We’ve spent hundreds of hours researching and comparing Car Diagnostic Computer of all specifications to find the best one for any need (or budget). Here are the results.

The Best Car Diagnostic Computer of 2020 – Top Rated & Reviewed

2,345 Reviews Scanned

Rank No. #1
Autel AutoLink AL519 OBD2 Scanner Enhanced Mode 6 Car Diagnostic Tool Check Engine Code Reader CAN Scan Tool, Advanced Ver. of AL319
  • 👍【TURN OFF CHECK ENGINE LIGHT】: Autel AL519 is an enhanced OBDII scanner that allows you to check all engine related fault codes, figure out check engine light alerts and perform proper repair with the definitions and tips displayed for DTCs and turn off the Malfunction Indicator Light(MIL). The auto diagnostic scanner can locate bad O2 sensors, perform EVAP tests(Mode 8), On-Board Monitor Tests(Mode 6) and component tests, check misfire and fuel system and retrieve vehicle information and etc.
  • 👍【THE MOST COMPLETE OBD2 SCANNER】: AL519 obd2 scanner can perform all 10 modes of obd2 tests like read, clear diagnostic fault codes(DTCs), retrieve readiness status to pass smog check, freeze frame data and live data of multiple sensors in graph to figure out fault causes, check fuel efficiency and emission conditions via O2 Sensor and EVAP Test (Mode 8), On-Board Monitor Test (Mode 6), retrieve Vehicle Info, show definitions of DTCs and tips for repair with DTC lookup and unique Code Breaker.
  • 👍【UNMATCHED OBDII VEHICLE COVERAGE】: Autel AL519 car diagnostic scanner supports all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN. AL519 car diagnostic tool is compatible with all obdii-compliant vehicles: sedans, SUVs and light trucks post 1996 in US, post 2000 for EU-based and Asian cars. This plug-and-play engine diagnostic code reader retrieves all kinds of codes(generic, manufacturer specific and pending codes). No batteries or apps needed for super ease of use!
  • 👍【PATENTED ONE-CLICK SMOG CHECK】: Autel AL519 obd2 diagnostic scanner comes with patented One-Click I/M Readiness Check to check the conditions of the Emission System which includes continuously tested monitors like misfire monitor, fuel system monitor, comprehensive components monitor and non-continuous monitors like O2 sensors, EVAP system, EGR system and etc, making this enhanced obd2 scanner an excellent engine scanner to help your vehicle pass the annual smog check.
  • 👍【LIFETIME FREE UPDATES & 0% RISK PURCHASE】: Autel AutoLink AL519 OBD2 scanner engine analyzer comes with lifetime free software updates and is backed by 30 Days REPLACEMENT or FULL REFUND, 12 Months free from defects after-sales services. Should there be any questions or issues, please feel free to contact our 24/7 customer service team via 🚘auteldirect@ outlook.com🚘.
Rank No. #2
OBD2 Scanner Code-Reader-Reset Tool MS309 - No Computer or Phone Needed Diagnostic for Cars 1996 and Up - 3000+ Codes - Diagnose Check Engine Light Errors
  • FEATURES: Read or clear generic and manufacturer error codes, retrieve VIN (vehicle identification numbers) on 2002 or newer vehicles supporting mode 9, and reset the airbag light
  • INCREDIBLY SIMPLE: Plug it into the 16-pin connector underneath the steering wheel, turn the ignition, and you're ready to go using only 2 simple buttons
  • COMPATIBILITY: Works with most US vehicles 1996 and newer that are OBDII and CAN compliant and supports all OBDII protocols as these are required in all US vehicles after this date
  • LCD SCREEN: Displays the meaning of over 3000 generic error code definitions in the database, it also clears trouble codes (DTC’s) and turns off the check engine light (MIL)
  • HANDHELD: At 2.75" x 1" x 4.25" (26.25 inch cable) and only 8 ounces, it literally fits in the palm of your hand, plus it's powered by your vehicles, Data Link Connector so you don't even need batteries
SaleRank No. #3
FOXWELL NT201 OBD2 Scanner Check Engine Light Car Code Reader Emission Analyzer Car Diagnostic Scanner for All Cars
  • 🎄【Top OBD2 Scanner】 Recommended by Ezvid Wiki and Onsite Associates Program. Car care and repair can be expensive, especially if you don't know what the issue is.While you can take it to a mechanic who should have the right tool to diagnose the problem, having OBD2 scanner like FOXWELL NT201 can save you money and time by locating the issue yourself.
