GNS 430 Pilot’s Guide and Reference
SECTION 13 – MESSAGES,
ABBREVIATIONS, & NAV TERMS
13-7
Select VLOC on CDI for approach - The
aircraft is inbound and within 3 nm of the FAF;
and the active approach is not a GPS-approved
approach. Verify that the VLOC receiver is tuned
to the proper frequency and press the CDI Key to
display ‘VLOC’ (directly above the CDI Key).
Set course to [###]° - The course select for
the external CDI (or HSI) should be set to the
specified course. The message only occurs when
the curr
ent selected course is greater than 10°
different from the desired track.
Steep turn ahead - This message appears
approximately one minute prior to a tur
n in one
of the following three conditions: 1) the turn
requires a bank angle in excess of 25° in order
to stay on course, 2) the turn requires a course
change greater than 175°, or 3) during a DME arc
approach the turn anticipation distance exceeds
90 seconds.
Stored data was lost - All user waypoints, flight
plans, and system settings have been lost due to a
memory batter
y failure or system reset.
Terrain - See Section 11.3 for complete list of
TERRAIN related Alerts and Annunciations.
Terrain configuration conflict - The hardware
configuration does not match the terrain software
configuration. The operational status of the
terrain components is unknown and the unit
should be retur
ned to a Garmin dealer for service.
Terrain configuration has changed - The
software has detected a change in the terrain
configuration.
Terrain has failed - The terrain functionality
self-test has failed. The operational status of
the terrain components is unknown and the unit
should be retur
ned to a Garmin dealer for service.
Timer has expired - The count down timer has
reached zer
o.
Traffic device needs service - Either the TCAD
battery or the TCAD interr
ogation device has
failed. If the message persists, contact a Garmin
dealer for assistance.
Unit configuration has changed - The GNS
430 has detected a failure (during initial power
up) in its system configuration. Some system
components may be unusable. T
ry cycling power
off and back on. If the message persists, contact a
Garmin dealer for assistance.
User card format unknown - A data card has
been inserted, but the format of the card is not
recognized.
VLOC has failed - The GNS 430 has detected a
failur
e in its VLOC r
eceiver. The VLOC receiver is
not available and the unit should be returned to a
Garmin dealer for service.
VLOC is not responding - Internal system-
to-system communication between the main
processor and the VLOC r
eceiver has failed.
Operational status of the VLOC receiver is
unknown and the unit should be returned to a
Garmin dealer for service.
VLOC needs service - The GNS 430 has
detected a
failure in its VLOC receiver. The VLOC
receiver may still be usable, but the unit should be
returned (at the earliest convenience) to a Garmin
dealer for service.
VLOC remote transfer key is stuck - The
remote VLOC transfer switch is stuck in the
enabled (or pr
essed) state. Try pressing the
switch again to cycle its operation. If the message
persists, contact a Garmin dealer for assistance.
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