Autel MS300 OBD2 Scanner Code Reader, Turn Off Check Engine Light, Read & Erase Fault Codes, Check Emission Monitor Status CAN Diagnostic Scan Tool

Fantastic. Does what I need, reads engine codes, and can reset them Amazing tool for the price It gives you a readout of the codes and you have to look them up online. You can pay 3or 4 times this to get that feature but why bother. For $20 it's perfect

i can't believe how simplistic this device is compared to the high end scanners and it just works. i mean what else could you ask for. its so simple. plug in, turn key, it auto detects the car's programming and if there is an active code will automatically scan. is very fast and effective. i used on 2 cars, my friends Pontiac grand am and my Pontiac g6. my g6 had no codes on it just wanted to see the difference. if there are no codes active it will not auto scan. however you can still manually make it scan, and it also can see certain things from your emissions systems. not everything but some things, but it really just tells you if they are working or not. if the programming is compatible, it can also pull the VIN off the car and as i found out, i can't on every car. my g6 it could see the VIN, while my friends grand am, it could not. still for the small affordable price of 20$ has already saved me 110$ in diagnostics fees. im sure will save me much more in the future. The other nice thing being, even if this thing broke after 1 use..... it cost 20$ and electrical diagnostic fees at a shop where i live are 110$..... even ONE use would pay for this product. and yes it doesn't give you a description of the code but who cares.... most the software in high end scanners has to be constantly updated to be accurate. it reads code, you type code in Google and presto..... you saved yourself a ton of cash. i like cash. if you like cash you can order too! edit (11-4-15) - I have owned this for over three years now and has been extremely valuable. I have had several different cars since the time I originally bought this and used at least a half dozen times on family/friends cars to pull codes. This thing is great, even though these can be borrowed for free at auto parts stores to pull codes, it is more convenient to do it yourself in your own home on your schedule. This thing even stunned me when it could read a 2004 Audi A4 as VW and Audi normally are on a completely different communication/diagnostic system than most other cars in the world. Also I am pretty rough with this thing because it was so cheap and I wouldn't care if I had to replace and it has continued to work. It may be cheap but has been extremely valuable to me in pulling engine codes. I wish there was a rating above 5 star!

for those with link error, I didn't read the manual but you need the ignition in the ON position (not ACC or OFF). For those with codes that it read that had already been repaired... your mechanic should have cleared the codes in the computer after the repair but did not. Now you can clear them yourself. :) It's possible the repair didn't work, either, but if the MIL (malfunction indicator lamp, aka check engine light etc) didn't come back on, you should be fine. ----------------------------- This Autel scans my 1998 Subaru Legacy and read the P0440 code just the same as the Actron. It cleared the code successfully and the MIL turned off. This unit also scans my wife's 2010 Toyota RAV4, but it doesn't have any check engine light to confirm codes or any of that stuff. The included manual comes with generic DTC definitions, but the definitions are so short you need to search them on the web anyway to translate and determine the severity. That's true with just about any scanner, especially those in this price range so I was expecting that. The manual does not list manufacturer specific codes that the tool presumably reports, but you can get those on the web. I've found that obd-codes dot com to be a good resource for _most_ DTC generic and manufacturer specific definitions. It also includes other details for generic codes that are helpful. It is true that most auto parts stores will scan your car for free, but that's not always convenient. Plus, if you have an intermittent problem that occassionally trips the MIL, you might dismiss any future instance of the MIL as the original issue, and potentially cause harm to your vehicle. If you own a scanner, it's easy to regularly verify. I also own a more expensive Actron CP9180 but I bought the Autel to leave in my car at all times. Since MS300 so inexpensive I wouldn't be too upset if it gets baked in the summer heat. This product feels like a toy (very light and it has a short short cord...maybe 18"), but it seems to work. I only gave it 4 stars because of the feel of the product, but quite honestly I wasn't expecting anything more based on the price and the fact that these are made in china. My Actron has a lot of features that I'll never use (I'm just a consumer, not a mechanic), but it is a solid product that will presumably last much longer than the cheaply made MS300. Even though I paid a cheaper price for the Actron on eBay, you can get three MS300 tools for the same price of the Actron, and the MS300 tool has every feature that normal consumers like myself need.

It works amazing so you can even clear your check engine light with it.

