Flashing Oil warning light

Has anyone had this issue: Oil warning light comes on & flashes 10 times & then off for 3 seconds & then 10 more flashes (Flash is like a turn signal light flashing).... does this w/engine off & ignition key to ON position as well as when engine is running, and never quits until you turn off key or engione. Appears to be some kind of sensor warning signal as opposed to being related to Oil level. Called Yamaha Dlr Serv.dept- they don't know what it is,suspect Fuel injection sensor issue. If anyone has had this issue what was it & what was the fix? Thanks in advance Mike