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You’ve probably experienced this; you hear a new disturbing noise from your engine, you then check the hold, and end up finding no fault. What do you do in this situation? Using an onboard diagnostic scan – OBD-II scan tool will provide you with an extra way to fix and find problems even if you are a professional mechanic.

When Do I Use a Diagnostic Tool?

Although a diagnostic tool isn’t a magical solution for fixing all troubles relating to your vehicle – it can’t fix a flat tire or replace a windshield. Even more, some diagnostic tool isn’t that effective; so if you need to use a diagnostic tool effectively, you need to know when and how to use it. Professionals from OBDStation.com advise you to prepare and use certain methods to diagnose your car effectively.

You can use a diagnostic tool to check your engine light, even when an engine isn’t dropping out, the light is always on, that light can read various forms of problems that can occur in the engine.

You should also record your vehicle statistics and performance: some high-end car diagnostic tools don’t just read engine codes; they have advanced tools that can take live data measurement of a car’s system to fine-tune the setup.

Things You’ll need to know about OBD-II.

In diagnosing a vehicle you don’t need to detect it on paper and even more, you can ignore a high-level mechanic skill, trial and error process that comes with fixing a car plus specialized tools used for working on a vehicle. Factoring all of these, you can use a diagnostic tool.

Here are things you need;

  • OBD-II Diagnostic Tool: this tool is used for reading onboard diagnostic codes your car generates. While problems can be detected. Some scanners are listed as “OBD2 scanner.”
  • Cars made after 1996 have the required OBD-II port, a diagnostic system that works with the diagnostic tools. If your car is older than 1966, you might need to take it to a professional; to fix it for you.


  • A diagnostic tool involves you plugging the device in and turning everything on.
  • Find your car’s OBD-Ii port. It’s usually around the steering wheel under the dashboard.
  • Check your car’s manual for details.
  • Turn your car off before plugging the automotive scan tool into the OBD-II port.


Some diagnostic tools offer features like advanced reading/statistical capabilities, most of them are plug and scan.

Use a Code Reader.

The main use of diagnostic tools is to get diagnostic trouble codes for your car record automatically, whenever a code is determined. – it’s the same process. When mechanics fix your car, but with ODB II, it’s fancier.

Try plugging The Diagnostic Tool Into The OBD-II Port

The reason for using a diagnostic scan radar or tool is to get diagnostic codes. Your vehicle records or detects a problem.

Furthermore, plug the connector into and the OBD-II port, turn on your car, you can even monitor the health of your car in real-time – you shouldn’t switch on the car if your car stores codes in the memory.

Read The Car Codes.

The key to an effective diagnostic process is the codes your vehicle rates when it finds an issue. The tool can download and read the codes, so you get an insight into what is working or not:

  • Turn on the diagnostic tool.
  • Access the diagnostic scanner.
  • Record the data.
  • Empty the codes
  • Interpret The Data.

Whenever you see trouble codes, you wonder what they mean. You’ll need a code reader to translate the trouble codes into plain words:

  • Search online for the trouble code.
  • Use specialized software.
  • Read the information straight from the diagnostic tool.

Fix The Problem

Since you’ve done some basic diagnostic information, you need to take time to fix parts. These parts depend on your mechanical skill or experience.

  • Fix the problem yourself.
  • Hire a professional mechanic.

Final Tips

If you use the internet to search for a big code, search a little deeper to also find easy fixes to problems. Use diagnostic tools to get regular updates for your car’s health. Why? Some diagnostic tools are meant to be plugged into the OBD-II port.

If you get to see a mechanic after you scan your vehicle, bring the codes along to give the mechanic an insight as to how to work on the car. Don’t reset anything, check the engine light until you have found the error trigger it will most likely come back on later.