The 17 Best Engine Code Reader of December 2023

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.

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.

Accurate Fast and 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.

OBDII Protocols and Car Compatibility: Many cheap scan tools 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.

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.

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.

LCD Display - Designed with a clear display LCD screen (128 x 64 pixels) - 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.

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.

【Vehicle CEL Doctor】The NT301 obd2 scanner enables you to read DTCs, access to emissions readiness status, turn off CEL(check engine light) or MIL, reset monitor, read live data and retrieve VIN of your vehicle.

【Accuracy & Streams】Live data graphing and logging. Accurately read error codes for most Worldwide cars, SUVs, light trucks and 12V diesels equipped with Obd2. Graphing live vehicle sensors data allows you to focus on any suspicious data and trend.

【Worthy to Own】Recommended by Mechanic Scotty Kilmer on Youtube. Codes analysis and Printer compatible. Unique PATENTED design, 2.8" color screen, Free Lifetime Update and 1-year seller assurance with EXCLUSIVE tech and service team.

【Smog Check Helper】Read/Erase and I/M readiness hotkeys make it easy to use the car computer reader right out of the package. Red-Yellow-Green Leds and build-in speaker indicate the readiness status for confident e-missions test.

【Home Necessity】Open to global customers. No battery required, NT301 obd scanner is charged directly from the 16pin DLC in your vehicle. It is recommended as a necessity in your toolbox and one of the best gifts for Home and Autoshop Mechanics.

【Please Note】Dear customer, if you are not pleased with your NT301 and choose to return it, please kindly mark it unsellable to avoid an used one is resold again to other customers. Appreciate very much!

【Warm Tips】NT301 car scanner can be used directly with no need for registration or update, as it is already the latest version. Your Foxwell's screen is with a tightly-fitting screen protector. If any scratches are found, just tear off the screen protector from the upper left or upper right corner. :)

【2023 Upgraded Foxwell NT301 Obd2 Scanner, Latest Enhanced Vehicle Doctor】 As 2 IN 1 Battery Tester Car Code Scanner Reader with 12V battery testing, NT301 Plus Odb2 Scanner covers ALL Functions of NT301✅Full OBDII /EOBD troubleshooting✅One-click I/M Readiness - helps you pass s-m-o-g check✅Also adds 12V Battery Analyzer, Regular Flooded, AGM, and gel battery testing, tests starting(cranking) and charging system, which provides a easy and affordable solution for technicians and DIY users

🔥【Additional Functions - OBDII Scanner can Help you to Identify Failing Battery】1️⃣Battery Health Test to check the battery working condition to help you avoid battery damage from unnecessary recharges,2️⃣Charging System Test to check the working condition of generator/rectifier diode/charging current,3️⃣Read Battery Voltage to detect faults/bad cells to judge the batteries die or not,4️⃣ Starting(Cranking) System Test to check the working condition of starter motor

【One-Click I/M Readiness, A Must Tool for S-m-o-g Check】The Car Diagnostic Scanner features with one-click I/M key can get emission readiness status and trouble codes, to check if the pass vehicle s-m-o-g inspection. Features with colored LED lights and build-in beeper provide both visual and audible reminders for e-m-ission check and DTCs

【More Accurate Foxwell Automotive Scanner Battery Tester】The Obd Reader Can check kind of battery conditions( such as volts, measured value, soc, soh and res) and multiple rating systems - CCA, CA, MCA, JIS, DIN, IEC, EN, SEA, including regular flooded, AGM flat plate, AGM spiral and GEL batteries. 🚩NOTE: this car scanner diagnostic for all cars don't support alternator load test

【Real-time Diagnostic Live Data Stream In Graphic】The Code Reader Car Diagnostic Tool shows live vehicle sensors data in text and graph formats and allows to focus on any suspicious or symptom-specific data parameters[ such as FUELSYS(fuel system status), ECT(Engine Coolant Temperature), EVAP_PCT(Commanded Evaporation Purge), etc.

