8
Overview of possible events
Messages
© Continental Automotive GmbH
99
■ Overview of possible events
Message
Possible causes
Measure
! Security
breach
Error in the data memory; data security in the DTCO 4.0 is
no longer ensured.
The data from the sensor are no longer reliable.
The DTCO 4.0 housing was opened without authorization.
Confirm message.
!1 security
breach
The card lock is disturbed or defective.
The DTCO 4.0 no longer detects a tachograph card that
was previously inserted correctly.
The identity or authenticity of the tachograph card is not
proper or the data recorded on the tachograph card is not
reliable.
Confirm message.
If the DTCO 4.0 detects security
breaches which no longer guarantee the
correctness of the data on the tacho-
graph card, the tachograph card is auto-
matically ejected – even while driving.
Reinsert tachograph card or get it
checked.
! voltage in-
terruption
The voltage was disconnected or the supply voltage of the
DTCO 4.0/ sensor was too low or too high. This message
can also be displayed when the engine is started.
Confirm message.
! sensor mal-
function
The communication with the sensor is interrupted.
This message will also be displayed after a voltage inter-
ruption.
Confirm message.
! Movement
conflict
Contradiction in the evaluation of the vehicle movement
between sensor and an independent signal source. The
function (ferry/train) might not have been set during the
shipping process.
Confirm message.
Consult an authorised specialist work-
shop.
! GNSS missing
No position data over three hours cumulative driving time.
Confirm message.
Service Only!