional, like the opposite two.
However right here’s the X431 V Professional’s social gathering piece – this scan software can calibrate ADAS on most makes and fashions. This may be useful, as these semi-self-driving programs have gotten extra frequent in trendy vehicles.
The draw back of this diagnostic system is its value, which is roughly $900. This makes it nearly twice as costly because the Youcanic scanner. For the additional cash, all you get is ADAS help and a crisp show.
Sorts of OBD2 scan instruments for house mechanics
There may be a variety of automotive diagnostic instruments available on the market, every providing completely different capabilities, and options. But additionally, there could be a noticeable value distinction between seemingly related units. This may increasingly create confusion when automobile homeowners attempt to resolve which scan software is finest suited to their wants. So, to assist out with this, we are going to go over three most important forms of automobile scanners.
OBD2 reader
It is a primary system that solely provides entry to drivetrain codes. With it, you’ll be able to see what diagnostic code has triggered the verify engine warning mild and erase it. As well as, a lot of them will permit you to monitor the dwell knowledge. However anything, just like the ABS or Airbag programs, is past their attain.
Automobile-specific OBD2 readers
These are extra highly effective variations of the beforehand talked about units. Their most important upside is the flexibility to entry all automobile modules and skim verify diagnostic codes. Carly OBD2 Bluetooth or BlueDriver Bluetooth adapters are a wonderful instance right here. On the draw back, these scanners often work with one specific model solely.
Diagnostic instruments
Such a tools provides knowledgeable degree of perception into the automobile’s infrastructure at a degree of approved restore outlets. Aside from getting access to all modules and saved codes, they’ll additionally begin numerous diagnostic procedures. This bidirectional help lets you check parts and pumps to slender down the issue and keep away from misdiagnoses. Skilled diagnostic instruments will work with most makes and fashions, however some exemptions might exist.
Conclusion
OBD2 scanners are an absolute must-have for any automobile fanatic these days. Not solely will they provide a fast perception into what triggered a warning mild, however they can even assist remedy it. Nevertheless, there are all kinds of units available on the market, starting from these with restricted choices to very succesful however costly ones. However with YOUCANIC full system scanner, you’ll get dealer-lever diagnostic help at an inexpensive value. This makes it one of the best scan software throughout.
FAQ
Finest OBD2 scanner for a house mechanic in 2022?
YOUCANIC Full System Scanner is one of the best scanner you may get for the cash. It’s designed to provide the facility again to the automobile proprietor and keep away from costly dealership visits.
What OBD2 scanner does Autozone use?
Autozone makes use of numerous manufacturers of primary code readers. The scanners used at AutoZone will solely be capable to learn and clear engine or transmission-related OBD2 codes.
Is it value shopping for automobile scan instruments for house automobile repairs?
Sure, indubitably. A superb OBD2 scanner will permit you to learn, clear, and diagnose any warning mild. Then again, primary OBD2 scanners that hook as much as your automobile by way of Bluetooth will not be definitely worth the funding. Normally, these can solely learn and diagnose engine codes.
What sort of OBD2 scan software do I would like?
The YOUCANIC Full System Scanner is all that you must diagnose any automobile, identical to any supplier can. As well as, it’s sensible and simple to make use of.
How to decide on one of the best automobile scanner to purchase?
The YOUCANIC Full System Scanner is far inexpensive than different full system scanners whereas giving the identical degree of perception right into a automobile’s dwell knowledge and different working parameters.
What are one of the best OBD-II scanners available on the market?
YOUCANIC UCAN-II Full System Scanner, which we designed after testing a whole lot of completely different scanners. Many scanners can solely work on sure makes, whereas the YOUCANIC scanner works on all makes. Many different scanners can solely diagnose a number of programs, similar to engine, airbag, or abs, whereas YOUCANIC Full System Scanner can diagnose all automobile programs.
Do OBD2 scanners work on all vehicles?
All OBD2 scanners work on 1996 and newer autos to learn and clear the verify engine mild. Solely good scanners such because the YOUCANIC full system scanner works on all vehicles and might diagnose any warning mild, together with traction, airbag, transmission, local weather management, lights, and another system. A Fundamental OBD2 scanner might not present any codes when there’s a drawback, and there are bother codes in a management unit.
Are Bluetooth scanners any good?
Most Bluetooth OBD2 scanners have very primary performance. They will solely diagnose the verify engine mild and solely learn codes from the Engine Management Unit, which is just one out of 20+ management models discovered on trendy autos.
Are Automotive Diagnostic Scanners Common?
Not all automobile diagnostic scanners are common. Many low-cost automobile scanners can solely diagnose the verify engine mild or might solely diagnose all programs on one automobile make or mannequin. The YOUCANIC full system scanner is actually common and might diagnose all issues on all vehicles.
Are low-cost OBD2 automobile scanners any good?
They’re good for diagnosing the verify engine mild and clearing verify engine warning lights. Additionally, they’re good for retrieving the fault code that triggered the verify engine mild. When you have different warning lights on, an affordable OBD2 scanner is just not good and received’t present any fault codes.
What’s one of the best OBD2 scanner to make use of at house?
One of the best OBD2 scanner to make use of at house is YOUCANIC Full System Scanner. It was designed particularly to provide automobile homeowners a strong performance just like what the sellers use.
Can You Use a Scan Device Whereas Driving?
You should utilize a scan software whereas driving to stream dwell sensor knowledge. Nevertheless, don’t use the scanner to reset management models or energetic sensors whereas driving.
Can an OBD2 scanner harm your automobile?
Not going. We have now been engaged on vehicles for over 30 years and haven’t had a single subject case the place an OBD2 scanner broken the automobile.
Do Automotive Scan Instruments Work on ALL Automobiles?
Solely good scan instruments work on name vehicles and might scan all management models. YOUCANIC Full System Scanner is designed to work on all vehicles and connect with all management modules or management models.
Do I Want a Code Reader or a Scan Device?
Code reader and scan software are interchangeable phrases. You want an excellent diagnostic software that may learn and clear codes out of your automobile’s programs, not simply the engine management unit or powertrain module.