
Page 5-32 G1000 System Maintenance Manual – Diamond DA40/40F
Revision G 190-00545-01
5.6.2 Data Path Failure Troubleshooting
The following message indicates there is a data path connected to the MFD, PFD or to one of the GIA
63/63Ws that has failed:
Table 5-15. Data Path Failure Troubleshooting
Failure Message Cause Solutions
FAILED PATH – A data path has
failed.
A communications data path
status is not being received by the
G1000.
Determine which data path has failed
and follow the guidance as applicable
to the symptom described later in this
section.
The FAILED PATH message is triggered by a timeout of any one digital channel. These channels are
listed on the following configuration mode pages.
GDU Page Group – RS-232 / ARINC 429 CONFIG
GIA Page Group – RS-232 / ARINC 429 CONFIG
GIA Page Group – CAN / RS-485 CONFIGURATION (SW v0321.19 or earlier)
GIA Page Group –RS-485 CONFIGURATION (SW v0321.22 or later)
Examples of these pages and steps showing how to view these pages are shown in Section 8.2.4.
Important
: Once the FAILED PATH message has been triggered, it will remain on the list of messages
until the next power cycle. This latching was implemented so that for intermittent failures, the message
would remain at the end of the flight (to alert maintenance crew). Also, this keeps the crew from having
to acknowledge message repeatedly in the case of intermittent failures.
NOTE
For GDU software version prior to 7.01, the data path boxes may not be present on the
GDU and GIA config pages. Troubleshooting failed path messages will require manually
checking the data lines using a continuity tester and may require swapping GDU’s, GIA’s
or other units to determine if the fault lies in the unit or wiring. Garmin recommends
following the troubleshooting instructions for the red data boxes or boxes with a red X as
indicated below to help find the cause of the fault.
The box next to each channel indicates the current status of the channel per the below.
(SW v0321.19 or earlier)
Red = data path is known to be failed
Black = data path status is unknown
Green = data path is known to be good
(SW v0321.22 or later)
Red X = data path is known to be failed
Amber ? = data path status is unknown
Green 9= data path is known to be good
The applicable data paths can be verified by viewing the configuration mode pages listed in the next
section
.
Comentarios a estos manuales