Vertical wiring diagram for a light trailer
Base
*7 pin connector
* Power cord (red, 12 V)
* Ground wire (white)
* Turn signal wire (yellow)
* Brake light wire (green)
* Side light wire (brown)
* Fog light wire (blue)
* Reverse wire (black)
Side lights
* From 7-pin connector (brown wire)
* To side lights
Brake lights
* From 7-pin connector (green wire)
* To brake lights and additional brake lights (if equipped)
Turn signals
* From 7-pin connector (yellow wire)
* To turn signal repeaters
* To the rear lights (with built-in turn signals)
Fog lights
* From 7-pin connector (blue wire)
* To fog lights (if equipped)
Reverse
* From 7-pin connector (black wire)
* To the reversing lights (if equipped)
LED lights
*If LED lights are used, it may be necessary to install resistors in the wiring to reduce the current.
Additionally
* Electric brakes (separate wire and connector)
* Running lights
* Side marker lights
* Rear view camera
Notes
* All connections must be secure and insulated.
* Use wires of the appropriate size to handle the current.
* Observe the color code of the wires to prevent errors.
*Before connecting the trailer, check that all lights are working correctly.
* Check wiring regularly for damage and corrosion.