As with anyone who has had the check engine light pop on while driving, my heart jumped to my throat when that baby lit up my dash on the way to work. And then it splashed back down to the pit of my stomach...hard! I guess it is the not knowing of what is hurting my little commuter. I wanted to know. This brought on the search for a dependable, but not expensive, scan tool to find out on my own what the heck was going on. I found this little jem and decided to give it a shot based on the mostly positive reviews it had. NO REGRETS! This product worked without any glitches. My vehicle is a 2003 Hyundai Elantra GLS and I think the hardest part of the process is finding the link connector in the car (it is down below of the steering wheel under the driver side dash, if anyone is interested, you have to feel for it because it is not visible). Once I found it though, it was all down hill...in a good way. It fit perfectly and worked as stated in the manual. Just follow the steps indicated and you will get the info you need. In my case, all I was looking for was the reason for the check engine light to turn on. I got my answer with this little scan tool. In less than five minutes I got the DTC code (this is explained in the manual) that set of the MIL. Once I got the code, I went straight to the auto shop and told my mechanic what I found. I have a good honest "guy" that was surprised, but also pleased, that I had pin pointed the problem for him. But, the tool also gives more info on the car than just the problem codes. It can pretty much give you the status of most of important components in the car. It was a relief to find out my car was in great shape, except for just one code. Very much a relief. Well, from my positive rating, you can figure out that I definitely recommend this producted. It is a simple, but valuable tool to have if you drive every day and depend on your car. I have used it only once, and will be happy if I don't have to use it again. I mean this in a good way, but if I ever get a check engine light, it won't freak me out because I have my own diagnostic tool to see what is going on with my beloved 4-banger! Note: The manual comes with a list of generic code definitions. Once you find the code, you can use their listing, or look it up on the internet. I did both just to verify.

I bought this to use on my 2008 Honda Fit. The unit is very basic with few options and is easy to understand. My car engine light has lit up about a half dozen times in the time that I have owned this tool. Each time I have tried to diagnose the problem using the scan tool and following the instructions exactly. Every single time I have had the same result; the scan tool does a check and finds no problems. This leads me to manually check the gas cap and other easy to spot problems trying to fix the issue myself. So far I have been lucky and the problem has either been vapor lock i the gas tank or a dirty air filter, so the light goes off by itself. I am giving this three stars because at this point I honestly don't know if this tool in working correctly or not. It might be the case that my car's error codes are not recognized, though the tool gives no indication of that sort. The tool lights up and I am able to browse through all the menu options, but it has never given me any meaningful feedback when connected to my car. If I ever have a problem with the engine light that I can't figure out myself I will bring the car to an Auto Zone shop and ask them to scan it for free (the dealer charges over $100 for this service). I keep the scan tool around on the off chance that it might actually detect a problem someday, but up till now it has done nothing for me. I don't mind as it wasn't very expensive and much cheaper than taking it to the dealer. I have never tried it on another car, but if I ever do I will update this review with my results.

It's not often that I will write a review on a product that I have purchased as long as 11 years ago. But by now I have used this product many times on several different vehicles (1998 Honda CR-V, 2002 Honda Accord, 2015 Honda CR-V, 2015 Mazda 3, 2016 Hyundai Sonata, 2018 Honda CR-V, and more) and have some thoughts to share based on my usage of this scan tool over 11 years. First of all, this thing, even though plastic, is plenty durable. I have had this device stashed in the back of various vehicles for years, getting knocked around, heated in the sun, frozen in the cold, jiggled millions of times over millions of Chicago potholes, etc. And what I can report is, it still works just as it did on day one. Quite durable. Secondly, know that this is a very very basic ODB2 scan tool. Nothing fancy here. For example, it will display trouble codes such as P0301, but it won't actually tell you what P0301 means. But you could then pull out your smartphone, open a browser, and search "P0301 trouble code" and see all the details about what that code relates to and what might be triggering that trouble code. So, it's a little more work than having the description displayed right on the device. But, that's the tradeoff for the very inexpensive price. But then again, if you spent a bit more to buy a code reader that did display the English description for the trouble code, it most probably still won't tell you what might be triggering it, and you'd still have to research on the internet to get that information anyway. Consider: How often do you expect to use this device? If only every several months or so on average, then it's really not a big deal to have to look up the trouble code on the internet in order to obtain the code description and possible causes. And for the low price, that's an acceptable tradeoff for me. Thirdly, the menus take a little practice to figure out how to navigate them and find things, but you'll catch on in a minute or two of playing around with it. Just pay attention to what the screen is displaying before you hit the next button, and you should do fine. Don't just start hitting random buttons because you feel like you don't know what you're doing. That'll just leave you lost. Aside from that, I have found this to be a very durable and reliable tool, and have gotten my money's worth out of it many times over already. For that reason, even if it's not anywhere near the fanciest and most capable of scan tools, it earns 5 stars from me. IF you need only a basic tool and at the lowest price point, this one is a good choice, and I can recommend it after 11 years (and counting) as a satisfied user.

Works great. Give correct codes. Easy to use