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Autel

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

    • Based on 16,291 reviews
Condition: New
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  • – 4-month term
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 24
Order within 14 hours and 17 minutes
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Features

  • On-Screen DTC Definition, Save Time & Easy To UseAutel 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 infoThe 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 CodesKnowing 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 LightWhen 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 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.
  • Works on 99% VehiclesAutel 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 99% OBDII-Compliant vehicles, passenger cars or light trucks. For OBD2 cars, usually, post 1996 for US market, post 2006 for EU market and post 2009 for Asian market.
  • No-Worry PurchaseAutomotive OBDII scan tool MS309 comes with a 12-month warranty and free lifetime technical support. If you need any technical support, please feel free to contact us at autelofficial @ outlook . com. NOTE: It does not support the full engine system, if need, pls consider ML629/ MK808BT, etc.

Brand: Autel


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


Display resolution: 128x64


UPC: See more


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


Screen Size: 1 Inches


Native Resolution: 128x64


Power Source: by OBD2 cable connect to car


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


Manufacturer: Autel


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


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


Brand: Autel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 24

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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Top Amazon Reviews

    • đź‘Ťđź‘Ť 2nd generation Prius (2007)đź‘Ťđź‘Ť
The media could not be loaded. Works well with my 2007 Prius in detecting the hybrid battery pack Data Trouble Code (DTC), P0A80. I replaced my original hybrid battery with the Green Bean refub hybrid battery. As one would expect, the replacement batteries they use are a Frankenstein battery (a whole battery composed with used and aged battery cells). Since May of 2021 (Sept 2023 at time of review), Green Bean has had to come out to replace the battery three times, and that’s not to consider the original replacement of the original. The good: Green Bean’s lifetime warranty, price, they take phone calls on Sundays, quick turn around from time of call to time of repair, they come to your location, never any hassles, except…….they absolutely require a photo of the DTC of P0A80 “replace hybrid battery”. The bad: expect to use the warranty on their batteries, inconvenience of your vehicle being down for a few days. Auto Zone, O’Reilly, etc have Innova OBD2 readers and they just don’t work for my 2007 Prius. Sure, I can drive all the way to the dealership, wait a few hours, and pay $170 for them to diagnose the issue, but why would I do that when I have this $20 Autel code reader that is small and so simple to use like this one? The device is pretty straightforward to use. The instructions are online and downloadable; however, Autel’s website does not make it easy to find the manual, and I was unsuccessful in getting telephonic customer support. Their automated answering service gives the caller the option of a call back, but they don’t unfortunately. Anyway, to get the manual, just do a web search for your specific OBD2 code reader. ... show more
Reviewed in the United States on September 27, 2023 by Ol' Hesty
    • Easy to use and no monthly code site fees.
Easy to use and better than the FIXE Scan code reader everyone is making such a big deal about. Able to figure out the problem and clear the unnecessary codes right away. The FIXE can't do that.
Reviewed in the United States on October 24, 2024 by Carlos E Martinez
    • Great device!
This scanner is very easy to use. Works like it supposed to. Good for those annoying check engine lights. Tells you the problem, then let's you clear the code if you so choose. It is compact and keep it in my clove box. Delivers live data so you know what is your problem.
Reviewed in the United States on September 28, 2024 by Plugg
    • good and bad points
I bought this [with my own money not a free on for a review] hoping I would not have to use my very expensive hand held ones anymore which are cumbersome and you always pretty much have to go to the computer to get the codes and search on the net to see what they mean, possible causes and possible fixes. I bought one on amazon similar to this one that was around $18 and had to buy a couple of apps for my phone [around 10 dollars for the apps] to be able to use it. It was OK but I wanted MORE information. I read amazon reviews and realized this was the Cadillac of them at this time [Jan 2016]. I got it in 2 days with Prime. I plugged it on my 3 vehicles and it gives us a plethora of information. We have since sold our hand held ones on craigslist since this thing works so good and gives you unbelievable amount of information. [I do have a couple of complaints, later in the review.] I have been looking for another used vehicle and this device has saved us thousands $$. Your phone is connected to the internet so it goes out and gets you a lot of extra info right away & also updates the device software if need be. It even gives you information about when was the last time someone ERASED ERROR CODES which is happening across the dealers & private sellers in the 40207 and 33186 zip codes more than you would have thought! [in DAYS:HRS:MINS and also miles]. Don't forget anyone can get a cheap code reader for less than 20 dollars and erase all codes! The serious codes that the vehicle computer reads will come back immediately if erased, others will take a day or 2 -or longer-of driving time to come back in. To late if you bought a vehicle from a private owner and it's in your name already. Its funny to see the face of people when I tell them, these are all the error codes that the vehicle is giving me, the possible causes [yes this thing does tell you that too!] and BTW someone erased the codes 3 days 22 hrs and 3 minutes ago! It will give you all recalls for the make and model has had from day one! You can ask the owner or dealer to make sure those have been addressed or not. Most will claim [dealers and private owners] that no one has erased the error codes. I say to them "well sir or madam, this is what YOUR vehicle computer is telling