USB OBD2 ELM327 Adapter Cable Scanner ELM 327 OBD Code Reader OBDII Connector Car Diagnostic Tool for GM Chevy Cadillac GMC Buick Toyota Honda Lexus Mazda Hyundai Subaru

A great product

This new OBDII diagnostic tool is an excellent upgrade to my current older model. Each version is simple to use by anyone. The ability to determine why your check engine light is on and clear it, along with monitoring real-time engine performance and fuel economy, saves time, hassle, and professional repairs. The capability to find and diagnose automobile trouble codes provides valuable insights into potential issues, making it easier to resolve them before they become bigger problems.Setting the system up is as simple as plugging in the receiver under the dash of your car. Using the tool feels just like handling other USB devices on your computer. It works seamlessly with my Windows laptop and supports a wide range of vehicles, from hybrid to diesel models. Whether I am preparing for an emissions test or just keeping my car running smoothly, this OBDII diagnostic tool is a reliable and effective solution for automotive troubleshooting and repair.Thanks, AMAZON!Mark in North Carolina

The software images from the manual and from the links to download appear to be from the late 1990s to mid 2000s. My laptop initially prevented the software from auto downloading. I did it anyway, even though it wasn't recommended. I installed the drivers for the device, then had second thoughts. The freeware too appeared to come from sources that were less than authentic. I noticed too there were apps on the playstore that may interface with the unit, but only one of them seemed to support it. That app however, would just do a little circular animation commenting about my phone's operating system. The unit appeared to have a good build quality and a long enough cord, but ultimately, I ended up not compromising my computer/phone with the questionable software. I would recommend getting an OBD scanner that has a screen and its own software instead.

I have a number of handheld OBDII readers and Bluetooth dongles, and wanted a wired OBDII adapter for my laptop.The driver download given in the instructions worked fine on my Dell Windows 11 laptop. I installed three free OBD monitoring tools to test with (RomRaider, OBD Auto Doctor, and EOBD-Facile). I had no trouble connecting with OBD Auto Doctor and EOBD-Facile to my 2025 Subaru Forester with this adapter. RomRaider didn't seem to want to connect, but I am confident that is due to configuration issues that I didn't want to sit in the car and troubleshoot through, knowing it connected fine with the other two. As FYI (and not a part of this review rating) EOBD-Facile didn't seem to want to give me much functionality in trial license mode, OBD Auto Doctor gave me some live monitoring options.The only downside I ran into was cable length of the adapter. OBDII ports are typically under the steering wheel, and there wasn't enough cable length to get from the OBDII port to my laptop sitting in the passenger seat. I needed to place the laptop on the dash above the steering wheel, which is okay for idle testing, but not for any continuous monitoring during a drive. I recommend use of a USB Type A extender cable if you need more room to place your laptop.

This is just a USB to OBD interface dongle. Inside is a CH-340 serial chip, so drivers are pretty easily available and you don't have to worry about loading older drivers to make it work.The heavy lifting is all in the OBDII software you use. The instructions suggest a couple. For me, all three of my vehicles happen to be supported by FORScan, so that's what I use. The hardware is reported to be compatible with all 12-volt gasoline vehicles that have an OBD II interface (which is every single vehicle made from 1996 on, plus some 1994 and 1995 models). The manual mentions lack of compatibility for diesel and 24v vehicles. I have no experience with these, so I don't know if there is a difference in the protocol used, or if you just need to find special software.The documentation is adequate for the casual user, but doesn't explain the theory behind anything. Since this is just the hardware dongle/adapter, there's essentially zero software instructions (though the manual makes some suggestions of software that can be used).The hardware itself is great, and works well. I would highly recommend anyone that works on vehicles have something like this, but due to the lack of specific documentation, I don't think its well suited for an average car owner that relies on a mechanic for all servicing.

Even though FORScan, had a pop up window about the adapter, it was set up and worked perfectly. It has HS and MS switch which was picked up by the software and actively used during a scan of certain components. Definitely works with FORScan, so if you have Ford or other vehicle supported by the software, this OBD adapter will work well.

The MOCATEC OBD2 ELM327 Adapter Cable will not detect or connect to my vehicles electronic control unit (ECU) no matter what I do. I spent several hours over two days trying to get it to work but no luck. I installed the CH340 USB driver and the EOBD Facile software on my HP Laptop 15-dy5024nr running Windows 11. I tried it on my 2015 Honda Civic and 2015 Honda CRV with same results. It may be a problem with Windows 11; I don’t know. I wanted to get more information than I get with a standalone code reader that works fine on both cars; so they are OBD2 compatible. I tried all the steps in the connection problems troubleshooting guide. The car batteries were charged, the ignition was on, the vehicles are OBD2 compatible etc. So unless you enjoy fiddling around with your laptop’s software for days; I would try something else. Maybe try a Wi-Fi or Bluetooth version.