Garmin G3X Pilot's Manual page 319

Message
Not receiving data on ARINC 429
channel 'X'
Not receiving SL30 RS-232 data
Not receiving TIS RS-232 data
Obstacle database mismatch
Obstacle database missing
SL30 communication error
Terrain database mismatch
Terrain database missing
Using internal flight plan for
navigation
Using external GPS position data The display that is configured for a GPS antenna
XM receiver needs service
190-01115-00 Rev. G
Annunciations & Alerts
Comments
Data is not being received on the specified GSU
73 ARINC 429 input ('x' can be 1-4).
Not receiving RS-232 data from the SL30.
Not receiving RS-232 data from TIS.
The PFD and MFD have different obstacle
database versions installed. Install the correct
obstacle database on all displays for proper
terrain/obstacle alerting.
The obstacle database is missing. Install the
correct obstacle database on all displays for
proper terrain/obstacle alerting.
Incorrect OBS value received from SL30. Check
SL30 OBS resolver setup (see Installation
Manual guidance).
The PFD and MFD have different terrain
database versions installed. Install the correct
terrain database on all displays for proper
terrain/obstacle alerting.
The terrain database is missing. Install the
correct terrain database on all displays for
proper terrain/obstacle alerting.
Communication with the external GPS
navigation source has failed. The G3X internal
flight plan is being used for navigation.
connection is not available; the remaining
displays are using 2D GPS position data from
an external GPS navigator.
The display should be serviced when possible.
Garmin G3X Pilot's Guide
301