Gtx 345R Transponder Troubleshooting - Garmin G1000 Line Maintenance Manual

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4.7.5 GTX 345R Transponder Troubleshooting

4.7.5.1 GTX 345R System Messages
Table 4-7 lists GTX 345R related system messages, possible causes, and recommended
actions.
System Message
GTX1 MANIFEST
XPDR1 FAIL
XPDR1 SERVICE
4.7.5.2 GTX General Troubleshooting
This section provides information to assist troubleshooting if problems occur to the
transponder after completing maintenance. Refer to the GTX System Configuration Log
retained in the aircraft permanent records for a list of the interfaced equipment and
system configuration data. When troubleshooting the GTX, refer to the wire routing
drawings and interconnect wiring diagrams that are retained in the aircraft permanent
records.
Figure 4-12 provides a general troubleshooting flowchart. Refer to the Garmin GTX 33x
and GTX 3x5 ADS-B Maintenance Manual (190-00734-11) for further troubleshooting
information and additional flowcharts.
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Page 4-62
Table 4-7. GTX 345R System Messages
Cause
GTX1 software
mismatch.
XPDR1 is inoperative.
A fault has been
detected in XPDR1.
Recommended Actions
• Load the correct software.
• Check communication
paths.
• Replace the GTX.
• Reload GTX configuration
and verify aircraft data is
set on the GTX.
• Replace the GTX.
LMM for the Kodiak 100
190-02102-00 Rev.4