【Wide Compatibility, Meet Your Needs】this Scan Tool for all Vehicles Compatible for Standard OBD2 vehicles with 12V batteries from 1996(in USA) to now, including compliant cars, light-duty trucks, 12V diesels, SUVs, minivans , hybrid, Golf Cart, Motorcycle, Mower and Pickup truck.🚩The compatibility may be various, if you cannot confirm it, pls contact us. Best gift idea for your boyfriends, husband and familiars who is vehicle enthusiasts and mechanics

【DTC Lookup to Help Repair】The built-in DTC library with 10W+ detailed definition helps you understand the specific engine faults. In addition, the obd scanner diagnostic tool not only support the definition and query of fault codes, also support the fault code maintenance help functions to provides some maintenance guidance for you

【Multilingual, Lifetime Free Update】Foxwell obd2 scanner provides multilingual for English, Spanish, German, French, Japaness and so on. Lifetime FREE upgrade via Windows 7/8/10 to keep you stay current with the latest development of diagnosis.

【Purchase Note】Dear Customer, if you reciew a wrong item and wrong product box or label, please kindly mark it unsellable(damaged) to avoid an wrong one is resold again to other customers. Appreciate very much!

CEL & ABS FIX FOR FAMILY---Compared to other complicated scanners on the market, Innova 6030P obd2 scanner is designed for all US family at an affordable price to assist with the most common automotive warning lights issues, namely check engine light(CEL) and ABS(brake) light faults.

GET RID OF ANNOYANCE---During this difficult time, it can be annoyed when you found the warning lights on. With Code Severity Levels function of 6030P ABS scanner, you can quickly identify if your vehicle needs an immediate fix or if it can wait until you get home to fix it yourself.

DO IT YOURSELF---Not only can you read codes to diagnose your car problem directly, you can also see key information about your vehicle in real time (RPM, Oil Temp, etc.) to aid in diagnosis. And we are glad to tell that Innova 6030P has been selected to "Amazon Editorial Recommendations" as "Best OBDII Scanners" and "Amazon's Choice Code Reader". :)

BATTERY TEST TO SAVE TIME---Innova 6030P enhanced scan tool provides battery & alternator tests to check the performance of a vehicle's charging system. It does so by checking if the batteries and alternators are in line with voltage specs recommended for the vehicle. When troubleshooting a no start/hard start condition, carrying out this test really helps in knowing where to look, hence saving time.

DEVELOPED IN USA---Buy with Confidence. Innova 6030P car scanner empowers the home mechanics with its professional-level functionality but entry-level difficulty, for it is designed and developed in the US and supported by unmatched technical assistance from a staff of all ASE certified technicians. At the same time, it is also the perfect gift for your family and friends. ;)

WARM TIPS---Dear customer, your Innova's screen is with a tightly-fitting screen protector. If any scratches are found, just tear off the screen protector from the upper left or upper right corner. :) If you are not pleased with your innova 6030P code scanner and choose to return it, please kindly mark it unsellable to avoid an used one is resold again to other customers. Appreciate very much! For any issues, contact us directly for a fast reply and solution by clicking "Romondes" the seller. :)

👍【✅2023 New Version ✅More Faster, More Smart ,Wider vehicle coverage,Update version of NT604 Elite/ VII+/FX2000】Launch CRP123X obd2 scanner add more functions➤Add new 3 reset functions (SAS Calibration/Throttle Reset/O i l Reset),SAVE AT LEAST $2000 PER YEAR.➤ 4 system diagnoses (ABS/SRS/E NGINE/A T) ➤LIFE-TIME FREE WIFI UPDATE➤a larger 5” touchable HD 720P Screen➤Android 7.0,16G memory, 6100mAh rechargeable battery➤AutoVIN ➤Print diagnostic report via Email➤Google Search DTC online.

👍【NEWLY ADDED 3 Lifetime Free Reset Functions + 4 in 1 Live Data +AUTOVIN + One to one Technical feedback and Support】CRP123X Elite ADDS NEW SPECIAL FUNCTIONS--Throttle Adaptation,Oil Reset, SAS Reset. Live data in graphing, record the live data stream for up to 4, simultaneous, PID's. A uto record diagnostic data, recorded data can be played back in text format and graph format.“feedback function”can get the professional guidance of Launch Engineer.An excellent choice for family car owners

👍【Lifetime Free 4 Systems Diagnostic + Battery Voltage Test + Full OBD2 Functions + Health Report Print】Launch CRP123X car scanner diagnostic for all cars read and reset E ngine,Transmission, ABS and SRS systems, turn off the warning light related.performs real-time battery monitoring/graphing. Reset DTC, I/M Readiness Status,O2 Sensor Test, EVAP Test etc. ALL diagnostic data can be record and generate to diagnostic report which can be shared to email then print on computer.

