Why is my horn not working?
2012 Mazda 3i GT, horn went on fritz two months ago and will not sound. Don't have the service manuals to find where relays and switches are to diagnose.
jcost40 first check the horn to make sure that it is working. remove the plug and briefly attach 12V positive on the contacts and negative on the ground. After that check the fuses and the relay
Let us know what you find.