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Autel OBD2 Scanner 2023 Newest MS309 Automotive Check Engine Code Reader, Check Emission Monitor Status, CAN Diagnostic Scan Tool for All OBDII Protocol Vehicles After 1996

4.5 4.5 out of 5 stars 3,487 ratings

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Purchase options and add-ons

Brand Autel
Display resolution 128x64
Power Source
powered by car obd2 socket
Screen Size
1 Inches

About this item

  • 👍[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🚘.
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Autel OBD2 Scanner 2023 Newest MS309 Automotive Check Engine Code Reader, Check Emission Monitor Status, CAN Diagnostic Scan Tool for All OBDII Protocol Vehicles After 1996
Autel OBD2 Scanner 2023 Newest MS309 Automotive Check Engine Code Reader, Check Emission Monitor Status, CAN Diagnostic Scan Tool for All OBDII Protocol Vehicles After 1996
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Price$22.99$22.99-9% $20.99
Typical:$23.09
$29.99-17% $37.99
Typical:$45.99
$21.99
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Easy to use
4.6
4.2
3.7
5.0
Sold By
Autel Direct
BELOMI
AUCELI Auto
BYJZ
BESULEN
BYJZ
power source
powered by car obd2 socket
Battery Powered
Battery Powered
Battery Powered
Corded Electric
display size
1 inches
2.4 inches
1.8 inches
2.8 inches
2.8 inches

From the brand


Product Description

Autel MaxiScan MS309 OBD2 Scanner Check Engine Light Code Reader
Turn off check engine light OBDII Scanner Code Reader

Turn off check engine light

Autel MS309 obd2 engine analyzer read engine related fault codes stored(hard codes) and pending codes (intermittent codes) in the ECU and display DTCs(diagnostic trouble codes) definitions on the TFT color display. It retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes. The MS309 car engine code reader helps you figure out why the check engine light is on, fix the problem and clear the codes, turn off MIL(Malfunction Indicator Light) light and reset monitors.

View Freeze Frame Data

View Freeze Frame Data

The Autel MS309 auto code reader is most useful while diagnosing continuous monitor faults like engine misfire and fuel control concerns.

When an emissions related fault occurs, the OBD II system not only sets a code but also records a snapshot of the vehicle operating parameters to help in identifying the problem. This set of values is referred to as Freeze Frame Data and may include important engine parameters such as engine RPM, vehicle speed, mass airflow, engine load, fuel pressure, fuel trim value, engine coolant temperature and etc.

Smog Check View I/M Readiness Status

Smog Check

MS309 engine scanner code reader comes with readiness status check function that shows whether all the emission related systems and components are operating within allowable limits to help pass the annual Smog Check.

Unmatched Vehicle Coverage

Powerful Compatibility

Autel MS309 car OBD2 scanner is Compatible with domestic, Asian and European vehicles, 1996 and newer. And the auto scanner supports all 5 OBDII protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN.

retrieve vehicle information

Retrieve Vehicle Information

MS309 automotive scanner retrieves the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is especially useful when you buy a used car and use this little pocket code reader to check whether the VIN matches and make sure the ECU has not been replaced by a garbage car.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here [PDF ]

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Autel OBD2 Scanner 2023 Newest MS309 Automotive Check Engine Code Reader, Check Emission Monitor Status, CAN Diagnostic Scan Tool for All OBDII Protocol Vehicles After 1996


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What's in the box

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    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    3,487 global ratings

    Customers say

    Customers like the scanner's quality, saying it's an excellent little tool that does the job well. They also appreciate the clear codes and explanations. Customers are happy with the scanner, saying that it can clear the check engine light. However, some customers have reported issues with connectivity, saying the scanner didn't connect properly.

    AI-generated from the text of customer reviews

    983 customers mention808 positive175 negative

    Customers like the quality of the auto accessory. They say it's easy to use, simple, and does the job well. Some say it suits their purposes just fine, and is an excellent little tool. They also say it solves problems and is a great help in diagnosing the issue.

    "...It is back-lit and the back light works well. It is built very well and should give YEARS of trouble free service is not overly abused...." Read more

    "...Works great! Great price." Read more

    "It is easy to use. SimpleAnd does the job well. Can’t work on some vehicles but it does the job for the Toyota well." Read more

    "I used the code reader to clear my CEL and it worked perfectly." Read more

    477 customers mention447 positive30 negative

    Customers find the value of the auto accessory to be very good for the money. They say it's a great investment, a simple, easy-to-use, low-cost code-reader that's worth its weight in gold.

    "...Works great! Great price." Read more

    "...It is a great investment." Read more

    "It’s very good for the money that I pay for it and use the job done. I highly recommend this." Read more

    "...husband is a mechanic and appreciated having it at home for such a great price compared to auto parts store plus was shipped and delivered in 2 1/2..." Read more

    415 customers mention393 positive22 negative

    Customers find the auto accessory super easy to use, simple, and straightforward. They say the scanner is easy to open, hook up, and operate, and the instructions are easy to read. Customers also say the device comes with an easy-to-use user's guide that's fully read in five minutes. They mention that the display screen is clear.

    "...It is very easy to use and to navigate the menus...." Read more

    "It is easy to use. SimpleAnd does the job well. Can’t work on some vehicles but it does the job for the Toyota well." Read more

    "...The protector can be removed and now the display screen is very clear on mine...." Read more

    "Easy to use and easy to carry" Read more

    194 customers mention153 positive41 negative

    Customers like the codes that the auto accessory reads. They say the codes are very clear, provide explanations, and are easy to find online. Some mention that the device is simple to use and provides the details of the code. Overall, most are satisfied with the codes provided by the device.

