Best OBD2 Scanner (2026): 9 Picks for Every Budget

The best OBD2 scanner for most drivers is the BlueDriver, a Bluetooth scanner that pairs with your phone, reads and clears codes beyond the engine on supported vehicles, and gives repair reports without a subscription. If you’d rather have a standalone handheld, the ANCEL AD410 PRO adds a battery tester, while the VDIAGTOOL VD10 is a simple, low-cost code reader. DIYers who want to command components for testing should look at bidirectional tools like the XTOOL A30M or TOPDON AD900 Lite.

Below are nine OBD2 scanners grouped by type, with the trade-offs for each.

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. This doesn’t affect which products we include or what we say about them.

Quick Comparison

BlueDriver OBD2 Scanner Bluetooth, No Subscription, ABS SRS TPMS | OBDII Diagnostic Scan Tool, Car Scanner & Code Reader, iPhone & Android, Check Engine, Repair Reports, Vehicles 1996+

XTOOL A30M Bidirectional Scan Tool, OBD2 Scanner Bluetooth, 26+ Resets & AI | AI Assistant Car Scanner, Lifetime Free Update, Professional Car Code Reader, EPB/Throttle/Crank Sensor Relearn, FCA & CAN FD

Product	Type	Best for	Main limitation	Check price
BlueDriver	Bluetooth + app	Best overall	Needs your phone	Buy on Amazon
XTOOL A30M	Bluetooth, bidirectional	Bidirectional, no subscription	App-based	Buy on Amazon
TOPDON TopScan Lite	Bluetooth, bidirectional	Low entry price for bidirectional	Subscription after year one for advanced features	Buy on Amazon
ANCEL AD410 PRO	Handheld + battery tester	Best handheld	Engine-focused	Buy on Amazon
VDIAGTOOL VD10	Basic handheld	Best budget	Basic features only	Buy on Amazon
FOXWELL NT301 Plus	Handheld + battery tester	Budget with battery test	Engine-focused	Buy on Amazon
Innova 5210	Handheld + battery tester	Brand-name handheld	ABS coverage varies	Buy on Amazon
FOXWELL NT604 Elite	Handheld, 4 systems	ABS, SRS, transmission	No bidirectional control	Buy on Amazon
TOPDON AD900 Lite	Tablet, bidirectional	Serious DIYers	Highest price here	Buy on Amazon

How We Chose These Scanners

This is a research-based guide; we haven’t tested these scanners on our own vehicles. We compared each manufacturer’s published features on their current Amazon listings, including which systems they read (engine only or also ABS, SRS, and transmission), live data, battery testing, bidirectional control, and subscription terms. We favored scanners with strong ratings and many owner reviews.

All of these use the standard OBD2 port. According to the California Air Resources Board, all 1996 and newer gasoline passenger cars and trucks are required to have OBD II systems, so most cars on the road today are compatible. Some features vary by make and model, so check compatibility for your vehicle.

Best Bluetooth (App-Based) Scanners

1. BlueDriver: Best Overall

Sale

BlueDriver OBD2 Scanner Bluetooth, No Subscription, ABS SRS TPMS | OBDII Diagnostic Scan Tool, Car Scanner & Code Reader, iPhone & Android, Check Engine, Repair Reports, Vehicles 1996+

[Diagnose Like a Pro] BlueDriver Pro is a professional OBD2 scanner and diagnostic tool that helps you scan, understand, and clear vehicle trouble codes with confidence. Turn your phone into a powerful car diagnostic scanner—no guesswork, no unnecessary repairs.
[Read and Clear More Codes Than Ever] Read and clear more codes than basic car code readers. Access enhanced diagnostics for Check Engine, ABS, SRS, Airbag, TPMS, Transmission, and more on supported vehicles, including expanded coverage on newer model years.
[Verified Fixes and Real-Time Data] Get unlimited, technician-verified repair reports matched to your VIN, with definitions, causes, and confirmed fixes. Monitor live vehicle data as you drive, view freeze frames, check smog readiness, and analyze Mode 6 test results.
[Expanded Make & Model Coverage] Optimized for today's vehicles with strong support for GM, Ford, Stellantis (RAM, Jeep, Chrysler), Toyota, Honda, Nissan, Mazda, Subaru, Hyundai, Mercedes-Benz, BMW, and VW. Enhanced communication on select 2024+ Nissan and Mazda models (see compatibility chart).
[Gas Vehicles 1996+ & Select Light-Duty Trucks] Works with all gas-powered vehicles made in 1996 or newer, plus select light-duty trucks and diesels, including F-250, RAM 2500, Silverado, and Sierra. Built for daily drivers, family vehicles, and real-world truck use.

