Garmin G3X Pilot's Manual page 353

Message
Demo Mode - Do not use for
navigation
GDU software version mismatch
GPS antenna not connected
GPS antenna shorted to ground
GPS receiver needs service
GSU 73 configuration error
GSU 73 needs service
GSU 73 not responding
GSU 73 software update required A software update for the GSU 73 is required.
GSU 73 temperature too low
Hardware fault detected
Mag cal incomplete - repeat mag
cal
Magnetic anomaly - Check mag
installation
190-01115-00 Rev. J
Annunciations & Alerts
Comments
The system is in demo mode, do not use for
navigation.
The PFD and MFD do not have the same
software version installed. Display crosstalk is
disabled. Ensure all installed display software
matches.
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 GSU configuration settings do not match
the configuration settings stored in backup
memory. The G3X system should be serviced.
The GSU should be serviced when possible.
The GDU has lost communication with the GSU.
Consult the install manual for instructions on
performing a GSU 73 software update.
The GSU temperature is too low. If the problem
persists, the G3X system should be serviced.
Send your GDU in for service.
The magnetic calibration is incomplete or
improperly calibrated. Repeat the magnetic
calibration.
An anomaly has been detected in the
magnetometer data. Heading may or may not
be flagged invalid.
Garmin G3X Pilot's Guide
333