Garmin G1000 Maintenance Manual page 72

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SELECT UNIT—GIA2
RS-232 WINDOW
(Con't.)
CHNL 6 GRS 77 #2
Page 5-26
Rev. A
GIA2/GRS 77 #2 data path is functioning correctly.
GIA2/GRS 77 #2 data path is not functioning correctly.
•
Check PFD1 Alert Window for GIA or GRS
configuration or software error messages. Correct
any errors before proceeding.
•
Verify GRS77 #2 status is OK using the AUX -
SYSTEM STATUS PAGE on the MFD. If it has a
Red-X, troubleshoot why the GRS is offline before
proceeding.
•
Ensure GRS connecter is secure and proper wire
harness strain relief is provided.
•
Swap GIA1 and GIA2, reconfigure both GIA's to
their new locations to confirm if the problem is in
the original GIA2.
−
Replace original GIA2 if box turns green after
swapping units.
•
Swap GRS1 and GRS2 (if a GRS2 is installed) to
confirm if the problem is in the original GRS2.
−
Replace original GRS2 if box turns green after
swapping units.
•
Check the GIA2/GRS 77 #2 interconnect wiring
and unit connector pins for faults.
a. Replace GRS 77 #2.
GIA2/GRS 77 #2 data path functionality is unknown.
Reload GIA2 configuration files.
G1000 System Maintenance Manual
190-00903-00