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Returns
Eligible for Return, Refund or Replacement within 30 days of receipt
Eligible for Return, Refund or Replacement within 30 days of receipt
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Autel MaxiScan MS309 OBD2 Scanner Check Engine Fault Code Reader, Read/Clear Codes, View Freeze Frame Data, I/M Readiness Smog Check CAN Diagnostic Scan Tool

4.4 out of 5 stars 2,298 ratings
Prime Day Deal NO_OF_HOURS hours NO_OF_MINUTES minutes Prime Day Deal NO_OF_MINUTES minutes Prime Day Deal NO_OF_MINUTES minutes NO_OF_SECONDS seconds Prime Day Deal NO_OF_SECONDS seconds Prime Day Deal
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Brand Autel
Power source Corded Electric
Product Dimensions 7L x 2W x 11H Centimetres
Operating system Windows 7
Screen size 2.8 Inches
Display resolution 128x64
UPC 193195983644
Manufacturer Autel

About this item

  • 👍【TURN OFF CHECK ENGINE LIGHT】Autel MS309 OBD2 scanner is an easy-to-use plug-and-play check engine code reader that read and clear codes. This little code scanner retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes, and pending codes and displays DTC definitions on the TFT color screen. It can easily find out what caused the check engine light on, turn off MIL light.👉NOTE: It does not supports full engine system, if need, pls consider ML629/ MK808BT, etc.
  • 👍【FREEZE FRAME DATA FOR ACCURATE DIAGNOSIS】This MS309 check engine 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 cycle verification time. It includes important engine parameters such as RPM, vehicle speed, mass airflow, engine load, fuel pressure, short/long term fuel trim, engine coolant temperature and etc.
  • 👍【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. It includes vehicle-specific number of monitors like misfire monitor, fuel system monitor, comprehensive components monitor, O2 sensors, EVAP system and etc, making this OBD2 scan tool an excellent scan tool to help get your vehicle ready to pass the annual smog check.
  • 👍【UNMATCHED COMPATIBILITY】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 all OBDII-Compliant vehicles, passenger cars or light trucks. For OBD2 cars, usually, EU cars after 2006, Asian cars after 2009, US cars after 1996. 👉NOTE: It does NOT supports ABS, brake, SRS, full Engine systems, etc. If need pls consider ML629/ MK808BT or above.
  • 👍【RETRIEVE VEHICLE INFO】This portable OBD2 scanner enables retrieval of the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is most useful to check whether the ECU matches your car when you are buying a used car. It comes with 30 days 鶹 return policy, seller 1 year worry-free warranty. A very handy little tool to have with your bigger scanner. A must to keep in your car. Contact info: 🚘auteldirect@outlook.com🚘.
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Safety and product resources

Safety documents

Important information

Legal Disclaimer

★NOTE: MS300/MS309/AL519 is a very basic obd2 code reader, it can turn off check engine ligts. Mostly, if your car is with OBD2 socket, then it supports. BUT it does NOT support ABS, SRS, Engine and Transmission etc. systems. If any question, contact auteldirect@outlook.com to check.

From the brand

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  2. Autel is one of the world’s leading manufacturers of professional automotive diagnostic tools and accessories in the automotive aftermarket since 2004.

    Autel has been committed to creating maximum value to customer worldwide to satisfied various needs by providing quality-assured, user-friendly, and innovative products.

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  5. How we get our start?

    Started from MS300 MS309 coder reader, Autel founder Mr. Li realized more and more comprehensive automotive diagnostic tools are needed to solve various car repair issues.

    What makes our products unique?

    Owning a team of more than 1,000 engineers, and tens of both online and local authorized distributors across the world, Autel is dedicated to develop premium vehicle aftermarket products.

    Are our products high quality?

    Autel is continously creating leading automotive aftermarket products, such as diagnostic tools, TPMS, battery, e-car charging pile products & services.

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Product Description

Autel MaxiScan MS309 OBD2 Scanner Engine Fault Code Reader & Read Car VIN - Easy To Use (Definitions Under The Codes, NO Need To Check Online)

ms309

Autel MaxiScan MS309

Quickly scan and define vehicle Diagnostic Trouble Codes (DTCs) with this easy-to-use, compact code reader with the ability to view Freeze Frame Data, check I/M Readiness (Emissions) and monitor status. The MS309 is a go-to tool for quick vehicle health status.

Functions

Autel MS309

View Freeze Frame

Autel MaxiScan MS309 is an universal OBD2 code reader with View Freeze Frame function.

