G900X/G950 Installation and Maintenance Manual – Troubleshooting
Page D-37
190-00719-00
Revision D
D.4.5 Miscellaneous Alerts
Message Cause
Solutions
XTALK ERROR – A flight
display cross talk error has
occurred.
A communication error
has occurred between the
MFD and PFD.
•
Ensure a database error has not
occurred (identified in the ALERTS
window on the PFD).
−
If a database error has occurred,
correct error before proceeding.
•
Check display Ethernet interconnect
wiring and pins for faults.
•
Replace PFD1 with a known good
unit, to verify location of problem:
−
If problem persists, reinstall
original PFD1.
−
If problem persists replace MFD.
SIMULATOR – Sim mode is
active. Do not use for
navigation.
The system is in simulator
mode.
•
Check wiring (pin 54 in all GDU
connectors should be empty).
•
Replace PFD1 with a known good
unit, to verify location of problem:
−
If problem persists, reinstall
original PFD1.
−
If problem persists replace MFD.