BlueDriver turns your phone into a scan tool. It reads and clears check engine codes and, on supported vehicles, enhanced codes for systems like ABS, SRS (airbags), TPMS, and transmission. BlueDriver lists VIN-matched repair reports, live data, freeze frame, smog readiness, and Mode 6 results, with no subscription.

Consider: you’ll need a compatible phone, and enhanced coverage depends on your vehicle.

2. XTOOL A30M: Best Bidirectional Without a Subscription

Sale

XTOOL A30M Bidirectional Scan Tool, OBD2 Scanner Bluetooth, 26+ Resets & AI | AI Assistant Car Scanner, Lifetime Free Update, Professional Car Code Reader, EPB/Throttle/Crank Sensor Relearn, FCA & CAN FD

Stay Updated with Lifetime Access: This bluetooth obd2 scanner includes lifetime free software updates for all app service functions. With a single payment, enjoy full access to diagnostics, reset tools, and maintenance features — zero subscription fees. A budget-friendly choice for weekend mechanics, home car owners, and DIYers, supporting vehicles from 1996 onward. Come to us with your VIN to check compatibility.
Full Bidirectional Control/Active Tests & Stable Wireless Connectivity: This obd2 scanner diagnostic tool features full bidirectional control, allowing you to send commands to the vehicle's ECU for active tests on components such as fuel pumps, injectors, A/C clutches, windows, sunroofs, and more. This code reader for cars and trucks helps DIYers quickly diagnose and test vehicle parts, cutting down troubleshooting and repair time. With BT 4.0 wireless connectivity, you can enjoy cable-free diagnostics up to 33 feet. Stand in your garage and test windows, wipers, or even engine components—all without needing to move around your car.
Portable Car Scanner with 26 Resets: Scheduled vehicle maintenance with the A30M car diagnostic scanner can keep your vehicle in peak condition and save you big on dealership trips. The XTOOL A30M obd2 scanner diagnostic tool features essential reset and relearn functions, such as Oil Reset, EPB Reset (Electronic Parking Brake Release), SAS, ABS Brake Bleeding, Throttle Body Relearn, Injector Coding, Crank Sensor Relearn, Headlight Adjustment, and Tire Size Reset. Note: Service functions may vary by vehicle model – check compatibility before hand!
Wide Compatibility CAN FD & FCA Autoauth: This obd2 scanner diagnostic tool is compatible with over 85+ car brands from the U.S., Europe, and Asia, providing extensive coverage through a bluetooth connection with your smartphone or iPad. Now upgraded to support the latest protocols, it includes FCA AutoAuth access for Chrysler, Jeep, Dodge, and Fiat (2018+), and supports CAN FD for GM (2020+) models, giving you greater access to newer vehicles and systems. Note: The FCA AutoAuth account is not included with the device. Users must register and pay separately through the official FCA AutoAuth website to access diagnostic functions for vehicles that require it.
Up to 8 Live Data Streams Graphing – Real-Time Graphing for Deeper Insight: This code reader for cars and trucks supports up to 8 live data streams simultaneously with intuitive, real-time graphing. Gain comprehensive insights into your vehicle’s performance, making it easier to spot issues, detect trends, and make informed diagnostic decisions with confidence.

The A30M is a Bluetooth bidirectional scanner, meaning it can send commands to test components. XTOOL says it includes lifetime free software updates for its app functions with a single payment, and supports vehicles from 1996 onward. XTOOL suggests checking compatibility with your VIN.

