Having the best OBD2 scanner is like having a direct line to your car’s computer, unlocking a wealth of information about its health and performance. Whether you’re facing a mysterious dashboard light or just want to understand your vehicle better, an OBD2 scanner lets you diagnose issues yourself, potentially saving you money on professional mechanic fees.
However, the world of OBD2 scanners can be overwhelming, especially for beginners. With so many options available, finding the best OBD2 scanner for your money is crucial. We’ve rigorously tested a wide range of OBD2 scanners to identify the top performers that deliver excellent value without compromising on features and reliability.
From wireless wonders to budget-friendly basics and professional-grade powerhouses, our guide will help you navigate the choices and find the ideal OBD2 scanner that suits your needs and budget. Keep reading to discover our top recommendations and learn everything you need to know about OBD2 scanners and error codes.
Here are our top picks for the best OBD2 scanners for the money you can buy right now.
The Quick List
Based on our hands-on testing, here’s a quick rundown of the best OBD2 scanners that offer excellent value:
1. Topdon TopScan: Best Mobile Scanner for Comprehensive Diagnostics
This Bluetooth scanner is incredibly easy to set up and packed with professional-level features in a compact design. It provides in-depth diagnostics, repair guidance, parts lists, and even predictive analysis to anticipate potential problems.
2. Launch CR529: Best Cheap Scanner Offering Incredible Value
The Launch CR529 is a small but mighty OBD2 scanner that offers essential features and even some higher-end capabilities typically found in more expensive models. Its lifetime support and updates make it an unbeatable value for the money.
3. Topdon Phoenix Lite 2: Best Rugged Scanner for Professional-Grade Features
The Topdon Phoenix Lite 2, with its robust design and tablet-like interface, is built for both professionals and serious DIYers. It delivers powerful scanning capabilities and durability, making it a worthwhile investment for those seeking a high-performance scanner that can withstand demanding environments.
4. Ancel BD310: Best Dual-Purpose Scanner with Added Dashboard Display
The Ancel BD310 is a versatile OBD2 scanner that not only diagnoses car issues but can also function as an auxiliary dashboard display, showing real-time engine data. Its smartphone compatibility and affordable price make it a great value proposition.
5. Carly OBD-II Scanner: Best Scanner with Companion App for Enhanced Functionality
The Carly OBD-II Scanner shines with its exceptional companion app, offering a wide range of customization options and professional-level tests. The value you get from Carly depends on your car make, with brands like VW, BMW, and Ford benefiting the most.
What are the Best OBD2 Scanners for the Money?
Best Mobile OBD2 Scanner
1. Topdon TopScan
Perfect for Deep-Dive Car Diagnostics with Mobile Convenience
The Topdon TopScan may appear unassuming at first glance, but this compact scanner is packed with features that go far beyond your typical Bluetooth OBD2 module. It offers a comprehensive diagnostic experience, rivaling scanners in higher price brackets, making it an excellent OBD2 scanner for the money.
This isn’t just about reading fault codes. The TopScan excels in performance and efficiency checks, even estimating horsepower and torque – capabilities rarely found in scanners at this price point. Whether you’re aiming to optimize your car’s performance or ensure its roadworthiness, the Topdon TopScan is a valuable tool to have in your arsenal.
Specifications:
- Display/size: None
- Bluetooth/handheld: Yes/No
- I/M Readiness test: Yes
- Displays live data: Yes
- Number of keys: None
- Warranty: 2 year
- Size: 3.2 x 2.0 x 1.1 inches
- Weight: 2.6 ounces
Reasons to Buy:
- Excellent automotive diagnostic coverage
- Live data streaming
- Unique performance indicators
- Comprehensive maintenance item coverage
Reasons to Avoid:
- Transmitter is somewhat bulky
- Some advanced features require a subscription after the first year
The Topdon TopScan stands out as the best mobile OBD2 scanner for the money because it delivers professional-grade features in an easy-to-use, Bluetooth-enabled device. Its ability to perform advanced diagnostics and performance checks makes it a top choice for both casual users and car enthusiasts seeking in-depth insights into their vehicle’s operation.
Best Cheap OBD2 Scanner
2. Launch CR529
Unbeatable Value for Money in an OBD2 Scanner Under $50
The Launch CR529 redefines what you can expect from a budget OBD2 scanner. Priced under $50, it offers a surprising level of diagnostic features, making it arguably the best value OBD2 scanner available today. We were impressed by the sheer functionality packed into such an affordable device.
While compromises are inevitable at this price point, such as the absence of manufacturer-specific codes and a slightly heavier build, the CR529 still provides essential features like live data, instant inspection reports, and a detailed look into your car’s systems. The inclusion of lifetime updates further enhances its value, ensuring long-term usability without subscription fees.
