70
Displays and data
Messages, warnings and malfunctions
/ Driving
can't open slot
Message VU An attempt was made to open
the slot while the vehicle was
in motion.
왘 Stop the vehicle. The driver card
slot can be opened only when the
vehicle is stationary.
! Driving w/o
valid card
Warning Card The vehicle has pulled away
even though there is no driver
card in slot 1.
왘 Stop the vehicle at the earliest op-
portunity and insert a valid driver
card.
fn Function
not possible
Message VU The desired function cannot
be carried out.
- - -
! Hardware
sabotage
Mal-
function
VU Unpermitted modifications
have been carried out on the
VU.
왘 Visit a specialist workshop for
tachographs to have the equip-
ment checked.
! Insertion of
a non valid card
Warning Card Driver card is:
앫 non valid
앫 expired
앫 defective or dirty
or in other means incorrect.
왘 Eject card and check visually.
왘 Clean with a soft damp cloth and
try again.
왘 Insert a valid driver card.
왘 If the display still is shown, per-
form a self test (컄 page 83).
! Int. data
transfer error
Mal-
function
VU There was an error in the
transfer of internal data to the
VU.
왘 Visit a specialist workshop for
tachographs to have the equip-
ment checked.
Display Type Unit Description Action
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