Garmin G900X Pilot's Manual page 458

APPENDIX A
GDL 69/69A DATA LINK RECEIVER TROUBLESHOOTING
Some quick troubleshooting steps can be performed to find the possible cause of a failure:
• Ensure the owner/operator of the aircraft in which the Data Link Receiver is installed has subscribed to XM
• Ensure the XM subscription has been activated
• Perform a quick check of the circuit breakers to ensure that power is applied to the Data Link Receiver
For troubleshooting purposes, check the LRU Information Box on the AUX - System Status Page for Data Link
Receiver (GDL 69/69A) status, serial number, and software version number (Figure A-2).
If a failure still exists, the following messages may provide insight as to the possible problem:
Message
CHECK ANTENNA
UPDATING
NO SIGNAL
LOADING
OFF AIR
---
WEATHER DATA LINK FAILURE
ACTIVATION REQUIRED
A-18
Message Location
XM Radio Page - active channel field
XM Radio Page - active channel field
XM Radio Page - active channel field
Weather Datalink Page - center of page
XM Radio Page - active channel field
XM Radio Page - active channel field
XM Radio Page - active channel field
Weather Datalink Page - center of page
Weather Datalink Page - center of page XM subscription is not activated
Table A-4 GDL 69/69A Error Messages
Garmin G900X Pilot's Guide
Description
Data Link Receiver antenna error; service required
Data Link Receiver updating encryption code
Loss of signal; signal strength too low for receiver
Acquiring channel audio or information
Channel not in service
Missing channel information
No communication from Data Link Receiver
within last 5 minutes
190-00726-00 Rev. A