Principles of Operation: Notes
WARNING: This page is about a different car, the 2005 Lincoln Navigator and 2005 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
The message center is a vacuum fluorescent display, part of the instrument cluster. The message center electronic functions use both hardwired, and controller area network (CAN) to transmit and receive information. As a technician, it is very important to understand:
- where the input (command) originates.
- all the information (messages) necessary in order for a feature to operate.
- which module(s) receive(s) the input or command message.
- if the module that received the input (message) controls the output of the feature, or if it outputs a message over the CAN to another module.
- which module controls the output of the feature.
The message center provides the following features:
- information displays
- setup display
- warning messages
- system check messages
The message center information can be selected through a set of 3 buttons:
- INFO
- SETUP
- RESET