Specifications:
- Display/size: Color/ 2.8-inches
- Bluetooth/handheld: No/Yes
- I/M Readiness test: Yes
- Displays live data: Yes
- Number of keys: 8
- Warranty: 1 year
- Size: 6.5 x 3.8 x 1.2 inches
- Weight: 11 ounces
Reasons to Buy:
- Extremely inexpensive
- Lifetime updates included
- Easy pre-inspection report generation
Reasons to Avoid:
- Lacks manufacturer specialty codes
- Feels somewhat heavy
- Limited 1-year warranty
For those seeking the best cheap OBD2 scanner that doesn’t skimp on essential features, the Launch CR529 is a clear winner. It provides excellent value for everyday car diagnostics and is a perfect entry-level tool for anyone wanting to understand their vehicle better without spending a fortune.
Best Pro-Level OBD2 Scanner
3. Topdon Phoenix Lite 2
Professional Diagnosis Capabilities for Serious Car Enthusiasts and Mechanics
The Topdon Phoenix Lite 2 represents a significant step up in OBD2 scanner capabilities, blurring the lines between amateur and professional diagnostic tools. While it comes with a higher price tag, it delivers exceptional features and performance that justify the investment for those serious about car diagnostics. It’s a top contender for the best professional OBD2 scanner for the money.
This scanner offers a completely wireless operation, with a Bluetooth receiver connecting the control pad to your car’s OBD port, providing unparalleled freedom of movement. Despite its robust and rugged design, it features an intuitive 8-inch touchscreen and a user-friendly interface. Beyond basic fault code reading, the Phoenix Lite 2 boasts advanced features like live data graphing and a wide array of diagnostic tests typically found in professional-grade equipment.
Specifications:
- Display/size: Color/8-inch
- Bluetooth/handheld: Yes/Yes
- I/M Readiness test: Yes
- Displays live data: Yes
- Number of keys: Touchscreen
- Warranty: 2 years
- Size: 10.2 x 7.2 x 1.7 inches
- Weight: 2.6 pounds
Reasons to Buy:
- Near professional-level OBD scanner capabilities
- Hybrid handheld with Wi-Fi and Bluetooth connectivity
- Large 8-inch touchscreen display
- Excellent suite of diagnostic tests and live data features
- Includes adapters and a hard case for protection
Reasons to Avoid:
- Bulky and heavy design
- More expensive than basic scanners
- Subscription required after two years for updates
The Topdon Phoenix Lite 2 is the best pro-level OBD2 scanner for the money for those who demand advanced diagnostic capabilities and robust performance. Its comprehensive features, wireless operation, and rugged build quality make it a valuable asset for professional mechanics and serious DIYers alike.
Best Dual-Purpose OBD2 Scanner
4. Ancel BD310
Two-in-One OBD2 Scanner and Auxiliary Car Display for Added Convenience
The Ancel BD310 offers a unique dual-purpose functionality, serving as both a standard handheld OBD2 scanner and a secondary display for your car’s vital engine data. Its versatility and ease of use make it a compelling option for those seeking more than just basic diagnostic capabilities in an OBD2 scanner for the money.
Operating as a traditional handheld scanner or connecting to your smartphone via Bluetooth, the BD310 is remarkably compact and lightweight, easily storable in your glovebox. While its 2-inch display is small and the four-key interface is somewhat minimalist, it effectively delivers essential diagnostic information and real-time engine parameters like coolant temperature, engine timing, and speed.
Specifications:
- Display/size: Color/2 inches
- Bluetooth/handheld: Yes/Yes
- I/M Readiness test: Yes
- Displays live data: Yes
- Number of keys: 4
- Warranty: 3 years
- Size: 5.1 x 2.4 x 0.6 inches
- Weight: 5.4 ounces
Reasons to Buy:
- Light and compact design for portability
- Functions as both a scanner and a secondary car display
- Offers handheld and Bluetooth scanning options
Reasons to Avoid:
- Minimalist interface may lack user-friendliness for some
- Small screen size
The Ancel BD310 is the best dual-purpose OBD2 scanner for the money, offering a unique combination of diagnostic and display functions in a compact and affordable package. Its ability to serve as a secondary dashboard screen adds extra value for drivers who want to monitor their car’s performance data in real-time.
Best Companion App OBD2 Scanner
5. Carly OBD-II Scanner
Enhanced Functionality and Customization with a Top-Tier Companion App
The Carly OBD-II Scanner distinguishes itself with its exceptional companion app, offering a user experience far beyond basic Bluetooth scanner apps. The value proposition of the Carly scanner is heavily reliant on its app, which unlocks a wealth of features and customization options, making it the best OBD2 scanner with a companion app for the money, especially for specific car brands.
