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Horn

2244 Views 25 Replies 9 Participants Last post by  charliepie
Anyone else used there C-HR horn yet?

I used it earlier for the first time to encourage a cat to get out the road & nearly died of embarrassment.

It sounds like something Noddy would have on his car 馃ぃ

Anyone upgraded the horn yet as it looks difficult to get at 馃
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There was a post a very long time ago by stadpanzer about getting it up graded at the dealer,
It is not easy to change.. because frontbumper have to be removed to reach the original horn and wiring.
When removed, it is easy job to swap horn or mount a Stebel Nautilus (like i did).. only had to upgrade the fuse for +5A higher one. Works like a charm for 5 years already.
Yep, used mine today. I won't be using it again as the Toytown police may arrest me for non-noise pollution!
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Yep, used mine today. I won't be using it again as the Toytown police may arrest me for non-noise pollution!
I was more foolhardy passed Nurses picket line pipped the dam horn and they all burst out laughing.馃ゴ
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It鈥檚 not just the C-HR, my 2019 Corolla touring sport is just the same.

Good news it鈥檚 easy to change as you don鈥檛 need to remove the bumper.
Horn upgrade is on my list of things to do but not until summer time - access doesn't look great on C-HR
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Japan Toyota sells upgrade PIAA horns, they were not available here when I enquired some years ago. It's an easy upgrade though. Remove the plastic tray above the radiator, you should have enough room to fit additional horns. There is a horn relay so uprating the horn to FIAMM electric would be easy and there are plenty of spare threaded holes round the radiator which are suitable to bolt to. Air horns normally take 15 odd amps so I would advise fitting an additional relay. I fitted two additional FIAMM AM80s to the original horns in the Prius, just adding a doubling spade terminal and an earth is the easiest way and uprate the fuse to 20 amps. The original horn is 2.4 amp the FIAMM's are 4 amps each. Most large European cars use these, they are the best after an Air Horn.
Tip if you cannot get the plastic plugs back in the holes because the four lugs have expanded, gently heat them with an heat gun they close back up. Use too much heat and you end up with plastic glue.
I'm doing this upgrade next week after I have the software upgrade done by the garage.
If you wait I'll post pictures and details.
These are the clips, use a thin blade to pop them up, then lift out.
Clips after a bit of heat.
Original Horn doubled up with a FIAMM, bracket trial fit.

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I've got these to fit - be really interesting to see your horn retrofit once you carry it out.



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I fitted those not too impressed, not that loud and one packed up after a year, still have the low note one. Have to see what fits the best, I'll keep you informed.
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I do also have some Bosch twin tones - might take them to work to test them & see which I prefer.
Would need a bit of a clean up & I need to make a short loom as they have a 2 pin connector plug.

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Don't see why they wouldn't be as good as any other new ones. I would think better than PIAA. I just compared my remaining PIAA and it was not as loud as my FIAMM AM80 and it takes 3.25amp the Bosch and FIAMM take 4 amp. You probably could fit them all, that would be much much louder than the MeepMeep from the factory ones.
I've got a Stebel Nautilus truck horn nice deep note that I used to have on my bike with a set of Klaxcar (French) horns 拢9 as good as anything available, not available here at the moment. Used to wake up most drivers, lorry driver swore at me, as the police say at least you know you have been
seen.
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A bit of fun.
C-HR was initially designed as a car for young folks in Asia.
For anyone who visited Asia...I would understand why design a not loud horn! Those guys arguably should have no horns! They use horn way too much!

End of rant!
A bit of fun.
C-HR was initially designed as a car for young folks in Asia.
For anyone who visited Asia...I would understand why design a not loud horn! Those guys arguably should have no horns! They use horn way too much!

End of rant!
Friend has come up with a cheap fix,go to Halfords get air horn can,give to the one in the passengers seat anyone obstructive even folks still crossing zebra crossing when on green fire that out of the window at them it's way better than the mouse squeak on CHR for a horn
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It鈥檚 not just the C-HR, my 2019 Corolla touring sport is just the same.

Good news it鈥檚 easy to change as you don鈥檛 need to remove the bumper.
Bad news I read this as applying to the CHR. No it's not easy on the CHR.
Took the panel off above the radiator and you have a plastic panel shielding everything below it. After a lot of poking and prodding I found the horn, passenger side just in front of the radiator cross member. If you prise up the plastic you can just get to the bolt and if you lasso the horn with some wire (if you drop it there will be a lot of swearing) it looks like the horn wire connector could be long enough to pull up with the horn and get to the connector, not sure about getting it back though as the bolt is fiddly to start back in the thread.
However there are two 6mm threaded holes either side that could easily be adapted to hold FIAMM Bosch or Hella horn type horns.
The plastic panel is held on with 5 plastic pop up clips and two JIS (philips are close, do not use pozi ) screws holding the bonnet rubber/plastic bungs. The panel has small lugs at the front, these go under the plastic front panel with the weather seal strip on.
photos plastic clips and screws rubber/plastic bungs
bolt under plastic cover with foam
screwdriver points to location of horn bolt

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When the icy blast has passed I will try adding horns. The next post I will probably be HOW DO YOU REMOVE THE BUMPER 馃槀 :ROFLMAO: 馃ぃ
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Is this diagram any help?
Shows the horn & also the pedestrian acoustic warning device.

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Yes thanks, looks like standard Toyota placement, I would have thought that the Excel would have two, cost cutting again. Once i get into it I think the pedestrian warning might get a large bee stuck it at the same time :whistle:
Have you got access to the wiring diagram, I was wondering if I could pick up the wire from the horn relay from the fuse box?
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