Principles of Operation: Notes

The High Speed Controller Area Network (HS-CAN)  operates at a maximum data transfer speed of 500 Kbps and is designed for real time powertrain information transfer and control. Modules on the HS-CA  communicate using bussed messages. The HS-CAN  uses an unshielded twisted pair cable, data bus (+) and data bus (-) circuits. In addition to scan tool communication, the HS-CAN  allows sharing of information between all modules on the network.

The Medium Speed Controller Area Network (MS-CAN) operates at a maximum data transfer speed of 125 Kbps for bus messages and is designed for general information transfer. Modules on the MS-CAN  communicate using bussed messages. The MS-CAN  uses an unshielded twisted pair cable, data bus (+) and data bus (-) circuits. In addition to scan tool communication, the MS-CAN  allows sharing of information between all modules on the network.

The Infotainment Controller Area Network (I-CAN) operates at a maximum data transfer speed of 500 Kbps and is designed for real time audio and multimedia information transfer and control. Modules on the I-CAN  communicate using bussed messages. The I-CAN  uses an unshielded twisted pair cable, data bus (+) and data bus (-) circuits. The I-CAN  allows sharing of information between all modules on the network. The I-CAN  is connected to the Data Link Connector (DLC), but the I-CAN  modules communicate with the scan tool over the HS-CAN  . The Instrument Panel Cluster (IPC) is used as a gateway module for the messages to transfer between the scan tool and the modules on the I-CAN  .