Gateway Function

The BCM acts as a gateway module by receiving information in one format and transmitting it to other modules using another format. For example, the BCM receives the vehicle speed data from the PCM over the, HS-CAN the BCM converts the data into a MS-CAN message and sends (gateways) the message to other network modules such as the HVAC module. This enables network communication between modules that do not communicate using the same network (HS-CAN or MS-CAN).