Horn and brakes same fuse?
Thread Starter
Instructor
Joined: Mar 2014
Posts: 104
Likes: 0
From: Frankfort IL
Horn and brakes same fuse?
Hey all. Trying to figure this one out. I've been blowing fuses like crazy. Something happens where the horn sins then the fuse blows, then I have no brake lights. Anyone experienced this? Don't like driving because I never know when my brake lights will work. Could really use a hand here, speed to take a drive to Milwaukee with the wife this weekend and I'd love to take the Vette. Hope I can get some ideas here
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
This is an 81, right? It's probably wired the same as my 78. Horn and stop lights on the same fuse. I had this same issue. One of my horns was dead.
I troubleshooted it by unplugging the horns one at a time. With one horn disconnected, I got a honk. With the other horn disconnected, I could only hear the relay click. So that horn was dead and was drawing enough amps to kill the fuse when both horns were connected. You could also have a short in the wiring.
I had the pair rebuilt by "The Horn Works", they did a great job. Alternately, you can purchase replacements.
I troubleshooted it by unplugging the horns one at a time. With one horn disconnected, I got a honk. With the other horn disconnected, I could only hear the relay click. So that horn was dead and was drawing enough amps to kill the fuse when both horns were connected. You could also have a short in the wiring.
I had the pair rebuilt by "The Horn Works", they did a great job. Alternately, you can purchase replacements.
Pro
Joined: Aug 2013
Posts: 591
Likes: 3
From: Monroe Washington
My horn didn't work til I replaced the rag joint... Either from me completing a ground through the joint... Or manhandling the column when I pulled it back to separate the two for RnR... Could always trace to a ground issue somewhere if it isn't what shark described...
Thread Starter
Instructor
Joined: Mar 2014
Posts: 104
Likes: 0
From: Frankfort IL
This is an 81, right? It's probably wired the same as my 78. Horn and stop lights on the same fuse. I had this same issue. One of my horns was dead.
I troubleshooted it by unplugging the horns one at a time. With one horn disconnected, I got a honk. With the other horn disconnected, I could only hear the relay click. So that horn was dead and was drawing enough amps to kill the fuse when both horns were connected. You could also have a short in the wiring.
I had the pair rebuilt by "The Horn Works", they did a great job. Alternately, you can purchase replacements.
I troubleshooted it by unplugging the horns one at a time. With one horn disconnected, I got a honk. With the other horn disconnected, I could only hear the relay click. So that horn was dead and was drawing enough amps to kill the fuse when both horns were connected. You could also have a short in the wiring.
I had the pair rebuilt by "The Horn Works", they did a great job. Alternately, you can purchase replacements.
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
Don't forget to check the horn relay. Caution; it's always hot from the battery. It could be shorting out inside, so if it's original, just replace it.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
My horn didn't work til I replaced the rag joint... Either from me completing a ground through the joint... Or manhandling the column when I pulled it back to separate the two for RnR... Could always trace to a ground issue somewhere if it isn't what shark described...
