TRScope of Service
Communication between control units is an important part of fault diagnosis in modern heavy-duty vehicles. We assess data obtained from CAN Bus and J1939 networks alongside diagnostic findings and electrical checks.
We evaluate bus integrity, data traffic, communication faults and related wiring findings. Our aim is to help identify common causes behind faults appearing in multiple systems.
Key Areas of Assessment
- Diagnostic analysis of CAN Bus and SAE J1939 communication.
- Communication problems between electronic control units (ECUs).
- Assessment of communication bus and wiring findings.
- Incorporating live data and oscilloscope measurements into the analysis.
Communication analysis is planned according to the technical access available for the vehicle and its systems. A single fault code alone is not treated as conclusive evidence of the root cause.
