The Best Car Tester of 2022 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best Car Tester of 2022. Check our ranking below.

2,062 (random num) Reviews Scanned

Rank No. #1

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD2 Protocol Vehicle (Black)

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 mechanic tool 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.

SaleRank No. #2

UMEIJA OBD2 Scanner with Upgrade Battery Tester - Diagnostic Tool for Cars That Check Engine Light & Emissions Readiness Read and Clears Vehicle Error Codes for All OBD II Protocol Vehicles Since 1996

Multi-Function: This code reader for cars and trucks is like a micro mechanic, which can quickly read and clear engine error codes, live data stream (with graphic display), view freeze frame, check MIL readiness status, read I/M monitoring readiness status and collect vehicle information, display vehicle indicators in detail. You can use it to check fault codes by yourself and display code definitions, understand the health of the vehicle, be fully prepared for going to the auto repair shop for car maintenance.Note: It cannot detect battery life, gearbox faults, output current test, can only detect battery voltage, and can clear fault codes of repaired vehicles.ABS code is not supported.
Wide Vehicle Compatibility: Multiple Uses - The OBD2 professional automatic scanner supports all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN.Works with most 1996 and newer US cars, 2000 EU and Asian cars, light trucks, SUVs, and newer OBD2 and CAN vehicles both at home and abroad. Please check compatibility with your model before purchasing. This car code reader supports multiple languages such as English, German, French, Spanish, Finnish, Dutch, Russian and Portuguese, making it an ideal choice for international users, deeply loved and highly recommended by customers worldwide.
Rugged and Compact Design: The OBD2 scanner is a compact and well-designed car parts. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. It comes with a 2.5-foot heavy-duty cable with a standard 16-pin OBD connector. The cable is made of a very thick flexible insulation layer and is sturdy and durable. Since OBD2 scanners can easily fall to the ground while working in the car, the structural design of the scanner is very demanding, and this OBD2 scanner can well meet the customer's needs for sturdiness and compactness.
Accurate, Fast and Worth Having: The OBD2 code reader adopts an upgraded microprocessor, its powerful performance provides fast and accurate results and displays them on the screen, draws and records real-time vehicle sensor data, helps you understand the condition of the car, quickly diagnose and repair common car problems. 6 buttons for quick operation, plug-and-play design makes it easy to use, you can easily operate it without reading the manual. The OBD2 scanner is not only designed to be lightweight and portable, but also simple, accurate and fast to operate, affordable and more cost-effective, it is a must-have tool for home DIY diagnosis or mechanics to use in auto repair.
Battery Tester and Advanced OBDII System Diagnostics: This advanced code reader with battery has a built-in easy-to-use battery tester for monitoring battery life and voltage, helping you quickly assess the battery health of your vehicle, prevent unexpected failures and ensure reliable car performance. At the same time, this engine fault code reader provides advanced diagnostic functions, including testing the O2 sensor and EVAP system to measure oxygen concentration, control the amount of fuel injection, reduce fuel consumption, maintain optimal combustion conditions, improve engine efficiency; reduce exhaust emissions, and better protect the environment.

SaleRank No. #3

MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow

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.
2.8" LCD Display - Designed with a clear display 2.8" Large LCD screen - 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.

Rank No. #4

WINAMOO Automotive Test Light with 3-48V LED Digital Voltage Display, Auto Circuit Tester with Voltmeter & Dual Color Polarity Indicate, Electric Test Pen w/Stainless Probe for Car/Truck/SUV Checker

【PRECISE READOUTS & CLEAR DIGITAL DISPLAY】Bright LED display shows highly clear readings in any lighting condition, 0.1V resolution gives you reliable indication and shows you the voltage number easily & quickly. Bidirectional light emitting diode on the circuit board for easy battery load testing, red light indicates positive polarity, green light indicates negative polarity.
【QUICK DETECTION & EXTENSIVE USE】WINAMOO auto circuit tester helps you to quickly test car battery voltage and diagnoses issues in 3V-48V systems, including alternator tester functionality of car/truck/SUV/boat charging systems. Also to inspect circuit tester integrity of headlights, taillights, turn signal circuits, faulty sockets, fuse connections and more.
【SHARP PROBE & ANTI-LOST PROTECTIVE SLEEVE】Sharp stainless steel probe for piercing insulation with ease, also for hard to reach tight areas. Integrated anti-lost protective sleeve to secure the probe during storage and safeguarding against damage, making sure no stab and wound and won't be lost wherever you go.
【EXTENDED SPRING WIRE & LARGE ALLIGATOR CLIP】High quality 96 inch long enough spring wire increases flexibility to access across broad areas when testing. Attaching with large crocodile clip for easy single-handed operation, which is boosting the efficiency for car battery capacity checks and beyond.
【ULTRA-DURABLE & SAFE CONSTRUCTION】This voltage tester pen adopts ergonomic handle for comfort and safe grip. Constructed with premium ABS body with higher transparency, shatter-proof and durable. Ensuring reliable battery meter and circuit analysis for safe operation, making them an essential tool in electrical troubleshooting.

