Garmin G1000 Nxi System Maintenance Manual page 240

Symptom
Transmit Power Fault
1030 MHz Fault
1090 MHz Fault
Receiver Cal Fault
Transmitter Cal Fault
Baro Altitude Fault
Temperature Fault
TCAS Equipage Fault
Radio Altitude Fault
Display Fault
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Recommended Action
• Check aircraft power supply
• Return unit to an authorized Repair Facility for service if fault persists
• Cycle power and retry self-test
• Return unit to an authorized Repair Facility for service if fault persists
• Cycle power and retry self-test
• Return unit to an authorized Repair Facility for service if fault persists
• Check antenna installation and all cable connections and retry self-test.
Ensure that self-test occurs in area free of buildings and large objects that
can reflect signals.
• Download the assert log and use Assert Log Diagnosis Tool or send to
Garmin for diagnosis.
• Return unit to an authorized Repair Facility for service if fault persists
• Check antenna installation and all cable connections and retry self-test.
Ensure that self-test occurs in area free of buildings and large objects that
can reflect signals.
• Download the assert log and use Assert Log Diagnosis Tool or send to
Garmin for diagnosis.
• Return unit to an authorized Repair Facility for service if fault persists
Check wiring to source of barometric altitude and ensure that source is
operating.
Download the assert log and send to Garmin for diagnosis
Check wiring to TCAS Equipage data source and ensure that source is
operating
Check wiring to source of radio altitude and ensure that source is operating
• Check the HSDB connection between the GTS Processor and the display
• Verify that the display is operational.
• For non-HSDB installations, ensure that the Traffic Display Status Valid
inputs (TAS/TCAS I) and RA Display Status Valid inputs (TCAS II) are
wired properly to the Display Status Valid output of the display device.
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