Need help checking overtemp buzzer - 90 hp

Hvymtl

Petty Officer 2nd Class
Joined
Jun 6, 2011
Messages
147
I have a 1997 90 SPL. I suspect the boat going into limp mode because of overheating but get no buzzer alarm.

No beeeep when key first turned on

I can ground the brown wires from either head sensor (going back to harness) and nothing.

I can disconnect horn at plug and apply 12V and horn works,

Is there a place I can check at the key switch, or someplace else?
 
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