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5 Best Diagnostic Test Tools of 2025

Last Updated - 2025/09/18

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

VDIAGTOOL

VDIAGTOOL Bidirectional Scan Tool VD70 Lite, 2025 Scanner for Car, OBD2 Scanner Diagnostic Tool, Full System Scan, 31+ Resets, CAN FD & DoIP

VDIAGTOOL

CA$493.99

More Details
Main highlights
- Stay Ahead with 31+ Reset for Faster & Easier Repairs: VDIAGTOOL VD70 Lite scanner for car meets almost all daily maintenance needs for both home mechanics and workshops as a professional automotive scan tool. It can perform Oil Reset, ABS Bleed, Crank Sensor Relearn, Idle Relearn, Injector Coding, Window Initialization, HVAC Calibration, Suspension Calibration, Throttle Matching, etc, ensuring efficient repairs and complete maintenance. Besides, long-term free updates keep its functionality and broad vehicle compatibility up to date.
- OE All Systems Diagnostics & 8-IN-One Data Graphing: VD70 Lite is a dealer-level car scanner diagnostic tool with Auto VIN that can do in-depth diagnostics for 100+ modern car brands, covering all systems including engine, transmission, airbag, ABS, ESP, TPMS, radio, etc, to read/clear code, view live data, freeze frame, and read ECU info. This advanced OBD2 Scanner with 8-in-one data graphing and detailed diagnostic reports makes data viewing more intuitive, ensures quickly accurate repairs by identifying issues, and easily masters the car situation.
- OBD2 Scanner with Full Bi-directional Control: The Bidirectional scan tool VIDAGTOOL VD70 Lite performs 4000+ active tests that can send execution commands to the ECU module and identify the repair status, covering for windows, doors, ABS, valves, wipers, headlights, rear mirrors, sunroof,and more in-vehicle components. This bidirectional OBD2 scanner is a must-have diagnostic tool for auto technicians and mechanics on a budget! The available function tests vary by model—please check compatibility via vdiagtool2 @ outlook . c o m before purchase.
- Long-term Free Updates, 1-Year Warranty & 24/7 Support: With ongoing free software updates, the latest features and optimizations allow VD70 Lite automotive diagnostic scanner to support more vehicles to meet your needs. It also comes with a 1-year warranty and a 30-day risk-free re*turn/replacement policy. We’re committed to providing exceptional user experiences, so don’t hesitate to reach out for any support via vdiagtool2 @ outlook . c o m.
- Built-in DoIP & CAN FD - Saving Time & $$$: The VDIAGTOOL VD70 Lite obd2 scanner diagnostic tool features support for DoIP & CAN FD, ensuring easy and quick communication. This comprehensive diagnostic tool supports CAN FD for GM MY2020+ and DoIP for BMW E/F/G Chassis, for Jaguar, and for Land Rover, providing 3X faster vehicle communication. No need for special adapters—eliminating extra costs and saving you over $100 while expanding compatibility with modern vehicles.
- Affordable Solution for Professional-grade Car Diagnostics & Repair: As the budget-friendly OBD2 scanner under $300, the VD70 Lite car diagnostic tool offers 31+ hot resets, full bi-directional controls with 4000+ active tests, all system diagnostics, 8-in-One live data graphing (export as CSV Export/Recording/Playback), CAN FD & DoIP protocols, and long-term free update. Additional features include Auto VIN & Auto Scan, diagnostic report sharing/printing, with coverage for over 10,000 vehicle models worldwide, which makes it perfect for DIYers, Car Owners, Technicians, and Mechanics on car repairs and maintenance tasks.
- 150+ Models, 10000+ Car Coverage & 23 Languages：As a powerful car computer diagnostic tool, VD70 Lite helps you to quickly troubleshoot issues for 95% of US, European, and Asian vehicles. Supporting 23 languages makes it a global car diagnostic scanner for auto mechanics worldwide without language barriers. Note: Simply provide your tool’s S/N and reach out to vdiagtool2 @ outlook . c o m to change the menu language.
CA$493.99
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

