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zaphod
Member Since: 18 Sep 2007
Location: Magrathea
Posts: 357
  
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To the assembled knowledge of the forum (again) 
Have just bought as nice new Atera Strada bike carrier and hooked it up to the towing electric socket on the back of the Disco. Everything seems fine except for the reversing lights which don't work 
Have checked fuses and am off to check bulbs. Any ideas guys?
Anyone know which socket pin is meant to control the reversing lights?
Now going armed with multi-meter to try....... Sail Fast - Live Slow...
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 26th Jun 2008 6:39 pm |
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zaphod
Member Since: 18 Sep 2007
Location: Magrathea
Posts: 357
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Wiggs,
Big help
This means my voltmeter is working and that the car is wired correctly 8)
However, only having towed a few times before, I've never paid much attention to the electrics.
Question, why is there no reversing light output on the 12N connector? Do caravans normally have a plug going to each socket to get around this?
Guess I'll either have to live with no reversing lights or re-wire a work-around, perhaps using 2 plugs into 1 loom...... 
Cheers Sail Fast - Live Slow...
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| 26th Jun 2008 11:54 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368
  
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zaphod wrote:Question, why is there no reversing light output on the 12N connector?
Not enough pins on the 12N socket ?
Seriously ..i dont know ..i dont tow ...some one who caravans will be better able to answer the questions hopefully G4 Gone ...but not forgotten
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| 27th Jun 2008 12:25 am |
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Bushwanderer
Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050
 
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Seriously,
In Australia, the black (12N) pins are:
1. Left-hand turn,
2. Reversing signal,
3. Earth return,
4. Right-hand turn,
5. Service (electric trailer) brakes,
6. Stop lamps,
7. Rear, clearance & side-marker lamps.
Therefore, the answer is - reversing lights illumination is available (pin 2). (with thanks to Drivesafe.)
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| 27th Jun 2008 9:39 am |
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al cope
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10297
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For the UK, here are the 12N and 12S wiring details:
12N Wiring
Socket
Pin No. 7-core cable colour to Vehicle Circuit
1 Yellow to LH Flasher
2 Blue to Fog Lamp
3 White to Chassis earth
4 Green to RH Flasher
5 Brown to RH tail light
6 Red to Brake Lights
7 Black to LH tail light
12S Kits and Relays
General Instructions for Wiring 12S Socket to Vehicle (12 Volt Negative Earth)
7-core cable colour Connect to Socket terminal No.
Yellow Reversing light and catch 1
Blue Live feed aux battery 2
White Earth 3
Green Live feed interior lights* 4
Brown Sensing Device Spare 5
Red Live feed fridge 6
Black 2nd Earth 7
* On caravans post 1996 this feed is automatically switched during towing by a relay in the caravan to charge the caravan battery. When this happens, other interior circuits are off (except fridge).
hope this helps
Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD
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| 27th Jun 2008 10:03 am |
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B16 KJR
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
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As al said, unless the trailer/carrier also has the 12s connection then you will not get reversing lights.
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| 27th Jun 2008 10:47 am |
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zaphod
Member Since: 18 Sep 2007
Location: Magrathea
Posts: 357
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Thanks guys,
I'll try to avoid reversing anywhere 
Think I'll see if I can come up with a work-around whilst enjoying Islay's distilleries next week 
Cheers Sail Fast - Live Slow...
.. / -.- -. --- .-- / .-- .... . .-. . / -- -.-- / - --- .-- . .-.. / .. ...
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| 27th Jun 2008 8:19 pm |
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Bushwanderer
Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050
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You lucky  !
I haven't sampled the islands produce - apart from Laphraoig (sp?). I love it, but can't afford it. 
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| 28th Jun 2008 3:50 am |
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B16 KJR
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
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Only way for a work-around is to take a piece of 2 core wire from the trailer board to the cars 12s via a 12s plug. On the board connect one wire to the reversing light live connection, the other to an earth point. At the other end connect the live to pin 1 and the earth to pin 3, plug in the 12s and away you go.
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| 28th Jun 2008 10:41 am |
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TallPaul
Member Since: 03 Jan 2008
Location: Near Reading
Posts: 1214
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Or buy the 13 pin euro plug wiring, but I am sensing its too late for that...  Disco3 is now gone but not forgotten. Waiting for Disco6 with full aluminium construction weight reduction and hybrid engine...
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| 28th Jun 2008 6:28 pm |
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B16 KJR
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
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But both the car and trailer board have 7 pin connections. Would be a big (and expensive) job to convert to 13 pin.
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| 30th Jun 2008 11:02 am |
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Bushwanderer
Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050
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Sorry, but don't you have two 7-pin plugs? The black is 12N, while the white is 12S.
Or, once again, am I missing something here. 
Best Wishes,
Peter
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| 1st Jul 2008 6:00 am |
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