What Is The Best OBD2 Scanner In 2024 For Car Diagnostics?

The Best Obd2 Scanner 2024 is a tool that can communicate with your vehicle’s computer to diagnose problems. If you’re looking for a way to read and clear check engine lights, monitor your car’s health, and potentially save money on repairs, CAR-TOOL.EDU.VN can help you find the perfect scanner. We offer detailed information and comparisons to assist you in making the right choice. Exploring scan tools, automotive diagnostics, and code readers can further enhance your understanding.

1. What Is An OBD2 Scanner And Why Do You Need One In 2024?

An OBD2 scanner is a device that connects to your car’s On-Board Diagnostics II (OBD2) port, allowing you to read diagnostic trouble codes (DTCs) and access real-time data about your vehicle’s performance. According to the Environmental Protection Agency (EPA), OBD2 ports have been mandatory on all cars sold in the US since 1996. Understanding automotive diagnostic tools and scan tool functionalities can significantly enhance your car maintenance capabilities.

• Read and Clear Trouble Codes: The primary function of an OBD2 scanner is to read and clear DTCs, which are codes generated by the vehicle’s computer when it detects a problem.
• Monitor Vehicle Health: An OBD2 scanner allows you to monitor various parameters such as engine temperature, RPM, and fuel efficiency in real-time.
• Cost Savings: By diagnosing and addressing minor issues early, you can prevent them from escalating into major repairs, saving you money in the long run.

2. What Are The Key Features To Look For In The Best OBD2 Scanner 2024?

When selecting the best OBD2 scanner 2024, several factors should influence your decision to ensure that the device meets your specific needs and provides accurate, reliable information. Consider ease of use, vehicle compatibility, data logging, live data streaming, solution identification, and connectivity when choosing a scan tool.

• Vehicle Compatibility: Ensure that the scanner is compatible with your vehicle’s make and model. Most scanners support all OBD2-compliant vehicles, but some may offer enhanced support for specific manufacturers.
• Ease of Use: Look for a scanner with an intuitive interface and clear instructions. Scanners with color displays and large buttons are often easier to use. Bluetooth-enabled scanners that connect to smartphone apps offer user-friendly interfaces and advanced features.
• Data Logging: This feature allows you to record and analyze vehicle data over time, which can be useful for diagnosing intermittent problems.
• Live Data Streaming: Provides real-time data about your vehicle’s performance, including engine temperature, RPM, and sensor readings.
• Solution Identification: Some advanced scanners offer possible solutions to the detected codes, saving you time and effort in troubleshooting.
• Connectivity: Scanners can connect via wired (USB) or wireless (Bluetooth) connections. Bluetooth scanners offer greater flexibility, allowing you to monitor data from your smartphone or tablet.

3. How Can The Best OBD2 Scanner 2024 Benefit Different User Groups?

The best OBD2 scanner 2024 can benefit a wide range of users, from professional mechanics to everyday car owners. Here’s how:

• Professional Mechanics: A high-end OBD2 scanner can streamline the diagnostic process, providing detailed information and advanced features like bi-directional control and actuation tests.
• DIY Enthusiasts: A basic OBD2 scanner can help DIY mechanics diagnose and fix common issues, saving money on repair costs.
• Car Owners: Even if you’re not a mechanic, an OBD2 scanner can help you understand your car’s health and identify potential problems before they become major issues.

4. What Are The Different Types Of OBD2 Scanners Available In 2024?

The OBD2 scanner market offers a variety of devices tailored to different needs and budgets. Understanding the different types of scanners can help you choose the one that best fits your requirements:

• Basic Code Readers: These are the simplest and most affordable scanners, capable of reading and clearing trouble codes. They typically have a small display and limited features.
• Mid-Range Scanners: These scanners offer additional features such as live data streaming, freeze frame data, and enhanced diagnostic capabilities.
• Professional-Grade Scanners: These are the most advanced and expensive scanners, offering features such as bi-directional control, actuation tests, and advanced diagnostic functions. They are typically used by professional mechanics.
• Smartphone-Based Scanners: These scanners connect to your smartphone or tablet via Bluetooth and use a dedicated app to display data and perform diagnostic functions. They offer a user-friendly interface and often come with advanced features.

