Garmin GMX 200 Pilots Guide - Page 130

Appendix Troubleshooting Problem RTE (Route) flag LT (Lightning) flag TER (Terrain) flag No traffic display "Special Terrain" message TCAD flag TAS flag RDR (Amber) flag LINK flag XPDR flag ADSB flag IDENT (green) flag Radar Alert flag Possible Cause Position source route WX500 installation Altitude source ADS-B system installation GMX 200 configuration TCAD Installation TAS Installation Radar Installation FIS Sensor Installation TIS-A Sensor Installation GDL 90 is reporting that its internal GPS is not reporting a position or is reporting an invalid position. Note that ADS-B broadcasts do not include position reports when this flag is present. This is not a problem. This flag appears when the GDL 90 is in the Ident mode. This is not a problem. This flag appears when a persistent Target Alert is active. Target and Radar Alerts are available only in the GWX 68. Action Ensure that the external position source has an active route engaged. Have dealer/installer check for proper installation of the WX500. Have dealer/installer check for proper altitude input You must have the ADS-B system installed and configured. If you do have an ADS-B system, check the antennas and other components for proper operation. Have dealer/installer check for proper GMX 200 setup. Must be set to normal. Ensure that the TCAD unit is installed and functional. Ensure that the TAS unit is installed and functional. Ensure that the Radar unit is installed and functional. Ensure that the FIS unit is installed and functional. Ensure that the TIS-A unit is installed and functional. Ensure the GDL 90 is installed and functional. Ensure the GDL 90 GPS antenna has a clear view of the sky to receive GPS signals. None required. None required. See the Installation Manual for additional troubleshooting procedures. 118 190-00607-02 Rev C