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Subject Topic: 7N / 7S Conversion to 13 Pin Post Reply Post New Topic
21/8/2017 at 3:48pm
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I`ve been having numerous issues with the electrics on my 1995 Compass Reflections 430/5. My towing vehicle is a 2011 Renault Master van with a 13 pin connector. After using the 7s/7n to 13 pin adapter, i found the connections were too loose and the rear lights were hit and miss. I have now purchased the 13pin male plug with 2 cable entry points and have wired it up as per the numerous diagrams available, however, I`m still having the following issues:
1 - Brake lights arent coming on (red cable is showing continuity from the lights to the plug)
2 - Pin 8 on the 13 pin plug is for reversing lights, which my caravan doesn`t have.

Looking at the auxiliary wiring diagram in the manual, only 7s pins 2, 3, 4 and 6 are utilised:
7s Pin 2 - Blue (battery charging)
7s Pin 3 - White (I`m guessing earth)
7s Pin 4 - Green (diagram shows it going to the fuse for the battery and from there to the Zig controller)
7s Pin 6 - Red (Fridge)

So that leaves, Black, Brown and Yellow wires redundant. Am I correct in assuming the following connections to the 13 pin plug:

Pin 8 - nothing(no reversing lights on van)
Pin 9 - Blue (Permanent 12v)
Pin 10 - Red (Switched 12v for fridge)
Pin 11 - White (Earth)
Pin 12 - nothing
Pin 13 - nothing

Where does the green wire connect to? All of the diagrams I`ve seen say the blue wire is redundant, but it cant be?
I`m in desperate need here of some guidance. Can any of you help?
Many thanks


21/8/2017 at 4:31pm
 Location: Bolton
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Your 7s plug should have an earth return for your fridge your fridge supply is pin 6 red and the earth return should be pin 7 black. Most 13 pin connections are like this


21/8/2017 at 4:42pm
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Geoff, so pin 11 should be black (earth for fridge) and pin 13 should be white (earth for battery feed)?


21/8/2017 at 4:47pm
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Yes (another link here


21/8/2017 at 4:52pm
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Yeah, Ive printed off that guide Geoff, but It still doesn`t make sense. It mentions the blue wire being for battery charging on the caravan, but not used on the 13 pin socket. With the caravan manual diagram showing only the 4 cable colours as per my post, either I`m missing something obvious or I`m just being thick


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21/8/2017 at 5:30pm
 Location: Bolton
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On the 13 pin the permanent supply including battery charging is pin 9 orange this has an earth return pin 13 white/red.
Blue wire for battery charging? On 13n its fog lights. On 12n its foglights on 12s its sensing device.
on the 12s the permanent cable is green.


21/8/2017 at 5:43pm
 Location: Bolton
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These are the standard 12N and post 1999 12S wiring connections. Check compatibility with your car in case it is wired differently.

12n pin 1 Yellow Left indicator to Eurosocket pin1
12n pin 2 Blue Rear Fog to Eurosocket pin 2
12n pin 3 White Earth to Eurosocket pin 3
12n pin 4 Green Right Indicator to Eurosocket pin4
12n pin 5 Brown Right tail/Num plate to Eurosocket pin 5
12n pin 6 Red Brake/stoplamp to Eurosocket pin 6
12n pin 7 Black Left tail/num plate to Eurosocket pin 7



12s pin 1 Yellow Reverse lamps to Eurosocket pin 8
12s pin 4 Green Internal equipment to Eurosocket pin 9
12s pin 6 Red Fridge to Eurosocket pin 10
12s pin 7 Black Earth for pin 10 to Eurosocket pin 11
12s pin 2 Blue Not used to Eurosocket pin 12
12s pin 3 White Earth for pin 9 to Eurosocket pin 13
12s pin 5 Brown Not used



via mobile 30/11/2023 at 10:27pm
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I've been looking to change my caravan from two 7 pin to single 13 pin euro electrics. How do you earth the relevant wires?


via mobile 01/12/2023 at 2:58pm
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This is caravan wires into 13 pin plug

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2023 Swift Archway Woodford, MK3 Kuga ST Line X 190 ps AWD Auto
Now 52 years Caravanning completed.


via mobile 01/12/2023 at 3:05pm
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Are the earth wires in a connection block?


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via mobile 01/12/2023 at 3:14pm
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All the earth wires in you two caravan leads go to the appropriate pin number on the 13 pin plug there are 3 earth pins 3 11 & 13

-------------
2023 Swift Archway Woodford, MK3 Kuga ST Line X 190 ps AWD Auto
Now 52 years Caravanning completed.


via mobile 01/12/2023 at 3:36pm
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On the fuse board the earth wires are not connected? How do they get earthed?


via mobile 01/12/2023 at 7:16pm
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The only way they can be earthing then is through the chassis and hitch to towball This needs rectifying.

-------------
2023 Swift Archway Woodford, MK3 Kuga ST Line X 190 ps AWD Auto
Now 52 years Caravanning completed.


via mobile 01/12/2023 at 8:18pm
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On the current 7 pin electrics, on the 12s (grey) the back and white cables go into clip and not into the fuse. I wanted to know if this how the wires are earthed? On a 13pin 11 earth return for 10(fridge).

13 is earth return 9 (battery).




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