5. What Are The Best OBD2 Scanner 2024 Options For Different Budgets?

The best OBD2 scanner 2024 is available across a wide range of price points, allowing you to choose a device that fits your budget and needs. Consider cost and features for each scan tool within your budget.

• Under $50: Basic code readers like the Motopower MP69033 are a good option for reading and clearing trouble codes.
• $50 – $150: Mid-range scanners like the Ancel BD31 and Bluedriver Pro offer additional features such as live data streaming and enhanced diagnostics.
• Over $150: Professional-grade scanners like the OBDLINK MX+ and Bosch 1300 OBD offer advanced features and capabilities for serious DIYers and professional mechanics.

6. How Do You Use The Best OBD2 Scanner 2024 To Diagnose Car Problems?

Using the best OBD2 scanner 2024 is straightforward. Here’s a step-by-step guide:

1. Locate the OBD2 Port: The OBD2 port is typically located under the dashboard on the driver’s side.
2. Connect the Scanner: Plug the scanner into the OBD2 port.
3. Turn on the Ignition: Turn the ignition to the “on” position, but do not start the engine.
4. Read the Codes: Follow the scanner’s instructions to read the trouble codes.
5. Interpret the Codes: Use the scanner’s built-in database or an online resource to interpret the codes and identify the problem.
6. Clear the Codes (Optional): Once you’ve fixed the problem, you can clear the codes using the scanner. Keep in mind that clearing the codes will not fix the problem if it still exists.

7. What Common Mistakes Should You Avoid When Using The Best OBD2 Scanner 2024?

While the best OBD2 scanner 2024 is relatively easy to use, there are several common mistakes that you should avoid:

• Ignoring the Codes: Don’t ignore trouble codes, even if they seem minor. Addressing issues early can prevent them from becoming major problems.
• Clearing Codes Without Fixing the Problem: Clearing codes without fixing the underlying issue will only turn off the check engine light temporarily. The code will eventually return if the problem persists.
• Relying Solely on the Scanner: An OBD2 scanner is a valuable tool, but it’s not a substitute for proper diagnostic skills. Always use the scanner in conjunction with other diagnostic methods, such as visual inspection and testing.
• Purchasing Incompatible Scanners: Always verify compatibility with your car before purchase.

8. How Can You Maintain And Update Your Best OBD2 Scanner 2024 For Optimal Performance?

To ensure that your best OBD2 scanner 2024 continues to perform optimally, it’s important to maintain and update it regularly:

• Keep the Scanner Clean: Wipe the scanner with a clean, dry cloth to remove dirt and grime.
• Store the Scanner Properly: Store the scanner in a cool, dry place when not in use.
• Update the Software: Check for software updates regularly and install them to ensure that the scanner has the latest features and vehicle coverage.
• Protect the Cable: Avoid kinking or damaging the cable, as this can affect the scanner’s performance.

9. What Are Some Advanced Features Available In The Best OBD2 Scanner 2024?

The best OBD2 scanner 2024 offers a range of advanced features that can help you diagnose and repair complex vehicle problems. Some of these features include:

• Bi-Directional Control: Allows you to send commands to the vehicle’s computer to test various components and systems.
• Actuation Tests: Allows you to activate or deactivate specific components, such as fuel injectors or solenoids, to test their functionality.
• ABS and Airbag Codes: Some scanners can read and clear ABS (anti-lock braking system) and airbag codes, providing valuable information about these critical safety systems.
• Advanced Diagnostics: Some scanners offer advanced diagnostic functions such as misfire detection, fuel trim analysis, and EVAP system testing.
• OBD1 Compatibility: Scanners like the Bosch 1300 OBD offer OBD1 compatibility, allowing you to diagnose older vehicles that are not OBD2-compliant.
• Freeze Frame Data: This feature captures a snapshot of vehicle data when a trouble code is triggered, providing valuable information for diagnosing intermittent problems.