    "...It WILL reset the codes, INCLUDING the monitor codes, however, you can't make the car pass inspection by just resetting the codes...." Read more

    "...It will give you lots of codes but unless you have a shop manual can't really cross the code over to an actual failing component...." Read more

    "...This does the basics, reads codes and then lets you clear them. Works as expected, but the cable is somewhat short...." Read more

    "...It is very easy to use. Provides key information if you have a check engine light on. Also allows you to clear the check engine light...." Read more

    66 customers mention52 positive14 negative

    Customers like the light. They say it has accurate readings, and enables them to clear the check engine light. Customers also say it is simple to use and takes the engine light right off.

    "...It is back-lit and the back light works well. It is built very well and should give YEARS of trouble free service is not overly abused...." Read more

    "...I was really able to delete a code and to check on others. This was super simple." Read more

    "...A handy item to keep around. Once you read the code it's simple to erase." Read more

    "I had intermittent lights on my dashboard. I went to a mechanic who said I would need electrical work on the car...." Read more

    60 customers mention60 positive0 negative

    Customers are satisfied with the speed of the auto accessory. For example, they mention it's very quick and easy to use, and it never misses a beat for fast jobs. The results are also fast and complete, making it a time saver. It has a fast boot-up and reads codes in about 3 seconds. Customers also appreciate the almost no load time and the fact that it produces a result in a second.

    "...It is built very well and should give YEARS of trouble free service is not overly abused...." Read more

    "...Sable results were very fast and complete. Expedition results were slower and not as complete, but very useful none the less...." Read more

    "...the big autel hand held computer I own 4 this little gem never misses a beat for fast jobs I generally grab this guy rather than grabbing the larger..." Read more

    "...Very quick and easy to use tool." Read more

    58 customers mention55 positive3 negative

    Customers like the scanner. They say it's a great simple scanner, a good basic/entry-level scanner, and an excellent scan tool. Customers also mention that it'll get codes and their descriptions out of vehicles. They appreciate the big, bright screen that's easy to read.

    "Easy to use and easy to carry" Read more

    "The best scanner for everything that your car needs. Its super compact and extremely user friendly. A++++" Read more

    "...This is a very basic scanner and suits my purposes just fine, but advanced folk with more technical needs might want to consider one of Autel's more..." Read more

    "...The scanner itself has a nice, big, bright screen that is easy to read. There are 2 buttons: an ENTER/EXIT and a SCROLL button...." Read more

    50 customers mention10 positive40 negative

    Customers are dissatisfied with the connectivity of the auto accessory. They mention that it didn't link with their computer properly, and the gas gauge went to zero. They also say that it failed to connect properly on all cars.

    "...On one car, the unit said it couldn't connect properly when I turned the ignition on then waited for something to happen...." Read more

    "...Unfortunately this unit won't link to my BMW. It did great with a 2005 Volvo XC90 and Infiniti QX56...." Read more

    "...reviews, there is no enclosed CD of trouble codes and no means of connecting to your computer for updates...." Read more

    "...Autel MaxiScan MS309 CAN OBD-II Diagnostic Code Scanner connects to my car with no problems...." Read more

    The Autel MaxiScan MS309 Code Reader is a MUST HAVE TOOL!
    5 Stars
    The Autel MaxiScan MS309 Code Reader is a MUST HAVE TOOL!
    Review - A web publisher who advertised for Hondru Ford and who was a good friend with Benjamin Stidd bought a 2011 BMW 328I Xdrive in April of 2018.The BMW was owned by an ignorant fat Irish woman who knew absolutely nothing about car maintenance nor cared about the safety of the buyer.The new owner bought the car without noticing that the clever Irish woman has swapped all her new tires that passed the state inspection and has put used ones hoping that the buyer would not notice the difference.Since the Bmw is a european brand, the car required a special code reader.In February of 2019, The new owner of the BMW had a blown tire right on I81N mile marker 316, Winchester, VA. When the car was towed back to the Pet Boys auto shop, the mechanic has noticed an engine light was on and four worn tires indicating that a friend mechanic working at Faulkner BMW put the sticker on so the car can pass the inspection to save the first owner some money on tires expenses and two engine lights.A year has passed and it was time for a sticker inspection. The second owner took the car back at Hondru Ford to be inspected and it turned out that the shop's computer system could not read the BMW's codes. What a lie! The web publisher bought a Maxiscan obdII/oeod reader that only costed him $25 on Amazon so why can Hondru Ford afford to buy one? If Hondru Ford does not specialize in European cars, they should not sell any in the first place because the safety of the next buyer could be put at risk if the car was not diagnosed properly.Our investigation led us to believe that the First BMW owner fooled the BMW dealership by deleting the codes so his car could pass the inspection because his comprehensive coverage ran out and he did not have any more money to purchase new tires or to care for the code 7eb and 7ec. 7eb means that the Catalyst System efficiency below threshold. An oxygen sensor readings is unstable. It maybe leaking fuel from theinjector or has a high fuel pressure in the cylinder that misfire an oil contamination.The catalytic converter would need to be replaced and the the oxygen sensor (HO2S).If an Asian web publish knows this much than how come Hondru Ford Technician were not able to figure out the codes?
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