200 HPDI, No Warning Buzzer on Startup

[aohlmeyer]

My 2007, 200 HPDI used to sound the warning buzzer for a few seconds upon startup, at which time the warning lights would also light up then go out. The buzzer recently stopped sounding on startup and I've noticed that the temp light does not light up; the oil light does. I've tested the buzzer and it appears to be working fine. I tested the temp lamp and it too was ok. I'd appreciate any advice anyone might be able to offer.

Thanks!

[boats.net]

Only the twin engine key switch panel has a buzzer come on when first turn key on, it's a module on switch panel assy. The single engine key switch panel wont sound buzzer.