OTR Diagnostics June & July 2025 App Updates

More Power. More Engines. More Control.

We’ve been rolling out powerful new features and enhancements throughout June and July to give you an even better diagnostics experience, no matter what engine you’re running. With continuous improvements to both our iOS and Android apps, OTR Diagnostics is even more equipped to help keep your truck on the road and out of the shop. Let’s break it down by engine type so you can see what’s new for your truck.

Detroit Diesel: Expanded Coverage from 2011–2024

If you're running a Detroit Diesel engine, these updates are designed to give you even more confidence on the road:

iOS Updates:

• v3.0.9: Now supports SCR Efficiency Regen for 2011–2016 EPA10 / GHG14 engines.

• v3.0.15: Enhanced regen capabilities for 2021+ Detroit Diesel models for smoother aftertreatment performance.

Android Updates:

• v3.0.8:

• Streamlined DPF regen process on 2021+ engines.

• Easier access to fault code history and updates to the in-app support experience.

Cummins: New Commands & Smoother Connectivity

We’ve made it easier than ever to get connected and stay in control with your Cummins-powered truck.

Android Updates:

• v3.0.6 – v3.0.8:

• Faster and more accurate engine detection.

• All-new SCR Performance Test command.

• Consistent connection and command availability when using BL Mini or BL2 adapters.

• Refined user interface for a more seamless experience.

Paccar MX: Better Detection + Enhanced Code Support

From enhanced regen performance to expanded code detection, these updates are built to give Paccar MX engine owners more insight and flexibility.

iOS Updates:

• v3.0.10 – v3.0.15:

• More precise engine detection.

• Broader support for OEM P-Codes, especially on EPA2021+ models.

• Upgraded regen logic for smoother in-app commands.

Android Updates:

• v3.0.8: OEM P-Code support is now available on supported Paccar and Volvo engines.

Volvo & Mack: Enhanced Live Data + Fault Reset Performance

Volvo and Mack users saw improvements that make everyday maintenance easier and more reliable on both iOS and Android.

iOS Updates:

v3.0.9 – v3.0.13:

• More responsive fault code reset.

• Enhanced regen performance.

• Upgraded live data parameters for better visibility.

• Smarter engine detection across all supported model years.

Android Updates:

v3.0.6 – v3.0.8:

• Improved interaction with Volvo engines.

• Refined interface and command layout for easier navigation.

• Greater compatibility with OEM P-Codes.

Platform-Wide Enhancements: Supporting You Even Better

Across both platforms, we’ve made updates that enhance your everyday experience with the OTR Diagnostics app:

iOS General Updates:

New support model for faster response times and easier troubleshooting.

• Updated FAQ links directly within the app.

• Improved experience when accessing and importing diagnostic history.

Android General Updates:

Enhanced navigation and user flow.

• More intuitive fault code organization.

• Polished in-app support experience for faster resolutions.

Why It Matters

These updates are all about putting more power in your hands more accurate diagnostics, more control over regen processes, and more confidence on every haul.

💡 If you haven’t updated your app yet, now’s the time.

Download the Latest Version of OTR Diagnostics →

Stay safe. Stay ahead. Stay in control with OTR Diagnostics.