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If you own a car, you need an OBD2 scanner. The most basic function of these devices is to tap into your vehicle’s onboard diagnostics system to read and clear engine trouble codes. But then, depending on the model you select, OBD2 scanners can also be used to read trouble codes from multiple vehicle systems, provide a real-time reading of the vehicle’s running condition, and more to help you troubleshoot issues.
If you’re just starting out, it can be confusing to decide which scanner works for you. Even if you know which features you want, it can be equally as difficult to figure out which models are worth your money. I’m here to provide you with some insight that’ll help you breeze right through your OBD2 scanner experience.
Summary List
- Best Overall: Innova OBD2 Scanner
- Best Value: Motopower OBD2 Scanner Code Reader
- Best High-End: Topdon Artidiag Pro San Tool
- Best for Smartphones: BlueDriver Pro OBD2 Bluetooth Car Diagnostic Scan Tool
Our Methodology
The best OBD2 scanners are intended to serve the DIY crowd, and that was my focus as I chose my top picks. While there are professional-level offerings here, I didn’t solely consider that type of consumer. I put in the time and research to make sure my recommendations and advice help those who are new to fixing their cars and can help them ease into the discussion along with the more experienced enthusiasts and professionals. I made sure to read what pros use as well as what the average DIYer is looking for to ensure our list has something for everyone in need of an OBD2 scanner.
Best OBD2 Scanners: Reviews & Recommendations
Best Overall: Innova OBD2 Scanner
Pros
- Reads ABS and transmission codes as well
- Can be paired with app
- Runs tests on battery and alternator
- User-friendly layout
Cons
- Quality control issues common
- Expensive for beginners
The Innova is the top pick because it’ll serve both the beginner and more experienced wrenchers well. Along with reading engine trouble codes, this model can tap into multiple vehicle systems and provide a live reading of the run condition. It’s also able to provide readings of transmission and ABS codes, which already sets it apart from entry-level units. Pairing it with the Repair Solutions 2 App reveals what codes mean as well as providing potential fixes. That function in combination with the simple interface makes for a user-friendly experience unmatched by much of the competition. Code severity levels, an oil light reset function, and battery and alternator test further prove this to be a must-have tool if you’re doing any kind of work on modern cars.
This is a great device, but quality control issues are common. Devices showing up with missing pieces or potentially used are relatively common. The price might keep the average beginner from adding the Innova to their collection.
Best Value: Motopower OBD2 Scanner Code Reader
Pros
- Affordable
- Easy to use
- Large backlit display
Cons
- Limited functionality
- Slow operation
Motopower’s scanner is an excellent choice for those who need a basic tool to read codes and don’t want to spend a fortune. This device simply hooks up to the OBD port and provides the user with engine codes that cause the vehicle’s check engine light to appear. It’s also very easy to set up and use, and a large backlit display reduces eyestrain and can provide live data for a real-time reading on the run condition.
This device will not read ABS or transmission codes, as it’s pretty limited in functions. Also, its operational speed is rather slow, which does cause some frustration.
Best High-End: Topdon Artidiag Pro San Tool
Pros
- Comprehensive diagnostics functionality
- Updatable software
- Easy to use
- Loaded with additional features
Cons
- Expensive
- Limited functionality
We’ve been testing this Topdon Artidiag Pro for a few weeks now and honestly, are a little blown away by just how powerful and functional it is. This is basically a factory scan tool, like you would find at a dealership, at a fraction of the price. But, not only is it a fraction of the price of a dealership tool, it’s price at the time of writing was $479, which is still a zero smaller than a tool truck alternative.
We should point out, this is for way more than just reading and resetting codes. This will allow you set emissions readiness, retract your electronic parking brake calipers, cycle your ABS module, recalibrate your throttle body, reset your immobilizer, pair new keys, it will even allow you to do long coding in the ECU. This is an extremely powerful tool and some of the functionality, we’ve yet to test out of fear of bricking our car.
