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20 Best Used Bidirectional Scan Tool of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best Used Bidirectional Scan Tool of 2023. Check our ranking below.

2,304 Reviews Scanned

SaleRank No. #1

TOPDON Bidirectional Scan Tool, 2024 New ArtiDiag900 Lite Automotive Diagnostic Tool for Full System, Scanner for Car with Active Test, 8 Reset, Wireless OBD2 Scanner Diagnostic Tool for All Vehicles

[2024 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 for a tablet-like user experience. Added bi-directional control, wireless diagnosis, battery testing (optional), and DTC repair guide, provide an unparalleled diagnostic experience at an affordable price.
[TOPDON's Newly 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.
[Newly Released 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.

SaleRank No. #2

GEARWRENCH Professional Bi-Directional Diagnostic Scan Tool | GWSMARTBT

OE-Level diagnostics on your smart device
FREE Software updates - No subscriptions, no fees – EVER
Full bi-directional control, live actuation test
Supports 23 vehicle reset/relearn functions, including throttle matching, ABS bleeding, TPMS reset, etc.
Live data mapping and freeze frame capturing

Rank No. #3

XTOOL D7 Bidirectional OBD2 Scanner: 2025 Scan Tool with ECU Coding, Full System Car Scanner Diagnostic Tool, 36+ Resets, Injector Coding, Throttle Relearn, Crank Sensor Relearn, FCA, CANFD & DoIP

2025 XTOOL D7 OBD2 Scanner – Enhanced Performance & Expanded Vehicle Coverage: The 2025 XTOOL D7 obd2 scanner diagnostic tool with bidirectional is perfect for both DIY enthusiasts and professional mechanics, offering faster diagnostics, longer battery life, and wider vehicle compatibility. Its upgraded 5000mAh battery (with 2500mAh 7.3V fast-charging) ensures all-day use. With new support for FCA, CAN FD, and DOIP, it covers more vehicle models. The enhanced V2.0 Diagnostic Report lets auto shops personalize reports with logos, customer details, and attachments, building trust, strengthening business identity, and providing personalized records for future reference
Save $500+/Year with Pro-Level Diagnostics: Whether you're a DIYer, starting a repair business, or beginning work at an auto shop, XTOOL D7 car scanner offers advanced features typically found only in expensive professional OBD2 scanners - without the high price tag. With 4,000+ Active Tests & Bidirectional Pids, ECU Coding, 36+ Special Functions, advanced module resets like SRS Reset, OE-level All-System Scan (one-click), FCA AutoAuth, CAN FD, DoIP, data export, and 8 PIDs graphing, the D7 auto scan tool covers 100,000+ vehicles (excluding Indian models). Includes 3-Year updates and supports the XV200 endoscope to detect em!ssions and intermittent issues.
Full Bidirectional Advantage Over Other Code Readers & Scan Tools: The XTOOL D7 automotive scanner offers true bidirectional control plus advanced bidirectional PIDs, letting you send commands to components like A/C clutches, fuel injectors, windows, fans and more, while monitoring sensor responses live to catch elusive issues (even those without warning lights). Unlike budget bidirectional obd2 scanners limited to basic active tests,the D7 car fault scanner gives you full bidirectional control to run ABS pump tests, throttle position, turn fan on/off and solenoid tests, etc. No guessing, no extra fees—just smarter diagnostics
OE-Level Full System Car Diagnostic Scanner with 8 Live Data Graphs: The XTOOL D7 is a pro-grade diagnostic tool that gives you full access to all vehicle systems—just like Snap on scanners & the factory scan tools, it delivers deep, accurate diagnostics you can trust. Easily view live data streams, retrieve freeze frame, and run active tests to pinpoint issues fast. With the ability to graph up to 8 PIDs at once, you can spot performance trends and troubleshoot like a pro. Whether you're a mechanic or car owner, with the D7 auto scanner you can stay ahead of problems and keep your vehicle running at its best
High-value Automotive Scanner Diagnostic Tool with 36+ Special Function, Resets, Relearns, Calibrations, Adaptations & Initializations: XTOOL D7 diagnostic tool packs 36+ common & advanced maintenance—skip the $150 fee for battery registration after replacement, throttle body relearn after cleaning, or TPMS resets post-rotation, Auto bleed after your pad changes, or Electronic Parking Brake. Need to reset your transmission after towing? Crank sensor relearn for GM or for Dodge? Done. D7 also covered advanced functions like Ad~blue Reset, VIN Write, and many more professional OBD2 scanner functions that we can't list here. Text us your VIN + what you need and we’ll check the compatibility

