Disco 4 trailer plug

[Konradical]

Evening all,

With the impending arrival of our new D4, I have been thinking about the stuff that needs to be done to make it fit in to our family and its needs.

One of those things is to set it up for our Jayco Dove camper.

The dealer knows that the D4 will tow and is going to set it up so the rear sensors don't go crazy, etc.. when a trailer is connected, during pre-delivery.

But what I have noticed is that the D4 has round trailer plugs fitted. Our van and current vehicles are set up with a flat 12 pin plug, which works out quite neat with the integrated pins to charge the home battery in the camper, plus spares for other auxiliary things.

Is it possible and has anybody done it, retro fit the standard plugs with the 7 or 12 pin flat plugs?

I plan on using a Redarc brake controller with the remote head, as I have seen one fitted to a 2012 D4 and it looked very neat and integrated.

I have done a search in the forums and posts, but I can't seem to operate it effectively to find an answer.

Look forward to your feedback!

Kon

Sent from my Nexus 6P using AULRO mobile app

[letherm]

But what I have noticed is that the D4 has round trailer plugs fitted. Our van and current vehicles are set up with a flat 12 pin plug, which works out quite neat with the integrated pins to charge the home battery in the camper, plus spares for other auxiliary things.

Is it possible and has anybody done it, retro fit the standard plugs with the 7 or 12 pin flat plugs?

A simple solution if you can't find the retro fit solution is an adapter from places like Super Chief Auto. They're around 10 dollars or so. Or were when I bought mine about 2 years ago.

Martin

[BMKal]

Have a read of this thread.

http://www.aulro.com/afvb/d3-d4-rrs/...g-removal.html

The D4 comes standard with two round plugs (a black one and a white one). The black one is the South Australian / NT standard and is what I have used (I converted both my trailers to this style of plug).

The white plug (12S style) is the English standard, and most people don't use them here, though they can be used for caravan power supply / charging the batteries. I'd recommend removing the 12S plug as described in the thread I've linked to, and fitting your flat plug in its place. You should be able to find standard wiring diagrams for a 12S plug so that you can translate this to the correct pin connections for your style of plug.

Don't forget that if your trailer/s have LED tail and indicator lights, you will need to install a load resistor (Narva or LED Technologies) on one of the indicator feeds on each trailer so that your Disco will recognize that the trailer is there. The standard "sensor" in the D4's wiring circuit will only "see" a trailer fitted with conventional incandescent globes, and will not "see" a trailer fitted with LED lights unless you add the load resistor to one of the indicator circuits.

[Meken]

ImageUploadedByTapatalk1452005044.155459.jpg
12 flat to 2x 7pin. The black socket (7n - n for normal) has the standard trailer configure EXCEPT for the electric brake feed which in Aus is pin 5 - disco uses pin 5 for one side tail light so you need to look at & print the electric brake controller instal thread -there is a handy summary put together by one of the aulroians- search it on here makes it so easy - that will tell you where to cut the loom and connect the Ebc wires...
So all 7 "small pins" side of the 12 flat go to the black 7 plug & the 5 "large pins" side of the 12 flat go to the White plug.
I made my adapter - easy as
White socket 7S (supplementary) is just that supplementary power - 2 x 12v supplies & 2x earths. I used standard 7 pin plug & pulled the earth pin out of the centre (still leaves 1 earth pin & I only used 1x 12v feed to run my van fridge)
You can get the White 7S plugs on eBay from the UK - pretty cheap.
Tow pro - great choice really happy with mine
I doubt you will find a premade adapter at auto accessory stores for a 12 flat to /x 7 pin (was on 7flat to 7 large round) when I was looking a few months ago.

PS I taped the 12 flats together just for peace of mind - unfortunately only had blue tape at the time

[LRD414]

These diagrams should help Kon (one below and one attached pdf). They are copied from the EBC sticky thread:
http://www.aulro.com/afvb/d3-d4-rrs/...er-brakes.html



Regards,
Scott

[Konradical]

[/QUOTE]Don't forget that if your trailer/s have LED tail and indicator lights, you will need to install a load resistor (Narva or LED Technologies) on one of the indicator feeds on each trailer so that your Disco will recognize that the trailer is there. The standard "sensor" in the D4's wiring circuit will only "see" a trailer fitted with conventional incandescent globes, and will not "see" a trailer fitted with LED lights unless you add the load resistor to one of the indicator circuits.[/QUOTE]


Where would this be fitted? All of our trailers are fitted with LED lights. Could it be fitted to the wiring in the car? I'd rather not have to retrofit all trailers.

Thanks to all who have replied. It has been helpful and I can plan my attack now.

[Meken]

Short answer - no you can't wire a load resistor into the car otherwise the car will think there is always a trailer connected.
There are a few options -
#1 you can buy a "box of tricks" that can plug in to the car socket first then the trailer plugs into that - this saves having to modify each trailer - also means if you borrow a trailer it'll by useable also. Linear electronics make one also there's one called pulse buster - they are overkill because they have relay circuits in them to quell the flickering that occurs with D3's & older freelander2 -and they'll set you back about $250.
#2 Linear electronics make the box of tricks in a version that gets wired into the car & it has switch to switch it online when you have trailer plugged in so that the car doesn't think there one always connected
#3 someone on here wired a load resistor into the trailer indicator circuit in the car - with a switch so it is bypassed when no trailer - this probably the cheapest option of you are good with auto electrics - just have to remember to ice the switch

[Narangga]

Where would this be fitted? All of our trailers are fitted with LED lights. Could it be fitted to the wiring in the car? I'd rather not have to retrofit all trailers.

Thanks to all who have replied. It has been helpful and I can plan my attack now.

Check out this

http://www.aulro.com/afvb/d3-d4-rrs/...er-lights.html

And this sort of thing can be purchased

http://www.aulro.com/afvb/electronic...-perth-wa.html

After reading a thread (unrelated to the one above) on the forum I bought this one

Discovery 3 | LED Tow Connect - Tow LED Fitted Trailers Safely

[Smocky]

Not to hijack, but rather to add to this thread.....

I have a MY16 D4. I have tried to research about the LED trailer light thing and can't quite get clarity.

It seems I have to buy a $200 odd device that sits between the car and the trailer?

Is there an option to wire something in to the CT wiring to fix this permanently without needing to have endless adapters?

Smocky.

[ytt105]

Smocky

You could just wire an additional couple of small globe blinkers onto the CT.

Problem solved.