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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Communication - Non-DTC Based Diagnostics >> Diagnosis And Testing >> Checking Automotive ETHERNET Using MOPAR Scope >> Theory Of Operation >> Characteristics Of Automotive ETHERNET

Characteristics Of Automotive ETHERNET

The Automotive Ethernet network is being used for communications between critical time sensitive and video related ECUs. Only two ECUs are ever connected to a Automotive Ethernet network. The Automotive Ethernet network use a twisted pair of insulated copper wires for the data bus. One wire is designated as Ethernet (+), the other is Ethernet (-). Connectors house the network circuit terminals in adjacent cavities and connect them to a module. The connectors also connect certain branches of wiring in-line along the wiring harness. A gateway module is used to link A.E. to other communication networks. A.E. messaging from multiple ECUs can be mirrored/reflected using an ethernet switch, that are internal to the Security GateWay (SGW) Module and Radio at the Diagnostic Port/Data Link Connector (DLC). The internal ethernet switch joins multiple physical connections and can independently forward messages from one A.E. network to another A.E. network.