Aug 22, 2020

Best Diagnostic Scan Tools Review & Buyer’s Guide 2021

best diagnostic scan tools are one of those things that seem like they’re probably all the same. To help you choose the best diagnostic scan tools for your job, we’ve put together this comprehensive guide for best diagnostic scan tools. It’s not going to consider absolutely every possible material combination or bonding factor, but we will try and cover as much as possible.

In a Hurry !! and want a quick review here is our editors pick

Editor’s Pick

Autel MaxiCOM MK808 Diagnostic Diagnosis

Top 10 diagnostic scan tools


4.4 out of 5 stars, 253 customer reviews Check Best Price

4.8 out of 5 stars, 405 customer reviews Check Best Price

4.1 out of 5 stars, 1509 customer reviews Check Best Price

4.6 out of 5 stars, 2032 customer reviews Check Best Price

4.6 out of 5 stars, 112 customer reviews Check Best Price

4.2 out of 5 stars, 48 customer reviews Check Best Price

4.6 out of 5 stars, 52 customer reviews Check Best Price

3.9 out of 5 stars, 67 customer reviews Check Best Price

4.2 out of 5 stars, 3632 customer reviews Check Best Price

4.2 out of 5 stars, 207 customer reviews Check Best Price

Best diagnostic scan tools

1. Autel MaxiCOM MK808 Diagnostic Diagnosis


Autel MaxiCOM MK808 Diagnostic Diagnosis
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  • SPECIAL FUNCTIONS: The MK808 diagnostic tool with specific IMMO function protects car from being stolen as it can clear and program new key , TPMS service enables you to relearn TPMS sensors and store the replaced one(Autel sensor only).
  • SUPERIOR FEATURES: This scan tool is built with OLS/EPB/SAS/DPF/BMS Service for all around protecting your car system.
  • COMPLETE DIAGNOSTIC FUNCTIONS: Reads and clears codes for all systems with wide car model coverage, which can detect your car fully; displays live data in text, graph and analog make you review data easily.
  • ADVANCED HARDWARE: For this autel OBD2 scanner, the combination of MD802 and MaxiCheck Pro, with an A9 processor, 7-inch LCD touch screen and 32G memory ensures you the maximum speed of diagnosis and convenience of quick operation.
  • WARRANTY & UPDATE: You can enjoy 12-month warranty; besides, 12 months free online update is available for the latest bug fixes, newly added car models software and functions.

2. kungfuren Universal Automotive Analyzer Diagnostic


kungfuren Universal Automotive Analyzer Diagnostic
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  • ➤【POWERFUL COMPATIBILITY & COMPACT DESIGN】 Universal OBD2 Scanner works on MOST 1996 US-Based cars SUVs Light Trucks, 2000 EU-Based and Asian cars, vehicles with all OBD2 protocols CAN, ISO9141, J1850 VPW, J1850 PWM, KWP2000. Supports up to 6 languages: English, German, Dutch, Italian, French and Spanish. With a compact size, easy to hold and carry. Please Note: This OBD2 scanner only supports petrol vehicles.
  • ➤【PRACTICAL & MULTI-FUNCTIONS】 OBD2 code reader features built-in OBD2 DTC lookup library, 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. Convenient and practical, great for the car owners.
  • ➤【EASY TO OPERATE】 No need any battery or charger, this OBD reader gets the power directly from your vehicle through the OBD2 Data Link Connector. Just simply plug in the OBD interface to start diagnosis. There are 6 buttons on OBD2 Scanner: scroll up/down, enter/exit and buttons that quick query VIN vehicle number& the DTC fault code. Very easy to operate.
  • ➤【ACCURATE & EASY TO READ】 Designed with a large clear LCD display screen, which is with white backlight and contrast adjustment for direct display test results, accurate and easy to read. Even a beginner can use this OSD2 Scanner to read the error code, find out what the problem is and perhaps fix it. Save your money and time.
  • ➤【COMPACT & PORTABLE】 The handheld and compact design OBDII code readers is portable, Makes it simple-to-use and easy to handle with an anti-skid surface while diagnosing. And the small size means that you will be able to store the tool without encountering any sort of hassle. The OBD2 code reader is equipped with 2.5-feet long cable enables you to sit comfortably running diagnostic test. Please NOTE: The OBD2 is valid only for the engine system, not for airbags, ABS and other systems.

