Manufacturer | Autel |
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Brand | Autel |
Model | Autel |
Item Weight | 8.8 ounces |
Product Dimensions | 4.34 x 2.74 x 0.8 inches |
Item model number | MS309 |
Is Discontinued By Manufacturer | No |
Exterior | Plastic |
Manufacturer Part Number | MS309 |
OEM Part Number | Supports CAN (Controller Area Network) and all other current OBD II protocols |
Special Features | Compatible with domestic, Asian and European vehicles, 1996 and newer, Views freeze frame data, Turns off Check Engine Light, clears codes and resets monitors, Displays DTC definitions on screen, Retrieves generic (P0, P2, P3 and U0), manufacturer-specific (P1, P3 and U1), and pending codes, Displays monitor and I/M readiness status (emissions), Erases Codes and turns off Check Engine Lights, Retrieves vehicle identification information (VIN, CALID and CVN), Supports CAN (Controller Area Network) and all other current OBD II protocols |
Voltage | 12 Volts |
Wattage | 2 watts |
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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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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | Autel |
Display resolution | 128x64 |
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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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This Item 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 | Recommendations | dummy | dummy | dummy | dummy | |
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Price | $22.99$22.99 | $22.99$22.99 | -9% $20.99$20.99 Typical: $23.09 | $29.99$29.99 | -17% $37.99$37.99 Typical: $45.99 | $21.99$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 | — |
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From the brand
For Automotive Since 2004
From MS300, MS309 code readers to MS908S Pro, MS Ultra, IM608 Pro, E-car charging pile etc. - Autel is Built for Automotive Diagnostics
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Autel is one of the world’s lea.ding manufacturers of professional automotive diagnostic tools and accessories in the automotive aftermarket since 2004.
Autel has been committed to creating ma.ximum value to customer worldwide to satisfied various needs by providing qua.lity-assured, user-friendly, and innovative products.
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How did 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 distrib.utors across the world, Autel is dedicated to develop premium vehicle aftermarket products.
What problem are we solving?
Autel is continously creating leading automotive aftermarket products, such as diagnostic tools, TPMS, IMMO, battery, e-car charging pile products &services.
Product Description
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
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
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.
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
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
ASIN | B001LHQBMC |
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Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #20,615 in Automotive (See Top 100 in Automotive) #129 in Code Readers & Scan Tools |
Date First Available | June 29, 2017 |
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers 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
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
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
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
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
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
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
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
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
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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. (Hey, we all drop stuff form time to time, and this little guy can take it) It is very easy to use and to navigate the menus.
More often than not, when someone is considering purchasing this type of, "Stored Code," scanner, they are purchasing it because they have a, "Check Engine," light, (or MIL - Malfunction Indicator Light -same thing, just different terms for it), that they'd like to resolve, and often are addressing this before their vehicle inspection runs out. Though just resetting the codes will NOT help you pass inspection, it WILL help you to determine if repairs made are going to ALLOW you to pass inspection more quickly.
Here's how:
You read the codes, and PROPERLY DIAGNOSE the cause. After making what you believe to be the corrections needed to resolve the issue that caused the code(s), you use this to reset the ECU. Now, search the internet for your year, make and model vehicle and the term, "Drive cycle." For example, 2005 Subaru Forrester drive cycle."
What you are looking for in the search results is instruction for driving the vehicle in such a way as to provide all of the operating conditions needed for all of your vehicle's I/M readiness monitor checks to complete their testing and report the status in the shortest time possible. Every manufacturer creates these, "Drive Cycle," routines so that the factory automotive technicians in the dealerships can make repairs and assure the vehicle's compliance with local emissions laws as quickly as possible.
An example of a possible drive cycle (that I'm just making us as an example), might look like:
"Allow vehicle to completely cool overnight. (All that really matters here is that the engine be stone-cold before beginning the drive cycle on that particular year make and model. Not all vehicles require this first step, or any other step I make up here. This is just and example) 1.) Start vehicle. 2.) Accelerate slowly to 30 MPH, and maintain speed for 45 seconds. 3.) accelerate slowly to 55 MPH and maintain speed for 30 seconds. 3.) slow to 40 MPH without using the brake or downshifting, and maintain speed for 45 seconds. 4.) Accelerate to 55 mph and maintain speed for 4 minutes. 5.) From 55 mph, come to a complete stop, and place the shift leaver into the "Park" position with your foot off he brake and off the accelerator within 30 seconds. 6.) Allow the engine to idle for 1 minute . . . " Etc.
