Principles of Operation: Notes

WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

The vehicle has 3 module communication networks which are connected to the Data Link Connector (DLC), located under the instrument panel.

Both the HS-CAN and the MS-CAN use an unshielded twisted pair cable of data (+) and data (-) circuits. The HS-CAN operates at a maximum data transfer speed of 500 Kbps and is designed for real time information transfer and control. The MS-CAN operates at a maximum data transfer speed of 125 Kbps for bus messages and is designed for general information transfer.

The I-CAN is not connected to the DLC . The I-CAN modules communicate with the scan tool over the HS-CAN . The Instrument Panel Cluster (IPC) is used as a gateway for the messages to transfer between the scan tool and the modules on the I-CAN .