Help with Code 3 3050 undercover siren.. need it fixed

[localhero800]

I have a code 3 3050 ( same as 3000 just with air horn, wail, yelp). It is in my 1997 GMC SUBURBAN( main POV) and just recently the Yelp quit working.. i hate just running wail up to an intersection.. i bypassed the switches and directly to the box, i couldnt get it to work.. so its not a wiring problem. Has anyone had this problem?? how did you fix it??

 

[dustymedic]

I can't remember the color coding, but this is how the circuit works: Power travels from the amp to the switch's center post, this post has a jumper between the left & right center posts. When the switch to flipped to Wail, one screw post on the opposite side is energized to produce the wail sound. When the switch to flipped to yelp, the BOTH posts on the opposite side are energized. There should be a jumper from the wail post to the same side yelp..Check all these contentions on the switch plus on the Amp. The below diagram shows how everything is hooked up, but the colors of the wires may be wrong. When I had a 3050, the jumpers were built into the switch, I don't know if it is still that way...


[Broken External Image]:http://i161.photobucket.com/albums/t207/dustymedic/wiring.jpg

 

[localhero800]

Yeah.. i checked the switch.. it used to work fine.. and one day it didnt.. no pop, no smoke.. nothing.. just wail and airhorn.. i pulled it out of the truck and bench tested just the unit.. no switches to mess with, and just the wail, and the airhorn worked..

 

[localhero800]

any other ideas??