Engine Alarm Buzzer

[Uwe]

I have Sea Ray 300, Mj 2002 wih 5.0 MPI.
Normally if I switch on ignition with the switches on dashboard, the engine alarm buzzer sounds for 1-2 sec.
This is just to proof that the buzzer is OK and system is working.

Port engine alarm is sounding normally but starboard engine buzzer is not sounding anymore
I have checked the buzzer, but nothing can bee seen.
I have checked 12 V DC on buzzer but no 12 V is arriving to the buzzer when I switch on ignition.
Does anybody have an idea where else to check?

The Sea Ray wiring diagram is not really very helpful so far.


I want to be sure my engine alarm system and buzzer is working properly.

 

[JimG]

According to your schematics, one side of the buzzer should be powered from the ignition circuit and the other side is pulled to ground at pin 8 of connector F/M36 by two sensors; oil pressure and water temperature. You could pull pin 8 to ground with ignition on and see if buzzer sounds or try swapping the buzzers to eliminate the buzzer itself.

 

[Uwe]

Hi, Jim,
thanks.
Where can I find pin 8 respectivly connector F/M36?
And how about gear oil level sensor?

 

[JimG]

That connector set should be at the engine... pin 8 should have a TAN/BLU wire. I would have also thought the gear oil sensor would be included.