Thread: D3 12N Trailer Plug and Reverse PIN 2

Thanks for your post I have been checking my black plug on my discovery 3 as I'm about to buy a van and need to make a cable to connect car and van. When I check volts on the car plug pin 6 stop lamps I only get 6 volts when the break is pushed is this correct?

Originally Posted by Lotz-A-Landies

I wonder what the ADRs are for if manufacturers can ignore them at their will. It is actually dangerous that a trailer wired for ADR (AS2513-1982) is plugged into a Euro (ISO 1724) socket. Pin 5 for the electric brakes will lock the brakes on when the tail lights are turned on and if you turn on the rear fog lamps on the car, the trailer will illuminate the white reversing lamps.



BTW the white ISO 3732 socket has the centre pin reversed so you can't plug in the wrong plug.

http://www.aulro.com/afvb/trailers-v...13-1982-a.html

Why can't someone design a 9 (or 10) large pin coupling, then we can have most circuits we need without going to the double row 12 pin coupling which doesn't flat mount and is vulnerable to damage under the body.

1. A large chassis ground pin.
2. Tail lamps
3. Stop lamps
4. Right turn lamp
5. Left turn lamp
6. Electric service brakes
7. reversing lamps
8. rear fog
9. Battery +ve
10. Ignition +ve/spare

Ahhh my old fav bee in my bonnet