👍【OVER 100000+ VEHICLE MODELS COVERAGE+ 10 LANGUAGE FREE TO USE】Launch crp123x code reader extensive vehicle coverage Includes 57+ vehicle brands, works on most vehicles after 1996 and up to 2023, It supports D iesel (12v only), 12V passenger car, p ickup, and light-duty tr uck, SUV, g asoline, Minivans, compatible with OBD2/ OBD1/ EOBD/ JOBD&CAN protocols.10 languages support (English, French, Spanish, German, Korean, Japanese, Portuguese, Italian, Traditional Chinese, Russian）

👍【NICE GIFT DESIGN + 5 YEARS WARRANTY + LIFETIME FREE UPDATE】Best useful gift idea for your grandfather, father, husband, brother or boyfriend. LAUNCH CRP123X obd2 scanner diagnostic tool provides life-time 100% worry-free after-sale service with professional supporter 24H/7D online.90-days-money-back if product has any problem.🚩Conact seller to get Free Gift 🚩Send VIN number to 🚘 [email protected] 🚘 to check compatibility before purchase!🚩

🎁【Free TPMS Activation Tool】Just click "Extra Savings" under price and add both to your cart to get a FREE TPMS Activation Tool which works for GM cars.👍We are proud to tell that LAUNCH CRP123X code readers & scan tools has been recommended as the "Best Overall OBD2 scanner" by Amazon editors, and also highly recommended by YouTube machinists. Lifetime Free WiFi Upgrade. 5 Years Warranty. Any problem, please reach us via 📩[email protected]

🚗【Wider Vehicle Coverage】 LAUNCH CRP123X car scanner support 57 vehicle makers of the BMW, VW, Jeep, Ford, Volvo, Dodge, Skoda,Mazda, Nissan, Porsche, Subaru, Lexus, Toyota, Ben,Abarth,Acura,Alfa Romeo,BMW-Brilliance, Bugatti, Buick, Cadillac, Chevrolet, Chrysler, Citroen, Dacia, Daewoo, Fiat, General Motors (GM), Honda, Hyundai, Infiniti, Isuzu, SUZUKI, Jaguar,KIA, Lancia,Land Rover ect.

🚘➤【POWERFUL FEATURES】Built-in 14 special functions in 1 car reader, read and erase stored e-mission related codes, pending codes, and show code definitions, data steam, freeze frame, on-board monitoring, and show the vehicle information, I/M reading, review the recorded DTC, review & print report. Support EVAP system test, let you initiate a leak test for the vehicle's EVAP system, identify troubleshooting related to fuel efficiency and vehicle e-missions.

🚖➤【PROFESSIONAL CHECKING CAR ENGINE TOOL】The OM126P Enhanced OBDII scanner can read and erase the trouble codes that can cause e-mission problems in your vehicle in seconds, determine check engine light the MIL (check your car engine) and reset the monitor, build a DTC lookup library you can find the related code definitions to help you determine if your car needs repair, to save you time and money, and dramatically improve your car lifespan/performance.

🚔➤【PROVIDE COMPREHENSIVE DATA FOR YOU】The OM126P can comprehensively diagnose data from your car, displaying graphical data streams: calculated load values, engine coolant temperature, intake manifold absolute pressure, vehicle speed, intake air temperature, air flow sensor, engine sp,eed etc, OM126P also supports data comparison, allowing you to easily diagnose vehicle conditions and know every parameter of the freeze frame: DTCFRZF, FUELSYSA, ETC, SHRTFT1, LONGFT1, MAP, RPM, VSS, IAT....etc

🚙➤【HD COLOR SCREEN AND EFFICIENT HOT-KEYS】The OM126P car diagnostic tool is equipped with 2.4" TFT 262K true color LCD display screen to indicate the test results, with the silicone keypad you can easy to access each menu option, the I/M Readiness hotkey can check the state e-missions readiness and drive cycle verification, Also, a wealth of car information is retrieved to find out all about your car without hassle for recording, car tracking, buying matched parts, etc.

