190-00498-01 Rev. A Garmin G1000 Pilot’s Guide for Cessna Nav III A-13APPENDIX AGTX 33 MESSAGE ADVISORIESMessage CommentsXPDR1 CONFIG – XPDR1 config error.Config service req’d.The transponder configuration settings do not match those of backup configurationmemory. The G1000 system should be serviced.MANIFEST – GTX1 softwaremismatch. Communication halted.The transponder has incorrect software installed. The G1000 system should beserviced.XPDR1 SRVC – XPDR1 needs service.Return unit for repair. The #1 transponder should be serviced when possible.XPDR1 FAIL – XPDR1 is inoperative. There is no communication with the #1 transponder.GRS 77 MESSAGE ADVISORIESMessage CommentsAHRS1 TAS – AHRS1 not receivingairspeed.The #1 AHRS is not receiving true airspeed from the air data computer. The AHRSrelies on GPS information to augment the lack of airspeed. The G1000 system shouldbe serviced.AHRS1 GPS – AHRS1 using backupGPS source.The #1 AHRS is using the backup GPS path. Primary GPS path has failed. The G1000system should be serviced when possible.AHRS1 GPS – AHRS1 not receivingany GPS information.The #1 AHRS is not receiving any or any useful GPS information. Check AFMSlimitations. The G1000 system should be serviced.AHRS1 GPS – AHRS1 not receivingbackup GPS information.The #1 AHRS is not receiving backup GPS information. The G1000 system should beserviced.AHRS1 GPS – AHRS1 operatingexclusively in no-GPS mode.The #1 AHRS is operating exclusively in no-GPS mode. The G1000 system should beserviced.AHRS MAG DB – AHRS magneticmodel database version mismatch. The #1 AHRS and #2 AHRS magnetic model database versions do not match.AHRS1 SRVC – AHRS1 Magnetic-fieldmodel needs update.The #1 AHRS earth magnetic field model is out of date. Update magnetic field modelwhen practical.GEO LIMITS – AHRS1 too far North/South, no magnetic compass. The aircraft is outside geographical limits for approved AHRS operation. Heading isflagged as invalid.GEO LIMITS – AHRS2 too far North/South, no magnetic compass.MANIFEST – GRS1 softwaremismatch. Communication halted. The #1 AHRS has incorrect software installed. The G1000 system should be serviced.MANIFEST – GRS2 softwaremismatch. Communication halted. The #2 AHRS has incorrect software installed. The G1000 system should be serviced.GMU 44 MESSAGE ADVISORIESMessage CommentsHDG FAULT – AHRS1 magnetometerfault has occurred.A fault has occurred in the #1 GMU 44. Heading is flagged as invalid. The AHRS usesGPS for backup mode operation. The G1000 system should be serviced.MANIFEST – GMU1 softwaremismatch. Communication halted.The GMU 44 has incorrect software installed. The G1000 system should be serviced.