Garmin GTN Xi Series Maintenance Manual page 59

Alert Text
REMOTE KEY
STUCK - Remote
OBS key is stuck.
REMOTE KEY
STUCK - Remote
CDI key is stuck.
REMOTE KEY
STUCK - Remote go
around key is stuck.
COOLING FAN - The
cooling fan has failed.
GNS CROSSFILL -
GTN user waypoint(s)
replaced with GNS
user waypoint(s).
190-01007-C1
Rev. 1
Possible Cause
The remote OBS switch is stuck
in the enabled or pressed state.
The remote CDI key is stuck in
the enabled or pressed state.
The remote Go Around switch is
stuck in the enabled or pressed
state.
The wiring to the fan may be
faulty, the fan connector may be
unplugged, or the fan may have
failed.
A user waypoint from the GNS
replaced one or more existing
waypoints on the GTN Xi.
Corrective Action
Press the switch again to cycle its
operation.
Go to the GTN Diagnostics > Discrete
Inputs page in Configuration mode and
check that the state of the input changes
when the OBS switch is pressed and
released.
Verify that the remote OBS switch wiring is
correct.
Contact Garmin technical support.
Press the switch again to cycle its
operation.
Go to the GTN Diagnostics > Discrete
Inputs page in Configuration mode and
check that the state of the input changes
when the CDI switch is pressed and
released.
Verify that the CDI switch wiring is correct.
Contact Garmin technical support.
Press the switch again to cycle its
operation.
Go to the GTN Diagnostics > Discrete
Inputs page in Configuration mode and
check that the state of the input changes
when the Go Around switch is pressed
and released.
If the state still shows as active, inspect
the wiring to ensure that it is not loose or
shorting to ground.
• Check the wires between P1001-43,
-58, and -59 and the fan to ensure they
are not cut, damaged, or broken
• Check that the fan connector is
completely engaged
• Check that the fan blades are not
obstructed and they can rotate freely
• Check P1001 for ground lugs pushing
on fan
The fan does not turn on if the unit is cool.
Ensure that the waypoints on the GNS
have unique names before transferring to
the GTN Xi to avoid overwriting existing
waypoints.
GTN Xi Part 23 AML STC Maintenance Manual
Page 5-9