Horn and brakes same fuse?
07-23-2014, 12:50 AM
#1
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Location: Frankfort IL
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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
07-23-2014, 01:47 AM
#2
Race Director
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.
07-23-2014, 02:54 AM
#3
Pro
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...
07-23-2014, 08:53 AM
#4
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Member Since: Mar 2014
Location: Frankfort IL
Posts: 104
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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.
07-23-2014, 09:08 AM
#5
Safety Car
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.
07-23-2014, 02:41 PM
#6
Race Director
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...
