Garmin G1000 Maintenance Manual page 110

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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 following logs:
3 – Pitch Servo
5 – Roll Servo
7 – Yaw Servo
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 is
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.
Page 5-74
Rev. B
Normal Mode Faults
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
NOTES
G1000 System Maintenance Manual
190-00907-00