Consider: bidirectional tests are powerful but best used by DIYers who understand what they’re testing.

3. TOPDON TopScan Lite: Cheapest Entry to Bidirectional Tests

Sale

TOPDON TopScan Lite OBD2 Scanner, Bidirectional Scan Tool, 8 Resets & AI | Repair Guides, AI Assistant, Bluetooth Car Scanner, Performance Test, FCA AutoAuth, CAN-FD, iOS & Android, 120+ Car Brands

Bi-Directional Control, Quickly Locate Problems: Turn your phone into a professional diagnostic tool. You can send commands from your phone to the ECU to test injectors, cooling fans, headlights, A/C clutch, windows, wipers, and more. See which one doesn't respond. Helps you quickly locate the problem and save time. No need to tear things apart, avoid blind disassembly.
Flexible Subscription: TopScan Lite includes continued access to core diagnostic functions such as full-system scanning, code reading, performance tests, and repair information. Advanced features—including bi-directional control, service functions, live data, code clearing, and AI features—are included for the first year. After the first year, you can choose a monthly, quarterly, or annual subscription to continue using advanced features. Vehicle coverage, reset functions, and software capabilities are continuously updated over time.
Full System Diagnostics, No Fault Hides: Unlike basic diagnostic tools that only cover 4 systems, TopScan can scan all systems. Read and clear trouble codes, view live data streams, and generate a complete vehicle health report – all issues are clear at a glance. Covers 10,000+ vehicle models and is compatible with 99.99% of vehicles.
AI Assistant - TopFix: Think of TopFix as your personal AI mechanic. It leverages a repair database and OEM data to deliver clear, step-by-step repair solutions. Features include AI Q&A, one-click translation, and a full repair log, making your diagnostic process simpler and more efficient.
8+ Hot Resets, Keep Your Car in Top Shape: One-tap resets for oil, throttle, EPB, steering angle, DPF, ABS, BMS, and airbag. It enables car owners to easily perform essential maintenance, ensuring the vehicle stays in optimal condition and extends its service life.

TopScan Lite plugs into the OBD2 port and pairs with your phone. TOPDON lists bidirectional control for testing things like injectors, cooling fans, and A/C clutches. Core diagnostics stay available, but TOPDON says advanced features such as bidirectional control and code clearing are included for the first year, then require a subscription.

Consider: factor in the subscription if you want advanced features long term.

Best Handheld Code Readers

4. ANCEL AD410 PRO: Best Handheld

Sale

ANCEL AD410 PRO OBD2 Scanner and Battery Tester, 2-in-1 Car Diagnostic Tool, Check Engine Light, EVAP Test, Live Data, 12V Battery Analyzer with Cranking & Charging System Test for Car Motorcycle

【2-IN-1 Engine Diagnostic & Battery Tester】: Upgraded from ANCEL’s best-selling AD310/AD410 series, the AD410 PRO obd2 scanner not only offers deeper, more accurate engine fault diagnosis but also covers battery health assessment, starter motor testing, and charging system evaluation. Skip buying separate tools—save money and space while eliminating the hassle of switching between different diagnostic scan tool
【Silence the Check Engine Light】: Panicked when the check engine light suddenly pops on? This car code reader decodes 42,000+ SAE DTCs in seconds (e.g. “P0300 – Multiple Cylinder Misfire”)—no confusing jargon. Read codes, understand the issue, then clear the light after fixing—so you avoid guesswork and unnecessary shop fees. NOTE: It DOESN'T support ABS, SRS, or Transmission systems
【Comprehensive Battery System Test】: Stop guessing why your car struggles to start—is it the battery, starter, or alternator? AD410 PRO goes beyond a voltage-only check by performing battery health, cranking, and charging system tests to pinpoint where the issue is coming from. Prevent unnecessary replacements and costly repeat repairs—know what's wrong and fix it right, without the guesswork
【Avoid a Smog Re-Test】: No more panic before emissions tests! The dedicated I/M Readiness mode of this professional obd2 scanner diagnostic tool instantly shows your vehicle’s compliance status (green = ready, yellow = incomplete). It covers core monitoring items (misfire, fuel system, catalyst, etc.) — fix potential issues in advance so you know you’re ready before you go, avoiding wasted time and extra inspection fees
【Live Data for Instant Vehicle Insights】: Don’t just read codes—see what your engine is doing in real time with this car scanner. Track 50+ key live readings with visual dashboards and waveform graphs to spot overheating, sensor issues, or fuel/air issues early. Freeze frame replays the exact moment a fault happened (speed/load/temp), so you know what triggered the check engine light—no more guessing