Rank No. #5

ANCEL AD410 Enhanced OBD2 Scanner, Vehicle Code Reader for Check Engine Light, Automotive OBD II Scanner Fault Diagnosis, OBDII Scan Tool for All OBDII Cars 1996+, Black/Yellow

WIDE COMPATIBILITY – Trusted by YouTube Star Scotty Kilmer. The AD410 OBD2 Scanner supports all 16PIN vehicles that comply with the OBDII protocol, including KWP2000, ISO9141, J1850 VPW, J1850 PWM, and CAN. This OBD2 code scanner compatible with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles. Multilingual support (English, German, French, Spanish, etc.), this car code reader is ideal for international users. Check compatibility with your vehicle model before purchasing. !!! Powered directly from your vehicle's OBDII connector, this diagnostic tool doesn' t need a battery or charger.
CRITICAL FUNCTIONALITY – Quickly Read & Clear Fault Codes. The AD410 obd2 scanner diagnostic tool quickly reads and clears stored emissions-related codes, pending codes, and provides code definitions. With over 42,000 built-in DTC lookups, you can easily identify faults without the need for Google searches. Reset the MIL, check monitor readiness before smog tests, and understand your vehicle's health before costly repairs. !!! Note: Fault codes can be cleared after resolving the underlying issue, the code reader itself does not have a reset function.
ENHANCED OBDII DIAGNOSTICS – Comprehensive System Testing. This engine obd2 scanner diagnostic tool offers advanced diagnostics, including testing of O2 sensors and EVAP systems. Perform a leak test on your vehicle's EVAP system and monitor the fuel tank's integrity. The O2 sensor test helps fine-tune the air/fuel mixture, improving fuel efficiency and reducing emissions—saving you money at the pump and reducing your car's environmental impact. !!! Note: The AD410 is only an engine code reader, it DOESN'T support other systems such as ABS, SRS, Transmission and others.
QVGA DISPLAY & NEW UI – Easy-to-Use, User-Friendly Interface. The AD410 scanner for car boasts a 2.4 TFT true-color LCD display (262K) for clear, easy-to-read results. With an intuitive UI design, you can quickly access OBDII diagnostics, I/M readiness checks, DTC search, and setup options. No need to read a manual—this user-friendly auto diagnostic code scanner is perfect for beginners, mechanic and seasoned users alike.
DIAGNOSTIC REPORTS & FREE LIFETIME UPDATES. The AD410 car scanner reader allows you to review, save, or print detailed diagnostic trouble code reports. Plus, with lifetime free software updates, you’ll always have the latest features and bug fixes. Simply download the updates from the ANCEL website and follow the easy on-screen installation instructions. (Note: update is not necessary, the AD410 code reader can be directly inserted into the OBDII interface of the car to use, if it doesn't work, then consider updating the device.) The ANCEL website provides the latest product user manual, which can be downloaded and viewed at any time.

SaleRank No. #6

CMTOOL Power Circuit Probe Tester 6V-24V DC Test Light, Automotive Circuit Tester Car Short Finder, Component Activation, Polarity Identify, Overload Protection

