landymon

Member
As my trailer has 7 pin ‘N’ type plug only and caravan has both ‘S’ and ‘N’ type leads.
The RR only has a 7pin ‘N’ type socket on the chassis. So the reversing lights or battery charging dont work on the caravan.
Could I connect a ‘S’ 7pin socket using 7 core cable for the reversing lights and 12v supply to the caravan. Rather than buy a costly harness for the number times it would be used.
 
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Are you talking about the RR in your signiture?
If so I am suprised its only fitted with the 7 pin socket at that age.
It should have the direct plugins for the 13 pin.

TBH there is so much going on in a morden car it maynot be that easy.
I would just convert the car with the correct wiring harness to a 13pin and get some adaptors. Even for ocasional use its obviously an issue when you do tow the caravan.

We run 3 trailers and they are a mix as are the cars that tow them so we have a few adaptors in each car to suit. But not all functions.
But then we are not going to tow the horsebox (it has living space too) with the 90 ;).


So I guess we need to know which RR you are talking about;).

J
 
Decades ago I would have said 'why not' but linking in to today's complex vehicle electronics could see your instrument panel light up like a Christmas tree :oops:
But then I'm not a sparky, so waiting for informed advice would be a good idea.
 
Don't forget the caravan 13pin has 2 supplies, always on and switched.
So does 7 pin s socket. I have fitted both sockets on the P38 and the last L322 I had but must admit I purchased the proper loom so it just plug and play for this one (2008 L322) but reckon I could have worked it out to fit both if had to. Don't own a caravan (past dream) but I do get called on to check electrics on other people's vans at times hence going for both.
 
If the car is a P38, all the S connections are available in the left rear quarter behind the trim and 7 core cable is fine. There is a grommet at the base of the well below the connectors that can be used to route the cable. I can give you all the pin out info if needed. If it's not a P38, I have no idea.
 
Sorry guys, have to admit I’m a numpty.
Not taken any notice how many pins in the socket on the RR. Started to trace cables etc etc and found the caravan had a converter 13p to 7p. Thats why the reversing lights etc dont work. 🤭
 
Sorry guys, have to admit I’m a numpty.
Not taken any notice how many pins in the socket on the RR. Started to trace cables etc etc and found the caravan had a converter 13p to 7p. Thats why the reversing lights etc dont work. 🤭
So you have 13 pin on the car?

J
 
Left ind,
Right ind,
Brake,
Tail left,
Tail right,
Fog,
Earth.
Where would that permanent live be being a seven pin plug?
Unless it's wired to a dedicated trailor🤔
Just for example below, although there are particular adaptations also.
1745066730714.jpeg


1745066793683.jpeg
 
Is it a special application?
The number of standard trailer kits I've fitted there's never been a live pin 🤔 the only live for most modern kits I've fitted have been for the control module along with its own earth👍
Unless your talking about the additional second socket for caravans🤔
 
Is it a special application?
The number of standard trailer kits I've fitted there's never been a live pin 🤔 the only live for most modern kits I've fitted have been for the control module along with its own earth👍
Unless your talking about the additional second socket for caravans🤔
The 7S socket was standard for towing a caravan, in the case of the P38, there is a loom in the left side rear quarter for the 7S socket. As you know, the two 7 pin sockets have, courtesy of the EU, been superceded by the 13 pin socket which uses all the same connections.
 

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