Autel MaxiScan MS309

I/M Readiness Status

MS309 displays monitor and I/M readiness status (emissions)

Autel MaxiScan MS309 OBD2 Scanner

DTC Definitions

Autel MS309 supprots DTC definitions. The definitons will be displayed bellow the codes. It provides you an easier way to read and a quick understanding of what's the meaning of the fault codes that was detected.No need to search online for what's the codes meaning.

Functions

Autel MaxiScan MS309 OBD2 Scanner Car Fault Code Reader, Turn Off Check Engine Light

Turns Off Check Engine Light

MS309 turns off Check Engine Light, clears codes and resets monitors

Autel MaxiScan MS309 OBD2 Scanner

Retriveing Codes

Autel MS309 scanner not only read and clear normal codes, but also retrieves generic (P0, P2, P3 and U0), manufacturer-specific (P1, P3 and U1), and pending codes

MS309 obd2 scanner

Vehicle Coverage:

Vehicle OBD support in various regions (for reference)

European Region: OBD is only supported after 2006;

Americas: OBD is only supported after 1996;

Asia: OBD is only supported after 2009.

Product information

Technical Details

Manufacturer ‎Autel
Place of Business ‎SALEM, OH 44460,US
Brand ‎Autel
Model ‎MaxiScan MS309
Product Dimensions ‎24.64 x 16.51 x 5.59 cm; 180 g
Manufacturer reference ‎MS309
Manufacturer part number ‎MS309
Item Weight ‎180 g

Additional Information

ASIN B07QTJCDVK
Customer Reviews
4.4 out of 5 stars 2,298 ratings

4.4 out of 5 stars
鶹 Rank
Date First Available April 18 2019

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Autel MaxiScan MS309 OBD2 Scanner Check Engine Fault Code Reader, Read/Clear Codes, View Freeze Frame Data, I/M Readiness Smog Check CAN Diagnostic Scan Tool

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Delivery—
Get it by Wednesday, Jul 16
Get it Jul 21 - 30
Get it by Tuesday, Jul 15
Get it by Thursday, Jul 17
Customer ratings
4.44.4 out of 5 stars2,298
4.54.5 out of 5 stars344
5.05.0 out of 5 stars3
4.64.6 out of 5 stars93
4.04.0 out of 5 stars55
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Customer reviews

4.4 out of 5 stars
2,298 global ratings

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Customers say

Customers like the functionality, ease of use, and quality of the vehicle scan tool. They mention it works great for a cheap scan tool, is easy to set up, and reads the codes. Customers also appreciate the compact size, engine warning light, and readability.

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FunctionalityEase of useQualityCode identificationBasicEngine warning lightCompact sizeReadability
216 customers mention "Functionality"191 positive25 negative

Customers like the functionality of the vehicle scan tool. They mention it works great, is easy to use, and works with almost all makes and models.

"Works great." Read more

"Works well, durable design" Read more

"Hopefully it works great going to test it tomorrow morning but exactly as pictured and for a great price!" Read more

"...it's very basic info and reset only works well, cheap plastic casing" Read more

200 customers mention "Ease of use"193 positive7 negative

Customers like the ease of use of the vehicle scan tool. They mention it's simple to set up, easy to read, and works as described. Some say it's a quick fix with their trucks using WD40 and a funnel.

"Works good for a cheap scan tool. Easy to use" Read more

"Very affordable and easy to use. Looked up on You Tube on where to plug into my BMW. Instruction on how to use code reader very clear...." Read more

"Very easy to use Cleared warning light with no problem " I LIKE IT "" Read more

"...So very easy to use. Plug it in, turn your vehicle to start and erase the code. Really straight forward. I highly recommend this scanner. A+++++" Read more

91 customers mention "Quality"83 positive8 negative

Customers are satisfied with the quality of the product. They mention it's easy to use, works as advertised, and is a good brand. Some say it's a neat little gadget.

"...Great product, I recommended it to friends who also purchased this device, and thanked me for recommending it." Read more

"Good product" Read more

"Very easy to use, good product...I give 5 stars for this ." Read more

"Good quality for an inexpensive tool. The connector feels heavy-duty...." Read more

67 customers mention "Code identification"57 positive10 negative

Customers like the code identification feature of the product. They mention it reads the codes, tells them the code, and gives brief explanations about the codes written and erasing options. Some say it shows no codes but the warning light remains.

"Showed no codes but the warning light remains" Read more

"...This handy device will allows you to find out what error codes are present in your car BEFORE you go to an actual mechanic...." Read more

"...with the onboard computer fairly quick. I was able to read the code, extracted the Freeze Frame data..." Read more

"...The machine read the code properly, so I followed the instructions in the manual to erase the code...." Read more

27 customers mention "Basic"25 positive2 negative

Customers like the basic scanner. They mention it's a great little code reader, easy to use, and reads the codes as well as other scanners of the same genre they've used. Some also say it's the right choice for clearing code.

