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G1000 System Maintenance Manual
Page 5-45
190-00903-00
Rev.
A
5.1.6.5 NAV Advisory Messages
Advisory Message
Possible Cause
Recommended Actions
NAV1 SERVICE – NAV1
needs service. Return unit
for repair.
The G1000 has detected a
failure in NAV1 receiver.
Replace GIA1.
NAV2 SERVICE – NAV2
needs service. Return unit
for repair.
The G1000 has detected a
failure in NAV2 receiver.
Replace GIA2.
NAV1 RMT XFR – NAV1
remote transfer key is
stuck.
The NAV1 external remote
transfer switch is stuck in
the enabled (or “pressed”)
state.
•
Press the NAV1 external remote
transfer switch again to cycle its
operation.
•
Check NAV1 remote transfer switch
and wiring.
•
Switch GIA1 and GIA2, to verify location
of problem.
−
If problem follows the unit, replace
GIA1.
NAV2 RMT XFR – NAV2
remote transfer key is
stuck.
The NAV2 external remote
transfer switch is stuck in
the enabled (or “pressed”)
state.
•
Press the NAV2 external remote
transfer switch again to cycle its
operation.
•
Check NAV2 remote transfer switch
and wiring.
•
Switch GIA1 and GIA2, to verify location
of problem.
−
If problem follows the unit, replace
GIA2.