Rank No. #4

Thinkdiag2 All System Bidirectional Control OBD2 Diagnostic Scanner for iOS & Android, Bluetooth Scan Tool with CAN-FD Protocol, 15+ Reset Functions, ECU Coding, Active Test, AutoVIN, 1 Year Fr-ee

【Cost-effective OBD2 scanner】 Thinkcar Thinkdiag2 is the most powerful wireless diagnostic tool for it's price! Equipped with multi-functions of Newly added CAN-FD protocol, Bi-Directional control(Active Test), ECU coding, 15 Maintenance resets, All Systems diagnosis, Auto VIN, FCA AutoAuth, Unlock the protected FCA vehicle SGW module on Chrysler, Dodge, Jeep, Alfa Romeo, and Fiat vehicles manufactured after 2019.120+ Car brands coverage, No IP limited, etc. Good for workshops & DIYers. Kindly send us VIN to check compatibility before purchase
【OE-Level Full Systems Car Scanner with Added CAN FD Protocol】 Upgrade of Thinkdiag, Thinkdiag2 is a bluetooth diagnostic tool can diagnose Full System such as ECM, ABS, SRS, TCM, EPB, TPMS, SAS, A/C, BMS, etc. Thinkdiag2 can read/clear fault codes, read real-time data, read control module information,etc. As the only diagnostic scanner in this price range that supports the CAN-FD protocol, it suits for the latest GM(2019-) , saving $100 to buy a CAN FD adapter, reducing the risk of undetected errors to enhancing the user experience
【Bidirectional Test & ECU Coding】This bi-directional scan tool Thinkdiag2 allows you to send commands from your smartphone directly to the vehicle's ECU for active testing, quickly locate problem areas, such as A/C clutch, windows, doors, sunroof, etc., reducing the diagnostic time and money. ECU Coding allows you to refresh hidden functions to optimize vehicle performance, customize vehicles, match the replaced components with ECU. (Note: kindly send us VIN to check compatibility before order.)
【15+ Maintenance Functions】Thinkdiag2 OBDII code scanner is designed for individual car owners, DIYers, and small repair shops, which has a separate menu of 15 common special functions, such as Oil reset, EPB reset, SAS calibration, ABS bleeding, injector code, TPMS reset, etc. Enter from the all-system diagnostic menu to unlock more system special functions, and effectively handle the reset and relearn of most cars. Note: The Maintenance functions that each car can do may be different
【120+ car brands & FCA Autoauth+10 languages】Thinkcar thinkdiag2 helps you to troubleshoot the problems fast for 100 + US, European, Asian vehicle brands after 1996 that use the OBDII protocol. Only support 12V cars, including gasoline cars and diesel cars. Supporting Autoauth allows you to unlock the protected FCA vehicle SGW module on Chrysler, Dodge, Jeep, Alfa Romeo, Fiat vehicles, etc. (Note: Only provide AutoAuth login portal, and need purchase the registration number on the AutoAuth website by yourself.) Multilingual function allows workshop mechanics to avoid language barriers and use it around the world Without restriction

Rank No. #5

Autel Scanner MaxiCOM MK808S: 2025 Bidirectional Tool as MK808BT Pro MX808S M808Z, Work as MaxiCheck MX900 MK900BT, 28+ Service, Active Test, All System Diagnose, Injector Coding, FCA Autoauth OS 11

