I lost connection to the equipment

Check the connection

1. Check that the datalink adapter is powered and securely connected to the diagnostic connector. Check for loose or damaged connections.
2. Confirm that DTK recognizes the selected adapter. If it is missing, follow My adapter is not detected.
3. On DTK Mobile, verify Bluetooth connectivity and keep the device within communication range.
4. Ensure another diagnostic application is not actively using the same adapter.
5. Reconnect using Connect to an engine. If communication still cannot be established, follow DTK will not connect to the equipment.

If the problem continues

Record the task being performed, exact error message, DTK version, adapter model and connection type, and equipment details. See Information for support.