3. OBD2 Scan Tool Diagnostic Professionals


OBD2 Scan Tool Diagnostic Professionals
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  • ✔ ACCURATE RESULTS – Remove all check engine lights instantly! Transform your car into a Smart Car with this car diagnostic tool by KOBRA. With a database of over 3000 code definitions, this premium OBD2 Scanner reads generic and manufacturer-specific trouble codes and diagnoses your car like a pro.
  • ✔ CHECK ENGINE LIGHT ELIMINATOR – This Auto Scanner and Car Scan Tool retrieves both generic, as well as car manufacturer-specific Diagnostic Trouble Codes (DTC), helping you overcome any troubleshooting with ease. You will be able to clear the “Check Engine” light indication and other trouble codes, effortlessly!
  • ✔ DIAGNOSE IN SECONDS — Don’t be taken advantage of again! Know what is wrong your car before taking it to a mechanic. Unlike other car code readers, our obd 2 scan tool is an all in one car code scanning tool. All you need is to attach the wired connection and you can diagnose any car problem in seconds!
  • ✔ MECHANIC APPROVED – The KOBRA OBD2 car diagnostic code reader works with all 1996 – 2016 vehicles and is seamlessly compatible with ALL OBDii / EOBD compliant US, European and Asian vehicles. OBD2 is standard on all cars sold in the US since 1996. Supports CAN, VPW, PWM, ISO and KWP 2000 protocols.
  • ✔ 100% RISK FREE PURCHASE – Providing you with the friendliest customer service is our primary goal. This is why we offer you a 1 year money back guarantee in case our automotive scanner does not live up to your expectations, no questions asked!

Also Check Out List of Best Holmes Indoor Heaters

4. Autel MS309 Universal Readiness Diagnostic


Autel MS309 Universal Readiness Diagnostic
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  • TURN OFF CHECK ENGINE LIGHT: Autel MS309 OBDII scanner is an easy-to-use plug-n-play check engine code reader that read and clear codes. This little code scanner retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes, and pending codes and displays DTC definitions on the TFT color screen. It can check engine related fault codes, easily find out what caused the check engine light comes on, turn off MIL light(Malfunction Indicator Light).
  • FREEZE FRAME DATA FOR ACCURATE DIAGNOSIS: This MS309 check engine code reader comes with viewing freeze frame function that enables you to retrieve data recorded in the ECU of the condition under which the fault occurs to figure out why the check engine light is on and cut down test drive cycle verification time. It includes important engine parameters such as RPM, vehicle speed, mass airflow, engine load, fuel pressure, short/long term fuel trim, engine coolant temperature and etc.
  • READINESS STATUS TO PASS SMOG CHECK: The Autel MS309 car diagnostic scanner tool comes with I/M Readiness function to check the operations of the Emission System on OBD2 compliant vehicles. It includes vehicle-specific number of monitors like misfire monitor, fuel system monitor, comprehensive components monitor, O2 sensors, EVAP system and etc, making this OBD2 scan tool an excellent scan tool to help get your vehicle ready to pass the annual smog check.
  • UNMATCHED COMPATIBILITY: Autel MS309 compact pocket code reader supports all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN. This OBD2 code scanner is compatible with all OBDII-Compliant vehicles, passenger cars or light trucks, post 1996 in US, post 2000 for EU-based and Asian cars.
  • RETRIEVE VEHICLE INFO: The Autel MS309 automotive OBD2 scanner enables retrieval of the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is most useful to check whether the ECU matches your car when you are buying a used car. The MS309 auto car scanner comes with LIFETIME FREE software updates and is backed by 45 Day Money Back and 12 Months US Seller . Purchase now and go fix something!