  • 🎄【One-Click Smog Check】This car scanner with One-Click I/M Readiness key for quick state emissions readiness check and drive cycle verification,test results of your vehicle health status clearly and vividly in graphical way you’ll see if the car is ready to pass the emission test, without the hassle of driving around endlessly, or continuously coming back to the repair shop for retest.
  • 🎄【Car Health Doctor】 The OBD reader contains all 10 modes of obd2 tests, quickly read and erase code,On-board monitor test (Mode 6), EVAP system,test,O2 sensor, turn off CEL(check engine light), reset monitor, retrieve VIN of your vehicle,live data in both graph and text forms, freeze frame data,built-in DTC look up library can be automatically displayed after reading.
  • 🎄【Wide Coverage & Multiple Language】NT201 vehicle check engine code reader works on most gasoline domestic and import vehicle 1996 US-Based, 2000 EU-Based and Asian cars,included light-duty trucks (12v only), SUVs and mini-vans with standard OBDII/EOBD/JOBD&CAN protocol. Supports all OBDII protocols: KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN. 5 kinds of language avaliable :English, German, French, Spanish, Italian.
  • 🎄【A Necessity in Your Vehicle Toolbox】Designed with 2.4' TFT colorful LCD display screen, No battery required, the scan tool is charged directly from the OBDII interface in your vehicle (please turn your vehicle ignition on), making it convenient for Home and Autoshop Mechanics.Lifetime free update via a computer(Windows 7/8/10 ONLY).No need to read the manual to know what to do, even for a beginner.
Rank No. #4
How To Use Automotive Diagnostic Scanners (Motorbooks Workshop)
  • Amazon Kindle Edition
  • Martin, Tracy (Author)
  • English (Publication Language)
  • 203 Pages - 08/01/2015 (Publication Date) - Motorbooks (Publisher)
SaleRank No. #5
Manfiter OBD2 Scanner OBD2 Reader Turn Off Check Engine Light View Freeze Frame Data I/M Readiness Smog Check CAN OBD II Diagnostic Tool Fault Code Reader OBD 2 Scan Tool for Car Automobile Vehicle
  • 🚕 Exact & Quick: OBD2 reader with UPGRADED CHIP to read, diagnose and clears DTC, universal DTCs (Diagnostic Trouble Codes) meanings basing on built-in database(more than 3000 codes), determines the malfunction indicator lamp (MIL) status, turn off check engine light, shows engine parameters, scan I/M readiness / monitor status (UPDATED FUNCTION), views freeze frame data(retrieve data record)(UPDATED FUNCTION)
  • 🚕 Retrieve Vehicle Info: OBD2 code reader enables retrieval of the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). VERY USEFUL to check whether the ECU matches your car when you are buying a used car. The OBD2 Code scanner retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes, and pending codes.
  • 🚕 Wide Car Compatibility: OBD2 scan tool is UNIVERSAL to fit all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN (Controller Area Network). Compatible with US vehicles since 1996 & European and Asian autos since 2000, OBDII vehicles, passenger cars, light trucks, suv. Great for gasoline cars but NOT suitable for DIESEL vehicles.
  • 🚕 Easy to Use: Use OBDII reader to read codes easily by just plugging in and pressing scroll and enter button. Don’t need annoying Bluetooth, app and computer. Don’t need battery. Wider LCD screen with white backlight shows. Support language: French German Dutch Spanish English. 28.8in / 73cm 16 pin obd2 cable allows you to sit comfortably for car diagnostic testing.
  • 🚕 Save Maintenance Cost and Time: tackle every automotive problem that might arise with this OBD2 diagnostic tool instantly. A compact, handy scan tool with manual in details as driver’s necessary backup. Start quick check of the car system and fix it. Risk-Free Customer Service, 1-year replacement in case any quality problem of the car OBD2 scanner. Just feel free to send us email for any problem.
Rank No. #6
ANCEL FX2000 Vehicle OBD2 Scanner Automotive Car Code Reader Check Engine ABS SRS Transmission Diagnostic Scan Tool
