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Harley DTC

By CommandSoft, Inc.

This app is only available on the App Store for iOS devices.


This application was developed for iOS devices running version 4.2 or newer and functions with any iOS device.

This application is designed for Harley Davidson owners to lookup Diagnostic Trouble Codes (DTCs) that are reported by the engine and read about what they mean and possible causes and resolutions.

Here is how it works. You run Harley DTC and enter the DTC code you wish to lookup. The application finds the closest match and brings up a list of all codes. From there you can enter a detail screen showing the code and useful definitions. You also can then read the documentation from the main page to read more about the codes, possible causes and resolutions.

•Easy to use simple DTC code lookup.
•Complete DTC code list with detail views.
•Startup engine sound that can be disabled in settings.
•Documentation table of contents covering Basics, Resolving Problems, Speedometer Self Diagnostics, Harley Davidson Definitions, Speedometer BUS Er, Engine Won’t Start, Crank Position Sensor, and Ignition Coil.

What's New in Version 1.1.0

We have doubled the DTC codes. These were all available as of January 2012.


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Customer Reviews

Harley DTC codes

I purchased the app just today at the suggestion of my local Harley dealer. I found all the codes I needed to diagnose the electrical problem on my 2011 Heritage Softail. My only complaint is the description was not through. The app noted "low battery voltage" but I had to go online to get a complete description of my problem. The app points you in the right direction but from the information it appears someone went on coffee break and forgot to complete the data when they returned. This app has the potential to really be an asset to Harley riders. Hoping an update will correct the deficiencies.


I've checked codes from 2005 FLSTN to 2009 XR1200. Though it doesn't explain everything like what the module abbreviations stand for. When switching from landscape it doesn't format or scroll. Keep it in portrait and tiny writing is about it. But it was only .99 and can get codes and clear friends bikes, so get it.


Must not be supported anymore, because there’s no iOS 11 update and it will not work anymore. I will leave it on my phone for few more weeks to see if they update the app. If not, I’ll just remove it and look up codes individually on the Internet.

Harley DTC
View in iTunes
This app is designed for both iPhone and iPad
  • $1.99
  • Category: Reference
  • Updated:
  • Version: 1.1.0
  • Size: 3.6 MB
  • Languages: English, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish
  • Seller:

Compatibility: Requires iOS 4.2 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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