Communication with the instrument cluster
â–¶ How to fix
Check the yellow CAN bus cables and connectors. See whether the instrument cluster set any fault codes.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Communication between the tachograph and the instrument cluster has been broken.
Possible cause
Short circuit or open circuit in the yellow CAN bus. The fault code is set also where the instrument cluster is disconnected at the same time as the power is switched on.