Garmin GPS 400W Pilot's Manual & Reference page 188

11 - MESSAGES
ABBREVIATIONS &
NAV TERMS
Basemap database integrity error — The 400W-series
unit has detected a failure in the built-in basemap (land
data) database. Land data does not appear on the Map Page.
Other unit functions continue to work normally, however
the 400W-series unit should be taken to your Garmin
dealer for service at your earliest convenience.
Boot block verify failed - Return unit for repair
— System integrity testing has determined that the boot
block has become corrupted. Return the unit to your
Garmin dealer for service.
Cannot navigate locked FPL — You have attempted
to navigate a flight plan (FPL) with one or more locked
waypoints. A waypoint can be "locked" when the NavData
card is replaced and the waypoint(s) does not exist in the
new database.
Can't change an active waypoint — An attempt has
been made to modify the position of the active "to" or
"from" waypoint. The 400W-series unit does not allow
modifications to user waypoints currently being utilized for
navigation guidance.
Can't delete an active or FPL waypoint — An attempt
has been made to delete the active "to" or "from" waypoint.
The 400W-series unit does not allow you to delete user
waypoints currently being utilized for navigation guidance.
CDI key stuck — The CDI key is stuck in the enabled (or
"pressed") state. Try pressing the CDI key again to cycle
its operation. If the message persists, contact your Garmin
dealer for assistance.
CDI key disabled — The installation has disabled the
CDI key so that systems (such as an EFIS) connected to
the 400 series unit will always have GPS deviation data on
one output (main) and VLOC deviation data on the other
output (Nav). See your installer for more information.
178
Check unit cooling — The 400W-series unit has detected
excessive display backlighting temperature. The back-
lighting has been automatically dimmed to reduce the tem-
perature. Check for adequate ventilation or check cooling
airflow. Contact your Garmin dealer for assistance.
COM has failed — (GNS 430W/GNC 420W only) A fail-
ure has been detected in the communications transceiver.
The COM transceiver is not available and the unit should
be returned to your Garmin dealer for service.
COM is not responding — (GNS 430W/GNC 420W
only) Internal system-to-system communication between the
main processor and the COM transceiver has failed. Opera-
tional status of the COM transceiver is unknown and the
®
unit should be returned to your Garmin dealer for service.
If the Com board is still working, it will automatically tune
to 121.500 MHz. Transmit and receive functions may still
operate regardless of the displayed frequency.
COM needs service — (GNS 430W/GNC 420W only)
A failure in the communications transceiver has been
detected. The COM transceiver may still be usable, but the
unit should be returned (at your earliest convenience) to
your Garmin dealer for service.
COM push-to-talk key stuck — (GNS 430W/GNC
420W only) The external push-to-talk (PTT) switch is stuck
in the enabled (or "pressed") state. Try pressing the PTT
switch again to cycle its operation. If the message persists,
contact your Garmin dealer for assistance.
COM remote transfer key is stuck — (GNS 430W/GNC
420W only) The remote COM transfer switch is stuck in
the enabled (or "pressed") state. Try pressing the switch
again to cycle its operation. If the message persists, contact
your Garmin dealer for assistance.
COM transfer key stuck — (GNS 430W/GNC 420W
only) The COM flip-flop key is stuck in the enabled (or
"pressed") state. Try pressing the COM flip-flop key again
to cycle its operation. If the message persists, contact your
Garmin dealer for assistance.
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