Time
Try updating the time setting for the graph chart holder: Ensure that the vehicle is stationary Turn the starter key to drive position. Remove any graph charts Close the graph chart cover Open the cover and reinsert a graph chart If the fault code remains active, the tachograph must be renewed.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
There is a difference of more than two minutes between the set time in the tachograph display and the time on the graph holder clock .
The power supply to the tachograph has been interrupted for a total period of time that is longer than two minutes. Shorter interruptions are accumulated and stored in the memory until the time in total reaches two minutes, when the fault code is set.Note that the fault code is set only after a power supply interruption, not where the cause of the time shift is an internal mechanical fault.