190-02246-11
GI 275 Part 23 AML STC Maintenance Manual
Rev. 1
Page 4-33
Figure 4-25 External LRU Alert Message Troubleshooting
External LRU
Alert Messages
If fault persists,
contact Garmin.
Crosstalk error
Maintenance
Log Message
Crosstalk Error
Cause
Interfacing LRU is not powered
Interfacing LRU not configured
properly
Interfacing LRU does not have
compatible software version
Incorrect wiring
Corrective
Action
Verify power to unit
Verify configuration settings
Verify proper software version
Verify wiring
<External LRU>
service required
System ID set on GI 275
is different from that on
the external LRU
Cause
Corrective
Action
Ensure configured
System ID on GI 275
and external LRU are
the same
Service required
Maintenance
Log Message
GEA <1/2/3/4> did not
accept configuration
Cause
GEA configuration
settings were not
accepted
Corrective
Action
Verify GEA
configuration
settings
Service soon
Maintenance
Log Message
GTX 345 reports
config module
needs service
Corrective
Action
Troubleshoot in
accordance with the
GTX 3X5
maintenance
manual
Service soon
Maintenance
Log Message
System configuration module
has failed or is missing
Cause
Configuration module
not installed correctly
Configuration module
has failed
Corrective
Action
Verify configuration
module wiring
Replace
configuration
module
