Pilot's Guide

6-4
Garmin G500/600 Pilot’s Guide
190-00601-02 Rev. H
Cover TOC
Foreword
Sec 1
System
Sec 2
PFD
Sec 3
MFD
Sec 4
Hazard
Avoidance
Sec 5
Additional
Features
Sec 6
Annun.
& Alerts
Sec 7
Symbols
Sec 8
GlossaryAppendix A
Appendix B
Index
Alert Message Description Action
DATALINK • GDL 88 ADS-B
Failure. Unable to
transmit ADS-B
messages.
• GDL 88 ADS-B fault.
• ADS-B fault: UAT
receiver.
• ADS-B fault: 1090
receiver.
• GDL 88 needs
service.
• GDL 88 ADS-B is not
transmitting position.
Check GPS devices.
• GDL 88 control panel
input fault. Check
transponder mode.
• GDL 88 ADS-B fault.
Pressure altitude
source inoperative.
• GDL 88 external
traffic system
inoperative or
connection lost.
• GDL 88 configuration
module needs
service.
• GDL 88 is inoperative
or connection to
GDU is lost.
• GDL 88 CSA failure.
• Contact your Garmin dealer for
service.