🚕➤【STRONG COMPATIBILITY AND MULTIPLE LANGUAGES】 Work on all after 1996 and newer vehicle models in the USA(OBD II&CAN) or other imported vehicles. Quickly read and erase the DTC on all OBD II protocols vehicles: CAN, J1850 PWM, J1850 VPW, ISO9141 and KWP2000 and support for 10 languages: English, French, Spanish, German, Russian, Italian, Finnish, Portuguese, Polish, Dutch, which make it easy to use for people from different countries.

🚗➤【COMFORT ERGONOMIC DESIGN】Unique black shell grip gives a firm and secure user experience. The compact appearance design makes it easy to keep in your rig or in a toolbox drawer. Hard rubberized feel skin lets this scanning tool more textured. All these features have AUTOPHIX OM126P stand out among other obd car code readers.

🚍➤【5 YEARS WARRANTY】 This diagnostic scan tool provides 5 years warranty and 60-DAY FREE returns for refund or replacement. Pl-ug & Play, no battery or charger required. OM126P OBDII diagnostic scan tool supports a lifetime free software updating and Review & Print diagnostic reports from the Auto fix, via connection to a computer via USB (for Windows 7/8/10 ONLY), if you cannot confirm its compatibility, please feel free to consult us.

🔔【Easy to Use--Work out of box】+【FOXWELL 2023 New Version】 FOXWELL NT604 Elite scan tool is the 2023 new version from FOXWELL, which is designed for those car owners who want to figure out the cause issue before fixing the car problem via scanning the most common systems like abs srs engine and transmission.The NT604 Elite diagnostic tool comes with latest software, which can be used out of box. No need to waste time to download the software first.

🍎【Affordable】+【Reliable Car Health Monitor】 Will you be confused what happen 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 lovely cars and pinpoint the problem for you, which saves time and money for you. It will t-urn off the warning light for you after you fix the problem, making you to know more about your cars and do your own repair.

🥑【2 in 1 Diagnostic Scanner】Compared with those auto scanners (50-100 USD), NT604 Elite code scanner not only includes their OBDII diagnosis but also it can be an 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.

🍓【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 makes from worldwide (America/Asia/Europe). You don’t need to pay extra software fee.

🥝【Solid protective case KO plastic carrying bag】+ 【Lifetime update】Almost all same price-level obd scanner diagnostic tool only offers plastic bag to hold on 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.

👍【Great Gift Idea】: Top present choice for your father, husband, brother or boyfriend.EVERY CAR OWNER WILL NEED IT! It comes with protective case with rugged and handy design.Get NT604 Elite car code reader and give your lover a surprise! 🚩Kindly note that this foxwell nt604 elite car scanner CAN NOT support maintenance reset function.

🚩2023 New Elite Version🚩Same Function As LAUNCH CRP123E 🚩Lifetime Free Update🚩5 YEARs Warranty 🚩Conact seller to get Free Gift 🚩Fast delivery by Amazon

🎁【Great Gift Idea For Every Car Owner】: Prefect choice for your father, husband, brother or boyfriend. EVERY CAR OWNER WILL NEED IT! It comes with high-quality host with a strong box. Get LAUNCH CRP123 Elite car diagnostic scanner and give your lover a surprise!

🚗【 Read & Clear/Reset Engine/ABS/SRS/Transmission Diagnostic Scan Tool 】LAUNCH CRP123 OBD2 Scanner can test Engine, Transmission, ABS and Airbag four systems, also reads and resets code, displays data stream graphic, stores and playbacks dynamic data stream,helps to quick analysis and diagnosis.

