Garmin G3X Touch Pilot's Manual page 362

Annunciations & Alerts
Message
[GDU name] terrain database
missing
[GDU name] navigation
database mismatch
[GDU name] navigation
database missing
[GDU name] audio database
missing.
[GDU name] audio database
incompatible
Using external GPS position data The display that is configured for a GPS antenna
[GDU name] GPS antenna not
connected
[GDU name] GPS antenna
shorted to ground
[GDU name] GPS receiver needs
service
SXM receiver needs service
Not receiving external GPS
[number] RS-232 Aviation data
340
Garmin G3X Touch
Comments
The terrain database is missing. Install the
correct terrain database on all displays for
proper terrain/obstacle alerting.
The PFD and MFD have different navigation
database versions installed. Install the correct
navigation database on all displays for proper
navigation.
The navigation database is missing. Install the
correct navigation database on all displays for
proper navigation.
The audio database is missing. Return unit for
service
The audio database is incompatible. Return
unit for service
connection is not available; the remaining
displays are using 2D GPS position data from
an external GPS navigator.
The display that is configured for a GPS antenna
connection does not detect any antenna current
draw from the GPS antenna RF connector.
The display that is configured for a GPS antenna
connection detects the GPS antenna RF
connector is shorted to ground.
The internal GPS receiver in the specified GDU
is not responding. The affected GDU should be
serviced.
The display should be serviced when possible.
Not receiving RS-232 data from the specified
external GPS navigator.
™ Pilot's Guide for Certified Aircraft
190-02472-00 Rev. D