Commercial truck and engine diagnostic trouble code solutions

Mobile Apps

Download the app for free!

Download the official Truck Fault Codes app from the App Store or on Google Play to search fault codes and view descriptions for free. 

Set up a Custom profile

If you don’t already have an account, signing up is easy. Just click the “Create Account” button and in a few short steps you’ll be on your way. You can even upload your own avatar.


Step one

Tap the little yellow pencil next to the placeholder image.

Step Two

Choose which method you’d like to use to add your profile photo.

Step Three

Choose your photo and click save. You’ve now got a fancy new avatar.

Access Search History

This time-saving feature will allow you to quickly access all of your past searches, right from within your user account page. This will especially come in handy for any time you need to access information without having a code handy.

To access the search history feature, just follow these quick and easy steps.

  1. Click on the history button in the upper right hand corner of your profile screen. It is next to your profile picture (avatar.)
  2. You will get a complete list of everything you’ve searched for (in the example, 8 searches are shown at the top middle.)
  3. Click on your desired fault code and get the repair information you need.

Become a part of the community

Leave comments and informative feedback as you come across issues within the app.

See a description with the information needed?

Great, let other users know.

See something that isn’t working properly?

Then please leave a comment, alerting Truck Fault Codes to the issue and we’ll work to resolve it.

Feel free to engage in the community and let other customers know your experience. This will lead to a better user experience for everyone. Leaving comments is easy. Just click the “add comment” button, write your comment and submit.