5. LAUNCH Automotive Diagnostic Transmission Throttle


LAUNCH Automotive Diagnostic Transmission Throttle
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  • 【UPGRADED VERSION OF CRP129】: This scan tool is built with a larger 5” touchable HD 720P screen and keypad design for better operation,there are 2 more reset services (TPMS & Throttle Body Reset) compared with CRP129, AutoVIN and automatic printable Inspection report help you get diagnostic information efficiently and effectively
  • 【FOUR SYSTEMS DIAGNOSIS+ BATTERY VOLTAGE TEST】: This diagnostic obd2 scanner works for Engine, Transmission, ABS and SRS diagnoses, thus reading/clearing diagnostic trouble codes, showing live data stream, turning off the warning light related, besides,with the battery voltage test, you are able to monitor the battery voltage timely
  • 【5 RESET SERVICES + AUTOMATIC AUTOVIN SCAN】: This code reader covers 5 most commonly used special reset functions including OIL/EPB/SAS/TPMS reset, and Throttle Adaptation to maintain your vehicle systems safely and efficiently, with the Automatic Autovin Scan, you may easily get the VIN
  • 【FULL OBD2 COMPLIANCY + DATA RECORD & PLAYBACK】: This diagnostic tool supports all 10 modes of OBDII functions such as I/M Readiness Status, Live Data Graphing, MIL turn-off, etc., and works on most vehicles after 1996 compliant with OBD2 protocols , more than 57 brands. Data record,playback and printable Inspection report (share via email) make diagnostic information easily at your hands
  • 【ONE CLICK FREE UPDATE+ 9 LANGUAGES】: This diagnostic automotive scanner comes with the 12-month warranty for any quality problem. One-click WiFi free updates on internet for lifetime along with multilingual support: English, Spanish, French, German, Italian, Russian, Portuguese, Japanese, Korean, etc.,

6. FOXWELL NT614 Elite Transmission Maintenance


FOXWELL NT614 Elite Transmission Maintenance
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  • 🚗【TCM ABS SRS Engine Diagnostics】Covering the diagnostics of the main four automotive systems, which are transmission, ABS, airbag and engine systems, the newest 2019 Foxwell NT614 Elite code reader is presenting itself with greater compatibility and more powerful data detection for almost all car makes.
  • 🚗【EPB & Service Due Reset】Apart from scanning TCM, ABS, SRS and full OBDII functions, the oil light reset and EPB service features are truly additional value of NT614 Elite diagnostic tool compared with other similar products on the market, making it worthier to own.
  • 🚗【Greater OBD Compatibility】The enhanced NT614 elite OBD2 scanner not only covers both OBDII and OBDI vehicles after 1996, as well as the latest 2018/2019 cars, trucks, diesels, SUVs, vans, etc. (Please note, the year supported may vary on different car makes and models.)
  • 🚗【Live Data Merging】 NT614 Elite car scanner shows you live sensors data and provides data graphing, and two PID graphs can be merged for easy and intuitive diagnostics. In addition, one-key auto VIN reading, 4.3’’ color screen, menu-driven operations, multilingual menu options make better user experience.
  • 🚗【Worry-free Tool】NT614 Elite scan tool has a 1-year quality assurance. Carried with its FREE durable protective case, the tool is preventive from dust and fall, daily wear and tear. Besides, FREE 16G memory card and USB cable offers FREE LIFETIME UPDATE. Moreover, backed by professional tech and service team, just contact us directly, all your issues will be well resolved.

