Alarm/Warning
AP heading data missing
AP Nav data missing
AP off course
AP position data missing
AP rudder data missing
AP wind data missing
Possible cause
No data from selected compass.
Navigation data from Plotter/ECS
missing.
Vessel heading is outside the set
off course limit. May be caused by
extreme weather conditions, and/or
too slow speed.
Position data from the GPS is
missing.
Rudder angle signal to autopilot
computer is missing.
Missing or invalid wind data.
Recommended action
• Select a different compass source
• Make a source update
• Check cables and connections
• Check that route is activated on Plotter/MFD
• Check device list for valid navigation source
• Try a new automatic source update
• Check cables and connections
• Increase boat speed, if possible, or steer by hand
• Check steering parameters (Rudder, Autotrim, Seastate filter)
• Increase response/rudder value
• Check that the GPS antenna has a clear view of the sky
• Check device list for valid position source
• Try a new automatic source update
• Check cables and connections
• Check the source selection and that the autopilot computer
commissioning has been completed
• Check cables and connections
• If missing sensor is a CAN device, check network connection
• Check cables and connections