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20 Best Autel Ms309 Universal Obd2 Scanner of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best Autel Ms309 Universal Obd2 Scanner of 2023. Check our ranking below.

2,566 Reviews Scanned

Rank No. #1

Autel OBD2 Scanner MS309 Universal Car Engine Fault Code Reader, Check Engine Light and Emission Monitor Status, OBDII CAN Diagnostic Scan Tool

🔥【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.

Rank No. #2

Autel OBD2 Scanner MS309 Automotive Check Engine Code Reader, Check Emission Monitor Status, CAN Diagnostic Scan Tool for All OBDII Protocol Vehicles After 1996

👍[FOR STARTERS & DIYERS] This error code reader is “plug and play” and comes with an easy interface. Even if you’re not familiar with vehicle repair, you can quickly take control of this code reader, and get the information you want. 👉It comes with English only, NO Spanish or other language.
👍[TURN OFF CHECK ENGINE LIGHT] This car diagnostic tool supports Reading DTCs, displaying DTC definition under the codes, Freeze Frame & I/M Readiness etc to figure out the root cause of the Check Engine Light (CEL) and turning it off, to help you detect any potential problems, and to avoid excessive costs for unnecessary repairs.
👍[UNIVERSAL OBD2 CODE READER] Autel MS309 is a very basic obd2 code reader, it can turn off check engine lights. Mostly, if your car is with OBD2 socket, then it supports. BUT it does NOT support ABS, SRS, Engine and Transmission etc. systems. PS: For OBD2 cars, usually, US cars after 1996, EU cars after 2006, Asian cars after 2009.
👍[USER-FRIENDLY DESIGN] This check engine code reader features two easy-to-use buttons, namely: "Enter/ Exit" and "Scrool" buttons, which are very easy to operate. It comes with backlit display, and the cable is long enough without being too long and getting in the way. No batteries are needed.
👍[HIGH-QUALITY SERVICES] 12 months warranty from the date of purchase and lifetime free tech supports are offered by this Automobile OBDII scan tool. If need any tech support, please feel free to contact us via 🚘auteldirect @ outlook . com🚘.

Rank No. #3

Autel Professional OBD2 Scanner AL319 Code Reader, Enhanced Check and Reset Engine Fault Code, Live Data, Freeze Frame, CAN Car Diagnostic Scan Tools for All OBDII Vehicles After 1996, 2025 Upgraded

【TURN OFF CEL】 This AL319 car diagnostic tool supports Reading DTCs, displaying Live Data, Freeze Frame & I/M Readiness etc to figure out the root cause of the Check Engine Light (CEL) and turning it off, to help you detect any potential problems, and to avoid excessive costs for unnecessary repairs.
【EXTENSIVE APPLICATION】 Autel AL319 Compatible with 7 languages (English, French, Spanish, etc.) and various post-1996 OBD II protocol vehicles (Toyota, Nissan, Honda, Ford, etc.), this OBD II scanner provides accurate and fast diagnosis for worldwide car owners.
【FOR END USER & DIYERS】 This error code reader AL319 is “plug and play” and comes with an easy interface. Even if you’re not familiar with vehicle repair, you can quickly take control of this obd2 scanner, and get the information you want.
【USER-FRIENDLY DESIGN】 This check engine code reader features a patented One-Click I/M Readiness, TFT color display, built-in speaker, LED Indicator etc. The cable is long enough without being too long and getting in the way. No batteries are needed.
【HIGH-QUALITY SERVICES】 12 months warranty from the date of purchase and lifetime free update are offered by this Automobile OBDII scan tool. Welcome to contact us via Q&A, email, or hotline, and our after-sale-service team for technical support.

Rank No. #4

Autel OBD2 Scanner MaxiScan MS309 Car Check Engine Code Reader, Check Emission Monitor Status, Newer CAN Diagnostic Scan Tool for All OBD II Protocol Vehicles After 1996

👏【Freeze Frame Data】OBD2 code reader with UPGRADED CHIP to read, diagnose and clear DTC, universal DTCs (Diagnostic Trouble Codes) meanings based on the 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) Don't worried outbreak outside.
👏【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 Vehicle 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.
👏【Displays DTC Definitions】 Use the OBDII reader to read codes easily by just plugging in and pressing the scroll and enter button. Don’t need annoying Bluetooth, app, and computers. Don't need a 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 detail 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 with the car OBD2 scanner. Just feel free to send us an email for any problem.

Rank No. #5

MS309 Universal OBD2 Scanner – Professional Car Engine Diagnostic Tool

The MS309 OBD2 Scanner is a true plug-and-play device with a user-friendly display interface. Even if you're not a car expert, you can quickly navigate this code reader and access the info you need. No more wasting time searching online for code meanings—this tool gives you clear results fast. A must-have scanner for every car owner!
The MS309 mini pocket OBD2 scanner supports all major OBD2 protocols, including KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM, and CAN. It works with 99% of OBD2-compliant vehicles—passenger cars and light trucks alike. If your vehicle has a standard 16-pin OBD2 port and was manufactured within typical compliance years, it’s likely supported. (Most U.S. vehicles after 1996, EU after 2002, and Asia after 2008). Note: Not compatible with electric vehicles (EVs), hybrid vehicles, or models that do not support OBD2 protocols.
Stay ahead of costly repairs with the MS309 OBD2 Scanner. It quickly scans diagnostic trouble codes (DTCs) on OBD2-compliant vehicles, helping you identify issues and estimate repair costs—so you don’t get overcharged at the shop. This compact tool does all the essential jobs: read and clear codes, view code definitions, turn off the check engine light, check I/M readiness, access freeze frame data, and retrieve vehicle information. Simple, fast, and reliable.

Last update on 2025-07-28 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: Is the Autel ms309 compact pocket code reader compatible?

A: 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.

Q: Can a Autel scanner read an OBD2 code?

A: I chose “Read code” from the dropdown menu and it reads as a slow emission leak. Went to a local store, bought a new gas tank, and so far, the light did not appear. Scanners can read Random Diagnostics II or OBD II. You can read more Autel scanner reviews.

Q: Is the maxiscan ms309 OBD2 code reader good?

A: Autel MaxiScan MS309 Scanner Reviews 2018. Autel MaxiScan MS309 code reader provides easy DIY users as well as quick access to diagnostic trouble codes and their definitions on all OBDII compliant vehicles sold worldwide from the 1996. Despite its small size it is powerful enough to derive information much like expensive scanners.

Q: Is the Autel ms309 ready to pass a smog check?

A: 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.

Autel Ms309 Universal Obd2 Scanner