10 Best Engine Scan Tools

Product Features

• 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.

Product Features

• 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.

Product Features

• 🚙【On-Screen DTC Definition, Save Time & Easy To Use】Autel MS309 OBD2 code reader with UPGRADED CHIP to retrive and clear generic(P0, P2, P3 and U0), manufacturer-specific(P1, P3 and U1) and pending codes, and display DTCs(Diagnostic Trouble Codes) meanings under the codes based on the built-in database(more than 3000 codes). Don't need to spend much time to search meanings on the internet. This advanced plug-and-play MS309 scanner saves you time - a must-have obd2 scanner for each car owner.
• 🚙【Retrieve Freeze Frame Data &Vehicle info】The more specific the information available, the clearer the problem. The OBD2 scanner MS309 can retrieve freeze frame data, including important engine parameters like RPM, fuel pressure, fuel trim, engine coolant temperature, etc. Also it can retrieve Vehicle Information such as VIN number, Calibration ID(s), Calibration Verification Nos. (CVNs), etc, which is useful to check whether the ECU matches when you are buying a used car.
• 🚙【Read Codes & Clear Codes】Knowing the codes in advance will brace you for the repair cost estimate so that you won't be fooled and get overcharged by the repair shop.This Autel MaxiScan MS309 obd2 scanner scans OBD2-compliant vehicle Diagnostic Trouble Codes (DTCs) in seconds to pinpoint emission-related issues. The little guy can do many basic but necessary works: read/clear codes, view DTC definition, turn off check engine light, check I/M Readiness status, retrieve freeze frame data and vehicle info.
• 🚙【Turn Off Check Engine Light】When your car detects an emission related problem, Check Engine Light will be turned on. Do you want to spend hundreds of dollars to turn off this light every time, maybe it's just a gas cap that's not tightened or needs to change bad parts like spark plugs and ignition coils? With Autel MS309 scan tool, you can read code to quickly find out why the check engine light is on and reset it.
• 🚙【Ready For Annual Smog Check】If the OBD II Readiness Monitors on your car are not “Ready”, your car may fail the smog check. MS309 OBD2 scanner can retrieve I/M Readiness status to check the monitors like misfire monitor, fuel system monitor, comprehensive components monitor, catalyst monitor, O2 sensors, EVAP, etc, to help your car ready pass the annual smog check. That way you won't waste time and money on a failed smoke check.
• 🚙【Works on 99% Vehicles】Autel MaxiScan 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 99% OBDII-Compliant vehicles, passenger cars or light trucks. For OBD2 cars, usually, post 1996 for US market, post 2006 for EU market and post 2009 for Asian market.
• 🚙【No-Worry Purchase】Automotive OBDII scan tool MS309 comes with a 12-month warranty and free lifetime technical support. If you need any technical support, please feel free to contact us at 📞autelofficial @ outlook . com📞. NOTE: It does not support the full engine system, if need, pls consider ML629/ MK808BT, etc.

Product Features

• 🥇【2023 Newest 2-in-1 Car Diagnostic Scanner】The OM129 code reader has been upgraded in the actual fault detection of 200,000 cars. It can not only check the engine fault, display the fault cause, provide maintenance advice, but also check the health status of the car battery, so it is the first true 2-in-1 vehicle code reader in the market. In addition, this car computer code reader is equipped with the latest industrial chip, which makes the scanning speed 5X faster than other vehicle code readers.
• 🚙【Full OBD2 Functions] Compared to other simple scanners, OM129 check engine code reader support full OBD2 functions: Read and Clear Codes, Freeze Frame, Data Stream, DTC LOOKUP, O-2 S-ensor Test, On-Board Monitor Test, EVAP System Test, Component Test, Data Record & Replay, Data Print and Vehicle Information. What's more, it can help you determine the cause of check engine light on and reset monitors after fixing the problem, 100% meet your basic maintainance needs for beloved car.
• 🔋【Professional Battery Test Function】The obd2 scanner can collect the real-time battery voltage, then refer to the voltage parameters in the system to compare. Finally display the test result in the form of text & graphic. Via the prompt of the interface and the changes in real-time voltage graphics, you can better know the battery health status or expected remaining life. Most Surprisingly, it's deeply convenient that you don't need to open the hood to check the voltage in the cold winter.
• 💡【Exclusive Designed Shortcut Keys】The auto code reader is designed with two hot keys "i" button and "I/M" button, so you can access to the two commonly used functions easily. The" i" button gives a detailed fault code definition and accurate repair advice directly instead of a bunch of technical terms you don't understand. I/M button helps you to quickly check the status of monitors misfire system and fuel system related to e-missions, and make sure the display is ready for s-mog test.
• 📈【Support Viewing All Engine Live Data】The code readers & scan tool can display all data streams, including Calculated Load Value, EC Temp, Engine RPM, Vehicle Speed, Air Flow Sensor, Intake Air Temp, Barometric Pressure, Control Module Voltage, Fuel Rail Pressure, etc. All parameters support text and graphics display, and one graphic can reflect the dynamic changes of multiple real-time data, so you can understand the engine operating status more intuitily.
• 🔧【Best Repair Assistant for You】Via reading fault codes, viewing freeze frame data, and checking all real-time data streams, this engine code reader can quickly locate the specific fault and provide the related maintenance solution. In addition, it supports data record & replay, so you can share a full diagnostic report with your friends or mechanics online to quickly solve your problem instead of spending hundreds of dollars and few days in a repair store just to find out what is happening.
• 💖【5 YEARS WARRANTY & Lifetime Free Update】 This diagnostic scan tool provides 5 years warranty, 60-DAY FREE return for refund or replacement and 24h after-sales service. The code reader car diagnostic tool with reset supports lifetime free software updating(Via connect to a computer via USB, for Windows 7/8/10 ONLY). If you cannot comfirm vechicle compatility, please feel free to consult us.

