Choosing the right OBDII scan tool can be overwhelming for a home mechanic. Do you need to invest in an expensive professional-grade tool, or will a simple dongle suffice? This guide will help you find the best OBDII scan tool to meet your needs and budget.
For personal use, a wireless dongle that connects to your smartphone via WiFi (for Apple) or Bluetooth (for Android) offers excellent value. These compact devices can be stored in the glove box and provide access to a wealth of diagnostic information. Avoid leaving expensive scan tools in your vehicle.
While some inexpensive dongles claim compatibility with all OBDII vehicles from 1996 onward, many only support CAN protocol vehicles from the mid-2000s. For broader compatibility, including older vehicles using protocols like J1850, consider the BAFX Products Bluetooth Diagnostic OBDII Reader.
Setting up the WiFi connection for these dongles is a simple, one-time process. Bluetooth versions require pairing with a code, often “0000” or “1234,” taking mere seconds.
If your vehicles all use the CAN protocol (generally mid-2000s and newer), an even more affordable option is a small, translucent blue Bluetooth dongle. These are readily available online for around $6. For faster shipping, slightly more expensive options are available.
These dongles offer functionality beyond basic OBDII fault code retrieval. They provide real-time data on various parameters, even while driving. While they typically don’t handle manufacturer-specific codes, software like FORScan can access many of these codes for Ford vehicles.
Regardless of your ultimate choice, a basic dongle is a valuable tool for any home mechanic. It provides essential diagnostic capabilities without a significant investment. Delay purchasing a more expensive scan tool until you encounter a specific need that the dongle can’t handle. Remember to download a trusted app like Torque from a reputable app store, rather than relying on the software CD often included with the dongle.