The Carly app excels in diagnosing issues, clearing fault codes, providing repair guidance, and even offering tools to assess used car health. It also boasts customization features and professional-level tests, elevating it beyond a simple code reader. However, the functionality varies depending on your car make, with VW, BMW, and Ford models enjoying the most comprehensive features. While the initial scanner purchase is reasonable, accessing advanced features requires an ongoing subscription.
Specifications:
- Display/Size: No
- Bluetooth/Handheld: Yes/No
- I/M Readiness Test: No
- Displays live data: Yes
- Number of keys: None
- Warranty: Lifetime
- Size: 2.9 x 1.5 x 0.7 inches
- Weight: 0.7 ounces
Reasons to Buy:
- Easy-to-use and feature-rich companion app
- Extensive customization options available
- Live data display capabilities
- Maintenance and repair guidance integrated
- Lifetime warranty and updates for the scanner
Reasons to Avoid:
- Feature availability varies significantly across car models
- App subscription required for advanced features, adding to the overall cost
The Carly OBD-II Scanner, paired with its outstanding app, is the best OBD2 scanner for the money if you prioritize a seamless mobile experience and advanced features, particularly if you own a compatible VW, BMW, or Ford vehicle. Its companion app elevates the scanning experience, offering a level of functionality rarely found in other OBD2 scanner apps.
Other OBD2 Scanners We’ve Tested
Innova CarScan Mobile 1000 (★★★★☆)
The Innova CarScan Mobile 1000 is a standout Bluetooth OBD2 scanner, inheriting Innova’s renowned features, including predictive diagnostics, in a wireless format. Its incredibly simple setup process and robust feature set make it an impressive Bluetooth-only option.
ThinkCar ThinkDiag TKD01 (★★★★☆)
Despite its larger size for a Bluetooth OBD2 scanner, the ThinkCar ThinkDiag TKD01 boasts exceptional durability. It offers a wide range of manufacturer-specific error codes and extended fault-code capabilities, potentially resolving minor issues without mechanic intervention. However, a subscription is required after the first year.
Autel AutoLink AL539 (★★★☆☆)
The Autel AutoLink AL539 is specifically designed for diagnosing electrical problems, featuring a built-in multimeter. It excels at identifying issues like burnt cables, electrical shorts, and blown fuses. It also provides extensive live data and pre-inspection readiness checks.
Frequently Asked Questions
What is an OBD2 Scanner?
OBD2 scanners are diagnostic tools that mechanics and car owners use to access information from a vehicle’s onboard computer system. Instead of manually inspecting every component, mechanics connect an OBD2 scanner to the car’s OBD port to quickly identify problems.
At their most basic, OBD2 scanners read and interpret Diagnostic Trouble Codes (DTCs) flagged by your car when it detects an issue. More advanced scanners offer real-time system monitoring and even predictive analysis of potential future problems. Using an OBD2 scanner is a cost-effective way to understand your car’s health and address issues promptly.
What is the OBD2 Port?
The On-Board Diagnostics Version Two (OBD2) port is a standardized connector found in virtually all passenger vehicles sold in the United States since 1996, Canada since 1998, the European Union since 2004, and other regions like Australia, Mexico, and New Zealand from 2006 onwards.
This port serves as the interface point to access your car’s onboard computer. Various devices can connect to the OBD2 port, including OBD2 scanners, insurance telematics devices, and dashcams. Knowing the location of your OBD2 port is essential for using any of these devices effectively. If you’re unsure, you can easily find guides online for locating the OBD2 port in North American and worldwide vehicles.
What is a DTC?
DTC stands for Diagnostic Trouble Code. These are standardized error codes generated by a car’s OBD system when it detects a malfunction or issue. OBD2 scanners read these DTCs, allowing users to diagnose the nature and location of the problem within the vehicle.
While many DTCs are standardized across car manufacturers, some manufacturers also utilize proprietary DTCs specific to their vehicles. Understanding DTCs is key to interpreting the information provided by your OBD2 scanner and taking appropriate action.
What do DTCs Actually Mean?
DTCs may appear cryptic at first glance, consisting of a combination of letters and numbers. However, they follow a logical structure that reveals valuable information about the detected issue.
The first character indicates the affected vehicle system: Powertrain (P), Body (B), Chassis (C), or Network (N). The second character, a number, specifies whether the code is generic (0) or manufacturer-specific (1).
The third character further pinpoints the specific subsystem involved:
- 1: Fuel and air metering
- 2: Injector circuit for fuel and air metering
- 3: Ignition system or misfire
- 4: Auxiliary emissions control
- 5: Vehicle speed controls and idle control systems
- 6: Computer auxiliary outputs
- 7, 8, 9: Transmission and gearbox faults
- A, B, C: Hybrid-specific propulsion faults
The fourth and fifth characters provide further detail about the exact fault, ranging from 0 to 99. OBD2 scanners translate these codes into understandable descriptions. While basic scanners provide general explanations, advanced models offer more in-depth information. Online resources like Google can also be helpful in deciphering DTCs, as there are over 5,000 possible codes.
