OK I know I am suppose to only post in the sport boat area but I know the skis are very close and the boat area is a lot less active any advice would help. 03 Sportster 4-tech n/a 155hp

Hey guys need help again??? My warning buzzer that will warn dogs 10 miles away stays on all the time? My owners manual says overheat alarm but no light and even before start up when cold. You can here the all OK beeps threw the noise. Unplugged the beeper and can here a slight buzz coming from the engine compartment fuse block. Runs fine any Ideas before I get out the check book at the dealer. Also any one know where to get a wiring diagram on my boat? Thanks