I searched MUD and found a link to a really nice write up on FJ40 horns
That said, before I go off on a wild goose chase I figured I'd ask you all if maybe this isn't just a simple issue.
Background...My horns worked fine on my FJ40, until I started monkeying with stuff that is
I installed my Grant Security System and new Grant steering wheel, replacing my old Grant wheel. I followed the directions to the best of my ability and things seemed to go well. Had some issues with the roll pin for the signal cancellation but I think I got that figured out.
Anyway, I get everything installed, connect the battery back up and hit the horn and all I get is a week "brrrrrrrp" or just a click/thunk noise. WTF? Recheck the directions, connections, etc. etc. and nothing. I disconnect one horn and get a nice loud BLAST. Doesn't matter which horn is connected alone (high/low tone), I get the horn, but connect both at the same time and I get squat.
Any hints on what might be a simple solution to my problem?