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Martin
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Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
You need a "speedo healer" to correct the speed signal being sent from the speedo down to the ECU.  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #613519 31st Mar 2017 8:58am
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steve_c3



Member Since: 30 Apr 2015
Location: Hants
Posts: 173
United Kingdom 2002 Defender 110 Td5 SW Epsom Green
Just a follow on from Martin and also my previous posts, I've since changed the ratios in my transfer box last year and the cruise did indeed stop working. Its because the revs and road speed are outside the parameters set in the ECU. I purchased a Speedo Healer and fitted it under the drivers seat. I believe it simply adjusts the pulse going into the ECU. It was easy to set up and if i remember correctly a -15% adjustment on it solved the problem and cruise control was working again. 2002 Defender 110 CSW TD5
Post #613523 31st Mar 2017 9:26am
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DiscoSmiley



Member Since: 31 Mar 2017
Location: Alberton JHB
Posts: 5
South Africa 
Thanks Martin. I will look into this. Sounds interesting. Have you done yours?
Post #613524 31st Mar 2017 9:26am
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Harry.O



Member Since: 25 Jul 2014
Location: Warwickshire
Posts: 714
United Kingdom 1989 Defender 90 300 Tdi ST Nato Green
Had a similar thing with the cruise control in my 2005 Td5. A friend kindly wired in a couple of switches as per the link on the previous page and it worked perfectly. Total cost was about £10 for a few lengths of wire and some ECU connectors.

Later on the mainshaft in the gearbox collapsed and I upgraded it to a v8 5th gear ratio. After that CC would engage but knock off after 5 seconds. Last weekend I plumbed in a Speedohealer and set the reduction to 7% and all is good once again. At the same time i fitted a D2 switch onto the column and very happy with the outcome.



Click image to enlarge
Post #613540 31st Mar 2017 10:29am
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Green Machine



Member Since: 19 Nov 2010
Location: North Yorkshire
Posts: 1226
United Kingdom 2005 Defender 90 Td5 CSW Tonga Green
Harry - looks neat. What have you use for the cruise on/off switch? 2005 Td5 | 90 Station Wagon | Tonga Green
Post #613571 31st Mar 2017 12:06pm
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steve_c3



Member Since: 30 Apr 2015
Location: Hants
Posts: 173
United Kingdom 2002 Defender 110 Td5 SW Epsom Green
That looks familiar! Same install on mine. I needed a to shave the internal metal a little to fit but seemed ok.


Click image to enlarge 2002 Defender 110 CSW TD5
Post #613576 31st Mar 2017 12:44pm
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Harry.O



Member Since: 25 Jul 2014
Location: Warwickshire
Posts: 714
United Kingdom 1989 Defender 90 300 Tdi ST Nato Green
Thanks Green Machine Very Happy I had a spare Carling switch on the dash which is used as the on/off.

Steve - it may well have been your photo that promoted me to use the D2 switch! Very pleased with it so thank you Thumbs Up I also had to trim a bit off the underside of the metal bracket on the column.


Click image to enlarge
Post #613585 31st Mar 2017 12:58pm
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steve_c3



Member Since: 30 Apr 2015
Location: Hants
Posts: 173
United Kingdom 2002 Defender 110 Td5 SW Epsom Green
No problem, I think I gleaned the information from another forum out there somewhere but happy to share Wink 2002 Defender 110 CSW TD5
Post #613594 31st Mar 2017 1:40pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Which speed healers are people using with D2 transfer boxes?  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #613639 31st Mar 2017 6:33pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
Healtech speedohealer from flatdog for me 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
Instagram http://www.instagram.com/george_grafton
Post #613660 31st Mar 2017 7:34pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410
United Kingdom 
Hi a Martin. There is now a defender specific speedo healer. Costs about £70. Ashcroft, flatdog, paddocks, trek overland and others sell them.

http://www.ashcroft-transmissions.co.uk/sp...n-kit.html
Post #613661 31st Mar 2017 7:34pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Gotcha ta. Looks like a Britpart supplied item Whistle  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #613672 31st Mar 2017 7:51pm
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steve_c3



Member Since: 30 Apr 2015
Location: Hants
Posts: 173
United Kingdom 2002 Defender 110 Td5 SW Epsom Green
Mine came from Ashcroft along with the transfer box. Not sure what make it is though. 2002 Defender 110 CSW TD5
Post #613687 31st Mar 2017 9:04pm
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Harry.O



Member Since: 25 Jul 2014
Location: Warwickshire
Posts: 714
United Kingdom 1989 Defender 90 300 Tdi ST Nato Green
geobloke wrote:
Hi a Martin. There is now a defender specific speedo healer. Costs about £70. Ashcroft, flatdog, paddocks, trek overland and others sell them.

http://www.ashcroft-transmissions.co.uk/sp...n-kit.html


That's the same as the one I used, it had a Britpart sticker on the packaging but inside is branded as Healtech.

The instructions by Ashcroft say to attach it near to the transfer box plug but that would also adjust the speedo reading. I popped mine beside the ECU which Grafty99 suggested, it alters the signal just before it enters the ECU but does't affect the speedo.
Post #613748 1st Apr 2017 10:10am
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ibexman



Member Since: 13 Dec 2008
Location: Essex
Posts: 2945
United Kingdom 
where do you wire it to
Post #613752 1st Apr 2017 10:28am
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