Wiring A Trailer Diagram. 10 rows right turn of vehicles wiring harness trailers right turn signal left turn yellow 18 16 left. Narva 7 and 12 pin trailer connectors comply with all relevant adrs.
The table and diagram below explains the connections used on a 7 pin setup. This is slowly being replaced by the european 13 pin plug and will become less popular as the reverse light is introduced to new trailers between now and 2012 when it will be legal requirement. The other wire functionalities and placements are similar to those in a 6 pin trailer diagram where white is for ground green is for right yellow is for left brown is for tail lights and blue is for electric brakes.
Plug size is similar to an australian 10c coin.
7 rows the trailer wiring diagram shows this wire going to all the lights and brakes. The second diagram shows two brake lights two indicators two side lights and a fog light. Click on the image below to enlarge it. Here are two wiring diagrams for the 7 pin n type trailer electrical plug.