RDX AWD L4-2.3L Turbo (2010)
Information Bus: Description and Operation
Multiplex Integrated Control System Description
Body Controller Area Network (B-CAN) and Fast Controller Area Network (F-CAN)
The body controller area network (B-CAN) and the fast controller area network (F-CAN) share information between multiple electronic control units
(ECUs). B-CAN communication moves at a slower speed (33.33 kbps) for convenience related items and for other functions. F-CAN information moves
at a faster speed (500 kbps) for "real time" functions such as fuel and emissions data. To allow both systems to share information, the gauge control
module translates and relays the information from B-CAN to F-CAN and from F-CAN to B-CAN. This is called the Gate Way Function.
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The single wire method is used between the units not requiring the communication to move at a fast speed.
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Using a single wire method reduces the number of the wires used on the body controller area network.
Gateway Function
The gauge control module acts as a gateway to allow both systems to share information. The gauge control module translates and relays information from
B-CAN to F-CAN and from F-CAN to B-CAN.