  • [ENHANCED 4 SYSTEMS DIAGNOSIS] - Not only diagnose the engine system but also performs full detection on vehicle's other 3 main ECU systems (Transmission, ABS, Airbag(SRS)). Reads & erases fault codes, turns off warning lights, and reads live PCM datastream on these 4 systems.
  • [FULL OBDII DIAGNOSIS] - Read/clear error codes, DTC look-up, do smog tests including I/M readiness, O2 sensor test, etc. will keep your mind from worrying about whether the data about emission exceeds the standard values. It also reads freeze frame data, does EVAP system test, retrieves vehicle info, and more.
  • [ADVANCED DATASTREAM GRAPH] - Reads and displays live data stream in one graph for the 4 systems (Engine, AT, ABS, SRS), allows you to add 4 parameters in the meantime to show the live data, which is intended to help you quickly find potential problems of the vehicle.
  • [WIDE VEHICLE COVERAGE] - Compatible with over 46 vehicle makers for a complete car diagnosis. Works on most from 1996 US-based, 2002 EU-based, 2005 Asian-based or newer OBD II & CAN domestic or import vehicles. Supports English, French, Spanish, German, Russian, Italian, Polish, and Portuguese.
  • [USER-FRIENDLY DESIGN] - Equipped with an intuitive interface, 4-inch TFT color backlit large screen, 2 cutouts in the back for holding easily, strong rugged anti-slip rubber housing. Supports lifetime free update and print online via an update software tool downloaded from ANCEL website.
SaleRank No. #7
FOXWELL NT301 OBD2 Scanner Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light
  • 【Vehicle CEL Doctor】The obd2 scanner can quickly help you read DTCs (engine fault codes), locate bad O2 sensor, access to emissions readiness status, turn off check engine light(CEL) or MIL(Malfunction Indicator Lamp) , reset monitor, read enhanced data and retrieve VIN of your vehicle.
  • 【Accuracy & Streams】Live data in both graph and text forms. Accurately read vehicle error codes for most Worldwide cars, SUVs, light truck and 12V diesels equipped with Obd2. Besides, the car scanner also shows live vehicle sensors data in text and graph format and allows you to focus on any suspicious or symptom-specific data parameters.
  • 【Worthy to Own】Recommended by Mechanic Scotty Kilmer on Youtube. Supports data logging and Printer compatible. Unique PATENTED design, clearly arranged keypad, 2.8" wide color screen with Life-Time Free software update and 1 year quality assurance, it deserves to own. Supported by EXCLUSIVE engineer and service team for product and service quality. (Please note currently the package does not include a CD. )
  • 【Smog Check Helper】Read/Erase and I/M readiness hot keys make it easy to use this car computer reader right out of the package. Red-Yellow-Green Leds and build-in speaker indicate the readiness status for smog test. The obdii scan tool also help catch intermittent problems and confirm repairs during a drive cycle, so that help you quickly determine the health of the car.
  • 【Home Necessity】NT301 car scanner is open to global customers. No battery required, it is charged directly from the OBDII interface in your vehicle (please turn your vehicle ignition on), making it convenient for Home and Autoshop Mechanics. It is recommended as a necessity in your toolbox and one of the best gifts for father. (Quick Start Guide is included in the package.)
Rank No. #8
OBD Fusion (Car Diagnostics)
  • Clear your check engine light (MIL/CEL)
  • Read diagnostic trouble codes (DTCs)
  • Estimate fuel economy and usage
  • Create customizable dashboards
  • Graph vehicle sensors in real-time
Rank No. #9
Kobra Newest Version OBD2 Scanner Car Code Reader - Universal Auto OBD Car Diagnostic Tools for All Cars, Automotive Check Engine Readers with Reset (Red and Black)
  • ✔ 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! Reach out for any issues!
Rank No. #10
How to Diagnose and Fix Everything Electronic, Second Edition
  • Amazon Kindle Edition
  • Geier, Michael Jay (Author)
  • English (Publication Language)
  • 417 Pages - 10/31/2015 (Publication Date) - McGraw-Hill Education TAB (Publisher)

