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  ).