TOPDON

TOPDON Scanner AD800BT V2.0, Bidirectional Scan Tool, Full Systems Diagnostic Tool for All Vehicles, Automotive Diagnostic Scanner for Car, 28+ Services, FCA AutoAuth, CANFD, 2 Years Free Update

TOPDON

CA$469.99

More Details
Main highlights
- Wireless & AutoVIN: Wireless diagnostics with 33 feet (10m) range using the Bluetooth VCI dongle. TOPDON scanner AD800BT 2 uses AutoVIN technology, to provide quick and accurate car identification in one touch, without the manual input of vehicle make, model, and year data. AutoVIN may not work on all cars, but manual entry of VIN is available
- Vehicle Specialist: Stay ahead of the curve with the TOPDON AD800BT scan tool V2.0, engineered to handle modern vehicle complexities with ease, no extra adapters needed. Featuring the CAN FD protocol, this OBD2 scanner ensures compatibility with next-generation GM models, allowing faster and more reliable communication. The addition of FCA AutoAuth grants secure access to FCA vehicles, making previously restricted systems available at your fingertips
- User-Oriented Design and Interface: 1 years backup of product quality + 30 days unconditional return & replacement policy. The exclusive online feedback also gives timely help for DTC troubleshooting workflows, repair resources, maintenance schedules and more. Having this reliable TOPDON scan tool will make your mechanic jobs faster and more productive
- Portable Design with Long-Lasting Battery Life: Whether you’re in the workshop or out in the field, OBD2 scanner TOPDON AD800BT’s portable design and long-lasting rechargeable battery make it easy to take your diagnostic capabilities wherever they’re needed. The lightweight design enhances mobility, ensuring you can diagnose vehicles on the go
- Lightning-Fast Diagnostics for Time-Efficient Repairs: Designed for speed, TOPDON AD800BT 2 diagnostic automotive scanner delivers rapid scanning and diagnostic results, reducing vehicle downtime and allowing you to serve more customers efficiently. Its high-performance processor ensures that you won’t be waiting around for results. This TOPDON scan tool supports 10 languages for user convenience. 24/7 online support at support @ topdon. com
- Experience Enhanced Diagnostics with the New Bi-Directional Control on TOPDON ArtiDiag800BT V2.0: The upgraded TOPDON scanner is equipped with powerful Bi-directional Control (Active Test) capabilities! This new feature lets you take command of vehicle components in real time—activate solenoids, trigger actuators, and test sensors on demand. Easily perform advanced functions like ACC shut-off, window calibration, A/F reset, coolant bleeding, AdBlue reset, Stop/Start reset, and more—functions previously unavailable on earlier versions. Whether you're a pro technician or a serious DIYer, TOPDON AD800BT V2.0 gives you dealer-level control to pinpoint problems faster and fix them smarter
- Always Up-to-Date+2 Years free upgrades: TOPDON scanner ArtiDiag800BT 2 for car offers hassle-free software updates via WiFi, allowing you to access the latest diagnostic functions, expand vehicle coverage, and enhance system performance with just a single tap—no need for external devices or complicated processes. Keep your TOPDON OBD2 Scanner ahead of dealership tools without hidden fees
- All Available System Diagnostics: Analyze ECM, transmission, ABS, airbag, SAS, DPF, EVAP, TPMS, BMS, EPB, and more on-board systems with OE-level diagnostics. Pull and clear codes, turn off warning lights, check freeze frame data, and view live stream in detailed text or merged graph format. It is not a bi-directional scanner, active test is not available
- 28+ Factory-Grade Diagnostics & Resets: The TOPDON Scan Tool AD800BT 2 delivers 1-click diagnostics for 99% vehicles – clear check engine lights, read and clear codes in 3 minutes. Functions including Oil Reset, SAS Reset, EPB Reset, Tire Pressure Reset, Injector Coding, SAS Calibration, ABS Bleeding, DPF Regeneration, Battery Matching, Throttle Matching, Headlight Matching, Gearbox Matching, EGR Adaption, Tooth Learning, and Sunroof Initialization. Brands covered are continuously updated, catering to both professionals and DIYers
CA$469.99
3
20% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

