Power supply to the road speed sensor.
â–¶ How to fix
Check cable harness and connectors for open circuits.Check the road speed sensor.Check the tachograph.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The power supply to the road speed sensor has been lost.
Possible cause
Open circuit in cable harness for the road speed sensor voltage supply.Internal fault in the road speed sensor.Fault in the tachograph.