APS_w138 — Gps Com Issue
Full alert identifier: APS_w138_gpsComIssue
Alert description
Autopilot Processor Secondary (APS) detects communication issues with the GPS receiver.
Potential impact
Navigation and Autosteer will be temporarily broken.
Set condition
APS detects a fault in GPS communication.
Clear condition
GPS receiver communication is re-established.
Signals to check
These diagnostic fields are associated with APS_w138. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
NME Ainvalid Checksum
APS_
|
— |
PFLASH Read Error
APS_
|
— |
PFLASH Write Error
APS_
|
— |
UAR Tbus Full
APS_
|
— |
UAR Tframe Error
APS_
|
— |
UAR Tparity Error
APS_
|
— |
UAR Trx Fifo Overflow
APS_
|
— |
UAR Trx Fifo Underflow
APS_
|
— |
Show 22 more fields
| Signal | Unit |
|---|---|
UAR Ttx Fifo Overflow
APS_
|
— |
UB Xrx Frame Too Big
APS_
|
— |
Baudrate Mismatch
APS_
|
— |
Cfg Buf Null
APS_
|
— |
Empty Valid NMEA
APS_
|
— |
Esf Wt Msg Timeout
APS_
|
— |
Gps Buffer Overflow
APS_
|
— |
Gps Cfg Id Fail
APS_
|
— |
Gps Cfg Nack
APS_
|
— |
Gps Read Cfg No Response
APS_
|
— |
Gps Set Cfg No Ack
APS_
|
— |
Invalid Ascii NMEA
APS_
|
— |
Invalid ID
APS_
|
— |
Mcu Dbg Msg Invalid
APS_
|
— |
Mcu Dbg Msg Too Big
APS_
|
— |
Mcu Fwd NME Afail
APS_
|
— |
Mcu NME Amsg UD Pinvalid
APS_
|
— |
Navx 5 Cfg Failed
APS_
|
— |
Ubx Error Reported
APS_
|
— |
Unexpected NME Amsg
APS_
|
— |
Wheel Tick Invalid Src
APS_
|
— |
Wheeltick UAR Tfault
APS_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of APS_w138.