German Translations

German	English
V-Überwachung 45 [or 85 or 25] km/h	speed monitoring, i.e. you can't go faster than the stated speed
WT nicht zeitgerecht bestätigt	you didn't pull the acknowledgement key (Wachsamkeitstaste, WT) in time
Unzulässige Befreiung	you released yourself from monitoring with "PZB free" when you weren't supposed to

Spoken messages:

German	English
Zwangsbremsung Zugbeeinflussung	emergency brake due to missed acknowledgement, excessive speed etc. (PZB)
SiFa Zwangsbremsung	emergency brake because you missed SiFa
Specific to the BR 101: Türfreigabe	reminder to release the doors

German	English
Störung, Störung - Zugbeeinflussung - WB gesperrt, WB gesperrt	malfunction, malfunction - train influencing - electric brake locked

Beleuchtung = lighting (for the passengers) - here you press the button with 1 above it to turn it on
[AFB menu] v-soll Freigabe = free target speed, i.e. none of the presets. The 5 km/h preset is useful in HMA's "Wash and Go" scenario when you go through the train wash.
[PIS menu, press UD twice] Zugeinstellungen = train settings: highlight "Zugeinstellungen" with the up and down arrows, press E, press left and right arrows until the correct destination is displayed. Go back to the default screen by pressing UD again.
Grundbild = default screen (press this to exit the lighting or the AFB menu)
On some trains when you change settings in the screen, e.g. the destination on the PIS of the 425 (PIS is FIS in German), you'll see "übernehmen", which means "apply changes".