"Great little scanner/reader. Easy to use and works perfectly!" Read more

"Good scanner..." Read more

"...Confirmed it worked from reviews and purchased a bottle. Cleared code with scanner as simply laid out on screen...." Read more

"...Used Scanner tool to clear code. Price was right, saved me from having to pay the price of having someone else do the diagnostics." Read more

21 customers mention "Engine warning light"18 positive3 negative

Customers like the product for its ability to turn off the annoying engine light. They mention it works great, is easy to erase codes, and disappears from the dashboard. Some say it's great for basic checking of check engine lights in obd2 vehicles.

"...Cleared code with scanner as simply laid out on screen. No more yellow light and no costly visit to BMW service...." Read more

"...Connected to my 2015 ford f150, gave me the right, check engine (diagnostic) code. Used Scanner tool to clear code...." Read more

"...The Check Engine light is now out, ready for the next triggering event!..." Read more

"...It gave me a code and it was also able to turn off the check engine light." Read more

20 customers mention "Compact size"16 positive4 negative

Customers like the compact size of the product. They mention it fits in the glove compartment and is easy to use. Some say it's a great small machine.

"Nice and compact. Good quality. Clear instructions and quick code display." Read more

"Easy to use . Tells you what's wrong with your car. Small unit fits in glove box ." Read more

"Scanner is small and simple to use." Read more

"...The only thing I would have liked was that the cable should have been a little longer...." Read more

13 customers mention "Readability"13 positive0 negative

Customers like the readability of the vehicle scan tool. They mention the codes can be read briefly without needing to search on the internet. Customers also appreciate the clear instructions and quick code display. They also mention the bright screen and detailed view are also available.

"Easy set-up and easy to read. I particularly like the probable cause and repair feature. It gives you a stating point to do your own trouble shooting." Read more

"Easy to use and read. Also works on some motorcycles if you have the adapter which is a huge bonus!" Read more

"Don't think this will solve your car troubles. It is handy to read what is going on under the hood and also have have a firm grip on what the..." Read more

"Nice and compact. Good quality. Clear instructions and quick code display." Read more

Simple and effective
5 out of 5 stars
Simple and effective
This device is very easy to use and worked on my C6 Corvette when the check engine light came on. It gave me a code and it was also able to turn off the check engine light.
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Top reviews from Canada

  • Rejean Dessureault
    5.0 out of 5 stars Simple d’utilisation
    Reviewed in Canada on July 6, 2025
    Verified Purchase
    Excellent, rien de négatif.
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  • catherine bond
    5.0 out of 5 stars super pratique
    Reviewed in Canada on July 1, 2025
    Verified Purchase
    super
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  • Kris
    4.0 out of 5 stars Hand held error code
    Reviewed in Canada on May 22, 2024
    Verified Purchase
    It works good for the money. I tried it and then used a 500.00 unit both have the same reading. Just can’t get details on the code
    Helpful
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  • Jeff S.
    5.0 out of 5 stars OBDII READER ( the right choice )
    Reviewed in Canada on April 13, 2025
    Verified Purchase
    This unit is definitely worth the money spent, which was a small amount. It works with almost all makes and models, just plug and play. The ease of use was a bit of a suprise as it looked way more detailed but this unit takes care of all that. Just scroll, select and then exit. It's that easy. Would recommend to anyone who is looking for one to have in their tool box or in need of one like Now! It arrived super quick and within 3 minutes from opening the pkg. I was done the task. Hope this helps someone the same way this unit helped me.
    Helpful
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  • a customer
    5.0 out of 5 stars Very useful
    Reviewed in Canada on June 7, 2025
    Verified Purchase
    Saved me a lot of headache, and money.
    Helpful
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  • Wilfred Leroux
    3.0 out of 5 stars Code reader
    Reviewed in Canada on August 21, 2024
    Verified Purchase
    Showed no codes but the warning light remains
    3 people found this helpful
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  • Todd
    5.0 out of 5 stars Works as advertised
    Reviewed in Canada on June 1, 2025
    Verified Purchase
    Happy so far.
    Helpful
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  • 鶹 Customer
    5.0 out of 5 stars Great value great product! Comprehensive codes!
    Reviewed in Canada on May 19, 2025
    Verified Purchase
    Works very well. Couldn't be easier to use. Didn't even have to use a manual!
    Helpful
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