Garmin G1000 Line Maintenance Manual page 122

Uncontrolled if Printed
______________________________________________________________________________
Table 4-5. GIA 64W System Messages (Continued)
System Message
AHRS1 GPS
COM1 CONFIG
COM1 INOP - CAL
____________________________________________________________________________
Page 4-38
Cause
AHRS1 is operating
exclusively in no-GPS
mode.
COM1 configuration error
The COM subsystem of
GIA1 is inoperative due
to loss of factory
calibration.
Recommended Actions
• Ensure no device using cell
phone, Wi-Fi, or Bluetooth
technology is turned on
(even in a monitoring state)
in the aircraft cabin.
• Check the GPS status for
GIA1 and GIA2 on the GPS
Status page.
• If a GPS receiver cannot
acquire a position lock,
troubleshoot the GPS.
• Check GIA/GSU
interconnect.
• If the fault persists, replace
the GRS.
• Reload configuration to the
GIA.
• If the fault persists, check
the configuration module
wiring for faults and replace
if necessary.
• If the fault persists, replace
the master configuration
module.
• If the fault persists, replace
the GIA.
• Load the correct software.
• Cycle power to the GIA.
• If the problem persists,
replace the GIA.
LMM for the Kodiak 100
190-02102-00 Rev.4