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Bushpig



Member Since: 07 Nov 2013
Location: Risca, Wales
Posts: 236

Wales 2012 Defender 110 Puma 2.2 SW Alpine White
Cruise Control Light in Puma Instrument Cluster
Hoping the electrically minded boffins will have an answer?

I've installed a Terrafirma CC unit (TFCCK07) and it has been 4 months of pleasurable driving.
The one nagging issue I have, is to have an 'operation' light in the instrument cluster when the cc is on. I've contacted the manufacturers (Lindgaard-Pedersen) and they have given me the details for wiring the external LED from the controller box.



Trawled the web and found this picture of a Disco3 cluster, which I thought was the same as fitted to my MY12.
So was going to use the existing cc light on the cluster, Plan A.


Click image to enlarge



Click image to enlarge


But after opening mine, it is not the same
There is no printed icon, nor LED in that position (#01 & #02).


Click image to enlarge



Click image to enlarge


So Plan B, use the "120km/h" in the centre screen (#03).
But cannot figure out which pin number on the connector for the cluster supplies this LED - LED106 / C106 (#04).

So my questions for the electrical boffins...
Plan A - is it possible to wire in an LED (preferably an RGB LED) & what pin(s) on the cluster supplies the power?
Plan B - what pin(s) supplies the power?

I've looked through the MY12 electric wiring diagram, workshop manual this forum and trawled the web, but cannot find any answers.

Any assistance will be greatly appreciated, otherwise I'll have to head for Plan C - wiring an LED into and engraving one of the switch blanks on the centre console. I know this is the easiest option, but will always look odd to me and I'm sure I'll need that switch in the future.

Hope that I've been making sense...
Thanks
Jason Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams

2012 2.2 Puma
Post #482384 15th Dec 2015 9:43am
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JOW240725



Member Since: 04 May 2015
Location: Suffolk
Posts: 7866

United Kingdom 2012 Defender 110 Puma 2.2 XS CSW Orkney Grey
Totally over my head, I'm not sure i even understand the questions so certainly can't help with an answer, sorry.

I do however wish I was in Botswana with my 110!!
Post #482397 15th Dec 2015 10:30am
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784

United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
When I wired in cc to my td5 I used the 120kmh light, it lights up yellow and quite bright. In my td5 I seem to remember that one of the pins at the back of the cluster needed to be earthed to illuminate the light. If you can solder pbc then I'd recommend changing the led to green as it's less irritating to the eyes at night Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
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Post #482767 16th Dec 2015 4:14pm
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mse



Member Since: 06 Apr 2008
Location: UK
Posts: 5024

United Kingdom 2016 Defender 110 Puma 2.2 XS CSW Scotia Grey
im sure the clocks in a defender are an older (but last shape) freelander, not disco version Mike
Post #482809 16th Dec 2015 6:02pm
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rallysteve



Member Since: 10 Feb 2014
Location: South Yorks
Posts: 2194

United Kingdom 2002 Defender 110 Td5 DCPU Keswick Green
You could always just use a resistor to dim the warning lamp rather than make a mess resoldering the surface mount led.

Steve 02' 110 TD5 Double Cab Rebuild Thread
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Mobile Diesel Heater Build Thread
Post #482970 16th Dec 2015 10:04pm
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Bushpig



Member Since: 07 Nov 2013
Location: Risca, Wales
Posts: 236

Wales 2012 Defender 110 Puma 2.2 SW Alpine White
Thanks to all for the tips and advice... Thumbs Up
Looks like for now it will be Plan C, unless I get some time in the festive break to sit down with the cluster and figure out which pins link to which LEDs.
Will post pics when done... Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams

2012 2.2 Puma
Post #483065 17th Dec 2015 11:54am
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6460

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Broadly speaking they are "Disco 3" instruments, however they are internally different as you have found and not functionally identical to the D3 pack.

What is your Plan A? You mention fitting an RGB LED but where?

Plan B is possible, if the 120km/h warning is triggered externally rather than by the cluster itself when the input speed is over 120km/h.

