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

  • Based on 16,895 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Mar 31
Order within 4 hours and 24 minutes
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Features

  • Important Tips Before Purchcase1. Compatible with standard OBD II vehicles from 1996 onward in the US market. 2. Due to the Safe Gateway (SGW) / FCA AutoAuth security system, this tool cannot access OBDII modules to clear codes for FCA vehicles (including Chrysler, Dodge, Jeep, etc.) manufactured after 2017. And vehicle brands equipped with a SGW are not supported either. 3. Not support TPMS or other service functions. Only the basic OBDII code reader. Functions not universal, please s-end mes-sage via Ama-zon or autelofficial @ outlook . com to check before order.
  • How to get a PDF User Manual ?a) Download directly via Am-azon page from Product guides and documents section. b) Mes-sage us directly via Am-azon or autelofficial @ outlook . com, we will send you the PDF version within 0-24 hours. Warm Tips: 1. It does not support the full engine system, or more advanced prameter display, if need, please consider autel MD906 PRO/ MK808BT PRO etc. 2. Autel MS309 does not listed in Autel US distributor's w-eb. It is only listed in Autel HQ w-eb. If need, please con-tact us to get w-eb.
  • How to Use The Tool?The MS309 is a plug-and-play tool; it does not require registration. Step 1: With the k~ in the ON position, the engine off. 2. Connect the MS309 OBDII cable to the vehicle's OBDII port. 3. Then, select the on-screen menu to perform the function. Note: Autel MS309 comes with standard OBD II plug, please ensure your vehicle's port is a stardard OBDII (16 Pin) and not loose.
  • On-Screen DTC Definition, Save Time & Easy To UseAutel MS309 OBD2 code reader retrives and clears 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(1000+ 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 DIY car owner.
  • Retrieve Freeze Frame Data & Vehicle infoThe OBD2 scanner MS309 can retrieve freeze frame data, 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.
  • Turn Off Check Engine LightWhen your car detects an emission related problem, Check Engine Light will be turned on. Do you want to spend hundred 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 CheckIf 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.
  • Worry-Free PurchaseThe Automotive OBDII Scan Tool MS309 comes with a 12-month war-ranty and lifetime fr-ee technical support. Should you require any assistance, feel fr-ee to cont-act us at autelofficial @ outlook . com. Our team is available 24/7 throughout the year, and we strive to respond to all inquiries within 24 hours at the latest. (If the OBD2 code reader is not compatible with your vehicle or does not meet your expectations, please con-tact us at the em-ail addr-ess above. We will provide a full ref-und no return required.)

Brand: Autel


Power Source: by OBD2 cable connect to car


Product Dimensions: 2.74"L x 0.8"W x 4.34"H


Screen Size: 1 Inches


Automotive Fit Type: Vehicle Specific Fit


Brand: ‎Autel


Product Dimensions: ‎2.74"L x 0.8"W x 4.34"H


Automotive Fit Type: ‎Vehicle Specific Fit


UPC: ‎508825559005 891638744721 713524943653 755263547778 608225589081 193195983767 634425760166 193195983507 675234379934 702565320417 669954576292 647904097028 712407252318 707273312143


Global Trade Identification Number: ‎07, 05, 81, 66, 28, 92, 17, 43, 18, 53, 78, 21, 69, 31, 68, 62, 32, 76, 17, 88, 11, 30, 73, 80, 42, 24, 98, 23, 35


Manufacturer: ‎Autel


Model: ‎Autel MaxiScan


Item Weight: ‎6.3 ounces


Item model number: ‎00063-25


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Brushed


Manufacturer Part Number: ‎00063-25


OEM Part Number: ‎Supports CAN (Controller Area Network) and all other current OBD II protocols


ABPA Partslink Number: ‎MS1234567


Bulb Type: ‎LED


Special Features: ‎Displays DTC definitions on screen, Displays monitor and I/M readiness status (emissions), Erases Codes and turns off Check Engine Lights, Turns off Check Engine Light, clears codes and resets monitors, Views freeze frame data


Lift Type: ‎manual


Voltage: ‎12 Volts


Date First Available: March 29, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Mar 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good scanner
Good quality scanner. Simplistic and does the job.
Reviewed in the United States on March 7, 2026 by Chris Lauckner

  • Must Buy/Have Item for Everyone Who Owns a Vehicle(s)
This device is a must have! Self sufficiency is power. I have an exotic foreign vehicle and the OBD2 scanner works perfectly. I don’t have time to go to the dealer or wait on anyone. I detected the issue, cleared the check engine light - since I know it’s safe to drive temporarily until I get to the dealership. This tool is great for everyone - especially women and first time car owners. It will save you money and time because you know exactly what the issue is that needs repairing. No one will be able to pull wool over your eyes again. Durable and easy to connect. Great purchase! ... show more
Reviewed in the United States on November 3, 2025 by Kahlia Meeks Kahlia Meeks

  • Does what it says
It scans codes and can clear codes. Works on foreign cars. Not difficult to use. Not much else to say.
Reviewed in the United States on March 2, 2026 by Eli H.

  • Would be 5 stars if instructions were available.
For the price, this is a great scanner. I have a 2005 Jeep Cherokee that has a lot of quirks. I love not having a car payment, so I am hoping to keep driving this vehicle for as long as possible. Recently, my husband’s vehicle needed a jump, so we used the Jeep (which has a new battery), and immediately I got a check engine light. The Jeep had just been at the shop, so I assumed the jump had triggered an electrical code. I had a different brand code reader that I had purchased a few years back. That code reader showed two codes which were seemingly unrelated and hard to believe would occur simultaneously. That reader would not clear the codes, so after an internet search and seeing Autel highly recommended, I purchased this inexpensive unit. As a few other reviews mention, there is no instruction manual included. There is a QR code, but that only takes you to the Autel website, and lol, this product isn’t even on their website, so no manual or instructions. I did find a helpful YouTube video which walks through the process of using this and clearing codes. After watching that video, I was able to quickly find the code causing the check engine. Since the code shown related to a low voltage actually made sense based on using the vehicle to jump another car, I felt comfortable erasing the code to see if it comes back. This code reader did erase the code and in starting the vehicle, there is no longer a check engine light, woohoo. If there were instructions included or an actual website to reference, I would definitely give this 5 stars. ... show more
Reviewed in the United States on October 26, 2025 by Doggie Momma Doggie Momma

  • Well worth the money.
Easy to use. Worked great in my 2018 gmc. Picked up the issue even when the dealership missed it or maybe they just over looked it. Now I can tell them what to fix.
Reviewed in the United States on December 28, 2025 by Bill Gerhard

  • Very good
The Autel OBD2 Scanner MS309 is an excellent diagnostic tool for anyone who wants to keep track of their vehicle’s health. It is very easy to use—just plug it into the OBD2 port and it quickly reads engine fault codes and checks the Check Engine light status.
Reviewed in the United States on February 9, 2026 by Ismelys Gutierrez

  • Good price
Good quality
Reviewed in the United States on January 30, 2026 by JW

  • He said it's easy to read
My friend said it's just what he needed. He said it works great and is easy to read.
Reviewed in the United States on March 10, 2026 by diana

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