High Speed CAN Bus
Transmission control modules in the vehicle that require continuous, rapid communication are connected to the high speed CAN bus. For example, the automatic transmission is continuously notified of the current engine load status. Since the automatic transmission control module has to react immediately to load status changes, rapid communication is required between the engine control module and the automatic transmission control module. The high speed CAN bus in the AW30-40LS is designed as a two-wire CAN bus (twisted pair). The wires are shielded and twisted. The transfer rate is 500 K baud.