User`s guide

Problem Possible Cause Action
POS data flag shows Antenna or wiring
Position source wpt
Position source serial
data
Interference
Installation setup
Check the antenna
and wiring
Ensure that a
waypoint is selected
as the current
destination and a Nav
flag is not shown
Ensure that the serial
data output is
configured properly
Have dealer/installer
check for any
interference sources
Have dealer/installer
check for proper
MX20 setup
RTE (Route) flag Position source route Ensure that the
external position
source has an active
route engaged
ALT (Altitude) flag Serial altitude source Ensure the serial
altitude encoder is
powered up and
working properly
Have dealer/installer
check for proper
installation and setup
of the encoder
If altitude data is
provided by an Apollo
GX product, ensure
that the GPS position
has been acquired
and a waypoint is
selected as the
current destination
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Detailed Operation