Explorer 2WD V6-4.0L VIN K Flex Fuel (2002)
Driver/Vehicle Information Display: Testing and Inspection
Late Build
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, standard
corporate protocol (SCP), and UART-based protocol (UBP) communication networks to transmit and receive information. As a technician it is very
important to understand:
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where the input (command) originates from.
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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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does the module which received the input (message) control the input of the feature, or does it output a message over the SCP communication
network 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 three 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 depresses 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
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average fuel economy
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trip time
Setup Displays
The setup displays are timed modes and terminate after a finite interval. The setup display modes are:
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language
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English/metric units
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system check
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oil life status
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oil life in xx%
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charge system status
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oil pressure status
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engine temp status
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washer fluid level
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brake fluid level
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fuel level status
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distance to empty
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tire warning
Every 180 days or 8,000 km (5,000 miles) the OIL LIFE display in the message center SYSTEM CHECK will decrease gradually from 100% to 0%. At
5% oil life, the CHANGE OIL SOON warning indicator will illuminate. At 0% oil life, the OIL CHANGE REQUIRED warning indicator will
illuminate. OIL LIFE status is continually displayed in the SYSTEM CHECK portion of the message center and OIL LIFE warnings appear if OIL LIFE
is low.
Warning Messages
The warning messages are single-cycle, non-resettable and repetitive warning messages. The single-cycle warning messages are:
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CHANGE OIL SOON
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OIL CHANGE REQUIRED
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LOW WASHER FLUID LEVEL
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LOW BRAKE FLUID LEVEL
