Connect the major vehicle and the additional trailer; Transfer the electronic signature from the vehicle to trailer.
This shows the standard wiring colours, but your car might not be standard. If it is not then you should note which pin number each wire goes to before removing the old socket and simply connect the new one the same.
| Product information | |
| Model: | CT4002 |
| Type: | Socket（European Style) |
| Shape: | flat round |
| Production process: | Injection molding |
| Features: | Waterproof |
| Contact material: | Copper |
| Insulator material: | Engineering plastic |
| Material: | plastic |
| Number of cores: | 7 |
| Number of stitches: | 7 |
| Voltage output: | 12V |
| Main function: | Connecting truck and power supply, suitable for trailer signal display |
| Applications: | Commercial vehicles / trailers / RVs / trucks / trucks / semi-trailers /Car/ship/caravan/yacht, etc. |
7 Pin Lighting Connections – 12 N Black 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)
Caravan 7 pin supplementary circuits 12S grey cable function
Pin 1- Yellow Reversing Lamps
Pin 2- Blue Battery Charging (original UK system)
Pin 3 -White Earth Return (for pins 2&4)
Pin 4- Green Power Supply
Pin 5 -Brown Spare
Pin 6- Red Fridge
Pin 7- Black Earth Return (for pin 6)
![Australia 6 Pin small round plastic Trailer socket with male pin [CT7012]](https://www.gct-partszone.com/uploads/df74603f-300x300.jpg)
