![]() | Home > Technical > Td5 Disco canbus. |
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grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4795 ![]() ![]() ![]() |
This isn't as off topic as the title might suggest.
I've been given a Disco 2 instrument cluster and have been researching the wiring diagrams to see what would be involved to run them in a defender. Luckily most of the functions are as per the defender (would have to run a disco 2 map to get the temperature gauge to function correctly) However some of the functions are canbus controlled, well in fact just 3 of the ones you'd need for a defender. That's the left and right direction indicator and the trailer indicator warning light. I haven't taken the cluster apart yet to see if it would be possible to drive the LEDs via resistors. I think it would be awesome to use Arduino or similar to control the canbus functions as there is also a built in speaker which would allow for a light on warning chime etc. So if anyone could shed some light on how I would go about finding the can protocol out and emulating it I would be very grateful ![]() 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 |
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Jontd5 Member Since: 09 Dec 2018 Location: Laois Posts: 39 ![]() ![]() |
99% sure there's no canbus in the D2 dash pack - should be handy enough get indicator warning lights sorted - if it's any help I can post a link for a D2 wiring diagram and connector layout - have them for a Td5 defender too if needed
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grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4795 ![]() ![]() ![]() |
From the D2 electrical library,
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 |
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Jontd5 Member Since: 09 Dec 2018 Location: Laois Posts: 39 ![]() ![]() |
And yes there's a built in speaker on the back of the D2 instruments - tho the chimes might be bcu controlled - the D2 wiring system is actually very simple
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grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4795 ![]() ![]() ![]() |
Thank you Jontd5 I have the defender layout diagram for the connectors but only the pin numbers for the D2 so that would be most useful
![]() 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 |
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Jontd5 Member Since: 09 Dec 2018 Location: Laois Posts: 39 ![]() ![]() |
https://drive.google.com/folderview?id=0B2...jN4LTVkdVU
That's all my D2 and defender stuff, the fusebox and bcu work together to control indicators in a D2 - there's no replaceable flasher unit - there is a two relays in the fuse box , one for left and other right. What you are trying has been done before I think - so should be possible |
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17602 ![]() ![]() ![]() |
The control of these indicators is indeed a setrial bus, however I think it is a proprietary bus and not CanBus. Certainly the wiring on the vehicle does not conform to ISO 11898 (it is a single wire system rather than TP for starters) and I don't imagine that it is packet based. I have never seen a spec for this interface and i suspect that the only way to find out how it works would be to stick a logic analyser on it and see. Then of course there's the problem of how to emulate the BCU/IDM end of it. It is probably easier, all things considered, to modify the instrument pack to work in a more defenderish (ie prehistoric) manner! |
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grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4795 ![]() ![]() ![]() |
Thanks Blackwolf,
This is what I thought, not really what I wanted to do but as you say. Probably the easiest route ![]() 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 |
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grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4795 ![]() ![]() ![]() |
Thanks Jon, I'll have a browse ![]() 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 |
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dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 ![]() |
these are driven by body control unit ![]() ![]() ![]() |
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grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4795 ![]() ![]() ![]() |
Decided to go for the KISS approach.
Cut the PCB tracks and soldered direct to the SMD LED. Got the trailer indicator light working so far.... ![]() 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 |
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grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4795 ![]() ![]() ![]() |
All working, and switches 12v+ to suit the defender loom
![]() ![]() Click image to enlarge 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 |
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dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 ![]() |
glad you chose that approach.
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Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3698 ![]() ![]() ![]() |
Innovative stuff! Looking forward to seeing it fitted.
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