BlownZ51

I have a 72 that I'm currently restoring and my horn is not functioning. I have no power to the green wire that goes to the horn when you press the button on the steering wheel. Has anybody had this issue or maybe know of a flow chart of where to start testing to determine the problem?

dan1495

Have you checked the horn relay? I had the same issue with my 72. I disassembled the horn relay, cleaned the contacts and the horn started working. I verified that the horn was good by running 12 volts directly to the horn.

Iceaxe

Here is the troubleshooting guide I used to solve my horn issues. It's easy to follow and understand.

http://www.hunt4cleanair.net/Article..._Diagnosis.pdf

FireballXL5

Mine on my 81 miraculously started working after replacing the rag joint... Just sayin

Dunno if that makes it ground related... Or just jostling the column around helped it out...

7T1vette

The ragjoint provides 'ground' for the horn electrical needs; +12vdc power is supplied by the horn relay and wiring to the horn button/switch.

BlownZ51

I have not checked the relay. I wanted to start there to first confirm it was good. I wasnt sure how to check its functionality. I see the diag article that Iceaxe posted should be most helpful with checking the system. I will dig in and let you know what I find. Thank you all for the help!

spdrcr29

Just what he said. If the horn works after jumping 12v to it, then work your way back from there to see where the issue is...

ALLEGRO

Amazon or Ebay

C6-CYa

I'd bet money that they fixed it within the past nine years!!!!