ANCEL’s AD410 PRO is a standalone handheld that reads and clears engine codes and adds a battery tester, plus starter and charging system checks. No phone or app required.

Consider: it focuses on the engine rather than systems like ABS or airbags.

5. VDIAGTOOL VD10: Best Budget Code Reader

VDIAGTOOL VD10 OBD2 Scanner Check Engine Code Reader Car Diagnostic Tool | Turn Off Engine Light/CEL, Live Data, Freeze Frame, I/M Readiness for All OBDII Protocol Vehicles, 12V Cars & Trucks Scanner

【A MUST-HAVE SCANNER TOOL FOR DIYERS】 - VDIAGTOOL VD10 car code reader is an incredibly useful, handheld obd2 scanner for each car owner or hobbyist, even for those with little to no experience when it comes to vehicle mechanics! Similar to a fixd car diagnostic tool, using this car diagnostic scanner is extremely easy. All you have to do is attach it to your car OBDII port and you can diagnose car problems in seconds! Read Codes (DTCs); Clear Codes; Live Data; View Freeze Frame; I/M Readiness; Vehicle Information.
【KEEP ENGINE IN GOOD STATUS】 - VDIAGTOOL check engine code reader brings a fast access to scan, read the car fault code, show its definition on the screen instantly, troubleshooting to find the root causes of problems, erase the engine fault code and turn off the MIL (Malfunction Indicator Light). Similar to a fixd car diagnostic tool, this car code reader helps ensure your engine stays in top condition.
【READ/CLEAR CODES & DTC LOOKUP】- No search online & saving your time, this vehicle car code reader retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes, pending codes and displays DTC definitions based on the built-in database(more than 3000 codes) on the TFT screen, find out the root causes and clear the codes after fixed.
【ENHANCED OBD2 SCANNER WITH LIVE DATA & RETRIEVE FREEZE FRAME】 - This diagnostic scan tool for accurate diagnosis enables you to retrieve data from vehicle sensors, such as Engine RPM, Intake air temperature, Short/Long term fuel, Misfire data and etc. The freeze frame is stored in the PCM together with the diagnostic trouble code (DTC) related to the fault. Comparable to a fixd car diagnostic tool, the VD10 car code reader car scanner can be a valuable & practical diagnostic aid and also greatly help when diagnosing intermittent problems.
【I/M READINESS for THE S-nn-0-g CHECK】- OBDII vehicle may not pass the annual inspection unless the required monitors since reset are complete. So you should at least read the readiness monitors and make sure they are ready. This car obd2 scanner diagnostic tool is equipped with I/M readiness function to check the operations of the e-m-issi0n system on OBD2 compliant vehicles, run I/M monitor readiness test, checking if the pass vehicle s-m-0-g inspection.

A simple, low-cost handheld that VDIAGTOOL lists with code reading and clearing, live data, freeze frame, and I/M readiness. It’s aimed at drivers with little mechanical experience.

Consider: it covers the basics, not advanced systems.

