darelldd
Posts: 193
Joined: Wed Apr 21, 2010 1:52 pm
Delivery Date: 28 Jan 2015
Location: Nor. Cal
Contact: Website

Re: DIY Horn Upgrade Mod - Updated Jan 12

Thu Feb 05, 2015 8:53 am

OrientExpress wrote:If you replace your stock horn with one(s) that don't use their case as ground, it does not matter which connector on the horn is the + or the - connection.


Yup, good bit of knowledge. Alas, not only do my new horns have a case ground, but I doubled-down. I'm a huge fan of good ground, and proper connections. I made good and sure that I had this thing robustly wired incorrectly. It's why I buy my fuses in bulk.

Best part of the project is when my wife strolled through the garage and asked if I figured it out (yes, in THAT tone with THAT expression). I just happened to have my hand on the horn button. Moments later, she landed like a cat back on earth.

I now give good horn.
Darell, the EVnut >http://evnut.com<
Email me: Domain is gmail.com. Name is darelldd@. Really. I hate PM.
2011 while SL with Chademo... new to me in 2015.

GlennD
Forum Supporter
Posts: 1123
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 Jul 2013
Leaf Number: 410357
Location: Anaheim

Re: DIY Horn Upgrade Mod - Updated Jan 12

Thu Feb 05, 2015 10:48 pm

I was prepared to upgrade my horn like the RAV4 EV people did. To my delight, my "B" has a real horn. It is a simple mod that I did to both my Leaf's but Mercedes Benz already had a real horn! No meep for me.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist

darelldd
Posts: 193
Joined: Wed Apr 21, 2010 1:52 pm
Delivery Date: 28 Jan 2015
Location: Nor. Cal
Contact: Website

Re: DIY Horn Upgrade Mod - Updated Jan 12

Thu Feb 05, 2015 11:02 pm

That's not a Rav4 horn mod! This is: http://evnut.com/rav_horns.htm

Youngsters these days...
Darell, the EVnut >http://evnut.com<
Email me: Domain is gmail.com. Name is darelldd@. Really. I hate PM.
2011 while SL with Chademo... new to me in 2015.

eeyore124
Posts: 2
Joined: Wed Jan 18, 2012 7:19 am
Delivery Date: 13 Jan 2012
Leaf Number: 7058

Re: DIY Horn Upgrade Mod - Updated Jan 12

Sun Mar 22, 2015 9:14 am

I have a 2012 Leaf. I have removed the bottom liner, and now there is a plastic part still blocking access the horn area.
I have removed the bolts and plastic plugs attaching it and I still can't remove it. From reading other post no one
mentioned anything about this part, they all just removed the bottom liner and got access to the horn area. Was this
something unique to the 2012 models ? Any idea how to remove it ?

At this point I'm going to try and get replace it from the top. I can see it but not sure about being able to get the bolts that
hold the horn. When I can figure out how to remove the bottom plastic part I will go at it again.

Joe

User avatar
Stanton
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Posts: 1877
Joined: Thu Feb 03, 2011 10:56 am
Delivery Date: 01 Sep 2011
Leaf Number: 7458
Location: Plano, TX
Contact: Website Twitter

Re: DIY Horn Upgrade Mod - Updated Jan 12

Sun Mar 22, 2015 10:38 am

eeyore124 wrote:At this point I'm going to try and get replace it from the top. I can see it but not sure about being able to get the bolts that
hold the horn. When I can figure out how to remove the bottom plastic part I will go at it again.
Joe


AFAIK, the 2011/12 models are probably easier to do thru the top (that's what I did). Small hands help, but patience is a virtue.
2011 Blue Ocean SV w/floor mats & window tint
12v LiFePO4 battery & FIAMM 74100 horns
Wet Okole seat covers (front)
Tor's low-power heater mod
2013 sun visor
3G modem upgrade
L2 EVSE Upgrade
Battery Pack replaced (Rev E) @51 months and 41k miles