【Wide Application & Overload Protection】The power circuit probe tester is made of ABS material, which is moisture-proof, high-temperature resistant and has a longer service life. It is suitable for diagnosis of all DC 6V to 24V automotive electrical systems and can work well on cars, trucks, boats, trailers, and motorcycles. The tester also has an overload protection device, When the current exceeds 7A, the circuit breaker inside the device will automatically trip and give out a buzzer prompt.
【Polarity Test & Continuity Test】The power circuit probe tester is made of insulating material and high-quality stainless steel tip, which can help you quickly identify the positive and negative polarity of the vehicle cable and plug. When the dc circuit tester touches the positive pole, the LED should be red; when it touches the negative pole, the LED should be GREEN. The power circuit probe tester is also used to check the continuity of switches, relays, diodes, fuses, and circuits.
【Component Activation and Testing】The automotive power circuit probe tester can activate components inside/outside the vehicle electrical system, perfect for professionals or car enthusiasts. The LED indicator light and buzzer prompt make it easy to test and check whether the component is defective or whether the rated current of the component is higher than the rated current of the car test light.
【Grounding Test & 4M Test Lead】The electric circuit tester has a ground prompt device, if the LED indicator turns green and the buzzer sounds, it means the ground is good. If not, the LED remains red and does not beep. The automotive circuit tester is equipped with a 4M extended detection line, covering the front to the rear of the vehicle, making it easy to test the entire vehicle circuit system.
【Tracking and Locating Short Circuit】The power circuit probe tester uses advanced high-sensitivity probes to provide you with fast and accurate detection. Using this automotive test light can save a lot of time to troubleshoot the car wiring circuit, to quickly and accurately find the faulty wire and its fault point.

SaleRank No. #7

BlueDriver Bluetooth Pro OBDII Scan Tool for iPhone & Android - No Subscription Fee - OBD2 Car Scanner and Code Reader - Diagnose Check Engine, ABS, SRS, Airbag & 7000+ Issues on Vehicles 1996+

[Pro OBD2 Scanner] - BlueDriver is the easiest way to scan and understand your vehicle like a professional mechanic. Read and clear your car’s trouble codes and check engine light.
[Read & Clear All The Codes] - BlueDriver's enhanced vehicle diagnostics gives you access to information normally available only to mechanics on their OBD2 scan tools. Now you can read and clear ABS, Airbag, SRS, TPMS codes, and many more.
[Get The Right Fix & View Live Data] - Much more than a car code reader, BlueDriver is a diagnostic tool. You’ll get unlimited repair reports with possible causes and fixes, plus real-time health monitoring while you drive with the live data feature.
[Wireless & Bluetooth Enabled] - Say goodbye to wires. BlueDriver connects with Bluetooth via your phone/tablet to a sensor that plugs into your car's OBDII port. Get all of the capabilities of an expensive code reader & scan tool without any annoying wires.
[User-Friendly App and Repair Videos] - BlueDriver gives you more ways to scan and fix your vehicle. Our iOS & Android app connects you to a large database of repair videos with step-by-step directions of repairs.

SaleRank No. #8

Test Light Automotive, Circuit Tester 6V-12V-24V Car Electrical Test Pen with Continuity Voltage Electrical Fuse Tester for Sedan, SUV, RV and Truck

Safety of use: This automotive test light ergonomic design handle for a safe grip and comfort. Made of high quality people friendly material, more transparent, shatterproof and sturdy, and can withstand long-term rough use. High quality wire offers more flexibility, lighter and more solid than normal cable wires, will definitely improve your working efficiency
Bidirectional Current Voltage Testing: You can utilize an electric tester pen. Connect the alligator clips of the pen to either the negative or positive terminal, and then use the probe to diagnose shorted or defective fuses on the other side
Exceptional Quality: The test light automotive features long, sharp stainless steel probes for easy wire piercing and access to tight spaces. Insulated rubber tips provide protection against electric shocks. Crafted from high-quality acetate, the body is shatterproof and more solid than competitors. The premium PU wire is heat and oil resistant, ensuring safe operation
Quality Bulb: This automotive circuit tester has a built-in quality light bulb that provides a bright and reliable light indication. High visibility bulb to indicate circuits’ signal, the brightness of the light will be different with the different measured voltages
Wide Application: Multi-purpose automotive circuit tester/circuit test light has a voltage testing range of 6-24V DC. It is ideal for checking electrical circuits in various vehicles, such as turn signal circuits, headlights, taillights, motors, fuse connections, and other 6-24V DC circuits

Rank No. #9

OBD2 Scanner Diagnostic Tool, Check Engine Code Reader OBD2 Scanner with Reset, Mode 6, Mode 8 & I/M Readiness, Auto Check Engine Light Car Diagnostic Scan Tool for All OBDII Car Since 1996