6. FOXWELL NT301 Plus: Budget Pick With Battery Test

Sale

FOXWELL NT301 Plus 2-in-1 OBD2 Scanner & 12V Car Battery Tester | Check Engine Code Reader, Live Data, Battery Health/Cranking/Charging System Test, Diagnostic Tool for 1996+ OBDII Vehicle

One Tool Solve Two Common Issues for Car — Same with NT301. Extra battery test. Upgraded from the NT301, the NT301 Plus code reader reads and clears engine codes just as fast as the classic you trust. But now, it also checks your 12V battery health. Think of the extra cost as cheap insurance against the high tow truck bill. As one user put it: "It paid for itself the first time I plugged it in." With a 36% larger 2.8” color display (vs. 2.4”), it delivers clearer results every time. Ideal for DIYers, car owners, home mechanics, used car inspection and anyone who wants to diagnose car issues with confidence before making a costly shop visit
Check Engine Light on? — Plug it in and the 2.8" color screen shows you the code and exactly what it means—no mechanic-speak, no decoding. You'll know what you're dealing with before you enter into a repair shop with this code reader for cars and trucks. Access live data like RPM, coolant temp, and fuel trim to pinpoint the problem. Saved money from taking it to the shop and spending over hundreds to figure out the reason. Pro Tip: You should fix the car issue before clearing the codes
Check Battery Health You Didn't Know You Needed — Don’t wait until your car won’t start. Taking few mintues to check battery health (SOH, SOC, cranking/starting power & charging system). Works with 12V lead-acid batteries: Flooded, AGM (flat/spiral), EFB, and GEL. This car battery tester will test your battery before daily commuting, road trips, after a jump-start, new battery keeps dying or vehicle sitting for weeks. Know whether to recharge, replace, or keep using your battery to avoid unnecessary battery replacement. Knowledge is power—and in this case, it's also a working car. Tips: Connect the battery cable firmly to the OBDII diagnostic cable to start battery check
See What Your Engine IS Doing — This car diagnostics scanner monitors real-time engine parameters to catch intermittent issues: RPM, sensor outputs, fuel trim, and more. The obd scanner supports data recording, playback, and PC printing of diagnostic reports—ideal for professional repairs faster and easier
Know Your S-m-o-g Status & Find EVAP Leaks — Whether you're buying used, chasing a stubborn check engine light, or just want to be sure you'll pass your next s-m-o-g check—this car scanner diagnostic tool scan gives you answers in minutes. Run the I/M readiness test, check for stored codes the seller didn't mention, and test battery health. Some of you used it on a car was about to buy, saw a stored code, and passed. That kind of information pays for itself. Also works for EVAP leak detection—loose gas cap or cracked hose, you'll know before the shop tells you

An upgrade to FOXWELL’s popular NT301, the NT301 Plus reads and clears engine codes, adds a 12V battery health check, and has a larger 2.8-inch color display.

Consider: like most budget handhelds, it focuses on the engine.

7. Innova 5210: Best Brand-Name Handheld

Sale

Innova 5210 OBD2 Scanner & Engine Code Reader, Battery Tester, Live Data, Oil Reset, Car Diagnostic Tool for Most Vehicles, Bluetooth Compatible with America's Top Car Repair App

OBD2 SCANNER & BATTERY TESTER IN ONE – The INNOVA 5210 OBD2 scanner not only reads and clears check engine light and ABS codes (coverage may vary) but also functions as a car battery tester to check alternator health and prevent unexpected breakdowns.
LIVE DATA & REAL-TIME DIAGNOSTICS – Get instant access to OBD2 live data, including RPM, engine temperature, fuel trims, and oxygen sensor readings. The drive cycle readiness feature helps pass smog tests and emissions inspections with ease.
ENGINE CODE READER – This automotive diagnostic tool works with most US, Asian, and European vehicles from 1996 and newer, including Toyota, Ford, Honda, Chevrolet, Nissan, Dodge, and more. Read and erase ABS (coverage may vary) and engine trouble codes with pinpoint accuracy. Please use Innova's Coverage Checker to verify coverage.
OIL RESET & SMOG CHECK READINESS – The built-in oil light reset feature allows DIYers and mechanics to properly reset maintenance lights after an oil change. Check I/M readiness status to ensure your car is ready for an emissions test.
NO SUBSCRIPTIONS – VERIFIED FIXES WITH FREE APP – Unlike other OBD2 code readers, the INNOVA 5210 provides verified fixes based on real-world repairs from ASE-certified mechanics. Trusted by 4M users, the RepairSolutions2 app on iPhone & Android gives you step-by-step repair guidance, suggested parts, and cost estimates—no extra fees or hidden subscriptions!

