ROTTAY Car Check Engine Fault Scanner: OBD2 Scanner Diagnostic Tool, OBD2 Scanner Code Reader, CAN Diagnostic Scan Tool, Car Code Reader for Car 1996+, Read and Clear 40000+ Fault Codes
$84.99
ROTTAY OBD Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD2 Protocol Vehicle (Black)
893 reviews for ROTTAY Car Check Engine Fault Scanner: OBD2 Scanner Diagnostic Tool, OBD2 Scanner Code Reader, CAN Diagnostic Scan Tool, Car Code Reader for Car 1996+, Read and Clear 40000+ Fault Codes
4.83
/5Based on 893 rating(s)
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Reviewed by 0 customer(s)
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Jeffrey
Fast and accurate reading of my car's error code. The font is large and easy to read. I give it 4 stars because it has a micro USB connection. If it has a USB C connection, I would give it 5 stars.
November 23, 2024Reply -
Egbert
Works great for reading codes, I ended up buying an Autell Maxicom, I needed to do some more in depth work.
November 22, 2024Reply -
Martina
I am impressed with the quality of this reader! It feels nice and solid in the hand. It has an easy to read, bright and colorful display. There are a lot of test features, I have only tried a few of them so far, but overall I am very happy with this purchase.
November 20, 2024Reply -
Lucia
Use this to reset the check engine light and view basic information. I have seen people use this to pass smog tests on older vehicles that don't really give much information on the smog test, so as long as the check engine light isn't on you will pass the test.
November 20, 2024Reply -
Alison
Easy to use and well made.
November 20, 2024Reply -
Leigh
Easy to use, useful for identifying problems.
November 20, 2024Reply -
Edeline
I bought this reader to see if I had any trouble codes. I found one and was able to fix it. I was then able to clear the code easily. It is very easy to use. I really like the battery monitor. I can see if my battery is in good condition. PS: I had it in my truck and was able to use it on a Mercedes Benz that was stopped on the road.
November 19, 2024Reply -
Logan
Read reviews online. This is the fastest and best value out there. It's amazing and saved me so much money!
November 19, 2024Reply -
Lois
I needed a scanner that could read real time data to diagnose my problem. This one did the trick!
November 17, 2024Reply -
Fitzgerald
I liked how easy it is to navigate the system to see what's wrong with my vehicle. It saves time and money instead of having to go to a mechanic.
November 16, 2024Reply -
Louis
The product was easy to use and did its job. I only returned it because I received one as a gift.
November 15, 2024Reply -
Graceful
It's not as good as advertised
November 15, 2024Reply -
Lorena
little difficult to read, better take your glasses… otherwise it worked fine.
November 14, 2024Reply -
Juliet
Very useful for my car.
November 14, 2024Reply -
Randolph
This device is very handy and worth the money. It scans for diagnostics and resets pesky codes. Being able to check the battery is a great feature if you feel like it's getting low or just to keep an eye on it.
November 13, 2024Reply -
Amiable
Lots of features for the price. I used it on two different vehicles, read the code and fixed the problems. Also cleared the codes.
November 13, 2024Reply -
Gresham
It works fine, but there should be better instructions.
November 13, 2024Reply -
Teri
The unit works great and is easy to use, seems sturdy and well made. I would recommend this scanner.
November 12, 2024Reply -
Mona
I found out why the vehicle a Harrier was giving off an alert signal and searched on Google to find out what the problem was. The product is very easy to use and practical.
November 12, 2024Reply -
Daley
Great tool for DIY jobs, easy to use interface as it is wired it works very fast, forget about Bluetooth connection problems, just plug and play! Multiple languages and multiple tests to run on your car, it allows you to read error codes and also clear the codes when needed. This is a very good acquisition!
November 11, 2024Reply -
Harley
Surprisingly easy to use. Large, clear display. Worked on all 6 cars I have access to. My old ODB reader didn't work on Mini Coopers. This one did. Showed all the expected errors I knew from other readers. Even showed me info on my batteries that I would normally need to get from my advanced battery charger. None of the hassle of the smartphone app models. No need to turn on Bluetooth, pair it, pay for an app, go through a bunch of menus, or any of that mess. Does everything I need it to do. This will be my go to ODB reader from now on.
November 9, 2024Reply -
Unity
Works like a charm! I bought this to use on my vehicles and it also has a battery tester. I was able to test my battery and also run it for any codes. I am going to buy another one for my dad. I highly recommend this if you need to scan for any engine codes or just to test a battery.