ANCEL
20% Off

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Tool (Black)

ANCEL

CA$39.99

CA$50.00
(20% Off)

More Details
Main highlights
- Sturdy and Compact: Equipped with a 2.5 foot cable made of very thick, flexible insulation. It is important to have a sturdy scanner as it can easily fall to the ground when working in a car. The AD310 OBD2 scanner is a well-constructed device with a sleek design. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. Thanks to its compact design and light weight, transporting the device is not a problem. The buttons are clearly labelled and the screen is large and displays results clearly.
- OBDII Protocols and Car Compatibility: Many cheap devices do not really support all OBD2 protocols. This is not the case with the AD310 scanner as it can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This device also has extensive vehicle compatibility with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Check compatibility with your vehicle model before purchasing.
- Home Necessity and Worthy to Own: This is an excellent code reader to travel or home with as it weighs less and it is compact in design. You can easily slide it in your backpack as you head to the garage, or put it on the dashboard, this will be a great fit for you. The AD310 is not only portable, but also accurate and fast in performance. Moreover, it covers various car brands and is suitable for people who just need a code reader to check their car.
- CEL Doctor: The ANCEL AD310 is one of the best-selling OBD II scanners on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the check engine light coming on, quickly read and clear diagnostic trouble codes, read live data & hard memory data, view freeze frame, I/M monitor readiness and collect vehicle information. Instead of taking car to mechanic shop, you can use it to check the trouble code and show code definition by yourself.
- Accurate Fast & Easy to Use: The AD310 scanner can help you or your mechanic understand if your car is in good condition, provides exceptionally accurate and fast results, reads and clears engine trouble codes in seconds. If you want to find out the cause of the check engine light, this device will let you know immediately and fix the problem right away without any car knowledge. No need for batteries or a charger, get power directly from the OBDII Data Link Connector in your vehicle.
CA$39.99
CA$50.00 (20% Off)
4
Best Value
40% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

MOTOPOWER
40% Off

MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow

MOTOPOWER

CA$29.99

CA$49.99
(40% Off)

More Details
Main highlights
- Wide Capability - Supports 9 protocols compatible with most 1996 US-Based, 2000 EU-Based and Asian cars, and newer OBD II & CAN domestic or import vehicles. Supports 6 languages - English,German, Dutch, Spanish, French, Italian.
- Screen Protecting Film - There’s a transparent screen protecting film on the screen surface. If any scratches on the film, just tear off the screen protecting film. If any more problem on the screen, just contact our customer service for replacement directly.
- Multi-Functions - Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed.
- Connection Guide - Plug the scanner into the OBDII port on your car, turn on the ignition and then press the OK button to make the connection. To view the live data, please start the engine. If connection failure, please contact motopower directly for assistance.
- Compact Design - Car diagnostic scanner is equipped with a 2.5 feet long cable and made of a very thick flexible insulator.There are 6 buttons on OBD2 Scanner:scroll up/down,enter/exit and buttons that quick query VIN vehicle number& the DTC fault code.
- ABS / Airbag codes NOT Supported - It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.
- 2.8" LCD Display - Designed with a clear display 2.8" Large LCD screen - white backlight and contrast adjustment. No need any battery or charger, OBD reader gets the power directly from your vehicle through the OBDII Data Link Connector.
CA$29.99
CA$49.99 (40% Off)
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

TOPDON

TOPDON TopScan OBD2 Scanner Bluetooth, Bi-Directional Scanner Wireless All System Diagnostic Tool for iOS & Android, 8+ Hot Reset, Repair Guides, Check Engine Car Code Reader, Performance Test

