mdeloug Posted June 16, 2017 Share Posted June 16, 2017 I wanted to replace the "Meep Meep" single electric horn with a dual (snail) twin-tone set. So I bought them, and the relay that I apparently needed. So after reading on the interwebs about what acrelay is and how it works I did the install. Made new brackets to fit the two horn units where there was previously only the one. Installed the relay under the front seat. So wiring-wise; I took the hot wire (from the horn switch) off the +ve terminal of the old horn and wired it to pin 86 on the relay. From relay pin 87 I ran to the +ve terminal of the new horn(s). I wired relay pin 30 direct to the battery via a 5A fuse and wired a jumper from pin 30 to pin 85 Voila!! ......except that, to my dismay, I've gone wrong somehow. Here's what I've now got: With the ignition turned OFF, the horn sounds (magnificent) when I press the horn button. With the ignition turned ON, pressing the horn button plays that Simon & Garfunkel classic, "The Sound Of Silence"...... I've messed up somehowbut I am having trouble thinking my way out of this. Can anyone help by any chance?? Thanks /Martin Link to comment Share on other sites More sharing options...
mdeloug Posted June 16, 2017 Author Share Posted June 16, 2017 Hhhhmmmmm I found the problem, and it's fixed. The issue was the jumper. I removed it from pin 30 and instead I connected pin 85 to ground. It immediately fixed the entire problem. I HAD in fact followed the wiring diagram that came with the horns correctly. That diagram showed the case of a horn switch on the cold side of the existing horns, hence the jumper from 30 to 85. I found a wiring diagram online that showed 85 to ground, and it immediately made more sense to me. I tried it with s test wire and it immediately worked correctly. Apologies for posting and not researching thoroughly enough to begin with. Thanks /Martin Link to comment Share on other sites More sharing options...
Beemer Posted June 16, 2017 Share Posted June 16, 2017 I can't help but the Simon & Garfunkel reference made me laugh, good job! Hope you feel a little better knowing you accomplished that at least. GL! Beemer Link to comment Share on other sites More sharing options...
Sweeps Posted June 18, 2017 Share Posted June 18, 2017 At a boy Martin. Now the kids at the ice cream shop will truly fear your horn. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.