November 9, 2024Reply -
Nerita
It worked well to clear the check engine light/code. However, the instructions that came with the product were of no use. I found a YouTube video that explained how to use all the features.
November 9, 2024Reply -
Aimee
I've always gone to my uncle to get the codes read as we're a couple who drive until the wheels fall off and are from a family of the same. It's nice to finally be able to put it in our own garage so we have an idea of what problem we might be facing and can Google Car Doctor some potential results if problems arise. We haven't had any major problems that we didn't know what to try thank goodness! but it did show the same codes we already knew a vehicle should show so we're happy with the accuracy when the occasion arises. Good value for money so far!
November 8, 2024Reply -
Gifford
The first one I ordered didn't work properly, but they sent me a replacement right away. The reader works great and for the price, it's a real bargain! I would recommend it to any hobby mechanic.
November 8, 2024Reply -
Bright
Within 5 minutes of delivery, they diagnosed the check engine light issue on my car. It's a simple plug and play operation and provides the code right away. I will definitely keep this product on hand for any future issues.
November 7, 2024Reply -
Marlon
Excellent product and works very well
November 7, 2024Reply -
Beatrice
Easy to use and great for finding problems with your vehicle.
November 6, 2024Reply -
Power
I'm glad I got it. I bought a new battery. I started having problems with the new battery after a few days. I took the battery back to get a replacement. The company said no because it was in good condition they didn't test it. I took the employee to my vehicle reinstalled the new battery and showed him with this battery reader that the new battery had a low voltage. I got my replacement and even tested the new battery to make sure the company wasn't trying to give me another low voltage battery.
November 5, 2024Reply -
Trustworthy
I like that the scanner comes with a long enough cord so I could sit down while doing it. The features and ease of use make it a great addition to your automotive toolbox.
November 4, 2024Reply -
Quenby
This has been a very useful diagnostic tool. It has a good design and size and fits perfectly in the glove box. I really like that it has real time battery consumption with a graph that accurately reads my regular voltmeter. My check engine code was easy to read and even easier to clear. Definitely a great buy for car enthusiasts!
November 3, 2024Reply -
Fleming
Excellent scan tool. Very good price, especially for all the features it has. I would definitely recommend it to anyone.
November 3, 2024Reply -
Marissa
I needed an ODB II reader urgently to diagnose a problem with my truck. I was able to get one quickly and it worked great. It gave me confidence to understand the problem and talk to the mechanic about fixing it unfortunately, it was beyond the "operator maintenance" level.
November 3, 2024Reply -
Norman
It's not very sophisticated, but it does exactly what it's supposed to do and does it well. I'm happy with my purchase because I was able to use it to help identify small problems with my cars.
November 3, 2024Reply -
Kendrick
was amazed at the information this scanner gave me. I will definitely have to read up more on what some of the information is telling me, but I certainly know the basics and the information was very helpful. The cord is the perfect length to allow me to sit in the driver's seat while the unit is plugged in and scroll through the screens. The buttons are easy to use and understand and the quality of the color screen is crisp and clear. The size is perfect to fit in the storage compartment under the back seat of my truck where it will be the next time I need it. I would highly recommend this unit to beginners and mechanics alike.
November 1, 2024Reply -
Queenly
I am so glad I bought it that I have no need to go to any auto shop to get a reading.
November 1, 2024Reply -
Silver
It works well compared to the last one I bought.
November 1, 2024Reply -
Shawn
Great product! Worked like a charm.
October 31, 2024Reply -
Hamlin
The car would not shift out of first gear. It was coded as a faulty TSM transmission shift module. A diagnosis was performed and the code was cleared. It now shifts normally. It paid for itself with the first use! Totally impressed!
October 31, 2024Reply -
Prosperous
This device is truly plug and play. Within a few minutes of looking through the manual, I was able to diagnose the reason for the check engine light. I also love the inexpensive price.
October 30, 2024Reply -
Trista
Worked great. Just as described.
October 30, 2024Reply -
Laughter
This scan tool is very easy to use. You can read codes and view live data. Live data is great for checking various monitors on your vehicle including coolant temperature and battery voltage. It is essential to have one of these scan tools on hand.
October 29, 2024Reply -
Regina
Excellent decision, it is very useful as described.
October 29, 2024Reply -
Alexandra
This easy to use device is a great addition for anyone who has a vehicle with these alarm alerts. It puts your mind at ease knowing what the check engine light really means. Now you can go to the shop and know if they are telling you the truth or not. Once you know where to plug it in, you will be on your way to making informed decisions. This is a great value for money product that will help you out time and time again.
