'sensor' flashes 3 times

[adrianlacy]

Hi guys.
have a new 2009 speedster 150, 255hp
this arvo went to do some maintenance and it won't start. with dess key in place the display flashes 'sensor' 3 times (no error number appears) then back to compass direction. pressing start button does nothing at all - fuses all ok.
do i need the dealer or a simple thing to check?

[adrianlacy]

by the way .... the start switch light is illuminated all the time .. with / without dess attached ... can't remember if this is normal but assuming its not? maybe a stuffed switch? if so ... why the 'sensor' message?