Originally Posted by SteveH
I have never found the horn relay in my '78 FJ - but I did find one on my '76 FJ55.
If anyone finds the location, please photograph it. To try to locate it, I disconnected both horns and never heard a clicking sound from under the hood, which would help you find the relay.
Thanks Steve. I'm wondering if maybe I don't have one either. I do have 2 wires to the horn locations on each side. I also have a socket up on the firewall and I have a relay in my box of stuff that looks like it would fit. It's not marked. I thought my wiring harness was '78 FJ40 and it may be. We'll see. I can post up pics.