• OUR GUARANTEE - We promise our OBDII reader to work on ALL vehicles purchased in the USA model year 1996 or newer! Unlike so many other cheaper OBD II readers that say they will work on vehicles using J1850 or CAN protocols, but don't, ours WILL work on these & we PROMISE that! Whether your vehicle is gas, diesel or hybrid, new or old, our OBD reader will work with it. Many people buy cheap first but always end up buying ours, because ours works!
  • WARRANTY - 2 YEAR WARRANTY (YES, 2!) - Covers manufacturing defects from date of purchase. A simple & hassle-free warranty process with USA based support will leave your mind at ease so you can focus on your cars maintenance and health!
  • MONITOR & ANALYZER - The BAFX Products OBD Scanner is a must have tool for your car. With it you can read & clear your Check Engine Light (CEL) & check your vehicle monitors such as O2 Sensors, Fuel Trim, Air Fuel Ratio, DPF Temp, Coolant Temp, Oil Temp, Fuel Pressure & so much more! Professional level diagnostics at a truly reasonable price.
  • APPS & CAR BRANDS - You will need to use a 3rd party app with our scan tool. There are many apps available ranging in price from $0-$40 such as: Torque, Dash Command, Carista, Scan Master, Piston & more! Contact BAFX for a complete list. Regardless of your brand of vehicle our OBD reader will work! Chevy, Ford, BMW, Lexus, Toyota, Nissan, Subaru, Honda, Mercedes, GM, Dodge, Chrysler, Jeep & more, all covered!
  • IMPORTANT - You must have an Android or Windows based device to use our Bluetooth OBD2 reader. Our OBD reader CANNOT be used with iOS devices such as iPhones and the like. For iPhones & iPads, please look at our WiFi version! Also, this device will NOT read AirBag, ABS, TPMS or Oil Change lights. Our diagnostics tool will only read codes for the Check Engine Light.

This device works exactly as it should and for a great price. I downloaded the app they suggested from Google Play but ended up with another app that is free and has no ads called Piston. Piston is digital rather than graphic which I prefer and tells you all you need to know. There are much more expensive devices out there that don't provide anymore information. This device does not do a couple things (ABS/SRS) that you would have to pay several hundred dollars to get in another device. For that rare or unlikely need you can have it done by a pro, or perhaps Autozone has the capability with their scanners and they do it for free. The thing that is really nice about this device is that it can be used at your own home or on the road if needed in a breakdown. And it can help you keep the mechanics honest. You can download the complete list that explains the error codes and save to a file for offline viewing on your smart device. Or you can get an app like OBD2 Code Guide and search for the error code. It gives you possible causes as well. I do not know how often the database is updated.

I know I had car issues but not to this extent. I was able to track down every issue (7) and figure out what it was gonna cost me. Literally saved me $700 from what the shop was gonna charge me to fix them. Makes me wonder if they were trying to rip me off

I originally bought this adapter 5 years ago and it had worked great up until recently when it wouldn't connect to my wife's car. However, it would connect to my car just fine. I sent an email to bafx asking them if there had been any updates to the adapter since the one i originally bought. About a day later Mark from bafx wrote me back and said there were no updates to the device. He had me do some tests and then offered to check my adapter if i sent it to them. I sent it to them and a few days later they sent me a brand new one. I was not expecting this kind of support from them for a device that was 4+ years out of warranty. Sorry for the long review, i just thought i should share my experience. The new adapter works perfect.

I have a 2008 RAV4 that has an intermittent problem that causes three dashboard lights to come on: EngineCheck, VSC, and 4WD. The lights sometimes go out in a week or two. Both the BAFX 34t5 OBD scan tool and the Toyota dealer found a P0171 code, 'Engine Too Lean'. The dealer could not identify a cause for the code and could not explain what this code has to do with the VSC and 4WD lights. There does not seem to be problem with the vehicle, but when the dashboard lights are on I cannot lock the differential. I rarely need to lock it, but when I need to, it's important. I downloaded the Torque Lite app to my Samsung Android phone. The app paired automatically with the scan tool via bluetooth and I can then use Torque to turn the dashboard lights off whenever they come on. Great product. BAFX Products 34t5 Bluetooth OBDII Scan Tool for Android Devices

I've been a professional in the automotive business for almost 20 years and have ASE L1 advanced diagnostic specialist certification. I can say that this is the best bang for the buck OBDII device I have ever seen. Naturally it won't do a lot of things that the more expensive equipment I use ($20k+) can do, but for quick checks and watching limited lists of live data it's very useful. I use the Piston app for Android, and this works extremely well with it - quick live data refresh rate, and good access to codes and freeze frame data. With other apps, I use it to monitor fuel economy in real time in my own vehicle. Nice job, BAFX. I wish everything worked this well for the money.

