Vehicle communication network
Lets electronic modules exchange coordinated messages.
Distributed through vehicle wiring and connected controllers.
Different bus systems serve control and information tasks; gateways route messages between networks.
A shared conversation between the car’s computers.
Communication faults may arise from power loss, wiring damage or an unresponsive module.
Batteries and connections depend on age, charging and usage. Control units are diagnosed by faults, power and communications.
A fuse or connection differs from a coded controller. Identify the cause before replacing an expensive electronic module.
Modern BMWs can use several network technologies; CAN is one part of the architecture.
BMW low-voltage systems across combustion, hybrid and electric models; equipment varies.