GlennD
Forum Supporter
Posts: 1123
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 Jul 2013
Leaf Number: 410357
Location: Anaheim

Re: DIY Horn Upgrade Mod - Updated Jan 12

Sun Mar 22, 2015 10:52 am

Stanton wrote:
eeyore124 wrote:At this point I'm going to try and get replace it from the top. I can see it but not sure about being able to get the bolts that
hold the horn. When I can figure out how to remove the bottom plastic part I will go at it again.
Joe


AFAIK, the 2011/12 models are probably easier to do thru the top (that's what I did). Small hands help, but patience is a virtue.

I did my 2012 from the top. I did my 2013 Leaf from the bottom. The year matters.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist

eeyore124
Posts: 2
Joined: Wed Jan 18, 2012 7:19 am
Delivery Date: 13 Jan 2012
Leaf Number: 7058

Re: DIY Horn Upgrade Mod - Updated Jan 12

Sun Mar 22, 2015 12:10 pm

Yes I just finished replacing the horn, I did it from the top. It's tight from the top but very doable.
Now I have a horn that can actually be heard :D

Anyone that has a 2012 Leaf don't even try from the bottom.

Joe

chuck101
Posts: 30
Joined: Sun Apr 05, 2015 6:17 am
Delivery Date: 05 Apr 2015
Location: Ft. Walton Beach, FL

Re: DIY Horn Upgrade Mod - Updated Jan 12

Sun May 03, 2015 7:26 am

eeyore124 wrote:Yes I just finished replacing the horn, I did it from the top. It's tight from the top but very doable.
Now I have a horn that can actually be heard :D

Anyone that has a 2012 Leaf don't even try from the bottom.

Joe


I wish I would have seen this before taking the underside of my 2012 apart...... Got mine replaced from the top.
2012 Leaf

powersurge
Posts: 581
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: DIY Horn Upgrade Mod - Updated Jan 12

Fri Nov 13, 2015 6:44 pm

I have a 2015, and doing it from underneath was the only way to go. I used an aluminum repair bar from ace and a WOLO BAD BOY horn from Harborfreight. Works great after 6 months of use...

sundays
Posts: 3
Joined: Wed Mar 02, 2016 8:53 am

Re: DIY Horn Upgrade Mod - Updated Jan 12

Wed Mar 02, 2016 9:21 am

Hi there,

I've tried following the instructions for an European 2014 model (Tekna) and went underneath.

However, I stumbled into the new honeycomb element and couldn't find an easy way to remove it. It seems to be very well attached to the bumper and front cross member.

That's when I tried to go from above and, to my surprise, it was much easier!
The cooling reservoir (?) is no longer in the original position. It is now on the other side of the car. Here's a picture (sorry for the low quality and light!):

Image

After removing the plastic covers (hold by lots of plastic bits), you can find another plastic cover which can easily be removed after removing two plastic nails at the front and pressing the two buttons at the back (marked in red in the next picture):

Image

Then, you have clear access to the horn:

Image

The picture shows the new horn installed.
Mine is still not working because I'm figuring out the wiring (I'm waiting for a multimeter so I don't blow any fuse). Apparently, you need to use both wires from the OEM horn and I was trying to use the ground from the chassis and horn bracket (without success).

There two other curious facts:

1 - There are actually two horns on this Leaf! Even after disconnecting this first horn, I could still honk it. There's another one on the other side of the car and the access is about the same. The one I replaced seems to be the "low" tone while the other one, on the right-hand side of the car, seems to be the "high" tone.

2 - The OEM horns are "tunable", using a philips screwdriver:

Image

I'm not sure if we can simply tune down the standard horns to improve the sound, instead of replacing them altogether.

I hope this helps other owners with more recent models.
Last edited by sundays on Thu Mar 03, 2016 4:02 am, edited 1 time in total.

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