Garmin G500 Pilot's Manual page 365

Alert Message
DATALINK
190-00601-02 Rev. J
Description
• ADS-B fault: UAT
receiver.
• ADS-B fault: 1090
receiver.
• FIS-B weather has
failed.
• GDL 88 ADS-B
Failure. Unable to
transmit ADS-B
messages.
• GDL 88 ADS-B fault.
• 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 is lost.
Garmin G500/G600 Pilot's Guide
TOC
Action
• Contact a Garmin dealer for
service.
Cover
6-5