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pjh

Member Since: 23 Nov 2010
Location: West Yorkshire
Posts: 126

2011 Defender 110 Puma 2.4 USW Orkney Grey

Horn

Hi,

It's a good while since I was last on here!

Defender failed it's MOT due to the horn not working (nothing, not even a squeak!).

I've searched past threads and can confirm:

1. It's not the fuse - both interior lights and headlight flasher are ok.
2. There is power to the switch.
3. If you press the key fob with the doors open, the horn sounds (seems to be from the nearside)

Questions:

Its has two horns, one in each wing? Which one is the low note?

Does the alarm have a separate sounder?

I can't remove the headlights (due to LED indicator and sidelights being fitted from behind) is the easiest way through the inner wing?

Any help gratefully appreciated.

The vehicle is a late 2011 2.4TDCi.

Many thanks,

Peter Defender 11MY USW

20th May 2019 7:53pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 16876

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

You will have two horns of different pitches, one by each headlamp (the little grill by each headlamp is directly in front of the horn). These are the ones which (should) sound when you beep the stalk switch.

The alarm will either have its own horn or a battery-backed sounder (BBUS), these are located in the vicinity of the n/s headlamp. Whichever of these you have should sound at the same time as the normal horns if the alarm is activated.

It sounds as though both your main horns have failed, or you have a power issue.

Access to the horns is going to be really difficult if you can't remove the headlights, I'm afraid.

20th May 2019 8:40pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

fuse 3 in the driver under seat fuse box

20th May 2019 9:51pm

jeffersj

Member Since: 23 Jan 2015
Location: Near Preston
Posts: 431

1996 Defender 90 300 Tdi HT Bronze Green

Try separate power source to the horns, they fail regularly and are cheap to replace, Jeff
Ex 1968 Series 2A
Ex 90 TD5
Ex D3
Ex D4

21st May 2019 8:24am

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge

21st May 2019 9:14am

pjh

Member Since: 23 Nov 2010
Location: West Yorkshire
Posts: 126

Thanks, Dorsetsmith, that's really helpful. Much appreciated.

Do you know where the earth point is located? I wonder if that is my problem given that both horns have packed up at the same time.

Many thanks,

Peter Defender 11MY USW

21st May 2019 4:46pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

plug C1266-3 pin 3 ground for horn / plug C1264-3 pin 3 ground for horn

and earth header

Click image to enlarge

21st May 2019 5:55pm

pjh

Member Since: 23 Nov 2010
Location: West Yorkshire
Posts: 126

Dorsetsmith, you are a star! I'd have never found that!

Many thanks,

Peter Defender 11MY USW

21st May 2019 7:15pm

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