Innova’s 5210 reads and clears check engine codes and, according to Innova, ABS codes on some vehicles (coverage varies). It also tests the battery and alternator and shows live data.

Consider: check whether ABS coverage includes your vehicle.

8. FOXWELL NT604 Elite: Best for ABS, SRS, and Transmission

FOXWELL Car Scanner NT604 Elite OBD2 Scanner ABS SRS Transmission | Check Engine Code Reader for Cars and Trucks, Diagnostic Scan Tool with SRS Airbag, Automotive Diagnostic Tool with Live Data

[Easy to Use—Work Out of the Box] + [FOXWELL 2026 New Version] FOXWELL NT604 Elite scan tool is the 2026 new version from FOXWELL, designed for car owners who want to figure out the cause of issues before fixing car problems by scanning common systems like ABS, SRS, engine, and transmission. The NT604 Elite obd2 scanner diagnostic tool comes with the latest software—no need to waste time downloading software first. Plug the scanner into the OBDII port with OBDII cable to start the diagnosis.
[Affordable] + [Reliable Car Health Monitor] Will you be confused what happens when the warning light of ABS/SRS/transmission/check engine flashes? Instead of taking your cars to dealership, this FOXWELL scanner will help you do a thorough scanning and detection for your cars and pinpoint the root cause. Note：The device is a diagnostic tool, not a repair tool. To turn off a warning light, you must first physically repair the issue causing it. Only then can the scanner be used to clear the corresponding fault code.
[5 in 1 Car Diagnostic Scanner] Compared with obd scanners (50-100), NT604 Elite code scanner not only includes their OBDII diagnosis but also serves as ABS/SRS scanner, transmission and check engine code reader. When it’s an odb2 scanner, you can use it to check if your car is ready for annual test through I/M readiness menu. In addition, live data stream, built-in DTC library, data play back and print, all these features are a big plus for it. Note: doesn't support maintenance functions like reset or relearn. For the SRS system, NT604 Elite can read and clear common fault codes not caused by a crash, but crash/collision data cannot be cleared.
[Fantastic AUTOVIN] + [No extra software fee] Through the AUTOVIN menu, this NT604 Elite car scanner allows you to get your V-IN and vehicle info rapidly, no need to take time to find your V-IN and input one by one. What's more, the NT604 Elite ABS SRS scanner supports 60+ car brands from worldwide (America/Asia/Europe). You don’t need to pay extra software fee. AUTOVIN may not work on some older vehicles or certain vehicle brands. If AUTOVIN fails, please input the vin code manually or go to the Diagnostic Menu to select your vehicle model.
[Solid protective case KO plastic carrying bag] + [Lifetime update] Almost all same price-level car scanner diagnostic tool only offers plastic bag to hold the scanner.However, NT604 Elite automotive scanner is equipped with solid protective case, preventing your obd2 scanner from damage. Then you don’t need to pay extra money to buy a solid toolbox.

The NT604 Elite reads four common systems: engine, ABS, SRS (airbags), and transmission. FOXWELL says it ships with the latest software and works out of the box.

Consider: it doesn’t offer bidirectional control.

Best Tablet Scan Tool

9. TOPDON AD900 Lite: Best for Serious DIYers

Sale

TOPDON AD900 Lite OBD2 Scanner, Bidirectional Scan Tool, 8" Large Screen | 8 Resets, DTC Repair Guide, 10,000mAh Long Battery Life, Wireless All-System Diagnostics, FCA AutoAuth, CAN-FD, 120+ Brands

