Towbar Wiring | Standard Colour and Terminal Codes

The following colour and number codes govern our 12N relay wires and terminals. The colours and numbers are based on the familiar 12N colours in 7-core cable and the numbers in 12N sockets and plugs.

Relay terminal number Relay Input wire Relay Output wire Relay Application
1 Yellow or Yellow/White Yellow LH Flasher
2 Blue N/A Fog Lamp
0V White White Earth
4 Green or Green/White Green RH Flasher
5 Brown N/A LH Tail
6 Red N/A Brake Lamps
7 Black N/A RH Tail
+12V Orange N/A Power to and from unit
C2 N/A Pink Monitors trailer indicators

The number 3 (Earth on 7pin socket) is not used on our relays.