11
190-00607-02 Rev C
Appendix
Problem
Possible cause
Action
RTE (Route) flag
Poston source route
Ensure that the external poston source has an actve route
engaged.
LT (Lghtnng) flag
WX00 nstallaton
Have dealer/nstaller check for proper nstallaton of the
WX00.
TER (Terran) flag
Alttude source
Have dealer/nstaller check for proper alttude nput
No traffic dsplay
ADS-B system nstallaton
You must have the ADS-B system nstalled and configured.
If you do have an ADS-B system, check the antennas and
other components for proper operaton.
Have dealer/nstaller check for proper GMX 200 setup.
“Specal Terran” message
GMX 200 configuraton
Must be set to normal.
TCAD flag
TCAD Installaton
Ensure that the TCAD unt s nstalled and functonal.
TAS flag
TAS Installaton
Ensure that the TAS unt s nstalled and functonal.
RDR (Amber) flag
Radar Installaton
Ensure that the Radar unt s nstalled and functonal.
LINk flag
FIS Sensor Installaton
Ensure that the FIS unt s nstalled and functonal.
XPDR flag
TIS-A Sensor Installaton
Ensure that the TIS-A unt s nstalled and functonal.
ADSB flag
GDL 90 s reportng that ts
nternal GPS s not reportng
a poston or s reportng an
nvald poston. Note that
ADS-B broadcasts do not
nclude poston reports when
ths flag s present.
Ensure the GDL 90 s nstalled and functonal. Ensure the
GDL 90 GPS antenna has a clear vew of the sky to receve
GPS sgnals.
IDENT (green) flag
Ths s not a problem. Ths flag
appears when the GDL 90 s
n the Ident mode.
None requred.
Radar Alert flag
Ths s not a problem. Ths flag
appears when a persstent
Target Alert s actve. Target
and Radar Alerts are avalable
only n the GWX 6.
None requred.
See the Installation Manual for additional trouble-
shooting procedures.
Troubleshooting