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Greyman110



Member Since: 29 Sep 2017
Location: London
Posts: 327

United Kingdom 
Mystery switch!
OK...This is a long shot but...

I have a switch on the steering column that has power to it but I can't find what it's for!

The dealer had no idea. There's no wiring for external lights that I can see. Nothing happens in the cabin when I switch it on and off.

Before anyone says about tracing it through fuses etc, I'm not that handy around cars and would imagine that if i go prodding near anything electrical, there's a good chance the car will burst into flames! Rolling with laughter

Just thought I'd ask on the off-chance someone has seen something like this before.



Click image to enlarge
Post #659897 27th Oct 2017 3:19pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20294

United Kingdom 
You'd be best to check wire colours first and see if there are any signs of those wire colours elsewhere.
Even then, it's possible they could match but not on the same circuit!

Who ever installed it is to blame for not using an identifiable switch, often those type of switches are for heated seats or minor items on the interior.
Are there any 'accessories' fitted? ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️


Last edited by custom90 on 27th Oct 2017 3:48pm. Edited 1 time in total
Post #659899 27th Oct 2017 3:31pm
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DSC-off



Member Since: 16 Oct 2014
Location: North East
Posts: 1397

United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Aintree Green
It could be wired to anything, it's a common aftermarket switch.
The only way to tell is trace what the wires are connected to.
Are there any non standard electrical items fitted anywhere in the vehicle?
Are there any signs it's had spot lights or work lights fitted before? Holes in the bodywork or bumper, any relays under the bonnet, behind the dash, or in the seat boxes.

It's a bit too obvious to be an immobiliser switch!
Post #659901 27th Oct 2017 3:36pm
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Greyman110



Member Since: 29 Sep 2017
Location: London
Posts: 327

United Kingdom 
It's a needle in a haystack!

Its a 2009 XS. The only after market electrics I can see are the working light that is operated by a switch at the back door, the winch and the stereo. I have a split charge system but I can at least rule that out as I had that done.

The light on the switch indicates when its on so something should be happening somewhere...I'm going back out to go back over the car!!
Post #659903 27th Oct 2017 4:06pm
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ARC99



Member Since: 19 Feb 2013
Location: North Yorkshire
Posts: 1831

United Kingdom 2008 Defender 110 Puma 2.4 USW Cairns Blue
Have you checked the handbook to se if the previous owner made a note of what it is for. Don't make old people mad.
We don't like being old in the first place,
so it doesn't take much to Censored us off.

Richard
Post #659904 27th Oct 2017 4:07pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1763

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
custom90steve wrote:
Who ever installed it is to blame for not using an identifiable switch, often those type of switches are for heated seats or minor items on the interior.


I have 7 toggle switches in a custom centre panel that I installed, and none of them are labelled Laughing

Equally, most of them are pretty obvious when you play with them!
Post #659905 27th Oct 2017 4:10pm
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DSC-off



Member Since: 16 Oct 2014
Location: North East
Posts: 1397

United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Aintree Green
"the working light that is operated by a switch at the back door"

Check that the switch on the column does not also control the work light.
Switch the light on at the back door, then see if the column switch makes any difference.
Try various combinations with both switches.

"The light on the switch indicates when it's on so something should be happening"

No necessarily, the light will come on even if it's not connected to an accessory. IE, if the circuit and accessory have been stripped out, just leaving the switch filling a hole in the dash, but doing nothing.


Last edited by DSC-off on 27th Oct 2017 5:12pm. Edited 1 time in total
Post #659919 27th Oct 2017 5:02pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17337

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
It is the sort of switch that might be fitted to energise a winch isolator.
Post #659920 27th Oct 2017 5:03pm
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DSC-off



Member Since: 16 Oct 2014
Location: North East
Posts: 1397

United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Aintree Green
"might be fitted to energise a winch isolator"
Thumbs Up
Post #659923 27th Oct 2017 5:15pm
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trickster5000



Member Since: 12 Dec 2015
Location: East Yorkshire
Posts: 502

United Kingdom 1989 Defender 90 300 Tdi CSW Arles Blue
Could it be linked to the rear worklight and reverse switch, ie allows you to turn the worklight on or off when in reverse? Matt.

'89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html
Post #659925 27th Oct 2017 5:24pm
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DSC-off



Member Since: 16 Oct 2014
Location: North East
Posts: 1397

United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Aintree Green
That's the thing with modified vehicle electrics, the possibilities are endless if you don't know exactly what's been done.
Post #659926 27th Oct 2017 5:28pm
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Zed



Member Since: 07 Oct 2017
Location: In the woods
Posts: 3254

United Kingdom 2010 Defender 110 Puma 2.4 XS CSW Santorini Black
Ejector seat.
Post #659927 27th Oct 2017 5:34pm
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Greyman110



Member Since: 29 Sep 2017
Location: London
Posts: 327

United Kingdom 
So I turned the switch on with the car off...nothing.

Turned the worklight on (it has the same type of switch), played with different switch positions with both switches...nothing.

Turned the car on...still nothing.

Have an issue with the stereo mic not working so tested that just in case it was some random mute switch...nothing!

Looked at all the mounting points around the car and its never had any spot on the rack or on the bumper.

I had the winch out the other day and it worked with the switch in the off position. I have an isolator key for the battery and the winch works from a remote if that makes a difference?

Not an ejector seat...also the number plate didn't revolve and guns didn't pop out from the headlights...unfortunately Laughing

I will try putting it in reverse and turning on now though! Watch this space......
Post #659944 27th Oct 2017 6:55pm
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720

United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
I think some one said before on here that ex-utility company ones with a power take off have a switch that allows to remove the key and keep the engine running.

But other than that as above it could be anything, winch isolator, parking sensors, work lights, all you can do is trace the wires and see where they go or switch it on and off and see what it works.
Post #659945 27th Oct 2017 6:57pm
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Greyman110



Member Since: 29 Sep 2017
Location: London
Posts: 327

United Kingdom 
I was so hopefully it was going to be more light when reversing...it wasn't.

I'll buy a beer for anyone who can tell me...even if we meet up and you look at at! Laughing
Post #659947 27th Oct 2017 7:05pm
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