APP_w286 — Gps Com Issue
Full alert identifier: APP_w286_gpsComIssue
Alert description
The Autopilot electronic control unit (ECU) encountered errors while communicating with the GPS receiver.
Potential impact
Autopilot features depending on GPS may not be available, or may not function as expected. Effects on functionality may vary depending on how long the errors persist.
Set condition
The Autopilot ECU encounters errors when attempting to communicate with the GPS receiver. Alert log signal data should provide more information on specific condition(s) detected.
Clear condition
The Autopilot ECU no longer detects errors when communicating with the GPS receiver.
Signals to check
These diagnostic fields are associated with APP_w286. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
NME Ainvalid Checksum
APP_
|
— |
PFLASH Read Error
APP_
|
— |
PFLASH Write Error
APP_
|
— |
UAR Tbus Full
APP_
|
— |
UAR Tframe Error
APP_
|
— |
UAR Tparity Error
APP_
|
— |
UAR Trx Fifo Overflow
APP_
|
— |
UAR Trx Fifo Underflow
APP_
|
— |
Show 22 more fields
| Signal | Unit |
|---|---|
UAR Ttx Fifo Overflow
APP_
|
— |
UB Xrx Frame Too Big
APP_
|
— |
Baudrate Mismatch
APP_
|
— |
Cfg Buf Null
APP_
|
— |
Empty Valid NMEA
APP_
|
— |
Esf Wt Msg Timeout
APP_
|
— |
Gps Buffer Overflow
APP_
|
— |
Gps Cfg Id Fail
APP_
|
— |
Gps Cfg Nack
APP_
|
— |
Gps Read Cfg No Response
APP_
|
— |
Gps Set Cfg No Ack
APP_
|
— |
Invalid Ascii NMEA
APP_
|
— |
Invalid ID
APP_
|
— |
Mcu Dbg Msg Invalid
APP_
|
— |
Mcu Dbg Msg Too Big
APP_
|
— |
Mcu Fwd NME Afail
APP_
|
— |
Mcu NME Amsg UD Pinvalid
APP_
|
— |
Navx 5 Cfg Failed
APP_
|
— |
Ubx Error Reported
APP_
|
— |
Unexpected NME Amsg
APP_
|
— |
Wheel Tick Invalid Src
APP_
|
— |
Wheeltick UAR Tfault
APP_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of APP_w286.