Navigator 4WD V8-5.4L VIN 5 (2006)
Driver/Vehicle Information Display: Initial Inspection and Diagnostic Overview
Principles of Operation
PRINCIPLES OF OPERATION
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) circuitry to transmit and receive information. As a technician, it is very important to understand:
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where the input (command) originates.
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all the information (messages) necessary in order for a feature to operate.
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which module(s) receive(s) the input or command message.
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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.
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which module controls the output of the feature.
The message center provides the following features:
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information displays
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setup displays
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warning messages
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system check messages
The message center information can be selected through a set of 3 buttons:
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INFO
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SETUP
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RESET
Information Displays
The information displays are non-timed modes. The selected mode remains on until the driver presses a message center button to change the mode or
it is overridden by another mode. The information display modes are:
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odometer
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trip odometer
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compass
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distance to empty (DTE)
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average fuel economy
Setup Displays
The setup displays are timed modes and terminate after a finite interval. The setup display modes are:
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system check
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English/metric units
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power liftgate on/off (if equipped)
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running board auto in/out (if equipped)
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easy exit seat (if equipped)
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autolamp delay
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language
Warning Messages
The warning messages are single cycle, non-resettable and repetitive warning messages. The single cycle warning messages are:
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CHECK SUSPENSION
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CHECK COMPASS MODULE
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NO RESPONSE COMPASS
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ENGINE TEMP DATA
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COMPASS DATA ERROR
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DOOR SENSOR DATA ERROR
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CHARGING SYSTEM DATA ERROR
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CHECK PARK ASSIST
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CHECK FUEL CAP
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LOW WASHER FLUID LEVEL
The single cycle warning messages display once whenever the ignition switch is turned to ON or a fault occurs in a system and can be cleared by
pressing the RESET button.
The repetitive warning messages are:
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LOW BRAKE FLUID LEVEL
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CHECK CHARGING SYSTEM
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LOW FUEL LEVEL
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LOW OIL PRESSURE
