Trailer Wiring

Socket and plug wiring instruction
12N Normal Socket   12S Supplementary Socket
1) Left indicator   1) Reverse
2) Fog   2) Battery Charge **
3) Earth   3) Earth
4) Right indicator   4) Power feed
5) Right side light   5) Spare
6) Brake   6) Fridge **
7) Left side light   7) Earth for pin 6 (1998 on)
**NB It is essential that pin 6 is wired through a split relay from 1998 on!!

Relay wiring diagrams
NB  Colours may vary between manufacturers.  Instructions as listed are a guideline only and  no responsibility  will be accepted for incorrect interpretation.

Audible relay wiring instructions

 

Self switching tandem split charge relay wiring instruction

 

Single bulb failure bypass relay wiring instruction

 

Twin bulb failure bypass relay wiring instruction

 

Triple bulb failure bypass relay wiring instruction

 

Four way bulb failure bypass relay wiring diagram

 

Six way bulb failure bypass relay wiring diagram

 

Universal warning light relay instruction
Wire relay in with the 12N 7 core cable in the boot of the vehicle. Wiring through the vehicle where the light is to be mounted.