Fig. 2: Locating Multiplex Integrated Control System Components (2 Of 2)
SYSTEM DESCRIPTIONS
BODY CONTROLLER AREA NETWORK (B-CAN) & FAST CONTROLLER AREA NETWORK (F-
CAN):
Fast Controller Area Network (F-CAN) and Body Controller Area Network (B-CAN) share information
between multiple Electronic Control Units (ECUs). B-CAN communication moves at a slower speed for
convenience related items, and for other functions. F-Can information moves at a faster speed for "real time"
functions such as fuel and emissions data. To allow both systems to share information, the Gauge Control
Module translates information from B-CAN to F-CAN and from F-CAN to B-CAN.
The ECUs on the B-CAN and F-CAN transmit and receive information in the form of structured messages that
may be received by several different ECUs on the network at one time. These message are transmitted and
received across a communication circuit that consists of a single wire that is shared by all the ECUs on the
circuit. Since messages on the F-CAN network are typically of higher importance, a second wire is used for
communication circuit integrity monitoring. A backup circuit is also added to the headlight and wiper circuits
2004 Acura TSX
2004 ACCESSORIES & EQUIPMENT Multiplex Integrated Control System - TSX