I had a continuous alarm start sounding under the dash of my 1998 nitro bass boat. It has a 75 hp merc. Oil injected. Oil reservoir is full. Impeller is new with a hard steady flow. This alarm is coming from under my console not on the motor. When I stick my head under there, I can't tell where it's coming from it is at that high of a pitch. It will go off with the key just turned on, motor doesn't have to be running. It will sound even when motor isn't hot.