October 28, 2024Reply -
Brooke
This product should come with an instruction manual. It's pretty good for the price.
October 27, 2024Reply -
Rosemary
Exactly what my husband wanted
October 27, 2024Reply -
Estra
Great basic scan tool. Easy to use and easy to read display. Provides the code and a basic description of the problem. My previous scanner only provided the code and I had to look it up. Battery status and test function is also good. Definitely recommend.
October 26, 2024Reply -
Elizabeth
This OBD2 scanner diagnostic tool arrived well packaged and in good condition. It is easy to use, as per the instructions and after watching some online videos. The interface is user friendly. I am glad I ordered it. Now, I can find out why the check engine light came on before taking the car to a mechanic and paying him to do the same. Again, with the help of the online videos, you can replace some minor things yourself. Overall, I am satisfied with this order.
October 26, 2024Reply -
Bernadette
Excellent product. Everything is good. Excellent presentation and packaging. Excellent price. Excellent color screen. Well written instructions with color photos. I had bought this for my son, but I am going to keep it for myself.
October 25, 2024Reply -
Rita
Easy to read and easy to erase code.
October 25, 2024Reply -
Bridget
usually have older vehicles and I got tired of driving to the auto parts store to get free codes read every time a vehicle threw a code so I thought I would check out how much I could afford to pay for my own code reader and this one was very reasonably priced and had all the features I needed to read and clear codes as well as check battery life. It has a large color screen and is easy to navigate with the cursor buttons. Overall I am very pleased and would recommend it.
October 24, 2024Reply -
Reginald
The product works great at reading codes, it lets you know it's ready, meaning your vehicle is ready to go through the state inspection machine and you'll know if it passes or fails.
October 24, 2024Reply -
Ellery
I bought this code reader so I could see what the codes were on my vehicle and be able to repair or troubleshoot the problem as it arises. I like the features, it reads live data and also allows you to clear engine codes. It works well.
October 24, 2024Reply -
Melvin
Easy to use and fast connection. Reliable information, easy to detect faults and fix them during troubleshooting, as well as other functionalities.
October 23, 2024Reply -
Orva
Able to measure battery voltage and estimate state of charge. Helped me read oxygen sensor error, input and output voltage, and fix and clear code.
October 22, 2024Reply -
Ezra
Easy to use, plug and play. Works exactly as it should.
October 22, 2024Reply -
Fletcher
This is a great basic tool for reading check engine lights. It is not a full test tool, but primarily a code reader/light clearer. It does not read airbag or other faults. It is useful for basic DIY or knowing what the codes are to avoid getting ripped off by mechanics.
October 22, 2024Reply -
Tamara
I used this device to diagnose a check engine light I have on my Toyota Prius. It was easy to use. Just plug it into the OBD2 slot and press enter. 6 codes came up and I was able to clear them. I drove about 30 miles so far and the codes did not come back. Not a bad code reader to have in the toolbox.
October 22, 2024Reply -
Teresa
The device made a loud noise when I took it to the Proud Boy bar in Clackamette Park. 100% true. I was asked to leave and take my "bright yellow box" with me.
October 22, 2024Reply -
Merle
Very easy to use. Instructions are there if you need them, but it walks you through it step by step. It gave an accurate reading the first time I used it. It was an issue I couldn't figure out, but it was covered by a recall, so the dealership confirmed the issue and took care of it.
October 22, 2024Reply -
Chief
love the quality and how fast it reads data and how accurate it is. The look is good, I dropped it a few times and it still works fine. It is compatible with others. It is versatile. I love the product.
October 21, 2024Reply -
Rolf
This is a really good handheld scanner that has all the features available in handheld devices. For the hobby mechanic, it is priceless!
October 20, 2024Reply -
Simone
Well built and easy to use.
October 20, 2024Reply -
Ramsey
Excellent product. Saves a lot of time. I don't know why I waited so long to buy it.
October 20, 2024Reply -
Moorish
The battery tester is the best. This ob2 scanner has much more than just a code reader, it reads the monitors.
October 19, 2024Reply -
Elvira
Easy to use tool. No more going to the store and waiting for them to run my code when I have this tool available! It has everything you need for check engine codes and also has the ability to test your battery system which is a really nice feature. The interface is easy to understand and navigate as well as getting to the task you want to complete. It is well worth the price and highly recommended to others.
October 19, 2024Reply -
Rosa
This saved me a trip to AutoZone. It works fine reading engine codes, the only thing is it doesn't print out the recorded code.