10. What Are Some Of The Top Brands Offering The Best OBD2 Scanner 2024?

Several brands offer high-quality OBD2 scanners with a range of features and capabilities. Some of the top brands include:

• OBDLINK: Known for its advanced features and reliable performance.
• Ancel: Known for its affordable prices and user-friendly designs.
• Bluedriver: Known for its easy-to-use smartphone app and comprehensive diagnostic reports.
• Bosch: Known for its professional-grade scanners and extensive vehicle coverage.
• Motopower: Known for its basic, affordable code readers.
• Topdon: Known for packing a big punch in a small package.

Understanding what each brand offers can guide you to the best OBD2 scanner 2024 for your automotive needs.

By understanding these key aspects of OBD2 scanners, you can make an informed decision and choose the best OBD2 scanner 2024 to meet your needs. Whether you’re a professional mechanic or a DIY enthusiast, the right OBD2 scanner can help you keep your car running smoothly and save money on repairs.

1. OBDLINK MX+

OBDLINK MX+ Scanner

• Connection: Bluetooth (via an app)
• Data Log: Trip stats and vehicle stats for every drive
• Identifies Solution: Yes
• Live Data: Yes, viewable on 6-gauge digital display via app
• Display: Phone or tablet
• Vehicle Compatibility: All 1996 and newer cars in U.S. and international variants

The OBDLINK MX+ is designed as a top-tier tool to retrieve comprehensive data from your vehicle’s OBD2 port, the OBDLINK MX+ provides extensive vehicle insights. According to OBDLink, its unique security mechanism prevents unauthorized access, reducing hacking risk.

Pros:

• Offers advanced data for Ford and General Motors vehicles (like cooled/heated seats)
• Battery drain and overvoltage protection
• Compatible with IOS, Android, Windows, and third-party apps

Cons:

• Limited compatibility with new vehicles 2022 or newer

The OBDLINK MX+ is a top-of-the-line tool for getting all the information possible from your vehicle’s OBD2 port. In a compact design, the scanner is an easy-to-use plug-and-forget system that you can leave in your OBD2 port 24/7, thanks to the battery drain and overvoltage protection. Additionally, this piece claims to be hacker-proof using a unique security mechanism that prevents unauthorized access.

What also set the MX+ apart was its ability to connect with third-party apps. This computer is compatible with hundreds of apps that unlock enhanced performance, let you change vehicle settings, remote start the engine on select vehicles, and even connect with electric vehicles for diagnostics. On top of the enhanced log data and graphs, there is an additional heads-up display mode that offers 13 different preset parameters, which are readable in straightforward gauges on your phone or tablet screen. This component expands the data you can live monitor while driving.

For off-street driving, there is even a performance mode that clocks variables like 0 to 60 miles per hour (performance), ¼-mile time, ½-mile time, and more. For modern vehicles, 2022 models and newer, there is much less compatibility with this scanner. But new vehicles are being added as fast as possible, and software updates are free.

Overall, while this was the priciest Bluetooth scanner we tested, it delivered the most information about our vehicle. The interface was the easiest to keep plugged in for frequent use, and the design was our favorite for monitoring live data. For anyone who wants to get the most possible from their OBD2 scanner, the MX+ is the one for you.

2. Motopower MP69033

Motopower MP69033

• Connection: Wired
• Data Log: No
• Identifies Solution: No
• Live Data: Some
• Display: 2.8″ non-color screen
• Vehicle Compatibility: Most U.S., E.U., and Canada models

The Motopower MP69033 is a budget-friendly wired scanner designed for basic code reading and clearing. Priced affordably, the Motopower MP69033 offers essential OBD2 functions without advanced features.

Pros:

• Priced affordably
• Large buttons for ergonomic use

Cons:

• Not as feature-rich
• Basic code reader
• Screen isn’t the most clarion

Looking for a basic reader at a bargain? The Motopower MP69033 is a friendly-priced scanner that won’t let you down. This wired scanner easily connects to your vehicle to read and clear codes. It features large buttons for ease of use and a simple menu of functions.