TOPDON

CA$89.99

More Details
Main highlights
- Vehicle Coverage Lookup: Are you unsure whether the TopScan Lite scanner tool is compatible with your family's or friends' car models? We've got you covered! With the convenient TopScan Lite scanner compatible vehicle model table query function, you can easily verify compatibility with a single click. No more guesswork or uncertainty, get the answer Immediately.
- Subscription Fees: Topscan has two subscription options, choose the one that suits you best (quarterly/yearly), Topscan no subscription fees for the first year. If you don't subscribe for the second year, you can continue to use the I/M, Vehicle Performance, VE Calculation, Repair Library functions.
- More Personalization, Wide Car Compatibility: The 4-in-1 Data Stream function offers multiple display modes (graphs, numbers, dials) for easier data reading and comparison. One-click online upgrades ensure you always have the latest features. TopScan Lite diagnostic tool supports 100+ car brands and covers 10,000+ vehicle models. If you have any problems, please reach out to us at Support@Topdon.com and can also call us directly: US phone service 833-956-8335, Mon-Fri 9:00Am-18:00Pm Eastern time.
- Extensive Coverage, Seamless Access: Topscan provides comprehensive protocol support. It is compatible with FCA gateway unlock, Renault gateway unlock, and Nissan gateway unlock, allowing you to perform full diagnostics on these vehicles without restrictions. (Note: Gateway unlock access requires your own account). It also supports the CAN-FD protocol, making it compatible with more latest models for seamless diagnostics.
- Bluetooth Quick Pairing in Seconds: With the upgraded 5.0 Bluetooth system, TopScan Lite ensures a faster connection, eliminating the hassle of wires.The bluetooth pairing process needs to be completed in the application (IOS: TOPGURU&Android: TopScan). you can download our app from APP Store and Google play. (Tips: Cannot support 32-bit cell phones}
- Bi-directional Control, Quickly Locate Problems: The bi-directional scan tool enables you to send commands from your smartphone directly to the vehicle's ECU for active testing. This feature helps to quickly narrow down problem areas, such as A/C clutch, windows, doors, sunroof, etc., reducing the mechanic's diagnostic time and can help DIY users locate faults more easily. Additionally, TopScan Lite provides fault analysis and repair guidance, helping you solve problems efficiently.
- 8+ Popular Functions, Full System Diagnosis: TopScan Lite supports OBD2 full system diagnosis functions, including read/clear codes, ECU information,AUTO VIN, viewing real-time data, and active tests. It offers 8+ reset functions: Oil Reset, Throttle Adaptation, EPB Reset, Steering Angle Reset, DPF Regeneration, ABS Bleeding, BMS Reset, and Airbag Reset. By these functions, you can save on unnecessary repair costs and reduce repair times significantly.
- 4- Repair Guides, Your Online Assistant: TopScan Lite has launched 4 functions that are most touching for all car owners, DIY enthusiasts, and mechanics: TSB factory technical bulletins, easier and more convenient search. The OBD common fault code repair guidance, leading you to solve problems quickly. DLC diagnostic seat location, quickly positioning. Fault code database, telling you the reasons and solutions for all fault lights, saying goodbye to complicated methods.
CA$89.99

5 Best Diagnostic Test Tools of 2025

VDIAGTOOL Bidirectional Scan Tool VD70 Lite, 2025 Scanner for Car, OBD2 Scanner Diagnostic Tool, Full System Scan, 31+ Resets, CAN FD & DoIP

TOPDON Scanner AD800BT V2.0, Bidirectional Scan Tool, Full Systems Diagnostic Tool for All Vehicles, Automotive Diagnostic Scanner for Car, 28+ Services, FCA AutoAuth, CANFD, 2 Years Free Update

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Tool (Black)

MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow

TOPDON TopScan OBD2 Scanner Bluetooth, Bi-Directional Scanner Wireless All System Diagnostic Tool for iOS & Android, 8+ Hot Reset, Repair Guides, Check Engine Car Code Reader, Performance Test

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