When you buy this tool, you get a free 2-year subscription to the software. You will need to renew that and the price will be pretty close to the purchase price of the scanner. But, if you do one brake job and can reset a service light or two, you’ve already paid for this. The Artidiag Pro, as the name suggests, is for serious home mechanics and independent shops. If you aren’t experienced, then use it at your own risk.
Pros
- Wireless design clears clutter
- Easy to use app
- Covers basic functions
- Easy to store
Cons
- Expensive for a smartphone-based system
- Limited functionality
The BlueDriver Pro Bluetooth scan tool is the perfect tool for the minimalist. There are no chords, no wasted devices, just a simple unit that makes use of your smartphone. The BlueDriver pro uses an app to give you engine codes, the means to clear them, and even a live data feed to check the vehicle’s running condition. It’s easy to set up, easy to use, and even easy to store.
As handy as this unit is, it’s relatively limited in that it only reads engine codes. Despite that, its cost is similar to models that offer more useful functions to seasoned DIYers.
Our Verdict on the Best ODB2 Scanners
The Innova OBD2 Scanner is the best choice for the average consumer. It’s not at pro-level tool pricing, but it’ll still do more than the average entry-level scanner can. The Motopower OBD2 Scanner Code Reader is an excellent choice for those who need a scanner without a long list of additional features.
Things to Consider Before Buying an OBD2 Scanner
OBD2 scanners are amazing devices that can do a lot of things for mechanics. That doesn’t make the selection more complicated. Going over every last detail is important for high-level consumers and mechanics, but that’s not the case for someone just needing to advance their workmanship in the home garage. If you’re new to this, these tips will point you in the right direction.
Key Features
Vehicle Compatibility
The first thing to make sure of is that any scanner you’re considering will work with your vehicle. Not all are compatible with every vehicle or can even connect to them, and that’s the first place to start. Take the time to make sure that the scanner will work for your car or any car you plan to buy in the future before you decide to buy it. This concern affects owners of luxury and many European cars, but it’s always worth double-checking vehicle compatibility.
Functions
Some scanners just read engine codes. Others can read engine codes along with transmission and ABS codes. Then there are models that can read all of those as well as perform checks on the various components of a vehicle, allowing you to make sure anything attached to the electrical system is in good working order. You don’t need a scanner that can do it all if you’re just looking to perform basic repairs, and you can save some money by cutting the additional features. However, you can’t afford to skip those functions if you’re tackling more challenging projects or looking to do automotive repair work at a professional level.
Connection Type
Most OBD2 scanners use a wired connection, which is great for a few reasons. The biggest advantage is that the tools can generally tap into the vehicle’s power for operation, cutting out the dependence on additional batteries in some cases. If it’s something you dislike or you prefer reading codes remotely, a wireless unit is something to look for. Some devices, such as the BlueDriver Pro OBD-II Bluetooth Car Diagnostic Scan Tool, can even send information to your smartphone, cutting out the need to run multiple devices as you investigate.
Pricing
OBD2 Scanners can cost as little as $20, and models around that price are perfect for beginners or folks who just need engine codes. Moving up to the $50-$150 price range is when more serious repairs become the norm. Moving up to the $500 to $1,000 range is for DIYers who repair every inch of their vehicles as well as professionals who are just starting out. And if you’re a professional working on many different vehicles, it’s worth spending even more for high-end units that’ll get the job done.
FAQs on OBD2 Scanners
You’ve got questions. The Drive has answers.
A: No, an OBD2 scanner won’t damage your car. As long as it makes a sound mechanical connection, an OBD2 scanner is completely safe for your vehicle.
A: In most cases, no. Though an OBD2 scanner draws power from the battery, the car must be on for it to work. You can drain the battery, but you can run the engine to prevent that from happening.
A: The OBD2 scanner comes with a connection specifically for OBD2 ports. All you have to do is plug it in. Some cars, however, require special connectors, and dedicated scanners or adapters must be used.
A: Running diagnostics tests through the OBD2 port with a scan tool likely won’t void your warranty.
A: If your car was built after Jan. 1, 1996, it’s got an OBD2 port. If it was manufactured before that, it might have an OBD-I port or none at all.
