Garmin G1000 System Maintenance Manual page 156

PFT step 12: Verify AP disconnect enabled
This step is checking to make sure GIA1, GIA2, and all servos have are connected to a 28 volt AP
disconnect.
If this step fails, make sure the AP disconnect input to GIA1, GIA2, and all servos is connected and
registering 28 volts. Make sure the AP disconnect switch has been installed in the aircraft. Make sure no
one is holding the AP disconnect switch down on the yoke.
PFT step 13: Verify servo validity
This step is checking to make sure all the Servos are up and communicating with valid data to the GIA in
TDM mode.
If this step fails, then make sure all Servos are turned on and communicating by checking for green boxes
on the GFC configuration page.
PFT step 14: Verify cross GIA PFT is completed
This step is checking to make sure the other GIA is also on step 14 of its PFT.
If this step fails, try cycling power on GIA1, GIA2, and all servos. If PFT still fails at step 14 then you
will need to go check the PFT status of the other GIA and see what step it is failing. NOTE: The PFT
status is communicated between GIA1 and GIA2 using HSDB. As a result, both the PFD and MFD must
be powered for this state to pass.
PFT step 15: PFT completed
The PFT has successfully completed.
PFT step 16: PFT failed
The PFT has failed.
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Revision 1
G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
190-00716-01