Good spot! If so, that would certainly make things simple!
[T6] Looking for the D+ signal wire in a T6
- Thread starter Bryn23
- Start date
Good spot! If so, that would certainly make things simple!
Hi Bryn23, I see that you have the Votronic triple, I know this thread is rather old but would love to know how you got on with it and whether using the switched fuse sorted your D+ problem out? Did you use the AES solar output for a fridge?
Looking forward to installing mine this weekend, surprised this unit doesn't feature much in this forum, though there is a lot of brand loyalty here someone on this forum must work for sikaflex
Hi Hodgo,
I ended up just using a piggy back fuse into the fuse panel, to allow the unit to see that the ignition is active when the van is on.
I didn't use the AES solar output, i didn't see the need with my electrical layout.
These are a good unit, i used the 30/20/250 for our first trip around Australia and had no faults, so much so that i brought a 60/40/430 for our next trip around Aus. (we don't tend to plug in to mains, so we needed a faster charging for in-between camp sites)
But having said that, this new unit is faulty and will being going back, and i've had to put the older model back in for the time being, until it is fixed.
They do make some good products, but there customer care is a lot to be desired, its a very slow process, even with my distributor following them up, I had a fault with the Jupiter Panel, which was fixed after about 3-4 months...
If they were only as reliable as Sikaflex 291 or 252, lol
When i first installed this unit, i ended up taking the easy way out and using the VW fuse board, its true that i could have used the Aux battery relay, but to be honest i didn't even think of it at the time.
These is a lot more info on the forum now than 3 years ago
These is a lot more info on the forum now than 3 years ago
It is called, "engine run signal". There is no D+ on an intelligent alternator. With a DC-DC charger a normal ignition signal is fine. They all have a cut off voltage to protect the vehicle battery from excessive discharge.
May I ask what electrical component fuse you chose for this? I'm currently installing one and wondering what's the best fuse in the fusebox to choose.
Thanks for the info. Tho I’ve gone through all the fuses including the mini’s in the centre console with a DMM but can’t find anything switching on which is engine run dependant, everything seems to be permanently on or key in ignition on. Any ideas?
Update: sorry, should have read this thread through, travelvolts says ok to take ignition live
Update: sorry, should have read this thread through, travelvolts says ok to take ignition live
Last edited:
Sunwhite
Member
I am in the process of adding a 12V Lithium leisure battery to my T6 using a Redarc BCDC 1225 DC-DC charger the battery is a 100Ah Enerdrive eLite. The Redarc unit needs a blue wire connected to 12V ignition on which seems ok to find but on reading the Redarc handbook more closely it it says "for vehicles equipped with Stop-Start connect the blue wire to the D+ signal".
I have no idea what the D+ signal is or where to find it. As usual the VW handbook is of no use at all. Can someone please point me in the right direction?
(I tend to turn the stop start off but I do occasionally forget)
Cheers, Brian.
I have no idea what the D+ signal is or where to find it. As usual the VW handbook is of no use at all. Can someone please point me in the right direction?
(I tend to turn the stop start off but I do occasionally forget)
Cheers, Brian.
This thread has a chunk of useful info on
www.t6forum.com
Traditionally you would connect D+ to a circuit that is only live with the ignition in the fully on position 2.
This will work but has the downside that your DC-DC charger may be pulling 30amps off the main electrics during startup.
So ideally you want to try and pick up the "engine running" circuit from the BCM, then your charger will only be enabled when the engine is actually running. This is why Redarc are advising this route as doing this will cut the charger during start stop events.
This may also be of use to you:
www.t6forum.com
Ignition Live Under Passenger Seat - How Its Done -
Ignition Live Under Passenger Seat - How its done - This question pops up fairly often so i thought i would look at it a bit closer. . . . . If your van was factory fitted with the AUX battery under the seat, then your sorted. There is already a feed under there . . . . =] BUT what if your...
Traditionally you would connect D+ to a circuit that is only live with the ignition in the fully on position 2.
This will work but has the downside that your DC-DC charger may be pulling 30amps off the main electrics during startup.
So ideally you want to try and pick up the "engine running" circuit from the BCM, then your charger will only be enabled when the engine is actually running. This is why Redarc are advising this route as doing this will cut the charger during start stop events.
This may also be of use to you:
Installation Guide for Redarc DC-DC Charging Kit
Installation Guide for Redarc DC-DC Charging Kit supplied by @travelvolts
Travellingtaff
New Member
I want to fit a DC to DC charger but no idea where to pick up this D+ signal. Can you help please ? TIA
You don't need a D+ signal, just any ignition switched. Take it from the dash fusebox.
Depending on your DC-DC charger you might not need to as many can use software to detect engine run state.
Best advice, start a specific thread asking for advice with details/pics of your van and the charger and people will chip in.
Welcome to the forum!
Depending on your DC-DC charger you might not need to as many can use software to detect engine run state.
Best advice, start a specific thread asking for advice with details/pics of your van and the charger and people will chip in.
Welcome to the forum!
more info:
www.t6forum.com
connection : J519 BCM - T73a/3 for D+ Engine run signal, (the OEM option)
or
switched IGN feed - fuse tap from centre line of fuses on the SC fuse box (T6)
[Guide] DC-DC Charger (for leisure battery) -- How I Done It --
DC-DC Charger (for Leisure battery) -- How I Done It -- ************************************************** Dellmassive`s -- "how I Done It" -- Thread ************************************************** Kit List And Stuff -- How I Done It & What I Use --...
connection : J519 BCM - T73a/3 for D+ Engine run signal, (the OEM option)
or
switched IGN feed - fuse tap from centre line of fuses on the SC fuse box (T6)
As @Dellmassive says the only actual D+ on a vehicle with a smart alternator is from the BCM but you will probably get away with an ignition feed.
Travellingtaff
New Member
Thanks, thats helpful. When you say from the fusebox, am I correct in thinking there is some kind of piggyback fuse that you can take a wire off easily ?
Travellingtaff
New Member
Thank you...I'm new to the forum but I'll take that advice start a specific thread.
Sorry my post should have had a link to a thread but it seems to have gone astray, but @Dellmassive linked it in the next post
Hi Deaky,
Once you've sorted the output (what gear/software do you need BTW?) where do you pick the signal/contacts up for the hard wiring?
Have a look at this post earlier in this thread for the wiring info.
I see you are also in Shropshire, if you need the coding doing give me a call, I have VCDS.
Or maybe @Deaky can do it as he is also in Shropshire.
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