October 18, 2024Reply -
Lindsay
When the dealer said there was nothing wrong with the vehicle but the check engine light was still on, it made me invest in this reader. It cleared the code in less than 5 minutes.
October 17, 2024Reply -
Maiden
Fast shipping and in perfect working order. A must have today.
October 17, 2024Reply -
Landry
The engkne light was immediately shown to be just a minor sensor error, which eventually disappeared on its own. A small price to pay to avoid/delay huge potential costs worth every penny!
October 17, 2024Reply -
Eileen
As others have said, even without mechanical knowledge, you can google the code results and have a starting point.
October 15, 2024Reply -
Majestic
Good product. Just as advertised and does everything it promises.
October 14, 2024Reply -
Jemima
Great product, I'm very happy.
October 14, 2024Reply -
Kathy
This handy little scanner will read codes and allow you to reset them. It also has live view for certain things.
October 13, 2024Reply -
Nadine
So far I've only tried it on a Toyota. But it reads codes quickly, resets easily… basic and cheap… but works great if you don't need the numerous modules ABS, TPMS, etc. and just want basic factory OBD2 messages. I like to have a cheap code reader with me in the toolbox on trips, if the check engine light comes on, just to see how critical the item is and if I can keep driving if it's a small evaporative leak or catalytic converter efficiency etc. or if I have a real problem with the fuel delivery or ignition components. It works great for this.
October 13, 2024Reply -
Nessia
This scanner worked well and was easy to use. I especially like the battery testing options. I have 2 vehicles with batteries that are nearing their usual lifespan, so it's nice to be able to keep track of when they'll need to be replaced. Having the built in code lookup is also very helpful.
October 12, 2024Reply -
Grey
This product is perfect for anyone who wants to work on their cars instead of taking them to a shop. It pays for itself after the first use as it costs less than what many shops charge to provide you with the same information you can get on your own. Easy to use, affordable and highly recommended.
October 12, 2024Reply -
Timothy
There is nothing I don't like about this product. Ready to use right out of the package. It tells you the code and description of the problem. I really like the ability to test the battery! Great product!
October 12, 2024Reply -
Estelle
I love how it does what you want and need it to do. It tells you what is wrong, clears fault codes, and you don't need any app to tell you what is wrong with your vehicle.
October 12, 2024Reply -
Alda
It has a battery status monitoring feature. Very useful! Plus, it has all the features that a 20 scanner has.
October 11, 2024Reply -
Ingrid
I finally broke down and bought this product. I'm tired of paying the mechanic to figure out what's wrong with my vehicle. The check engine light is on, I plug it in and it tells me what's wrong. If you're handy, you can fix it yourself.
October 11, 2024Reply -
Champion
It arrived when stated and works well.
October 11, 2024Reply -
Violet
I plugged it in and it reads codes pretty easily.
October 10, 2024Reply -
Bonnie
Works on my Ford and Toyota truck with no issues, easy and ready to use, just plug and play.
October 9, 2024Reply -
Darcy
Very good for the price. Does what it is supposed to do. Reads and clears trouble codes.
October 9, 2024Reply -
Royal
It works very well, especially considering the price.
October 9, 2024Reply -
April
Diagnostic Trouble Codes. Very useful.
October 8, 2024Reply -
Ethen
It works according to technical specifications.
October 7, 2024Reply -
Rex
The only change I would make would be to make the cable detachable, but that's a minor complaint. It's a nice unit.
October 7, 2024Reply -
Just
Works as it should for the price.
October 7, 2024Reply -
Janet
It works well, but it can be a little confusing if you don't know what some of the readings mean.
October 7, 2024Reply -
Sabrina
The scanner is amazing. Now I can take my car to the mechanic and determine what is wrong with it with the help of the scanner. Before I bought this scanner, I had no idea what was wrong with my car until I bought this scanner.
October 6, 2024Reply -
Lombard
Many times we settle for what the mechanic tells us when he checks the car and we don't doubt the diagnosis, but with one of these we can confirm whether or not he is right. I definitely recommend buying them.
October 6, 2024Reply -
Godfrey
This unit is easy to use and has a bright display that can also be adjusted. The instruction manual has a QR code link to a video which is also helpful when using the unit for the first time. I also liked the battery test feature on this device. The vehicle I connected it to did not display any codes so I have no information on how to set or clear a code but I don't expect any issues doing so. The only thing I would suggest would be a longer connection cable. This would be helpful but not a huge deal. Overall, it seems to be a pretty useful diagnostic tool.
October 5, 2024