Product Features

Product Features

• WIDE COMPATIBILITY - Recommended by YouTube star Scotty Kilmer on his channel. Works on most vehicles sold in the U.S. with a model year of 1996 or newer; Supports all OBDII protocols: KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN (Controller Area Network); Displays in English, German, French, Spanish, Finnish, Dutch, Russian and Portuguese; Requires no battery or charger as the unit is powered directly from the OBDII Data Link Connector in the vehicle.
• CRITICAL FUNCTIONALITY - Quickly reads and clears stored emissions-related codes, pending codes, and displays code definitions. Turns off the MIL (check engine light), helps reset the monitor before you take the car to smog, and lets you know what's going on before you take the car in for repairs.
• ENHANCED OBDII DIAGNOSTICS - Supports O2 sensor and EVAP (evaporative control) system test. The AD410 code scanner can be used to initiate a leak test of a vehicle's EVAP system by monitoring the integrity of the fuel tank system. The O2 sensor test is used to monitor and adjust the air/fuel mixture, which can identify and correct problems related to fuel efficiency and vehicle emissions.
• QVGA DISPLAY & NEW UI - The AD410 code reader is a greatly improved upgrade from simpler diagnostic tools. It features a 2. 4" TFT true color display (262K) LCD for clear viewing of test results. With the clear design UI, users can easily access setup, OBDII diagnostics, I/M readiness and DTC search and check. No need to read the manual to know what to do, even for a beginner.
• DIAGNOSTIC REPORTS & UPDATE - The Review & Print option allows you to save or print diagnostic reports as needed. The ANCEL brand offers lifetime free software updates for this unit to fix the latest bugs or add new parameters. Simply download the software from the ANCEL website and then follow the on-screen instructions to install it.

Product Features

• 👍【Turn off Check Engine Light】+【Easy to Use-Plug & Play】The FOXWELL Obd2 scanner NT201 is capable of scanning trouble codes, which enables you to figure out what's wrong with your car to avoid an expensive trip to the mechanic. Then this automotive code reader will clear fault code and turn off the check engine light. Moreover, car code reader also read live data and retrieves the VIN of your vehicle. It's a good engine diagnostics code reader for your essential automotive diagnostic needs!
• ✅【One-Click I/M Readiness】+【A Must Have for Quick Smog Check】This FOXWELL scanner NT201 enables you to do a quick smog check to confirm if your car could pass the e-mission test. The Red-Yellow-Green LEDs and build-in speaker offers a visual and audible indication that your vehicle is ready for the smog test. FOXWELL NT201 code scanner---The better item to have before the annual inspection. 🎁Great idea for your friends, husband, and family.
• 👍【Professional 10 OBDII Diagnosis】Foxwell NT201 code reader is equipped with strong full 10 modes obdii diagnostic functions. It can read and erase fault codes, and stored codes. This vehicle error code reader shows I/M readiness, freeze frame data, displays live data in the text and graph format, retrieves auto VIN, reviews the recorded DTC, and EVAP Test (Mode 8), On-board Monitoring (Mode 6). All these powerful features are designed to protect your car.
• ✅【Live Data in Graph】+【On-board Monitor Test】This engine code reader would diagnose the misfire and live monitor it comes from which bank and cylinder. What's more, Foxwell NT201 obd2 scanner will graph all the real-time streaming data it reads, including but not limited to Engine Coolant Temperature, Short Term Fuel Trim, Long Term Fuel Trim, Engine RPM, etc.
• 👍【Wide Vehicle Coverage】 FOXWELL obd2 scanner NT201 will work on the USA and import vehicles, such as light-duty trucks (12v only), SUVs, and mini-vans with standard OBD2/ EOBD/ JOBD & CAN protocol. European vehicles from 2000, American ones from 1996, and Asian from 2008. Car compatibility may be various, if you cannot confirm it, we are free to provide any help via Amazon.
• 🚦【Reliable Use & Functions】 The NT201 Foxwell obd ii scanner can be used directly with no need for registration or update or battery, as it is already the latest version. Get power directly from the OBD2 interface in your vehicle. The multilingual menu supports English, Spanish, etc. Lifetime FREE upgrade via Windows 7/8/10 to keep you stay current with the latest development of diagnosis.

