Garmin G1000 NXi Supplemental Maintenance Manual page 71

The FAILED PATH message is triggered by a timeout of any one digital channel.
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.
To determine which path is causing the FAILED PATH message, start the PFD and MFD in
configuration mode. Using the FMS knobs, scroll to the pages listed below.
The channels that are checked are listed on these pages in config mode:
1) GDU RS-232 / ARINC 429 CONFIG (PFD and MFD)
2) GIA RS-232 / ARINC 429 CONFIG (GIA1 and GIA2)
3) GIA CAN / RS-485 CONFIGURATION (GIA1 and GIA2)
The box next to each channel indicates the current status of the channel per the below:
•
Red X = data path is known to be failed
•
Amber question mark (?) = data path status is unknown
•
Green checkmark (✓)= data path is known to be good
The applicable data paths can be verified by viewing the following configuration mode pages.
For paths not listed here, refer to the Cessna G1000 Nav III Line Maintenance Manual.
G1000 Supplemental Maintenance Manual
Textron Nav III Series
190-02128-04
IMPORTANT!
NOTE
Page 5-3
Revision 3