What does the CAN communication fault in Auman truck engine mean?
2 Answers
This fault code indicates a short circuit in the engine communication line. Turn off the power and measure the resistance to check if it is 60 ohms. Below is an introduction to the CAN communication bus in vehicles: Overview: CAN stands for Controller Area Network, developed by the German company BOSCH, renowned for its research and production of automotive electronic products. It has become an international standard (ISO11898) and is one of the most widely used field buses globally. Advantages: The high performance and reliability of CAN have been widely recognized, and it is extensively applied in industrial automation, marine, medical equipment, industrial devices, and other fields. Field bus is one of the hotspots in the development of automation technology today, often referred to as the computer local area network in the automation field. Its emergence provides strong technical support for real-time and reliable data communication among nodes in distributed control systems.
When driving an Auman truck, the engine CAN communication failure often worries me because it means the communication between the vehicle's electronic systems is interrupted, especially when there's an issue with the controller network. The engine module and other components are connected via CAN bus lines. If communication fails, the computer may not receive the correct signals, causing the engine to malfunction. Common causes include aging or broken wiring, loose connectors, or a faulty control module—for example, vibrations on bumpy roads can loosen the connections. While driving, warning lights may appear on the dashboard, engine power may fluctuate, or even gear shifting may fail, compromising safe driving. As a truck driver, I recommend immediately checking fuses and connectors instead of forcing the vehicle to operate, as engine stalling can be extremely dangerous. If the issue persists, visit a professional repair shop promptly—they can diagnose the problem by reading error codes with specialized tools. Regular maintenance of wiring is essential; don’t underestimate these electronic issues.
