Multiplexing Implementation
Currently Ford Motor Company uses 2 different types of communication language protocols to communicate with the powertrain control module (PCM). These protocols are controller area network (CAN) and standard corporate protocol (SCP). The Ford GT and Ranger use the SCP protocol for PCM communication with the diagnostic tool. All other vehicles use the CAN protocol for PCM communication with the diagnostic tool.
For additional information about the module communications network, refer to the appropriate MODULE COMMUNICATIONS NETWORK article .