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DISCO3.CO.UK > Tips & Tricks

Getting the alarm to use the horns
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Chris200100
 


Joined: 22 Mar 2006
Location: Nr Cardiff
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Wales 
Getting the alarm to use the horns

Here's how to make the alarm system use the horns not the battery back up sounder.

This guide is for a RHD D3 for LHD everything is on the other side of the D3

1. open the bonnet and open the left hand box see pic



2. Locate the alarm sounder, its just behind the ABS module and to the left of the brake servo (It has volvo on it)

3. On the alarm sounder there's a plug with three wires coming from it. You need to disconnect this (see pic), It is fiddley and I used a small flat blade screwdriver to remove it. Then just tuck it away.



4. Once you have done the above the alarm system defaults to the horns.
To test lock the car give it 30 secs and then open the passengers door manually with the key this will set the alarm off.
Post #83671Fri Sep 08 2006 10:20am
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10forcash
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United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt Silver

Nice one Chris! Thumbs Up
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Post #83674Fri Sep 08 2006 10:22am
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AndrewS
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England 2007 Discovery 3 TDV6 HSE Auto Rimini Red

Cool now I should be able to really pi** my neighbours off when the alarm goes of every 2 hours or so.

Well done Chris Wink
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Post #83676Fri Sep 08 2006 10:31am
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DG
 


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United Kingdom 2006 Discovery 3 TDV6 S Auto Zambezi Silver

Well done Chris Very Happy

Good golly ...it works too !!
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Post #83681Fri Sep 08 2006 10:45am
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dylansdad
 


Joined: 04 Apr 2006
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United Kingdom 2005 Discovery 3 TDV6 HSE Auto Zambezi Silver

FAN-BLOODY-TASTIC!

Very Happy
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Post #83683Fri Sep 08 2006 10:47am
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SN
 


Joined: 03 Jan 2006
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England 2006 Discovery 3 TDV6 S Auto Buckingham Blue

Simplest change ever - marvellous!

Can I suggest you tape up of otherwise cover the end of the plug to avoid any 'wetness' down the track causing a short too?
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Post #83694Fri Sep 08 2006 11:28am
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lookatmema
 


Joined: 24 Aug 2006
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Scotland 2006 Discovery 3 TDV6 S Auto Java Black

So what the Censored is the pathetic sounder for Question Question Question

I thought it was a backup. But backup to me means if the battery is tampered with, then and only then does the system use the backup sounder.

Is this too simplistic Question Evil or Very Mad
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Post #83704Fri Sep 08 2006 12:01pm
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DrLex
 


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Iceland 2005 Discovery 3 TDV6 S Manual Cairns Blue

Excellent - many thanks, Chris!
Can't wait to fit a twintone Hella job... Twisted Evil
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Post #83709Fri Sep 08 2006 12:59pm
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10forcash
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United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt Silver

Not all markets have battery backup or tilt switch built into the sounder...
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Post #83730Fri Sep 08 2006 2:03pm
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IanD
 


Joined: 11 Mar 2006
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France 2006 Discovery 3 TDV6 HSE Manual Chawton White
Re: Getting the alarm to use the horns

Su-'kin-perb!!
Chris200100 wrote:
This guide is for a RHD D3 for LHD everything is on the other side of the D3


So on a UK car, the battery is on the other side is it?

Why change everything round under the bonnet like that? Surely a few extra lengths fo cable to the steering column wouldn't make that much difference.
Post #83732Fri Sep 08 2006 2:08pm
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Mossy
 


Joined: 01 Jul 2005
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United Kingdom 2006 Discovery 3 4.4 V8 HSE Auto Zambezi Silver

Thank you Chris - a good excuse to work on the car this weekend. Thumbs Up
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Post #83735Fri Sep 08 2006 2:12pm
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simkna
 


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United Kingdom 2006 Discovery 3 TDV6 S Auto Rimini Red

10forcash wrote:
Not all markets have battery backup or tilt switch built into the sounder...


So does that mean by unplugging it we lose tilt and battery backup as well?

Si.
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Post #83740Fri Sep 08 2006 2:25pm
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10forcash
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United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt Silver

Yes.... if we have it in the first place Confused I can't check part numbers from my present location but i'm fairly sure that battery back up and tilt part number ends in 50, non battery and non tilt ends in 40...
That said, the choice is:-
Hear the alarm when someone attempts to break in (or you get a roof spider in the car) but live without a battery backed up sounder and tilt sensor (assuming you have these options in the first place)

Leave it as it is, secure in the knowledge that should some scroat with a 20 tonne crane manage to lift yer car off the drive or get in and chop the battery cables, that the alarm will still be merrily deafening precisely no-one Thud

Yes, it's a crap state of affairs, probably down to some euro-meddling Rolling Eyes as I said, it's market specific, not model specific and I'm fairly sure that the UK market has the plain old sounder with no battery or tilt sensor
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Post #83747Fri Sep 08 2006 2:33pm
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10forcash
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United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt Silver
Re: Getting the alarm to use the horns

IanD wrote:
So on a UK car, the battery is on the other side is it?

Why change everything round under the bonnet like that? Surely a few extra lengths fo cable to the steering column wouldn't make that much difference.
Ian,
It's a bit more than that, take both covers off and take a look Wink
on the drivers side (whichever side that is) you have:-
ABS module and actuator
Brake servo & resovoir
steering column

On the passenger side you have:
Battery
BJB
Engine ECU
Another ECU (can't remember which Embarassed )

To me, 'mirroring' everything over makes most sense...
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Post #83751Fri Sep 08 2006 2:39pm
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captain_sugar
 


Joined: 05 Sep 2006
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Czech Republic 2005 Discovery 3 TDV6 HSE Manual Rimini Red

10forcash wrote:
That said, the choice is:-

Hear the alarm when someone attempts to break in (or you get a roof spider in the car) but live without a battery backed up sounder and tilt sensor (assuming you have these options in the first place)

Leave it as it is, secure in the knowledge that should some scroat with a 20 tonne crane manage to lift yer car off the drive or get in and chop the battery cables, that the alarm will still be merrily deafening precisely no-one


Here some measurements:
1) surrounding sound of a quit environment WITHOUT traffic - only the distant rumour af a far away road (2km) and some dog barking (0,5km): +/- 45dB
2) disco Alarm going of: 70-75dB
3) Disco Alarm going of with the hood open and the plastic cover removed: +/-120dB
4) Disco horns +/- 105dB

It is clear that the alarm, max 75dB will not exceed the noice level in for example a city!

at your service.
Post #83764Fri Sep 08 2006 3:11pm
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