Medium Speed Controller Area Network (MS-CAN)
WARNING: This page is about a different car, the 2019 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The MS-CAN operates at a maximum data transfer speed of 125 Kbps 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 GWM is used as a gateway for the messages to transfer between the scan tool and the modules on the MS-CAN.
The GWM translates the diagnostic messages from the DIAG 2 to the MS-CAN and vice versa, allowing communication between the modules on the MS-CAN and the scan tool.