It’s important to note that not all DTCs indicate critical problems. While some signal major malfunctions, others may simply warn of minor issues like a slightly elevated engine temperature. Understanding the meaning of DTCs empowers you to assess the severity of the problem and decide on the appropriate course of action.
How to Choose the Best OBD2 Scanner for You
Choosing the best OBD2 scanner for your needs involves considering several factors to ensure you get the most value for your money. An OBD2 scanner is an invaluable tool for understanding your car’s health, whether you’re a seasoned DIY mechanic or a car owner wanting to be more informed.
OBD2 scanners generally fall into two categories:
- Handheld OBD2 scanners: These come with an integrated screen and a cable to connect to your car’s OBD port.
- Wireless OBD2 scanners: These plug into the OBD port and connect wirelessly via Bluetooth to a smartphone or tablet for displaying data.
Regardless of the type, many high-performance OBD2 scanners are available for under $200, with some basic models costing under $30. The key is to find the best OBD2 scanner that balances features, performance, and price effectively. Here are crucial criteria to consider:
- Easy Setup: A scanner that’s quick and easy to set up encourages frequent use, enabling early problem detection.
- Faults and Explanations: The best OBD2 scanners not only display fault codes but also provide clear explanations, empowering you to understand the issue and decide on DIY repairs or seek professional help.
- I/M Readiness Check: A valuable feature for ensuring your car passes emissions inspections by testing major engine and emissions systems.
- Accuracy: Accurate readings are paramount. Incorrect information is worse than no information, so prioritize scanners known for their reliability.
- Size and Weight: A compact and lightweight scanner is more likely to be kept in your car, readily available for on-the-go diagnostics.
- Live Data: Real-time monitoring of engine parameters like speed and timing helps diagnose intermittent issues effectively.
- Graphs: Visual data representation through graphs enhances understanding, especially when comparing data over time.
- Warranty: Opt for scanners with a good warranty, ideally lifetime, reflecting the manufacturer’s confidence in the product’s durability and longevity.
When selecting an OBD2 scanner for the money, prioritize the features that align with your needs and technical expertise. Consider whether you prefer the convenience of a wireless scanner with smartphone integration or a standalone handheld unit. Look for features like lifetime software updates to ensure your scanner remains compatible with evolving automotive technology. For handheld scanners, prioritize screen size and clarity for easy readability. Ruggedness and durability are also important, especially for those working in demanding environments.
Some scanners offer additional features like built-in multimeters, manufacturer-specific code reading, and PDF report exporting. These extras can add significant value depending on your specific needs. Ultimately, the best OBD2 scanner for the money is one that provides the right balance of features, performance, and price for your individual requirements. With prices often less than an hour of labor at a mechanic, investing in an OBD2 scanner can be a smart financial decision for car owners.
How We Test OBD2 Scanners
To rigorously test OBD2 scanners and determine the best options for the money, we employ a hands-on approach using a real vehicle – a 2014 Audi A4 Allroad. We evaluate scanners in both garage and on-road conditions over several weeks.
Our testing process includes:
- VIN Verification: We first ensure each scanner accurately reports the car’s Vehicle Identification Number (VIN) to confirm proper vehicle identification.
- Connectivity Testing: For wireless scanners, we assess Bluetooth and Wi-Fi connection stability and range using devices like Apple iPads, Microsoft Surfaces, and Samsung Galaxy smartphones. Handheld scanners are tested for cable length and ease of connection to the OBD2 port.
- Live Data Monitoring: With the engine running, we monitor vital engine systems and parameters using each scanner, observing data accuracy and refresh rates.
- Fault Code Generation and Reading: We simulate a fault by disconnecting the engine’s oil temperature sensor and evaluate each scanner’s ability to detect, report, and explain the generated fault code.
- Fault Code Clearing: After reconnecting the sensor and resolving the simulated issue, we test each scanner’s ability to clear the “check engine” light and erase the stored error code.
- On-Road Data Display: During test drives, we assess the scanner’s ability to display real-time operating data like engine speed, timing, and coolant temperature, noting data presentation formats (numbers, graphs, gauges).
- DTC Code Interpretation: We analyze the detail and clarity of fault code explanations provided by each scanner, considering their helpfulness for users in understanding and addressing car issues.
Our comprehensive testing methodology ensures that our OBD2 scanner recommendations are based on real-world performance and provide valuable insights into which scanners offer the best features and value for the money.
