60
GTN 625/635/650 Cockpit Reference Guide
190-01004-04 Rev. N
Messages
Message
Description
Action
CONFIGURATION
MODULE -
GTN configuration
module needs
service.
The GTN cannot
communicate with its
configuration module.
The GTN may still have
a valid configuration.
Contact dealer for service.
COOLING -
GTN overtemp.
Reducing backlight
brightness.
Backlight brightness
has been reduced
due to high display
temperatures. The
backlight level will
remain high enough to
be visible in daylight
conditions.
Decrease cabin temperature and
increase cabin airflow (especially
near the GTN). Contact dealer for
service if this message persists.
COOLING FAN -
The cooling fan has
failed.
The GTN cooling fan is
powered, but it is not
turning at the desired
RPM.
Decrease cabin temperature and
increase cabin airflow (especially
near the GTN) to prevent damage
to the unit. Contact dealer for
service.
CROSSFILL
ERROR -
Crossfill is
inoperative. See
CRG for crossfilled
items.
Crossfill is not
working due to loss
of communication
with other GTN or due
to one GTN needing
service.
See Pilot’s Guide for a list of
crossfilled items that will no longer
be crossfilled. Contact dealer for
service.
CROSSFILL
ERROR -
GTN
Navigation DB
mismatch. See
CRG for crossfilled
items.
The navigation
databases do not
match between GTNs
resulting in a loss
of communication
between two units.
Check the specified database
version of both GTNs and ensure it
is up-to-date. Update the specified
database if needed.
Summary of Contents for GTN 625
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