🔥🔥🔥【2025 NEWLY RELEASED BI-DIRECTIONAL CONTROL】As the 2025 upgraded version of MaxiChek MX808 MaxiDiag MD909 Pro MD906 Pro, our Newest MK808S auto diagnostic scanner for all cars inherits the powerful Bi-directional Control which makes it the most cost-effective scanner (without breaking the bank, same as MK900BT MS906 PRO MS906MAX). Active test is widely used on car subsystems to help you check if the car actuators are all in good condition. Such as windows, rear mirrors, sunroof, wipers...
【28+ MOST POPULAR RESET SERVICE FOR 150 MAKES】Autel versatile OBDII scanenr MK808S, full level-up of MX808, work as MX900, MK900, MK900-BT, supports 150+ car brands worldwide & FCA AutoAuth. Like the OBD2 code reader MaxiCOM MK808BT Pro, MK808S is equipped with 28+ hot services including Oil Reset, SAS Calibration, ABS Bleeding, Injector Coding, Battery Registration, etc. MK808S ranks top in professional automotive tablets and keeps updating to support more newer modes from 2024 to 2025.
【ALL SYSTEM DIAGNOSTICS, FACTORY-LEVEL SCANNER】The MK808S dealer-level scanner, like Snap-on tools, effectively works all cars for all system diagnostics. It reads/clears codes, provides ECU info, displays 5-in-1 Live Data, performs active tests, and special functions for all available modules. With a few clicks, you can easily understand the vehicle's condition. The convenient Wi-Fi printing feature allows you to generate a detailed report, highlighting the exact nature of the problem.
【AUTO SCAN & AUTOVIN, 10X FASTER】How much have you spent on car maintenance? Even a minor issue can take up a significant amount of time. The MK808S is designed to improve your work efficiency. With its AutoVIN technology, you can identify your car's make, model, and year information with just one click. The AutoScan feature automatically scans all of the vehicle's ECUs and detects any fault codes. Check AutoVIN compatibility by reaching us at 📞1-833-436-5880. Available Mon-Fri, 9 AM-6 PM EST.
【WHY MK808S STANDS OUT】✅Autel's escaner automotriz professional, MK808S, provides the same funcntions as the MK808BT PRO MK900 MK900-BT at a lower cost. MK808S not only helps you save on subscription expenses (124.5 USD vs. 150 USD) but also ensures flawless utilization of all functions even without updates. ✅As Autel's flagship model, MK808S is the upgraded version of the old MX808 MK808BT. It covers global coverage for 150 car brands, making it a versatile and cost-effective choice.

Last update on 2025-07-04 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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Romance University provides an Used Bidirectional Scan Tool buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Used Bidirectional Scan Tool currently available on the market.

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Brand Value: Every brand of Used Bidirectional Scan Tool has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
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Specifications: How powerful they are can be measured.
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FAQ:

Q: What is a bi directional scan tool?

A: A bi-directional scan tool is a unique diagnostic tool that can both send and receive information. With bidirectional control, these devices can send information to and receive information from a vehicles control module.

Q: What is the best automotive scan tool?

A: Top 5 Auto Scan Tools #1 – BlueDriver Bluetooth Professional OBDII Scanner #2 – Autel MaxiCOM MK808 OBD2 Scan Tool #3 – Autel Maxisys Elite Professional Auto Diagnostic Tool #4 – Autel Maxisys Pro MS908P #5 – Foxwell NT510 BMW OBD1 & 2 Car Scanner and Code Reader

Q: What is Tech 1 scanner?

A: A Tech 1 test basically is the very same like plugging an OBD scanner and going on an extended test drive monitoring ALL sort of engine-sensor data at various engine load- and rpm-conditions and of course also check the fault code memory (if there are any).

Q: Which OBD2 scan tool?

A: Overall, the best OBD2 scanner is the Innova CarScan Pro 5210 . It offers a relatively big color display and delivers a ton of useful data. The Innova provides code definitions to help you easily…

Used Bidirectional Scan Tool