Mariner 4WD L4-2.5L (2010)
Information Bus: Description and Operation
Communications Network
Multiplexing is a method of sending 2 or more signals simultaneously over a single circuit. Multiplexing is used to allow 2 or more electronic modules
(nodes) to communicate simultaneously over a twisted-wire pair [data (+) and data (-)] network. The information or messages that can be communicated
on these wires consists of commands, status or data. The advantage of using multiplexing is to reduce the weight of the vehicle by reducing the number
of redundant components and electrical wiring.
The vehicle has 2 module communication networks which are connected to the Data Link Connector (DLC), located under the instrument panel:
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High Speed Controller Area Network (HS-CAN)
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Medium Speed Controller Area Network (MS-CAN)
Network Topology
Network Termination
The Controller Area Network (CAN) uses network termination to improve communication reliability. Termination modules are located at both ends of
the network. As network messages are broadcast in the form of voltage signals, the network voltage signals are stabilized by the termination resistors.
