Communication with the tachograph
â–¶ How to fix
Trouble shoot via the tachograph.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The coordinator has received an incorrect speed signal from the tachograph via CAN bus.
Possible cause
The fault code has been generated because a primary fault code has been generated in another control unit.