Asked by Julissa Martinez on Jun 26, 2024
Verified
Which of the controllers is 'in charge' of managing data on a truck J1939 data bus?
A) bus topology ensures that no individual controller has this role
B) engine management ECM
C) chassis management ECU
D) instrument cluster module (ICU)
Bus Topology
In multiplexing, it means that no single controller networked to the data bus has more priority than another; in other words, no ECM/ECU is in charge.
Data Bus
A communication system within a computer or electronic device used for transmitting data between components.
Engine Management ECM
Engine Management Electronic Control Module, a central part of the engine management system that processes information from engine sensors to adjust fuel delivery, ignition timing, and other engine parameters for optimum performance and emissions.
- Acquire knowledge about the primary parts and roles of a truck data bus.
Verified Answer
AB
Alyndsia BrodieJun 28, 2024
Final Answer :
A
Explanation :
In a J1939 data bus system, the bus topology is designed in such a way that no single controller is 'in charge' of managing data. Instead, all controllers communicate over a shared network, allowing for decentralized control and data sharing among multiple systems.
Learning Objectives
- Acquire knowledge about the primary parts and roles of a truck data bus.