Horn high frequency ?

Long time browser here. First post. This problem is on my 04 Sequoia.

High frequency horn not working (passenger side). I've switched the low frequency to the high with no success. I've also replaced the horn with a use junkyard unit. I've checked for pitch wires cant seem to find any. Only having the low frequency horn is embarrassing sounds worst than a golf cart lol.

 

Welcome. You've tested both horns by powering them directly from the battery? Is there a fuse for each? Relay perhaps? Check both under hood fuse panel boxes as well as interior fuse panel.

https://www.tundras.com/threads/horn-relay.79740/

 

Thanks for your response. I have not tested the high frequency horn from the battery. The low frequency horn works when steering wheel is pressed. I would think both horns would be on the same wiring harness/relay. I don't think its a clock spring issue due to one horn working.

 

I believe that both horns operate off a single circuit. If one of them doesn't work it should be as simple as the wire between them, and/or a unit failure.

 

This is my understanding on my ‘06. Each horn itself is grounded to the rad support. Single power feed to driver horn, with jumper daisy chained to the passenger horn.

 

Exactly!

 

When testing the new horn I never mounted it. After installing the junkyard horn and mounting it. I now have both horns. I never grounded the new horn, SMH!! Thanks for everyone help. Some times it’s literally the simplest things.