No communication between tacho and oil sensor on 04 iveco eurocargo what does this mean?

No communication between the tachograph (tacho) and the oil sensor on a 2004 Iveco Eurocargo likely indicates a fault in the wiring or connector between the two components, or a malfunction of one or both devices. This could lead to inaccurate readings of vehicle speed and oil pressure, potentially affecting engine performance and safety. It is advisable to check the wiring harness for damage and ensure all connections are secure, and if necessary, test or replace the faulty components.