🚗【 Error Fault Code Reader 】Except the full 10 modes OBD2 diagnostic functions like, retrieving I/M readiness, Freeze Frame Data, Read Dynamic Data stream and Vehicle Information, O2 Sensor Test, EVAP Test of Fuel Tank System (Mode 8) and Advanced On-board Monitoring (Mode 6), launch crp123 obd2 scanner can not only reveal what error codes your car is producing, but also erase your vehicle’s check engine light after problem fixed, the DTC help and explanation also tell you the exact problem.

🚗【 Live Data Graphing + Read/Record/Playback Data stream + Print diagnostic data 】※Live Data Graphing ,more intuitive to know your vehicle’s problem . ※ Large size Color Screen ;※ Print Function:Print the diagnose result easily; ※ with user manual and register & update tutorial video uploaded in the link by us, you can Look up it anytime by ONE-CLICK.

🔧【PLUG AND PLAY - EASY TO USE】 : It only takes 3 steps to connect to the car for diagnosis without cumbersome operations. The latest FX2000 is equipped with a one-key diagnosis function, which can automatically identify the model and year of your car, and automatically diagnose the car. Even beginners can use it to read the data to find out what the fault codes mean, how serious the fault is and what options there are to fix it before you go to the repair shop.

🚗【FULL OBD-LEVEL DIAGNOSTICS】: Quickly determines the cause of engine system faults, reads current, permanent and pending codes. After the repair, clears the codes and turns off the warning light. In addition, the FX2000 also displays important OBD II advanced data such as fuel, live data and other manufacturer-specific parameters in real time to ensure that the engine ECU is operating correctly and safely, saving vehicle owners a lot of time and money in maintenance.

🚙【TRANSMISSION FAULT DIAGNOSTIC】: When noises start to come from the transmission, your car might have transmission problems. This transmission scanner will read fault codes, display live transmission system data (fluid temperature, fluid pump, clutch actuation, pressure, etc.), and ensures transmission performance is optimal for vehicle speed and load. It provides detailed TCM data of the vehicle, so you can quickly and accurately find existing or potential problems.

🚐【FIND OUT SRS WRONG】: It is able to read and clear fault codes in the SRS (airbag) and turn off the warning light to make sure the system is working correctly and safely. This diagnostic tool also displays a live graphical data stream of the supplemental restraint system (air bag), which allows you to analyze and verify that the air bag system is working properly.

🚌【ABS OBD2 SCANNER】:The FX2000 can read and clear the Diagnostic Trouble Codes (DTC) data stream transmitted from the ABS. It can verify the operating conditions of the ABS through a series of bi-directional tests and turn off the warning light. By retrieving the ABS code data, it can check the various brake components and accurately diagnose problems.

📈【VIEW LIVE CAR DATA】: FX2000 Can quickly display data from a live view of vehicle sensors in test and graph formats. This includes ECU reports and automatic readout of VIN as well as data streams for engine, transmission, ABS, SRS(airbag) and generating a variety of diagnostic reports for the vehicle. With the help of the graphical display, data logging, and DTC tips and repeats, users can determine the cause of a variety of trouble codes much faster.

🚕【FX2000 WORKS WITH YOUR CAR】: The FX2000 is capable of accurately monitoring and diagnosing problems on over 60 different makes of cars and more than 10,000 different types of vehicles. This includes most US vehicles from 1996 onwards, EU vehicles from 2002 onwards, Asian vehicles from 2005 onwards or newer OBDII and CAN vehicles both domestic and foreign. The compatibility will vary from different year and model. To confirm it, you can ask Q&A if needed.

🚎【EXCELLENT EXPERIENCE】: With a user-friendly UI, compact design, and an affordable price, the FX2000 is an ideal tool for both DIYers and mechanics. The ANCEL scanner is suitable for both beginners and professionals as it displays the test results on the 3.5" TFT 262K true color display LCD and the data is very easy to understand. No car knowledge required. With FX2000, you can clearly read and understand the information that the device displays.

🚚【LIFE-TIME FREE UPDATE & 5 YEARS WARRANTY】: The FX2000 supports lifetime free software upgrades, new parameters, functions and the latest vehicle data are constantly updated via the USB2 port over the Internet. We provides 5 Years warranty, 60 Days No-Reason-asked Return for refund. And there is a 7/24 technical support.