Multiplexing and CAN (Controller Area Network)

What is Multiplexing?
A Network
Instead of 1 ECU controlling everything, this system work by having lots of modules (Each module on the network is called a “Node”) all digital communication between modules is connected by a few wires, Modules are connected together in either series or parallel circuits.Signals from sensors and actuators are now manage by modules in different areas but still communicates with the main modules with high1, low1, +12v and ground.This system saves complications with a huge amoung of wires (If 2 wires are found twisted together DO NOT untwist them they are twisted together to cancel out EMI electro magnetic field interference).



Advantages of Multiplexing Network
-Many modules can share information with less wires
-Saves money (to share VSS info with different modules,
would require more wires for each module)
-Provides more features on vehicles
-Saves weight
-Less wires and connections to go bad.
-Easier to trace/replace wire.