Connecting the trailer electrical system to the vehicle
To correctly and safely connect the trailer electrical system to the vehicle, you must complete the following steps:
1. Mechanical fastening
* Attach the socket to the trailer and the plug to the vehicle.
2. Electrical connections
* Pin 1: Ground (white wire)
* Pin 2: Dimensions (brown wire)
* Pin 3: Brake lights (red wire)
* Pin 4: Left turn signal (yellow wire)
* Pin 5: Right turn signal (green wire)
* Pin 6: Battery (blue wire)
* Pin 7: Ground (black wire)
3. Functionality check
* Check all lights to ensure they are working properly.
* Use a tester to check the voltage on the contacts.
Trailer wiring diagram
A trailer wiring diagram typically includes:
* Power source (battery or car)
* Lighting controller
* Headlights, brake lights, turn signals, etc.
* Grounding
Car wiring diagram
A car wiring diagram for connecting a trailer usually includes:
* Towing controller
* 7-pin trailer connector
* Headlights, brake lights, turn signals, etc.
* Grounding
Towing control unit
The towing control unit is a device that controls the electrical functions of the trailer on the vehicle. It may include:
*Automatic turn off rear fog light
* Automatic increase in brightness of brake lights
* Overload protection in the lighting system
Safety Tips
* Make sure all connections are secure and protected from moisture.
* Use wires of the correct size and materials.
* Check the electrical system regularly for problems.
* Do not overload the trailer lighting system.