Ford Fiesta Quiz
Power Distribution

Communication Network - Overview. Description and Operation

In this manual: Power Distribution
Service Information — 27Suspension — 48Transmission — 9Brake System — 52Steering — 21Engine — 140Manual Transmission, Clutch, Transfer Case and Power Transfer Unit — 48Exhaust System — 6Fuel System — 21Climate Control System — 58Instrumentation and Warning Systems — 26Battery and Charging System — 20Infotainment Systems — 41Lighting — 29Power Distribution — 11Electronic Function Group — 30Body and Paint — 275Frame and Mounting — 3
~1min read

Overview

Multiplexing is a method of sending two or more signals simultaneously over one circuit. Multiplexing allows two or more electronic modules (nodes) to communicate over a twisted pair [data (+) and data (-)]. The information or messages that can be transmitted over these wires consist of commands, status or data. The advantage of using multiplexing is a reduction in vehicle weight due to fewer backup components and less wiring.

The vehicle has 2 modular communication networks connected to the DLC, located under the instrument panel. The communication networks are:

  • High-Speed Controller Area Network (HS-CAN)
  • Medium-Speed Controller Area Network (MS-CAN)

Test yourself

A quick Ford Fiesta quiz: every answer comes with an explanation and a link to the manual page.