E 320 Coupe (124.052) L6-3.2L (104.992) (1994)
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Controller Area Network (CAN): Description and Operation
CAN Data Bus
DATA EXCHANGE VIA SERIAL DATA BUS (CAN)
The engine control module (N3/4), electronic accelerator control module (N4/1) or cruise control/idle speed control module (N4/3), as well as the
diagnostic module (N59) in California version vehicles are linked by a serial data bus (CAN).
CAN = Controller Area Network
The control modules are networked in parallel via two wires. As a result, the need for redundant sensors as well as control module inputs/outputs
has been eliminated.
Data exchange occurs continuously in the form of information blocks. Transmissions from one control module are received by the other control
modules and vice versa. Control modules only interpret that information which is required by that particular control module. Important data is
transmitted with priority.
Data Exchange Transmitted Via CAN