F 150 2WD V8-4.6L VIN W (2007)
Information Bus: Description and Operation
COMMUNICATIONS NETWORK
Vehicle communication utilizes a high speed controller area network (HS-CAN), International Standards Organization (ISO) 9141 network and universal
asynchronous receiver-transmitter (UART)-based protocol (UBP) network. Information is sent to and from individual control modules that each control
specific functions. All 3 networks are connected to the data link connector (DLC). The DLC can be found under the instrument panel between the
steering column and the audio unit.
The 3 module communication networks are:
-
High speed (HS) CAN
-
ISO 9141
-
UBP
ISO 9141 is for diagnostic use only while UBP and CAN allow multiple modules to communicate, or transfer data, with each other on a common
network.
Network Topology (Part 1)
Network Topology (Part 2)