Need help installing hella horns

[U.S.C]

I am yet to find out if I need a wiring harness when stitching to hella horns. I mean it seems like it needed but I have no idea what one I would need does anyone know ? Or does anyone have a write up on this ?

Sponsored

 

[Jeffers]

You probably don't need a wiring diagram, but they always help. And if we had one it would be easier to for us to help you on the forum. Since we don't have one you'll need to do some electrical tests. You'll need to find out if the stock horn is powered normally +12v and ground is provided when you press the horn button. Or if +12v is only provided to the horn when press the horn button. Once you know that, you can wire a relay so that it's actuated when you press the horn button. Then wire the load side of the relay to power the horns when the relay is actuated.
You can find relay wiring diagrams online to give you a picture of how to wire the horns & relay.
Good covid project. And I think auto parts stores are open to buy your stuff.

 

[bzero13]

You can probably find what you need in here.

https://www.civicx.com/forum/threads/college-hills-honda-horn-upgrade.36426/

 

[MarshX]

I am yet to find out if I need a wiring harness when stitching to hella horns. I mean it seems like it needed but I have no idea what one I would need does anyone know ? Or does anyone have a write up on this ?

I bought this from College Hills Honda. Direct plug and play for the Hellas. I only wired the low and not the high since i didn’t feel like disconnecting the battery at the time lol

 

[shoegazer]

Post the model numbers for the Hellas. If we can confirm that, together, they draw less than 10 amps; you shouldn't need an additional relay. After that... it's more of a adapter/connecting wires situation rather than a math problem.

You *could* technically cut the connector off of the horn power wires and connect them directly to the first horn (then piggyback to the second). But it's so much easier to buy the CHH adapter, attach the piggyback connectors to it, and start from there. This makes it easier to switch to a different horn later or return to stock if needed.

 

[latole]

IMO in any horn mods you must know how much current ( amp ) the new horn need.
12 volts is one thing, ampere is another thing.
If new horn need too much current you may damage something in you car. You must use a relay to be safe.

 

[Jeffers]

IMO in any horn mods you must know how much current ( amp ) the new horn need.
12 volts is one thing, ampere is another thing.
If new horn need too much current you may damage something in you car. You must use a relay to be safe.

Yup, without a wiring diagram it's best to play it safe.
Some stuff is switched with solid state relays on body control modules. Burn one of those and you're into replacing the module. Or replacing components on the module.
I have only a 50% success rate with doing that.

 

[latole]

Number 85 and 86 must receive original Honda ( or any car ) horn wires.
Relay coil ( 85/86)need very low current wich can't hurt a car horn button or circuit.

 

[FC3L15B7]

I am yet to find out if I need a wiring harness when stitching to hella horns. I mean it seems like it needed but I have no idea what one I would need does anyone know ? Or does anyone have a write up on this ?

Why are you screaming for help over something so mundane? If you put a proper topic up, you'll get an answer faster than attracting people trying to help you because they think your car is on fire.. I normally ignore this kind of thing, but mods should just remove this thread for being bait.

 

[U.S.C]

That’s good

Why are you screaming for help over something so mundane? If you put a proper topic up, you'll get an answer faster than attracting people trying to help you because they think your car is on fire.. I normally ignore this kind of thing, but mods should just remove this thread for being bait.
[/

Why are you screaming for help over something so mundane? If you put a proper topic up, you'll get an answer faster than attracting people trying to help you because they think your car is on fire.. I normally ignore this kind of thing, but mods should just remove this thread for being bait.

lol yet you clicked on it and wasted your time writing on it. Haha ?

 

[latole]

USC, what are you thinking about our suggestions ? Its help you ore not ?

 

[Brisco]

You don’t need one for the hella horns. I know 30 guys that have done it without a harness.

 

[bcrichster]

Number 85 and 86 must receive original Honda ( or any car ) horn wires.
Relay coil ( 85/86)need very low current wich can't hurt a car horn button or circuit.

Necessary? No. Advisable? Absolutely, just wire the the horn harness to the relay (#85 & 86) especially if ya wanna make reverts easy af. Plus, not using a relay may have long term damages to the $BCM I used:
- 1 horn harness,
- 1 relay harness, wired like illustration above
- 1 relay (included with HellaHorns box)
- 90° splice connectors, improve space
- in-line fuse holder
- 10A fuse
- marine shrink tubing.

 

[latole]

Necessary ?

I don't know how much current Honda steering wheel switch contacts can hold.
Better to read with amp meter

Any switch can hold too much current for a limited time.

 

[shoegazer]

+1 for the result.

And I wanna' hear the horns o' plenty.

Sponsored