my device. It pretty much saying that someone came in here with a key and a code reader, plugged it in and erased the codes 3 days 22 hrs and 3 minutes ago!" When they finally fess up [not all of them do] I just ask them what were the codes that were erased [to see if it was something easy like they didn't close the fuel cap correctly or something serious like -which I got on several different vehicles without any lights on the dash-a catalytic converter, an O2 sensor or both, anti lock brake codes, steering angle sensors, low or high voltage power supply, tire pressure warning system codes, airbag malfunctions, etc]. This purchase has saved thousands on repairs on several vehicles I checked and would have bought!. Sellers were asking top dollar for these vehicles because they had “no lights on the dash” and they had done a cleaning detail on the vehicle! I even took a vehicle that I really liked to a dealership and paid for an inspection. They didn't get what I got on the code reader at first [or just didn't plug their code reader] but when I complained to the service manager, they hooked up their reader and got the same stuff [erased codes] and other malfunction codes that were not showing on the dash. BTW this device only tells you that codes were erased, it does not tell ou which ones. They refunded my inspection money because of their embarrassment. That right there paid for this device! I also have run in a couple of situations where the person selling the vehicle has advertised a higher model of the vehicle I was looking at to get more money out of it. These are vehicles in the 7k to 15k range I've been looking at [clean title only]. This has happened with private sellers who either buy the LXE [as an example] letters from ebay or a junk yard [I am guessing] and put the new letters claiming the vehicle is a higher level that it really is. The software on this device reads the vin number goes to the net and gets the EXACT model and make from the vehicle. You should see the face of people when I tell them this is a L model [the lower end one ] and not the LEX one! Some of you would say this is on the tittle, well…. Not always. I have a Honda Odyssey and the title does NOT say which model it is! I think everyone reading this knows there are lots of people who are buying vehicles at auction, cleaning them up and sell them for profit posing as regular owners. A vehicle fax can be $40/vehicle and gets expensive quick if you do several cars. [I like vehicle carfax over other because they give you a lot more information on regular service etc than their competitors]. In my area code and in the MIAMI area -which is were I have been also trying to buy a used vehicle- there are tons of people selling more than 10 vehicles a year [which are required by law to get a dealer license and do not]. When you ask them why is the vehicle not on their name, or why the have 4 vehicles for sale out of their house, or why was the title on the vehicles he/she's selling less than 3 weeks old the come with the story about them getting a better vehicle or sob storries. If you pry hard enough they'll tell you they are "wholesalers" but don't have the required licenses insurance etc and are less than reputable in the disclosure of their vehicles they're selling. Don't get me started on the habitual “private” sellers of salvage but repaired title vehicles! Use this device wisely and save yourself a lot of headaches or negotiate a better price on the used vehicle you are buying and also check your existing vehicles and telling your mechanic exactly what is going on. Be an informed consumer. I have two complaints about the device: 1- When looking this couple of months for a used vehicle in zip code areas 40207 and 33186, I usually start the vehicle with it plugged in, let it read all the codes, vin number etc, while the vehicle is warming up, then I drive the vehicle for about 15 to 20 mins to get more info on what the vehicle is doing while you drive it etc and hope that one of the erased codes pops up again. I have lost connection with my phone and the device several times while driving, where I have to stop and reconnect it and therefore lost all data that was being recorded. I thought it could be my phone connection via the Blue-tooth, so I downloaded the app on my wifes phone and the same thing happens! They are both newer iphone 6 and 6 +. Sellers are not to happy to go around and drive the vehicle again for 20 mins so I can record results again! 2-I have also had the device fall from the ODBII plug several times. This kind of sucks because you have to start the process all over again and lose all the data that was there before. I have checked about 20 vehicles in the last 3 months. I usually email myself the data while the app is running and they show the results from that email to the seller if there is something wrong since I haven't figured out how to save the data in the phone. I have resorted now to getting some blue tape and taping it around the plug and the device when its plugged in. Not something I'm happy about. Hope this helps some of you out there. ... show more
Reviewed in the United States on January 14, 2024 by kevin harris
    • Impressive little device
This inexpensive device was able to clear all codes on my old Mercedes R350, which my OBD2 Bluetooth scanner was not able to do. I had to tweak the procedure a little bit, based on prompt help from the manufacturer's support (support@autel.com). After reading the codes with the engine on, I turned the ignition key to the "equipment" position (the one prior to ignition) and was able to clear the codes. Previously I had turned the engine off going past the "equipment" position and then returned to it, which had resulted in repeated failures. ... show more
Reviewed in the United States on October 29, 2024 by Topolino
    • Nice
Easy to use, easy to plug in. I'm still trying to figure out how to scroll between the codes but I haven't played with it for very long so I'll figure it out eventually.
Reviewed in the United States on November 13, 2024 by Jacqueline C Hayes
    • AMAZING!
As someone who literally knows nothing about cars this helps when my check engine light pops up! It reads the codes written out for you simply to read. The accuracy is on point hasn't steered me wrong. It's worth the money!
Reviewed in the United States on November 9, 2024 by kelson mitchell
    • Simple but it works
This is a very simple code reader. It does what it needs to do. It provides the code numbers and will also erase them . It operates as expected.
Reviewed in the United States on September 29, 2024 by Richard Jester

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