7. LAUNCH Transmission Diagnostic 7 0 Based Touchscreen


LAUNCH Transmission Diagnostic 7 0 Based Touchscreen
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  • 👍【UPGRADED VERSION OF CRP123】 Launch CRP123X scan tool is built with a larger 5” touchable HD 720P screen and keypad design for better operation and will work better on ENG/TCM/ABS/SRS as Read/clear/records data, turning off system warning lights, Graphing live data, AutoVIN, I/M readiness, DTC Lookup, Support more vehicles, Generate Diagnostic report, Read main Infor of ECU, One-Click Lifetime Free Update via WiFi etc.
  • 👍【FOUR SYSTEMS DIAGNOSTICS + AUTOVIN SCAN】This code reader not only include OBD/EOBD standard protocol diagnosis but also provide 4 ECU systems( Engine/Transmission/ABS/SRS) to read/clear codes, viewing live data stream(displayed in graphic), and turning off system warning lights. 【AutoVIN 】automatical fastly retrieves vehicle VIN for troubleshooting accurately. Note: LAUNCH 123X code reader ONLY supports cars from 2005 and newer for ABS/SRS/ Transmission system.
  • 👍【DATA RECORD & REPORT & PRINT + BATTERY VOLTAGE TEST】This car scanner can ability to graph, data record, playback, print report (share via email) for further analysis, 【📧 Diagnostic Report automatically records the basic diagnosis report, will help users avoid blind maintenance, saving money/time make diagnostic easily. 【FEEDBACK】will provide best-possible solutions for your issues in time.【Battery Voltage service】monitors real-time battery voltage of 12V vehicles in graphical.
  • 👍【FULL OBDII DIAGNOSIS + FREE LIFETIME UPDATE】This obd2 scanner featuring complete 10 functions of OBDII test with Live PCM Data Stream in graphics formats, Read/Clear DTCs and do smog test, I/M readiness, O2 sensor tests, read freeze frame data, EVAP system test, retrieves vehicle info, Malfunction Indicator Light (MIL) etc.【One-Click Lifetime Free Update via Wi-Fi】 extend its using life and ensure the data is accurate
  • 👍【WIDE VEHICLE COVERAGE + 9 LANGUAGES + 5 YEAR WARRARY】This scan tool for OBD1,OBD2,EOBD,JOBD,KOBD 12v cars SUV, light truck and hybrids can work on most 1996 and newer OBDII-compliant vehicles in US, Europe, Asia, with over 57 car brands and up to thousands of models. Beside, LAUNCH obd2 scanner for car supports 9 Languages, as English, Spanish, French, German, Italian, Russian, Japanese, Korean, Portuguese. 5 YEARs after-sale-service for any question.

8. FOXWELL NT624 Elite Automotive Full System


FOXWELL NT624 Elite Automotive Full System
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  • 🎉【2019 Upgrade–New Arrival Foxwell NT624 Elite】 Foxwell painstaking research, meticulously crafted, and finally bring NT624 ELITE Scan Tool to you. 3rd generation Core processor and 4 times RAM expansion greatly-improved speed, plug and read! Support 1996 US-based, 2002 EU-based, 2005 Asian-based or newer OBD II & CAN domestic or import vehicles.
  • 🏆【All Systems Diagnostics】New feature Auto VIN supports one-click vehicle details reading. Foxwell NT624 elite is a full system car scanner with Engine, Transmission, Airbags, BMS, ABS, TPS, DPF, TPMS, DSC, DME, DISA and all the other Systems meeting all your expectations for a diagnostic scan tool. Live data in text and graph format allows you to focus on any suspicious or symptom-specific data.
  • 🥇【Full OBD2 Functions】It supports all OBD I/OBD II/EOBD code reader and all 10 test modes including read error codes, clear codes, live data, O2 monitor test, on-board monitor test, and vehicle information. Playback and data print are also available. (Please note, obd2 enhanced test is not supported on all makes.)
  • 🎁【Special Functions】Bonus features such as Oil Service reset, EPB service. Allows you to perform service and maintenance. FOXWELL NT624 elite automotive code reader is compatible with almost all OBDII cars, SUVs, minivans, light-duty trucks sold worldwide. Ability to quickly read and clear all system fault codes in 61 manufacturers for American, Asian, and European vehicles. ( Covering the lastest 2018/2019 car makes, it will work right out of box! )
  • 💯【Lifetime Internet Free Update】With internet access, you can always have the latest bug fixes, new vehicles, newly added parameters and functionality at your fingertips. One-year is offered, and return it whenever you want, it is well worth a try!