I think it may be the latter, with the overspeed warning enabled in the vehicle's config Sad

In theory you could modify the cluster to add a wire to the 120km/h LED to allow it to be triggered by your cruise control unit.

How does the cruise control unit want to control the LED, with positive voltage or ground?  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #483093 17th Dec 2015 1:19pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6460

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
The 12MY workshop manual confirms that the overspeed warning (120kmh lamp) is "self controlled" - i.e. the cluster itself determines when to turn it on.

Whether you want to modify the cluster to enable external control is up to you. I imagine you need only provide a ground to the LED to switch it on.  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #483094 17th Dec 2015 1:32pm
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Bushpig



Member Since: 07 Nov 2013
Location: Risca, Wales
Posts: 236

Wales 2012 Defender 110 Puma 2.2 SW Alpine White
The cc triggers the light with the ground, so it would need just 1 wire from the cc unit for Plan B?
The instructions from the manufacturer...


Click image to enlarge


Plan A, was to get an RGB LED (which no-one has here in Maun, so looking to use a spare green LED that I got for the heater cluster lighting for now, but will also be going through children's old toys to see if I can find a 12v RGB one) and mount it in the same position as it would be on a D3 cluster, as there seems to be enough space on that area to not mess with the rest of the circuit board. Then get the card laser etched with the cc symbol, this is how I converted other oe switches for rear 12volt power sockets and spotlights.


Click image to enlarge



Click image to enlarge


And now posting the second picture, I may just have solved my LED issue...
Now where have a stored that switch?

Martin, thanks for the tips and are you able to tell me which number pin on the back of the cluster would go to the "120" led or for Plan A?

Thanks Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams

2012 2.2 Puma


Last edited by Bushpig on 17th Dec 2015 2:16pm. Edited 1 time in total
Post #483100 17th Dec 2015 2:12pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6460

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Hi Jason, yes you would just need the 1 wire from the CC unit onto the cluster PCB.

Very neat laser etching of the button caps Thumbs Up  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #483101 17th Dec 2015 2:15pm
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Bushpig



Member Since: 07 Nov 2013
Location: Risca, Wales
Posts: 236

Wales 2012 Defender 110 Puma 2.2 SW Alpine White
So I've ended up chickening out with playing with the pcb.
Simply had a blank engraved with the cruise control icon and used the insides of an old switch for the illumination.


Click image to enlarge
 Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams

2012 2.2 Puma
Post #490860 11th Jan 2016 7:20am
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Pickles



Member Since: 26 May 2013
Location: Melbourne
Posts: 3748

Australia 2013 Defender 90 Puma 2.2 CSW Keswick Green
Pretty sensible & well thought out conclusion, I reckon.
Pickles.
Post #490865 11th Jan 2016 7:58am
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familymad



Member Since: 13 Dec 2011
Location: Bucks
Posts: 3459

 2016 Defender 130 Puma 2.2 HCPU Santorini Black
Always amazes me some of the work that people do to their TDCI's.

Top job fella 1951 80" S1 2.0
1995 110 300TDI
1995 90 300TDI
Post #490868 11th Jan 2016 8:03am
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Stiff1



Member Since: 09 Dec 2014
Location: Cornwall
Posts: 570

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
Me too.

So to all you electrics boffins, I would like to change my hazard switch from the central one pictured above to one that will fit the other standard switch holes.

Bought a Disco 2 switch which is the right size (although not sure if it is illuminated) but takes a different plug at the rear. Any thoughts on how to convert or an alternative switch?

Thanks in advance.
Post #491237 11th Jan 2016 9:40pm
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2062

United Kingdom 1984 Defender 90 200 Tdi HT Pennine Grey
Stiff, find someone breaking a disco 2 and get the plug from the harness. They are starting to be broken now that the chassis have dissolved 😊
Mo The Land Rover 90 - Many are called, few are chosen.
Post #491293 11th Jan 2016 11:40pm
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