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Home > Technical > Trailer socket connections

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Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

2007 Defender 110 Puma 2.4 SW Stornoway Grey

Trailer socket connections

Hi there !!

I'm starting the repairs of my "new" folding camper and I want to check the wiring diagram for the lights.

This is the scheme that I do (trailer socket - trailer lights scheme) but I dont know if it is correct or not, so comments are welcome...

Some questions:

1.- What is the difference between pins 5 and 7, both appears as 12V directly from the battery passing through the Lighting control. That means that I need to have my lights on to have 12V supply in the camper from the car?

2.- As far as can see there is not a pin for the reverse lights �why? In our case fog lights are not required but reverse ligths should be necessary.

Thanks in advance for the help Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

31st Aug 2010 7:48pm

Glynparry25

Member Since: 16 Feb 2009
Location: Miserable Midlands
Posts: 3015

2009 Defender 110 Puma 2.4 XS DCPU Tonga Green

Re: Trailer socket connections

Eduardo wrote:

2.- As far as can see there is not a pin for the reverse lights �why? In our case fog lights are not required but reverse ligths should be necessary.

Thanks in advance for the help

Not to sure about the 12v, but personaly for the power supply into the trailer I wouldn't use a 12n plug- would rather use something meatier with anderson connectors,

As for the second point...... other than some new trailers just bought into service witht he army, I have't seen trailers with revese lights.

Hope this helps a little,
Glyn

31st Aug 2010 9:26pm

BlondeBimbo

Member Since: 23 Jul 2010
Location: Lothians
Posts: 5

there are three types of plugs/sockets for trailers

12N

Is the normal one for towing
pin Use
1 Nearside indicator
2 Rear Fog
3 Earth
4 Offside indicator
5 offside tail light
6 Stop
7 Nearside tail light and number plate

There is no reversing light

12S

Is the normal one for power supply to a caravan (supplements the use of 12N)
pin Use
1 Reversing light
2 Caravan Battery
3 Earth
4 12v power
5 not used
6 refrigerator
7 not used

It is normal to have two sockets/plugs for caravanning 12N (black) and 12S (Grey)

However there is now a new 13pin single socket as follows:

in Use
1 Nearside indicator
2 Rear Fog
3 Earth for pins 1-8
4 Offside indicator
5 offside tail light
6 Stop
7 Nearside tail light and number plate
8 Reversing light
9 Caravan Battery or interior lights (perm supply)
10 refrigerator (Ignition controlled supply)
11 Earth for pin 10
12 sensing device
13 Earth for pin 9

Does that help?

BB

31st Aug 2010 9:51pm

Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

Thanks for both answer,

Apears that I need to install the 12S

Thanks Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

31st Aug 2010 9:59pm

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