This plug-and-play OBD2 scanner is relatively small with a 2.8-inch LCD screen that’s in black and white. Its 2.5-foot wired cord lets you plug in under the dash and work from the front seat with plenty of slack. It doesn’t need batteries or to be charged, because it’s powered by your vehicle when plugged in.

Available in six languages and compatible with most modern cars, this design matches many models. What are you giving up? While it does provide live data, the screen can be hard to read, and it only offers one parameter at a time. It doesn’t have some of the features like enhanced diagnostics or full data logs that other scanners have.

But the snazziest technology isn’t for every driver, nor does it always fit the bill. If you want an analog scanner that just works for basic code reading and clearing, look no further than the MP69033.

3. Bluedriver Pro

Bluedriver Pro Scanner

• Connection: Bluetooth
• Data Log: Freeze frame
• Identifies Solution: Yes, multiple fixes
• Live Data: Yes
• Display: Phone or tablet
• Vehicle Compatibility: Most U.S., E.U., and Canada

The Bluedriver Pro is a Bluetooth-powered OBD2 scanner with a streamlined, user-friendly menu. The device also offers step-by-step instructions, so you can read, fix, and clear the check engine lights with ease. According to BlueDriver, it provides comprehensive diagnostic reports, enhancing the user experience.

Pros:

• Easy-to-use app
• Comprehensive diagnostic reports with code
• Includes codes for airbag, tire-pressure monitoring system (TPMS), and anti-lock braking system (ABS)

Cons:

• Live data can be hard to monitor while driving and confusing
• User manual needs cell data or WiFi
• Not compatible with other apps

If you’re new to the scene of OBD2 scanners, you might appreciate a more elementary and manicured experience. The Bluedriver Pro is a Bluetooth-powered OBD2 Scanner with a streamlined, user-friendly menu. The device also offers step-by-step instructions, so you can read, fix, and clear the check engine lights with ease.

When we read codes with the app, a full repair report was generated for each code. Those exams included the VIN number, the code and its frequency of occurrence, a list of solutions with links to parts, and the ability to record your own fix in the app. You could conveniently share, save, and send this report as a PDF. Additionally, the design identifies ABS, airbag, and TPMS codes.

There are both instructional prompts and a full user manual within the corresponding app. But the user manual is provided via several YouTube videos, so you’ll need cell service or Wi-Fi to watch them. The live data is much harder to read than the gauges we loved on the MX+, and the frequency rate for collecting data was much slower. The Bluedriver is also not compatible with third-party apps that need a direct OBD2 connection.

Regardless, we were still impressed by the smooth interface and the Bluetooth-app connectivity. Even novice scanners will be able to interpret and eliminate codes, discover solutions, and order parts with the Bluedriver.

4. Bosch 1300 OBD

Bosch 1300 OBD Scanner

• Connection: Wired
• Data Log: Yes
• Identifies Solution: Yes, 26 million fixes in database
• Live Data: Yes
• Display: 3.5” color display
• Vehicle Compatibility: All U.S. OBD1 and OBD2 vehicles

The Bosch 1300 OBD is a wired scanner designed for both OBD1 and OBD2 vehicles, featuring an extensive database of verified fixes. Bosch is recognized for its robust automotive diagnostic tools, and this model offers comprehensive coverage.

Pros:

• OBD1 and OBD2 compatibility
• ABS and supplemental restraint system (SRS)/airbag codes
• Battery-powered for use when vehicle is dead
• 26 million experience-based fixes uploaded

Cons:

• Priciest option tested
• Extra cables occupy excess room
• No fuel mileage data

Bosch is known for its automotive diagnostic tools from professionals to hobbyists, and the Bosch 1300 OBD is a true powerhouse when it comes to communicating with your vehicle. Not only does it feature enhanced OBD2 compatibility, but it is the only scanner that offers OBD1 compatibility to boot.

It’s decked out with a wired design that comes with six different connectors, so it can work with a full range of cars. That load includes cables for 1984-1995 GM and Ford vehicles, as well as 1989-1995 Chrysler and Toyota vehicles, plus all versions of OBD2-equipped vehicles. There’s no dearth of options.

