13 Pin Cable Set 12V RVV Trailer Connector cable set for Europe

A trailer connector is a multi-pole electrical connector between a towing vehicle such as a car or truck and a trailer. It is intended primarily to supply automotive lighting on the trailer, but also provide management and supply to other consumers. It is also referred to as “trailer wire,” “trailer cable,” or “trailer connecting cable.”[1] Another feature the connector offers is feedback from the trailer to the towing vehicle, from being as simple as a fault indication for ABS brakes to advanced command, monitor and control using CAN bus for EBS brakes.

Different occurring variants and their recommended wiring are described here.

13 Pin Lighting Connections – Cable Function

PIN 1 – Yellow Wire (Left/Hand Direction Indicator)

PIN 2 – Blue Wire ( Rear Fog Lamps)

PIN 3 – White Wire ( Earth Return)

PIN 4 – Green Wire (Right/H Direction Indicator)

PIN 5 – Brown Wire (Right/H Tail & No. Plate Lamp)

PIN 6 – Red Wire (Stop Lamp)

PIN 7 – Black Wire (Left/H Tail & No. Plate Lamp)

PIN8 -Pink Wire ( Reversing Light)

PIN9-orange wire ( 12v permanent power from battery 12v)

PIN10-grey wire（12v ignition on (battery charging or fridge)

PIN11- White/ black wire (earth for terminal 10)

PIN12-white /blue wire (NOT usually used)

PIN13- White/red wire (earth for terminal 9)