[2026 Top-Tier Hardware and Software Upgrade]: Topdon ArtiDiag900 Lite scanner has enhanced hardware and latest features, including Android 11.0, 5x faster CPU, 10000mAh battery for 12 hours of continuous operation, stable wireless diagnosis with Bluetooth 5.0, 8-inch touchscreen. Added bi-directional control, wireless diagnosis, battery testing (optional), and DTC repair guide
[TOPDON Bidirectional Scan Tool]: This bidirectional obd2 scanner sends commands to the vehicle's ECU for active testing, enabling users to accurately and quickly locate faulty components such as injectors, coolant pumps, windows, wipers, headlights, mirrors, etc. The bidirectional control scanner is the ideal choice for workshops/automotive repair shops as it significantly reduces mechanic's diagnostic time.
[Wireless Bluetooth Diagnostic Experience]: The AD900 Lite scan tool comes with a Bluetooth 5.0 VCI, supporting a wireless diagnostic range of up to 33 feet (10 meters), allowing you to diagnose without being confined to cables or tight spaces. Stable and fast wireless diagnosis provides a comfortable repair environment. It also offers VCI cables to increase connectivity options.
[DTC Repair Guide Function]: Easily diagnose issues with your vehicle and receive guidance on repairs with the topdon scan tool's fault code definitions for all systems,maximize your diagnostic capabilities. This function is compatible with Chrysler/Dodge/Jeep/Fiat 2010-2014 and expanding with continual updates,the AritDiag 900 Lite car diagnostic scanner is the must-have tool for any technician or DIY enthusiast.
[OE-Level Full System Diagnostics]:AritDiag900 Lite full system diagnostic scanner can scan ALL available modules(Engine, Transmission, Airbag, ABS, ESP, TPMS, Gateway, Steering, Radio, Air conditioning, ect.) to✔read ECU info, ✔read/clear codes, ✔view live data stream, ✔retrieves freeze-frame, ✔perform active tests, and more. With just a simple click, it provides you with accurate and in-depth diagnostics.

A full tablet-style scan tool with an 8-inch touchscreen, Android 11, a 10,000mAh battery, and Bluetooth 5.0 wireless diagnosis. TOPDON lists bidirectional control and a DTC repair guide.

Consider: it’s the most expensive scanner here and more than most casual drivers need.

How to Choose an OBD2 Scanner

Your goal	What to look for
Find out why the check engine light is on	Basic code reader with code definitions
Check if the car is ready for an emissions test	I/M readiness
Diagnose ABS or airbag warnings	Scanner that reads ABS and SRS for your make
Watch sensor data while driving	Live data and freeze frame
Test components yourself	Bidirectional control
Avoid ongoing costs	No subscription, or clear pricing

Also check: handheld vs phone app, screen size, update policy, and vehicle compatibility.

Our Final Picks

Best overall: BlueDriver
Bidirectional, no subscription: XTOOL A30M
Cheapest bidirectional: TOPDON TopScan Lite
Best handheld: ANCEL AD410 PRO
Best budget: VDIAGTOOL VD10
Budget with battery test: FOXWELL NT301 Plus
Brand-name handheld: Innova 5210
ABS, SRS, transmission: FOXWELL NT604 Elite
Serious DIYers: TOPDON AD900 Lite

Specifications, subscription terms, and prices change, so confirm details on the current listing before you buy.

Frequently Asked Questions

Will an OBD2 scanner work on my car?

Most likely, if it’s a 1996 or newer gasoline car or light truck sold in the U.S. Advanced features like ABS, SRS, and bidirectional tests vary by make and model, so check compatibility.

Is a Bluetooth OBD2 scanner as good as a handheld?

Often yes, and app-based scanners can offer more detailed explanations. A handheld doesn’t need a phone and is quicker for simple code checks.

Can an OBD2 scanner turn off the check engine light?

Most can clear codes, which turns off the light temporarily. If the problem isn’t fixed, the light will come back.

What does bidirectional mean?

It means the scanner can send commands to the car, such as activating a fan or injector, to test whether a component works.

The Bottom Line

For most drivers, a Bluetooth scanner like BlueDriver or a simple handheld like the ANCEL AD410 PRO answers the key question: why is the check engine light on? Step up to a scanner that reads ABS and SRS, or to a bidirectional tool, only if you plan to do more of your own repairs.

Best OBD2 Scanner: 9 Picks From Basic Code Readers to Bidirectional Tools

Table of Contents

Quick Comparison

How We Chose These Scanners