Additionally, the tool’s battery can be charged with a 9-volt car outlet. While it doesn’t need a battery and can be powered by the vehicle, it can diagnose a dead vehicle with a fully charged battery. The 1300 series is capable of detecting and reading ABS and airbag codes on top of normal codes.

What also pushes this reader beyond competition — besides the OBD1 compatibility — is the code connect. That database offers more than 26 million verified fixes for check engine light codes. That directory is installed in the device and fully accessible without cell or Wi-Fi connection.

While this is a very powerful automotive diagnostic tool, it does not have the ability to read fuel data, which, at the expensive price point, we felt should be included. The device is physically very large, and the extra cables aren’t compact. But if you’re looking for a top-of-the-queue code reader and want it to work on both OBD1 and OBD2 vehicles, then the 1300 OBD is by far the best.

5. Ancel BD31

Ancel BD31 Scanner

• Connection: Wired and bluetooth
• Data Log: Freeze frame
• Identifies Solution: Yes
• Live Data: Yes
• Display: Phone, tablet, and handheld 1.5 x 2” screen
• Vehicle Compatibility: All OBD2 vehicles plus E.U. and Canada

The Ancel BD31 is a unique design that supports both wired and Bluetooth connections, functioning also as a heads-up display (HUD). With three operational modes, this scanner is highly versatile.

Pros:

• Provides multiple probable fixes for every check engine code
• Switches between bluetooth and wired handheld connection with ease
• Handheld can be used as an additional heads-up display (HUD) with heater and magnet mount

Cons:

• Screen can be hard to read
• Less information is displayed via wired connection versus bluetooth app
• Won’t clear ABS or airbag codes

As both a wired and Bluetooth scanner that can be utilized simultaneously, the Ancel BD31 is a rather unique design. In fact, it actually has three modes: wired, Bluetooth, and heads-up display (HUD).

When operated as a Bluetooth scanner, we found that the Ancel didn’t have the easiest menu to navigate. Still, we were able to read codes via our phone app when the scanner was plugged in. The diagnostics for the engine codes were where the Ancel really shined.

For our P0113 test code, the generated report gave us six different potential fixes, which was by far the greatest quantity compared to other scanners. Additionally, when in cell service or connected to Wi-Fi, there’s a quick link for you to Google the code for your specific vehicle, which helps to diagnose why that code was thrown.

The phone app offered live monitoring and displayed three different gauges that could be used as a HUD when driving. The wired side of the Ancel offers a tiny screen and only four buttons, but we were able to read codes without the use of a phone or tablet. The third mode — when the Ancel is plugged in — converts the screen into a secondary HUD where you can view set parameters like boost or air-fuel ratio. It comes with both a magnet and a vent mount, so that you can easily mount the screen where you can see it while driving.

While we loved the ability to have three different modes, the built-in screen was petite and hard to read. The scanner also can’t pinpoint or wipe the codes for ABS or airbags. But if you’re looking for a scanner with multiple functions, various ways to connect a scanner to your rig, and high-quality diagnostic data, the BD31 is a solid choice for the bill.

6. Topdon TopScan OBD2 Bluetooth Scanner

Topdon TopScan OBD2 Bluetooth Scanner

• Connection: Wireless
• Data Log: Freeze Frame
• Identifies Solution: Yes
• Live Data: Yes
• Display: Phone, tablet
• Vehicle Compatibility: 98% of vehicles from 1996-2023

The Topdon TopScan OBD2 Bluetooth Scanner is a compact, wireless unit that offers comprehensive vehicle coverage and a user-friendly app interface. Priced affordably, it packs a significant punch, suitable for both DIY enthusiasts and budget-conscious professionals. According to Topdon, the TopScan covers 98% of vehicles built from 1996-2023, making it a versatile tool.

Pros:

• Compact
• Bluetooth
• Live data
• ABS and Air Bag codes

Cons:

• Only works on vehicles up to 2023 (but Topdon does put out regular updates)

Coming in at a pretty friendly price, the Topdon TopScan OBD2 Bluetooth Scanner packs a big punch in a small package. It is a wireless Bluetooth unit that covers 98% of vehicles built from 1996-2023.

