An unexpectedly large position adjustment was done for the motor indicated by the alarm: boom, tower, wheels, telescope, arm or nozzle. The detection limits are different for the different motors.
Troubleshooting
All
Check that the function has been initialized correctly before starting
Tower and arm
Check that the clutch has not slipped
Wheels
Check that the wheels have not slipped
Check that the markers have been correctly mounted
Check that no other magnetic objects affect the magnetic marker switch