Garmin G1000 Line Maintenance Manual page 145

Uncontrolled if Printed
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Table 4-6. GEA 71B System Messages (Continued)
System Message
GEA 1 CM INOP -
COMM: Check GEA
Config Module
connection.
4.7.4.2 GEA 71B General Troubleshooting
Follow the steps listed in this section if there are no specific system messages present
but the GEA is suspected of being faulty.
1. Make sure the correct software is loaded to the GEA.
2. Reload configuration to the GEA.
3. Check the configuration module connector and wiring for damage inside the
connector backshell of the GEA.
4. Replace the configuration module wiring and pins of the GEA.
5. If the fault persists, replace the configuration module of the GEA.
6. Replace the Master Configuration Module.
7. Check the Master Configuration Module harness for faults and replace if
necessary.
8. Replace the thermocouple of the GEA.
9. Allow the GEA to warm up if the operating temperature is thought to be too high.
10. If it is thought the internal temperature of the GEA has exceeded the upper limit
of its operating range on the ground, check the cooling fans and wiring for proper
operation. Replace the cooling fan if not sure it is operating correctly. If the fault
persists, replace the GEA. If this condition occurs in flight, replace the GEA.
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LMM for the Kodiak 100
190-02102-00 Rev.4
Cause
The GEA Config Module
is inoperative due to loss
of communication with
configuration module.
Recommended Actions
• Cycle the power to the unit.
• Check the connection to
the configuration module
• If the fault persists, remove
and replace the
configuration module.
• If the fault persists, remove
and replace the GEA.
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