Horn alarm
Thread Starter
Instructor
Joined: Aug 2020
Posts: 182
Likes: 2
Horn alarm
trying to get the alarm working and it is driving me crazy. passenger side door jam has three wires, one is a ground. the wires go to the relay and flasher as they should. the wires go across to the other door, horn is attched under fender. Key lock has two wires attached going int the engine harness. then there are two leads to the hood sensor. Everything does seem to be attached, but I get nothing. any Help or advise
Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
1.. What year is the car? (consider adding it to your signature so we can see it)
2.. Does the horn itself actually work?
M
2.. Does the horn itself actually work?
M
Last edited by Mooser; Oct 24, 2020 at 06:09 PM.
Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,335
From: North of Toronto - Ontario
75 is out of my bailiwick but most of them work on having power supplied to the circuit via the key and then any of the door switches will ground the other side to make the system go off. On my 72, the key switch will provide 12v to the horn from a constant orange, then on the relay there is a yellow wire that once grounded will sound the horn.
Yours might be the same (ground the yellow at the relay with the system armed)
M
Yours might be the same (ground the yellow at the relay with the system armed)
M
Racer
Joined: Aug 2015
Posts: 373
Likes: 170
From: South Bend IN
This should help, http://repairs.willcoxcorvette.com/1...tem-schematic/
Willcox, doesn't search every question, just trying to help............
Have a Great Day,
Bill
Willcox, doesn't search every question, just trying to help............
Have a Great Day,
Bill
Melting Slicks
Joined: Feb 2017
Posts: 2,380
Likes: 838
From: New York
2017 C3 of the Year Finalist
St. Jude Donor '20- '21
As Mooser stated check to be certain that the horn itself works. They are often corroded due to the location they are placed in and the lack of use. If the horn sounds you now know that its the wiring that needs attention. If it doesn't then you must first get the horn working. They can be repaired. I posted about it a while ago. Ike
Last edited by general ike; Oct 24, 2020 at 09:05 PM.
Melting Slicks
Joined: Sep 2006
Posts: 2,815
Likes: 470
From: Wichita Kansas
Since the horn does not blow, I wonder if you are able to hear a click or something coming from under the jack storage compartment behind the passenger side seat? A click, that is, when you try to set off the alarm. I could on mine, many years ago, and when I replace the horn, it worked. if you test yours and it works, clean up the contacts to the car really good, maybe you will get it to blow.
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