I hadn't used this since 2013; at which time my phone was the issue. Hooked it up to my Nexus 6P with Android 'O' (I am developer), synced and was immediately able verify that my sensors were indeed "ready," which if I had done this before I went to the Oregon Emission Station, I would have avoided having to come back since I was not aware if you have a discharged car battery it wipes out all previous sensing data, which had to accumulate again over period of time the car is running, which I guess 40 minutes was not long enough. :( App used in the screenshot is 'Torque Pro'

Get this with the Torque app and you will be amazed at all the data and information that you can get about your vehicle. This will help you identify a problem before it becomes a real problem down the road. I have tried it in a 2006 Toyota Tacoma, 2003 Jeep wrangler Tj, and a 2006 Ford F-250 diesel 6.0. All three worked great. The ford has a turbo leak and it was making the check engine light turn on so I used this and the app to clear the code that it was throwing out so that it didn't just constantly stay on. I was also able to look at what the boost was using this and the app. This is by far one of the best items I have ever bought and would recommend it to anyone. 2 of my friends are already buying it. Even if you don't want this for a vehicle you have now I would get it for the next time you want to buy a vehicle to see if there are any problems that you might run into.

Works as advertised. It gives my 1999 F150 several gauges I wanted for towing. Specifically, I now have cylinder head temperature, coolant temperature, transmission temperature (at two different locations), and torque converter slip. These are the critical gauges for towing a load close to the manufacturer's max tow limit. So far, can't get engine oil temperature -- will keep trying. It does not run the battery down in any noticeable way when the truck is left sitting for a week with the Scan Tool installed. The scan tool seems to go to sleep after a while and only reawakens when the truck is started. Works well with the Android program "Torque"

Absolutely excellent device. It has already saved me over $1,000. I had a repair shop telling me I needed a new transmission. I bought this scan tool, downloaded a free app (there are many), and saw that the only significant transmission code was a faulty turbine speed sensor. I replaced the sensor myself for $25 and the transmission behaves like new. I've had other bluetooth OBDII scan tools, and this is the only one that actually works. And the company stands behind it completely. I am impressed not only with the device, but also with the company, whose owner contacted me directly just to see if I was satisfied. I am.

I got this to diagnose a P0420 code that my car had been throwing intermittently for about 6 months. I had it scanned at an auto parts store and got the initial code, but to get a definite diagnosis I would have had to take it to the shop for $45 an hour (I get a discount). I did some looking around for a scan tool, but I did some YouTubing and found these things that did all the same things for a fraction of the cost. I researched for a few weeks to find a good one, and this came up as one of the better low-cost ones and BAFX seemed like a good company so I got it. The tool came in a plain white box with packing peanuts, a setup and troubleshooting guide, and a tiny compact disc that I suppose goes in a CD-ROM drive (never tried it). The instructions were pretty good for getting a basic idea of initial setup. No issues with them at all. You need an Android smartphone or tablet to run the tool, and any smartphone or tablet will be fine (even older ones). Basically you plug it into the car's DLC port (under the dash), wait until the red light comes on, turn on your Bluetooth, and search for the device. It should come up as some weird name or OBD scanner. To connect you put in the password 1,2,3,4 and that's it. Simple. You need an app (this only works on Android, no iOS!) for this to work. They recommended Torque Pro, so that's what I got for $4.99 (well worth it, the lite version is pretty much useless). There's other apps this works with, but Torque is the best. Once the app is running, it go into settings and configure the adapter. It will connect and start transmitting info from the vehicle's computer. This thing is amazing for costing under $30. It reads every single PID from the vehicle computer, so every sensor that the computer monitors will be read. Now this is only an OBD II (for 1996 and newer cars only) reader, so it reads generic and vehicle-specific emissions and power train data. It won't read chassis and SRS codes for ABS and airbags. You need a higher-end dedicated tool for that. For my Subaru, it read all the engine sensors except oil pressure and DC voltage. It reads codes too, and you can clear them as well. The sensor data refresh was pretty quick. I didn't have any connection issues with this since I had it. My car's head gaskets are leaking, so I use it to keep tabs on the coolant temps. If you have a P0420 code, you can monitor the oxygen sensor data to see if your catalytic converters are bad. Use it to diagnose a P0430 for a bad o2 sensor heater. This tool will pay for itself 4 times over the first time you use it to do a repair yourself over paying a shop or dealership. It's invaluable to the DIY mechanic like myself. Pros Inexpensive Quick sensor refresh High quality 1 year warranty Reads and clears codes Reads live data Reliable connections Cons Only reads OBD sensors and codes No support for SRS/ABS/or chassis codes No support for iOS This is a great tool to have in your toolbox or glove box. Good for a DIY or a professional. I love it. It does everything it says it will for a fraction of the cost of a dedicated scan tool. Yes, you have to have a tablet or smartphone to use it, so if you don't then there's an argument for getting a handheld scanner, but for those who have a tablet or smartphone, this is a great tool.