Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers are divided on this diagnostic tool. Many praise its affordability, ease of use, and ability to read codes, clear check engine lights, and display live engine data without requiring a smartphone—helping them avoid costly repairs. However, a substantial group reports serious frustration with software updates and registration, citing serial number validation errors, broken download links, and Windows-only support that leaves other users stranded. Some note build quality feels cheap, with USB connection issues and small display text. Despite strong capabilities, unresolved software problems have led several customers to regret their purchase.
Customer review summary generated by AI, including incentivized reviews.software
I HAVE HAD THIS READER FOR A WHILE. TRIED TO UPDATE, THIS PROCESS WAS CLUNKY AND NO UPDATES ARE AVAILABLE.
From craftsman.com
Brand New and Can Not Update
Would Not RecommendJust bought this product brand new. Took it out of the box and am following download updates instructions and I am getting nothing. The product wont download the updates. HELP
From craftsman.com
Hello PFR186519. I appreciate your feedback on the OBD2 Code Reader CMMT77693 and I'm sorry to hear that the product wont download the updates. Your s...
Not Connecting to some vehicles
Would Not RecommendI have tried this on several cars. Most have worked so far. I finally got the software updater to work, but there are never any updates. I was hoping an update would fix the problem I have with it not connecting to a GMC Suburban and a Chrysler Town and County.
From craftsman.com
Hello UtahGreg, I appreciate your feedback on the CMMT77693 OBD2 Code Reader and I'm sorry to hear it is not working on some of your vehicles. Your sa...
It really comes in handy when a problem arises.
Would RecommendI already had one and it has helped me out many times. It prevented me from having to go to the dealership and pay their outrageous prices just to diagnose a problem. This Code Reader I purchased for my son. He immediately used it to diagnose a problem on one of his vehicles. Saved him a lot of money.
Verified Purchaser
Update unattainable
Would Not RecommendEverything about this tool is great except for the fact that it won't update therefore it's useless
From craftsman.com
Hello and thank you for your review. We appreciate your feedback and would like to assist you in finding a solution. We have sent you an email to the ...
Easy to use
Would Not RecommendJust plug and play
Verified Purchaser
TRASH
Would Not RecommendTrash. No way to update it. Craftsman.com has some shady software that downloads on your desktop then asks for money. So you pay and nothing happens. Just straight garbage!
From craftsman.com
Hello Skiqwerty and thank you for your feedback on the CMMT77693 OBD2 Code Reader. I'm sorry to hear you have had a negative experience with it. Som...
Great product
Would RecommendThis isn’t a $800 scan tool. But for the 10th of the price get a lot out of it. It tells you the faults codes and what can cause it. When your done with your fix you can clear them. You can look at a tons of live data and history of the engine. Anything from bank trim, coolant temperatures, engine RPM, throttle position, and much more. It can also tell you what cylinders might be misfiring and how many times. It even told me things that don’t cause a check engine light, like low coolant efficien...
Verified Purchaser
Wish could find software updates
Takes them over an hour to even bother getting back to you and can't find anywhere on the web page software updates
From craftsman.com
Hello Thank you for taking the time to provide your feedback on the OBD2 Code Reader. This is not the kind of performance we expect from our products ...
Built well but software does not work.
Got this to use for future maintenence. I checked it on my 2009 Tacoma which I know has codes for the TPMS and ABS system active and it didn't pick up on any of them. I figured the software update would fix that, however when I go to use the update tool, it says the device serial number doesn't exist, and so it doesn't update. Will return unless the software issue is fixed. TLDR: IT DOESN'T READ CODES.
From craftsman.com
Hello Thank you for taking the time to provide your feedback on the OBD2 Code Reader. This is not the kind of performance we expect from our products ...
Unable to update tool
Unable to get update on the reader. Downloaded the software but it would not allow the update. Always purchased and trusted craftsman. Unfortunately this was a huge disappointment.
From craftsman.com
Hello StretchAndSketch and thank you for taking the time to provide your feedback. I am sorry that you had a negative experience with OBD2 Code Reader...
Don't Buy
Would Not Recommendthis is junk has alot of problems in use...my cheap harbor freight one has better options and does lots more then this does ...this $69 price tag should be $19.99 because that's what it really is you are buying.....PS i took it back to the store for refund
It’s a good product to start start fixing cars.
Would RecommendIt’s easy to use and it tells you what’s wrong with your car.
Verified Purchaser
works but not well
Would Not Recommendit dose a lot that needs to be done but i bring it in to print my data and it tells me i need update go threw the update process and then it tells me to register my device it tells me i have the wrong code its the only code i can find and no matter how i type it it it will not except it
From craftsman.com
Hello, I appreciate your feedback on the Model CMMT77693 and I'm sorry to hear it's not working properly. Your satisfaction is our top priority. We wi...

Hello Valued Customer, I appreciate your feedback on the CMMT77693 OBD2 Code Reader and I'm sorry to hear you are having troubles with the update. You...