Garmin G1000 Nxi System Maintenance Manual page 208

NAV Alerts
Failure Message
NAV1 SERVICE – NAV1 needs
service. Return unit for repair.
NAV2 SERVICE – NAV2 needs
service. Return unit for repair.
NAV1 RMT XFR – NAV1 remote
transfer key is stuck.
NAV2 RMT XFR – NAV2 remote
transfer key is stuck.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Cause
The system has detected a failure
in NAV1 receiver.
The system has detected a failure
in NAV2 receiver.
The NAV1 external remote
transfer switch is stuck in the
enabled (or "pressed") state.
The NAV2 external remote
transfer switch is stuck in the
enabled (or "pressed") state.
Solution
•
Replace GIA1.
•
Return unit to an Authorized Repair
Facility for service.
•
Replace GIA2.
•
Return unit to an Authorized Repair
Facility for service.
Press the NAV1 external remote
transfer switch again to cycle its
operation.
Check NAV1 remote transfer switch and
wiring.
Switch GIA1 and GIA2, to identify
whether the unit or connectors/wiring is
at fault (Both GIAs must be configured
when swapped, see Section 7.3):

If problem follows unit, replace
GIA1.

If problem persists, continue to
troubleshoot remote transfer
switch & wiring.
Press the NAV2 external remote
transfer switch again to cycle its
operation.
Check NAV2 remote transfer switch and
wiring.
Switch GIA1 and GIA2, to identify
whether the unit or connectors/wiring is
at fault (Both GIAs must be configured
when swapped, see Section 7.3):

If problem follows unit, replace
GIA1.

If problem persists, continue to
troubleshoot remote transfer
switch & wiring.
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