9. FIXD Professional Bluetooth Reader Android


FIXD Professional Bluetooth Reader Android
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  • Powerful Check Engine Light Diagnostics – Read and diagnose your check engine light, understand the severity of the issue, and clear that pesky light from your vehicle. FIXD translates your vehicle into simple English, empowering you to make the easy fix in many cases & saving you precious time. FIXD also saves you money by providing you with estimated repair costs up-front, allowing you to feel more confident during those trips to the mechanic
  • The Trusted Choice – FIXD is the professional choice proudly designed in the USA by Professional Engineers and ASE Certified Mechanics. Get unlimited access to over 10,000 manufacturer specific and enhanced trouble codes (ABS, Airbag, TPMS, and Transmission*). With the App, you’ll have freeze frame data, live diagnostic data, and proactive vehicle maintenance reminders at your fingertips. All the capabilities of an expensive Scan Tool at a fraction of the cost
  • Easy & Intuitive – The powerful FIXD OBD-II Diagnostic Sensor and the professionally designed FIXD App are the perfect pair. The FIXD Code Reader is light & compact, remaining out-of-sight during your drive. The FIXD Sensor connects to the FIXD App via Bluetooth in seconds, providing you with a suite of resources easy enough for anyone to use
  • We’ve Got You Covered – The FIXD OBD 2 Scan Tool is compatible with all gas-powered vehicles made after 1996 (no all-electric or diesel) and works with all vehicle protocols. Works with iPhone, iPad, and Android devices
  • Go further with FIXD Premium– Upgrade your in-app experience with: Cost and repair estimates from the Identifix database, Unlimited calls to our FIXD Mechanic Hotline for a trusted second opinion and DIY help from our network of ASE certified mechanics, And much more! FIXD Premium is a monthly subscription that is optional and is not required for use of the sensor

10. Ysding Enhanced Universal Diagnostic Suitable


Ysding Enhanced Universal Diagnostic Suitable
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  • FEATURES AND MUTI-FUNCTIONS: As a professional car engine diagnostic tool, this code reader can read fault codes; Easily determines the cause of the Malfunction Indicator Light( MIL); Displays I/M Readiness; Turns off MIL; clears codes and resets monitors ; Detect the vehicle battery condition; Build-in Lookup Library; Views Freeze Frame Data; Reads Live PCM Data Stream, etc.
  • EASY AND COMPATIABLE: Connect to your vehicles then quickly identify error codes, also available for beginners. The obd code reader can works on most 1996+ US-Based OBDII, 2000+ EU-Based EOBD and Asian petrol cars, supports 5 protocols including ISO9141, KWP, J1850 PWM, J1850 VPW and CAN, etc. Retrieves generic (P0, P2, P3, and U0) and manufacturer specific (P1, P3, and U1) codes.
  • INTEGRATED ATTRIBUTES: This obd ii diagnostic tool equipped with a large LCD display with backlight and contrast adjustment, unit conversion between English and Metric. Displays DTC definitions on the 2.4 inch LED screen. Supports various languages: English, Spanish, French, Russian, Germany, Italian, etc.
  • HIGHLIGHTS AND CHARACTERISTICS: This obd2 diagnostic tool Build-in One-Click I/M Readiness function for quick State Emissions readiness check and drive cycle verification. Retrieves vehicle information(VIN, CIN and CVN) and Reads live data stream. This car scanner built-in OBD2 DTC lookup library, show the code and what the code means directly within 5 seconds. No need for a battery, connect to the OBD interface directly to start diagnosis.
  • 3 YEAR WARRANTY: 60 days FREE replacement or return. Our OBD II–Tiny design: light and portable, a vital& necessary car tool in your tool box, save money and time! Any question, please feel free to contact CRTing Service Team, Customer Satisfaction is our forever goal!

Final Verdict

So those were some of the diagnostic scan tools in market. Overall, all of these diagnostic scan tools come with their uniqueness. And all of them has its own features. So go ahead and check all of them and see which one is working the best for you. Then compare the diagnostic scan tools and see which one is the best option for you. Also, if you have any more questions to ask. Then do feel free to comment below and I will surely help you with your question.