We downloaded the app and paired the two devices, which turned out to be completely painless. The app is easy to navigate and understand. It will recognize our exact vehicle based on our VIN, which can be easily scanned by the device or input manually.

Our test vehicle was a 2008 Ford F250 XLT 4×4 with a 6.4L powerstroke diesel engine. It had an active code for a faulty TPMS sensor. While it did not recognize the TPMS fault on our test vehicle, it did recognize a few past codes for which the problems had previously been repaired and the codes had not been cleared. Clearing those codes was a breeze and very straightforward. The unit is supposed to detect TPMS codes but did not detect ours.

There are also live data capabilities that can get very detailed, right down to the quantity of the air-fuel mixture per cylinder and compression testing, for instance. So, while this TopScan is not technically a professional-grade device, it offers a multitude of options for a vehicle.

With the compact wireless design and vast array of vehicle systems that this device covers, as well as the amount of issues that can be serviced, the Topdon TopScan Bluetooth scanner is a very viable candidate to add to your toolbox that won’t put a huge dent in your wallet.

OBD2 Scanners Comparison Chart

OBD2 Scanner	Price	Connection	Data Log	Identifies Solution	Live Data	Vehicle Compatibility
OBDLINK MX+	$140	Bluetooth (via app)	Trip stats and vehicle stats for drive	Yes	Yes, 6-gauge digital display via app	All 1996+ cars in U.S. & international variants
Motopower MP69033	$24	Wired	No	No	Some	Most U.S., E.U., & Canada models
Bluedriver Pro	$100	Bluetooth	Freeze frame	Yes, multiple fixes	Yes	Most U.S., E.U., & Canada
Bosch 1300 OBD	$300	Wired	Yes	Yes, 26M fixes	Yes	All U.S. OBD1 & OBD2 vehicles
Ancel BD31	$88	Wired & Bluetooth	Freeze frame	Yes	Yes	All OBD2 vehicles, E.U. & Canada
Topdon TopScan OBD2	$80	Wireless	Freeze Frame	Yes	Yes	98% of vehicles from 1996-2023

Buyer’s Guide: How to Choose an OBD2 Scanner

Read & Clear Codes

The most basic function of an OBD2 scanner is to read and clear the trouble codes that cause check engine lights. Now, what are these codes referring to? A trouble code is produced by the onboard computer system when it senses a status that’s out of normal parameters. These hiccups can exist within the engine and transmission, emissions, or other systems.

Clearing a code deletes it from the system and turns off the check engine light. If the problem that caused the code in the first place is not fixed, the vehicle will produce the code again and turn the check engine light back on. You can clear a code to verify that it is a recurring problem by waiting for it to come back or after a fix is attempted.

Bluedriver Pro Easy to Use

Foundation: How to Read an Error Code

Codes produced are five characters long and can be broken down simply. The first character of the code represents the system related to the problem:

• B: Body
• C: Chassis
• P: Powertrain
• U: Undefined

Second in line, the next character lets you know whether the code is generic or enhanced:

• 0: Generic
• 1: Enhanced

The third character identifies the sub-system that the code pertains to:

• 1: Emission management (air or fuel)
• 2: Injector circuit (air or fuel)
• 3: Misfire or ignition
• 4: Emission control
• 5: Idle control and vehicle speed
• 6: Output circuit and computer
• 7: Transmission
• 8: Transmission
• 9: SAE Reserved
• 0: SAE Reserved

The fourth and fifth characters are variable and relate to specific problems.

OBDLINK MX+ High Quality

Code Reading Interface

While all the scanners in our guide can connect to the vehicle and produce this five-character trouble code, some of them make it easier to not only read the codes, but can also read more vehicle-specific codes. To point, the Motopower MP69033 doesn’t have many features, therefore it has an uncomplicated menu that is very self-explanatory to use in order to read and clear basic codes.

Alternatively, we considered the Bosch 1300 OBD to be among the most time-consuming to read codes as it asks a few questions before reading the codes. With all consideration, it’s still pretty fast. It can read airbag and ABS codes on top of normal codes.

