How do CAN bus networks coordinate multiple subsystems in an EVT vehicle, and what happens if a node fails?

• A. They operate independently; no effect from node failure.
• B. They exchange data across controllers; a failed node can cause lost data, fault codes, or subsystem malfunctions; isolate faulty module and reinitialize.
• C. CAN bus is not used in EMS vehicles.
• D. A failed node causes entire vehicle to stop.

Answer: (B)