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Author Topic: 12 volt feed tow bar electrics  (Read 4057 times)

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theboz

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12 volt feed tow bar electrics
« on: 05 September 2012, 19:45:51 »

 :-\already looked in help, but can anyone help me find the 12 volt feed for my caravan fridge, i have found the loom in boot and i have one socket on tow bar but need the 12 volt suppy which wires do i use from loom
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Lazydocker

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Re: 12 volt feed tow bar electrics
« Reply #1 on: 05 September 2012, 20:39:10 »

Ideally you should run a dedicated, fused supply for supplying 12S power ;)

Can't remember the colour but there is a large(ish) 12V feed in the pre wired socket in the boot which, if only running the fridge, should be sufficient.
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Andy B

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Re: 12 volt feed tow bar electrics
« Reply #2 on: 05 September 2012, 21:33:12 »

.....
Can't remember the colour but there is a large(ish) 12V feed in the pre wired socket in the boot which, if only running the fridge, should be sufficient.

Unsurprising it's red ......  ::) and it needs a fuse fitting in the fuse box under the steering column.  :y (Fs 27 I think ..... although I'm sure I'll get it confirmed from somewhere in Bristol  ::))
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Andy B

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Re: 12 volt feed tow bar electrics
« Reply #3 on: 05 September 2012, 21:36:45 »

:-\already looked in help, but can anyone help me find the 12 volt feed for my caravan fridge,  .......

It would have been quicker looking in the car than in the help section!  ;) ;) ;) There's a square (preface lift) or round (facelift) socket in the boot with all the lighting wiring for your towbar plus a larger red wire that (as said above) just needs a fuse fitting to power it up.
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The Red Baron

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Re: 12 volt feed tow bar electrics
« Reply #4 on: 05 September 2012, 21:41:05 »

:-\already looked in help, but can anyone help me find the 12 volt feed for my caravan fridge,  .......

It would have been quicker looking in the car than in the help section!  ;) ;) ;) There's a square (preface lift) or round (facelift) socket in the boot with all the lighting wiring for your towbar plus a larger red wire that (as said above) just needs a fuse fitting to power it up.
correct.  :y
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Andy B

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Re: 12 volt feed tow bar electrics
« Reply #5 on: 05 September 2012, 21:43:29 »

:-\already looked in help, but can anyone help me find the 12 volt feed for my caravan fridge,  .......

It would have been quicker looking in the car than in the help section!  ;) ;) ;) There's a square (preface lift) or round (facelift) socket in the boot with all the lighting wiring for your towbar plus a larger red wire that (as said above) just needs a fuse fitting to power it up.
correct.  :y

I know!  ;) ;) ;) ;)
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theboz

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Re: 12 volt feed tow bar electrics
« Reply #6 on: 06 September 2012, 06:59:25 »

many thanks guys found the sqare socket, there is a wire looped in there, lookes like it just conects back into the pin next to it is this normal, fuse 29 is the one to power it up i think. is the red wire in that soket or the loom :-\ 
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Jimbob

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Re: 12 volt feed tow bar electrics
« Reply #7 on: 06 September 2012, 13:49:04 »

Im looking at fitting an extra 'aux' socket in the boot too...

Presuming the big red is perm live...is there a switched live in there too?
saves too much of a drain while at services etc.

Andy B

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Re: 12 volt feed tow bar electrics
« Reply #8 on: 06 September 2012, 21:47:48 »

..... there is a wire looped in there, lookes like it just conects back into the pin next to it is this normal,
Yes, that's correct. It's for turning the caravan's rear fog light off if you use a 'real' GM loom.  :y :y



fuse 29 is the one to power it up i think. is the red wire in that socket or the loom :-\
I was only out by 2  ;D ;D If you fit a fuse, then the larger red wire in the socket will have 12 volts at it.  :y
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RobG

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Re: 12 volt feed tow bar electrics
« Reply #9 on: 06 September 2012, 21:49:09 »

Quote
(Fs 27 I think ..... although I'm sure I'll get it confirmed from somewhere in Bristol
:P ;D
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Andy B

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Re: 12 volt feed tow bar electrics
« Reply #10 on: 06 September 2012, 21:49:56 »

Im looking at fitting an extra 'aux' socket in the boot too...

Presuming the big red is perm live...is there a switched live in there too?
saves too much of a drain while at services etc.

No.  :( You could use it to power a voltage sensitive relay ........  :-\ :-\
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Andy B

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Re: 12 volt feed tow bar electrics
« Reply #11 on: 06 September 2012, 21:50:33 »

Quote
(Fs 27 I think ..... although I'm sure I'll get it confirmed from somewhere in Bristol
:P ;D

But was I right or not?  ::) ::) ::) ;D ;D
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Entwood

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Re: 12 volt feed tow bar electrics
« Reply #12 on: 06 September 2012, 22:13:07 »

..... there is a wire looped in there, lookes like it just conects back into the pin next to it is this normal,
Yes, that's correct. It's for turning the caravan's rear fog light off if you use a 'real' GM loom.  :y :y



fuse 29 is the one to power it up i think. is the red wire in that socket or the loom :-\
I was only out by 2  ;D ;D If you fit a fuse, then the larger red wire in the socket will have 12 volts at it.  :y

Now why would you want to do that ??? The correct way is to turn of the CAR rear fog light when the caravan is connected so as to avoid the reflected glare. Best way of doing that is to use a towing socket (12S or 13pin)with an inbuilt interupter switch, as you connect the towing vehicles electrics it breaks the feed to the car rear fogs.

:)
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Andy B

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Re: 12 volt feed tow bar electrics
« Reply #13 on: 06 September 2012, 22:25:37 »

..... there is a wire looped in there, lookes like it just conects back into the pin next to it is this normal,
Yes, that's correct. It's for turning the caravan's rear fog light off if you use a 'real' GM loom.  :y :y



fuse 29 is the one to power it up i think. is the red wire in that socket or the loom :-\
I was only out by 2  ;D ;D If you fit a fuse, then the larger red wire in the socket will have 12 volts at it.  :y

Now why would you want to do that ??? The correct way is to turn of the CAR rear fog light when the caravan is connected so as to avoid the reflected glare. Best way of doing that is to use a towing socket (12S or 13pin)with an inbuilt interupter switch, as you connect the towing vehicles electrics it breaks the feed to the car rear fogs.

:)

Ooops!  ::) It's been a looooong day!
The extra miroswitch was what I meant re a real GM loom  :y
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steve6367

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Re: 12 volt feed tow bar electrics
« Reply #14 on: 06 October 2012, 14:34:44 »

Just following this - my handbook says fuse 29 "Terminal 30: constant current for caravan / trailer" 20 amp. On the car there is a 10 amp fuse in 29 which does not make the feed in the boot go dead. I ve tried 27 too but it's not that either.

To save me taking them all out anyone have any experience of this?

Thanks

Steve
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