Garmin GTN 625 Cockpit Reference Manual page 62

Message
GPS RECEIVER-
GPS receiver has failed.
Check GPS coax for
electrical short.
GPS RECEIVER-
Low internal clock
battery.
GPS RECEIVER-
GPS receiver needs
service.
GPS SEARCHING SKY-
Ensure GPS antenna has
an unobstructed view of
the sky.
GTN-
GTN needs service.
HTAWS-
Invalid Terrain Database
INTERFACE ADAPTER-
GAD 42 configuration
needs service.
54
Description
Internal communication
to the GPS module is
inoperative.
The GPS module indicates
that its clock battery is
low. The unit will function
normally, but may take a
longer than normal period
to acquire a GPS position.
The GPS module is
reporting that it needs
service. The GPS module
may continue to function.
The GPS module is
acquiring position and
may take longer than
normal. This message
normally occurs after
initial installation or if
the unit has not been
powered for several
weeks.
The GTN has lost
calibration data that was
set by Garmin during
manufacturing.
The Terrain database is of
insufficient resolution for
use with HTAWS.
GAD 42 indicates a
configuration error.
GTN 625/635/650 Cockpit Reference Guide (CRG)
Action
Use a different GPS receiver
or a non-GPS based source
of navigation. Contact
dealer for service.
Contact dealer for service.
Use a different GPS receiver
or a non-GPS based source
of navigation. Contact
dealer for service.
No action is necessary;
message is informational
only.
Contact dealer for service.
Load HTAWS specific terrain
database on the external SD
memory card.
Verify all input/output
data from/to the GAD 42
Interface Adapter. Contact
dealer for service.
190-01004-04 Rev. E