Any of the Bluetooth code readers use a phone-based app to read the codes compared to pushing physical buttons. The user interface of such designs is much quicker to use and delivers more information. Each Bluetooth app will walk you through step-by-step instructions to connect to your vehicle and then read any error codes.

Ancel BD31 Bluetooth and Wired

Diagnostics

Before diagnostics, the first step when using an OBD2 scanner is to read the code, which is provided in a basic five-character format. When a scanner provides its reading, it’ll deliver a basic description associated with that code. The Motopower MP69033, for example, only displays the code and its foundational descriptions.

Take P0113, for instance, which is the code that identifies the Intake Air Temperature Sensor 1 Circuit High. After you have the code in hand comes diagnostics, or trying to diagnose the problem that caused the code in the first place. Many scanners in our guide go a step above reading codes and also provide high-quality diagnostics.

The Bosch 1300 OBD provides the same information on its screen as the Motopower MP69033 but has an internal library of 26 million possible fixes for different error codes. On a different screen, you can type in the specific error code to find possible fixes, which is pretty advantageous.

Bluetooth-compliant OBD2 scanners go a step further by connecting to the internet, which helps open up a library of information when it comes to understanding codes. On their display readout of the error code, they will include a link to the internet to search the specific code in order to find fixes.

It’s worth noting that this only works with cell service, unlike the Bosch 1300 OBD, which has its diagnostics saved internally in its computer. The standout in this realm was the Ancel BD31, coming in hot with six possible faults per error, plus a link to view more information via Google for every faulty code.

Using App to Read Data

Live Data & Real-Time Monitoring

OBD2 scanners not only read codes but can also show you real-time data about your vehicle. First and foremost, each trouble code is associated with a sensor on your rig. When that sensor identifies data beyond its typical parameters, it triggers the code. You can use a scanner to view the live data from any of the sensors on your vehicle.

Certain scanners let you view only one set of sensor data at a time, while others monitor and display lists of multiple sensors at once. Some of these code readers can chart these data sets with a graph or numerically, while others put them into an easily readable display much like the one on your vehicle’s dashboard.

Regarding this feature, the standout scanner was the OBDLINK MX+. First, the design uses a heads-up display similar to a dashboard gauge to show 13 specific and comprehensible parameters. Secondly, you can choose to monitor any of the vehicle’s sensors on a different screen. Lastly, it archives the data for all of the vehicle’s sensors.

Not only does it collect data from hundreds of vehicle sensors, but it also logs trip data, including GPS, trip distance, fuel economy, and more. It can be pretty useful for a scanner to be able to record what the sensors were doing during a trip and save that data into a log.

On the topic of live data, we need to mention how intricate and precise the Topdon TopScan OBDII Bluetooth Scanner can get. This little guy has the ability to actually adjust the air fuel mixture to your liking and perform compression testing on each cylinder — that’s a feature to entice a weekend racer on a budget.

Connectors for OBD2 Scanners

Ease of Use

When you first start using OBD2 scanners, it might feel that these are instruments reserved for the professionals. But modern-day scanners make it easy for any level of automotive enthusiast to use and even understand trouble codes. Each character-reader has step-by-step instructions and prompts to help walk you through connecting and scanning your vehicle.

When it comes to ease of use, the Bluetooth-compatible scanners really shine. To read error codes with these setups, you need to download the corresponding app for a compatible phone or tablet. Then, you plug the scanner into the OBD2 port on a vehicle and connect via Bluetooth. From here, the apparatus is controlled through the app, where the user interface is more vivid and comprehensive compared to the traditional wired scanners.

We found that the Bluedriver Pro and corresponding app were the easiest to operate. Reading and clearing codes was done via a simple menu. The mechanism provided obvious instructions for every step of the process. We had a plain-sailing experience with the app throughout different functions, and it offered a user manual that was readily available.

Screen Display

Connection

Each scanner connects to the vehicle’s OBD2 port via an OBD2 plug. The machine either utilizes a wire from the port to the scanner or a Bluetooth connection to a cell phone or tablet.