an unspecified impact level
Cause code DOS01
Plain-language explanation, impact details and live examples.
Last updated 21 May 2026, 16:58:22Test CATO, DLO Boden
Announcement phrasing
Train operators typically phrase this cause as:
Test CATO, DLO Boden
Live trains referencing DOS01
Snapshot of services that mentioned this cause during the past 90 minutes and the next 3 hours.
Updated 21 May 2026, 16:58
We can't find any current trains referencing this cause.
Frequently asked questions about cause code DOS01
What does cause code DOS01 mean?
Test CATO, DLO Boden
How serious is cause code DOS01?
It is classified as an unspecified impact level.
Which trains are currently affected?
See the live examples above. The list refreshes every minute.