Last update on 2021-04-19 / Affiliate links / Product Titles, Images and Descriptions from Amazon Product Advertising API

Top Rated Car Diagnostic Computer to Buy Now

 

Why You Should Buy Best Car Diagnostic Computer from Amazon

Amazon is not the only store that sell Car Diagnostic Computer. However, there are several compelling reasons why you should buy Car Diagnostic Computer from them, with the suitable Price and Reviews. Here are five:

(1) Amazon Makes Shopping Car Diagnostic Computer Personal

Amazon is very good at making recommendations of Car Diagnostic Computer based on your search history. From time to time, they will even show you discounted prices on Car Diagnostic Computer that you previously expressed an interest in. They also make your shopping experience a little easier by showing you items that you recently viewed.

(2) Amazon Checkout is Easy

Amazon checkout is easy, especially if you already have an account. You can add Car Diagnostic Computer to your cart and go through a multi-step checkout process, or you can buy Car Diagnostic Computer with only one click by using your stored credit card information.

(3) Amazon Has Lots of Social Proof

Before you make a purchase for Car Diagnostic Computer, you want to know that the company you are dealing with is legitimate and that others trust the company enough to make a purchase. You may also like to read what others are saying about the product in the review section. Amazon does all of this quite well.

(4) Amazon Has Great Car Diagnostic Computer Images and Descriptions

In addition to still images, many of Amazon’s Car Diagnostic Computer have videos. This makes it easier for you to see exactly what you are purchasing. Amazon’s Car Diagnostic Computer descriptions are also quite good. In many cases, Amazon repeats the descriptions furnished by the manufacturer. In other cases, they write their own.

(5) The Amazon Site is Easy to Navigate

Navigating the Amazon site is easy. Even though the site is huge, you will not feel overwhelmed when searching for Car Diagnostic Computer. This is partly due to Amazon’s filtering process. You can search for items by brand, price or user rating. You can also search for specific features.

How to Choose the Best Car Diagnostic Computer (with Price and Reviews)

Although most Car Diagnostic Computer are similar, there are several differences worth noting. Here are nine criteria to consider when choosing an Car Diagnostic Computer:

(1) Car Diagnostic Computer Price and Reviews

Although price is not the only factor to consider, it is nevertheless extremely important. The price of an Car Diagnostic Computer should be in line with its value. You can compare Car Diagnostic Computer reviews to make sure you are getting a fair price. This is easy to do on Amazon.

(2) Demand

The demand for a particular Car Diagnostic Computer is a good indication of its ability to perform the functions for which it was designed. If a product has been around for a while and still has a high demand, it is likely a good product.

(3) Material

Car Diagnostic Computer materials differ from manufacturer to manufacturer. Consider where and how you will be using your Car Diagnostic Computer to determine if one material would be better than another.

(4) Size

Like most products, Car Diagnostic Computers come in various sizes. Do you need a large Car Diagnostic Computeror a small one? Think about where you will use your Car Diagnostic Computer in order to determine the best size. You can also read the customer reviews on Amazon to see what others are saying about the size of the unit they purchased.

(5) Color

Car Diagnostic Computers also come in a variety of colors. Do you need a particular color? You should also consider whether the color of your Car Diagnostic Computer would have any effect on the efficiency of its operation.

(6) Durability

The durability of an Car Diagnostic Computer will be contingent on the materials used as well as the quality of the manufacturing process. Additionally, the type of Car Diagnostic Computer you purchase may affect its durability.

(7) Storage

Will you need to store your Car Diagnostic Computer? If so, you should consider the size and weight of the Car Diagnostic Computerto make sure that it can be stored properly. Also, give some consideration to the type of climate in which your Car Diagnostic Computer will be stored.

(8) Customer Ratings

Customer rating is one of the best criteria for choosing an Car Diagnostic Computer. It is hard to know exactly how an Car Diagnostic Computer will perform until you get it home and try it out.

(9) Warranty

Make sure the Car Diagnostic Computer you are considering is backed by a good manufacturer’s warranty. If it isn’t, you might be better off with another ones.