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Troubleshoot a problem

Use symptom-based guidance, confirm support boundaries, and collect the right information before contacting Cummins.

Before troubleshooting

Confirm registration and sign-in, subscription access, a supported datalink adapter, and the applicable engine or controller connection. Internet access may be required for online fault information, server lookups, or calibration downloads.

Find a troubleshooting topic

DTK will not install

Check requirements and permissions.

I cannot sign in

Check region, account, and credentials.

My adapter is not detected

Check power, pairing, drivers, and range.

DTK will not connect

Check the adapter and equipment path.

A calibration will not download

Check connectivity and calibration eligibility.

Data is missing or incorrect

Check Intake, server data, and stored files.

Non-Supported Engine Programs

Verify engine, ECM, and platform compatibility.

What information should I send to support?

Prepare useful diagnostic evidence.

Contact Cummins

Open the support channel.