Garmin G1000 Maintenance Manual page 40

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System Annunciation Troubleshooting (continued)
Annunciation
GPS INTEG or Time
Page 5-4
Rev. B
Associated
LRU
•
Check PFD Alert Window for GIA1/2 configuration,
software or failed data path error messages.
Correct any errors before proceeding.
•
Verify the aircraft is located where the GPS
antennas have a clear view of the sky.
•
Check for possible external interference to the
GPS receivers.
1. Ensure that a cell phone or a device using cell
2. Turn to the MFD AUX – GPS STATUS page on
GIA1 or 2
3. Verify the aircraft is not parked in close
•
Verify the GIA's are online by checking for a green
checkmark next to the GIA on the MFD Aux –
System Status page.
•
If a GIA is not online (a Red-X will be present
instead of a green check mark), check for power
input faults.
•
Refer to the GIAS GPS Troubleshooting Section
for additional actions.
Solution
phone technology is not turned on (even in a
monitoring state) in the cabin.
and check the GPS strength bars on both GPS
receivers. If the signal strength levels are
erratic, disappear and reappear rapidly, or
switch between a solid and hollow bar
frequently there is an external device
interfering with the GPS receivers. Turn off
any devices that radiate a signal in the local
area or move the aircraft to another location to
remove the interference.
proximity to a hanger with the doors open and
equipped with a GPS repeater.
G1000 System Maintenance Manual
190-00907-00