Product Features

• 【Auto OBDII Scanner Diagnostic Tool:】Easy-to-use plug-in-play car scanner that read and clear codes.Retrieves generic code and displays DTC definitions. It can check engine related fault codes,easily find out what caused.
• 【Wide Compatibility:】Code readers & scan tools are compatible with all OBD II and CAN Compliant vehicles,passenger cars or light trucks,post 1996 in US,post 2000 for EU-based and Asian cars.Not compatible with new energy and hybrid vehicles.
• 【Freeze Frame Date For Accurate Diagnosis:】Car 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 verification time.
• 【I/M Readiness Function:】 Car diagnostic scanner 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 component monitor, Oxygen sensor heater monitor,EVAP system and etc.It can help get your vehicle ready to pass the annual smog check.
• 【Retrieve Vehicle Infor:】 Vehicle code reader enables retrieval of Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is most useful to check whether the ECU matches your car.
• 【Keep Engine In Good Shape:】When MIL illuminates with a steady light,Just plug into your car"s 16pin OBD II port, press the button according to your need, and you will see the error code and its definition on the screen instantly.Erase engine fault code
• 【Product Warranty:】Professional auto scan tools has a 2 year warranty and life-time tech support,Please contact us for help first to solve it if you have any issues with using this product.

Product Features

• 【For Car DIYers And Beginners】This plug-and-play Autel scanner MS300 can pay for itself in the first use. It communicates with vehicles through standard 16-PIN OBD2 cable and it’s powered by vehicle directly (no battery needed). It capable of scanning vehicle Diagnostic Trouble Codes (DTCs) in seconds to pinpoint emission-related issues. The little guy should be a member of your toolbox, always in your car and ready to be taken out and used.
• 【Read Codes & Clear Codes In Seconds】Getting diagnostic codes(DTCs) should be the start of all repairs if you don't want to be ripped off. You can use MS300 to read the codes in seconds and look them up to quickly locate the problem areas, then determine if you can do the repair yourself or go to a mechanic, and clear the codes to get everything back to normal.
• 【Turn Off Check Engine Light】The check engine light is always annoying you, most of the time because of a little thing, isn't it? Maybe it's just a gas cap that's not tightened but you paid hundreds of dollars for it? With Autel MS300 scan tool, you can read code to quickly find out why the check engine light is on and reset it.
• 【Help You Pass Annual Smog Check】To pass annual smog check, you are better to make the OBD II Readiness Monitors on your car “Ready”. You don’t want to pay for a failed smoke check. MS300 OBD2 scanner can retrieve I/M Readiness status to check the monitors like misfire, fuel system, catalyst, O2 sensors, EVAP, etc, to help your car ready pass the annual smog check.
• 【Works On 99% Vehicles & No-Worry Purchase】Autel MaxiScan MS300 car code reader supports all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN. It is compatible with 99% OBDII-Compliant vehicles, passenger cars or light trucks. For OBD2 cars, usually, post 1996 for US market, post 2006 for EU market and post 2009 for Asian market. It comes with a 12-month warranty and free lifetime technical support. If you need any technical support, please feel free to contact us.

Product Features

• [ Read and Clear Codes ] : LAUNCH Creader 3001 obd2 scanner read and clear fault codes for engine system. In addition, Creader 3001 built in fault codes definition lookup library. LAUNCH Creader 3001 obd2 scanner works on most 1996 and newer US-based vehicles that are OBDII compliant (OBDII protocols: KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN). "PLUG AND PLAY" scan tool, equipped with a 2. 5 feet long cable and made of a very thick flexible insulator, very easy to use for beginners.
• [ I/M Readiness Status Test] : You can use this obd2 scanner to check the status of emission-related monitors misfire system and fuel system, make sure the monitor was set before taking it to smog, help you pass the Smog Check easily, save your money for paying fine tickets.
• [ Check Engine Light and Identify VIN information] : Turns off the MIL , if you finished repairing the faulty components, then clear the fault codes and turn on the vehicle ignition, it is surprise that you will find the check engine light is off. And more, LAUNCH Creader 3001 obd2 scanner can read the car's information such as VIN number.
• [ View Freeze Frame/Live Data Stream/ O2 Sensor/ Evap System test/ On-Board Monitor Test] : LAUNCH Creader 3001 is one useful and economic OBD2 FULL FUNCTION automotive diagnostic tool, support read live data for engine system, quick detecting vehicle failures, saving you the trips to your mechanic.
• [ 5 YEARS ]Recommended by Mechanic Scotty Kilmer on Youtube. 100% Money Back ; If you are not satisfied with our obd2 scanner for any reason, send it back for a 100% no questions asked refund. ! Providing you with high quality product and friendliest customer service are our forever goal !