Professional OBD2 Scanner Diagnostic Tool with Powerful Functions:OBD2 scanner code reader feature built-in 35901 OBD2 DTCs lookup library, As professional car scanner, the obd2 scanner diagnostic tool will help you to determine the cause of the engine light,read I/M readiness, Read & clear codes, turn off engine light or MIL, view freeze frame, retrieve vehicle VIN, battery voltage test, live data stream, onboard monitoring mode, and perform component testing etc
OBD2 Scanner Built-in 35,901 DTC Lookup: The OBD2 scanner car code reader built-in 35,901 DTCs, the old model obd2 scanner diagnostic tool usually only have 3,000-10,000.the OBD2 Scanner of DTC library covers tens of thousands detailed fault code definitions that will quickly determine the fault cause and catch potential problems before they cost you a fortune. Besides, you don't need to google the meaning of each fault code.If you are looking to replace or upgrade an existing car code reader, this code reader is an excellent option.
OBD2 Diagnostic Scanner Tool Compatible with 98% Vehicles And Multiple Languages: The code reader OBD2 scanner for cars is designed to be compatible with most vehicles manufactured after 1996 US-Based, 2000 EU-Based and Asian cars. If your car has a 16-pin OBD2 port and was produced within the specified timeline, it should be compatible with the code reader and the obd2 scanner diagnostic tool support for 10 languages: English, French, Spanish, German, Chinese, Russian, Italian, Japanese, Portuguese, Dutch, which make it easy to use for people from different countries.
Car Scanner Diagnostic offers Convenient Data Printing：The code reader for car offers advanced features such as live data and DTC replay combined with printing function, Connect the OBD2 scanner to your computer to easily print fault data, empowering you to prevent random charges at car repair shops and save valuable time and money. Additionally, WEJOWE offer lifetime free upgrades for the device, ensuring you always have access to the latest features and improvements.
Super Compact & What You Will Get: The OBD2 scanner tool is easy to carrying and storage,With each package, you will receive a canvas storage bag for convenient storage and a Type-C cable to connect to your computer.And Car Scanner Diagnostic offers Convenient Data Printing：The code reader for car offers advanced features such as live data and DTC replay combined with printing function, Connect the OBD2 scanner to your computer to easily print fault data, empowering you to prevent random charges at car repair shops and save valuable time and money.

Rank No. #10

FOXWELL Car Scanner NT604 Elite OBD2 Scanner ABS SRS Transmission, Check Engine Code Reader for Cars and Trucks, Diagnostic Scan Tool with SRS Airbag, Automotive Diagnostic Tool with Live Data

[Easy to Use--Work out of the box] + [FOXWELL 2025 New Version] FOXWELL NT604 Elite scan tool is the 2025 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 obd2 scanner 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 happens 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 cars and pinpoint the root cause. It will t-urn off the car warning light after the problem is fixed.👉TIPS: Airbag crash/collision data can NOT be cleared even if you replace the new airbag.
[5 in 1 Car Diagnostic Scanner] Compared with obd scanners (50-100), NT604 Elite code scanner not only includes their OBDII diagnosis but also serves as 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. Note: doesn't support maintenance functions.
[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 car scanner diagnostic tool only offers plastic bag to hold 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.

Last update on 2025-05-26 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best Car Tester?

Do you get stressed out thinking about shopping for a great Car Tester? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Car Tester, which is why we have assembled a comprehensive list of the greatest Car Tester available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Car Tester that you consider buying. Your questions might include the following:

Is it worth buying an Car Tester?
What benefits are there with buying an Car Tester?
What factors deserve consideration when shopping for an effective Car Tester?
Why is it crucial to invest in any Car Tester, much less the best one?
Which Car Tester are good in the current market?
Where can you find information like this about Car Tester?

We’re convinced that you likely have far more questions than just these regarding Car Tester, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Car Tester, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Car Tester. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Car Tester 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 Car Tester currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Car Tester 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.
Features: What bells and whistles matter for an Car Tester?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Car Tester.
Customer Ratings: Number ratings grade Car Tester objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Car Tester.
Product Quality: You don’t always get what you pay for with an Car Tester, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Car Tester is should be an indication of how long it will work out for you.

We always remember that maintaining Car Tester information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Car Tester is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

The Best Car Tester of 2022 – Reviews & Buying Guide

How Do You Buy The Best Car Tester?

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