Powertrain Control Software: Multiplexing
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Multiplexing is the process of communicating several messages over the same signal path. This process allows multiple modules to communicate with each other through the signal path controller area network (CAN and CAN2). Modules communicate with the powertrain control module (PCM) using CAN communications, to determine the priority in which the signals are sent. For additional information, refer to CONTROLLER AREA NETWORK (CAN) .