Some drive cycles are fairly involved, and some are very short and simple. None the less, if you can complete the drive cycle without the check engine light coming back on, that's a good sign. Now, follow the instructions that come with Autel MaxiScan309 to connect the unit. You'll have to shut the engine off. (In the industry we call this, "engine off - key out," as this eliminates any confusion about what position the key is in. If the key comes out, you're good) Put he key back in once connected, turn to the RUN position, and check the "I/M Readiness" codes.
If all I/M Readiness indicators are reporting either, "OK," "Pass," or, "N/A" your car will now pass that portion of the state inspection. If any say they are incomplete, (I think this scanner says, "INC" for those if memory serves), you need to do the drive cycle again to get them to report. Some of the monitors will say, "N/A." That is FINE. Manufacturers have choices in how to approach emissions compliance on different models, and often several of the monitors do not need to be used, just so long as the ones the manufacturer DID choose to employ do enough testing to ensure compliance with Federal Regulations.
One last tip, and this is a real important one. If you don't have the background to decipher diagnostic codes and interpret the likely causes of them, DON'T FRET! Let's say your 2010 Ford Whatchamacallit is throwing a P0442 code, as reported by the scanner. Just search the internet for, "2010 Ford Whatchamacallit P0442 code causes," and you will begin to find all of the information needed to further diagnose the fault, AND are also likely to read the most PROBABLE causes in many cases. Consider the information you find carefully, as there is not test information needs to pas in order to be posted on the internet! lol When you have done enough research about the code's appearance on YOUR specific vehicle, you will easily see trends that point to the most LIKELY causes too. From there, you can start researching how to accurately TEST each suspected part to find out if it really IS the cause or not. Before too long, you should be able to find the REAL cause, and PROVE the part defective for yourself so you are not performing unneeded repairs hoping a, "shot in the dark," will fix whatever is wrong.
If you find this review and the other information helpful in full or in part, please click the "YES" box where it asks if it was helpful or not.
And does the job well. Can’t work on some vehicles but it does the job for the Toyota well.
The fuel cap thing is annoying because even the fuel cap is tighten again, it will still take a few start-up and short trips before the light will disappear and I wouldn't know it is just a gas cap or something big. This little scanner let me know it is a big deal that requires immediate attention or it is just a fuel cap thing that set off the "check engine" light. It saves me from worrying and also saves me time from going to local mechanic shop for potential charges and diagnostic fees. And if I have to get my car fixed, I will at least have some idea about what is wrong with the car from doing some simple research online with the codes shown on the scanner.
Oh, this is what I found about people saying about the scratched display screen. Mine is in brand new plastic packaging, but the display screen has some little scratches. Based on the way the MaxiSan was packed, it is new for sure but I wouldn't understand why. Read some more reviews and comments online, later learned that it is the screen protector on the display got scratched, not the actual screen. The protector can be removed and now the display screen is very clear on mine. The manufacturer should have put a little note on the user guide, so no one will get frustrated or misunderstand about getting a damaged good or used item.
This tool makes getting basic readings from the computer easy. The most frequent problems are also easy to repair if you know what they are. This tool will tell you if your engine is running rough because of a vacuum leak. (It won't tell you where the leak is, but usually it is related to the PCV valve. If not, some poking around and wiggling of vacuum lines will often reveal the problem.) A vacuum leak is usually easy and cheap to repair yourself.
This tool will tell you if your gas cap is bad. This is the most frequent reason the "check engine" light comes on. Again, a cheap, easy repair.
This tool will tell you if the oxygen sensor is bad. If your gas mileage has gone terribly downhill, and the "check engine light has come on, chances are this is the problem. Having a tool to confirm this is very helpful. If you can replace a spark plug, you can replace an oxygen sensor (please use the right socket!!!!).
Beyond these issues, it is helpful to walk into your favorite repair shop and report a problem and the trouble codes you have discovered. You are likely to get a much more accurate estimate of repair costs right away instead of having to wait (and often pay a lot!) for a shop diagnostic scan.
This tool will more than pay for itself if you are able to do even one repair on your own. It is a great investment.
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Reviewed in India on October 31, 2018