Garmin G1000 Nxi System Maintenance Manual page 192

MONITOR FAULT
"GIA DIS FAULT"
"HOST DATA DIF"
"HOST DATA INV"
"SVO PWR INV"
"STRP CODE CHNG"
"MET STUCK SWTCH"
"MET STATUS DIF"
Control Processor
The control processor contains the logs that are found in these processors –
3 – Pitch Servo
5 – Roll Servo
7 - Yaw
9 – Pitch Trim Servo
There are two main groupings of faults that can occur in the control processor.
The first grouping of faults can occur during the GSA unit pre-flight test (PFT). If there is a fault
during PFT the unit will not be able to transition to normal mode and the only way to clear this
state would be to cycle unit power.
The second grouping of faults can occur during normal mode. These faults generally cause a
disconnect of power to the GSA and report that a fault has occurred to the GIA.
The Notes column indicates any actions that can be taken to troubleshoot the problem in the
aircraft by the technician. Any faults that are not listed here indicate an internal problem
requiring replacement of the servo. If the items in the Notes column check out ok, replace the
servo.
CONTROL PFT STEP
"INT COMM TEST FAIL"
"CTL MOT PWR ON FAIL"
"MON MOT PWR ON FAIL"
"HALL 1 FAIL"
"HALL 2 FAIL"
"HALL 3 FAIL"
"HALL 4 FAIL"
"HALL 5 FAIL"
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Normal Mode Faults
NOTES
Check the AP Disconnect power into the unit
Check the AHRS wiring to the system
Check the AHRS wiring to the system
Check unit power and AP Disconnect power
Check the connector strap inputs to the unit
Check the MET switch inputs into the system
Check the MET switch inputs into the system
PFT Faults
NOTES
This can sometimes be a result of a failure on the other board,
check faults on other processor
Check unit power and AP Disconnect power
Check unit power and AP Disconnect power
Check unit power and AP Disconnect power
Check unit power and AP Disconnect power
Check unit power and AP Disconnect power
Check unit power and AP Disconnect power
Check unit power and AP Disconnect power
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