Electrical connections for connecting a trailer to a car
Required materials:
* Electrical harness for trailer
* Set of connecting wires
* Electrical tape or heat shrink tube
* Soldering kit (optional)
* Multimeter (optional)
Electrical diagram:
| Signal | Wire color | Car connection | Trailer connection |
|—|—|—|—|
| Brake lights | Red | Left brake light | Left brake light |
| Brake lights | Red | Right brake light | Right brake light |
| Tail lights | Yellow | Left side light | Left side light |
| Tail lights | Yellow | Right side light | Right side light |
| Turn signals (left) | Green | Left turn signal | Left turn signal |
| Turn signals (right) | Brown | Right turn signal | Right turn signal |
| Reverse (optional) | Blue | Reversing lights | Reversing lights |
| Mass (ground) | White | Car frame | Trailer frame |
Connection instructions:
1. Locate the trailer wiring harness: This is usually located under the rear bumper or in the trunk.
2. Identify the Corresponding Wires on the Vehicle: Use the wiring diagram to determine which wires on the vehicle correspond to the trailer signals. These wires are usually the same color as the trailer wires.
3. Connect the wires: Connect the trailer wires to the corresponding wires on the vehicle using jumper wires. Use electrical tape or heat shrink tubing to insulate and protect connections.
4. Connect ground: Connect the white wire on the trailer to the trailer frame. Then connect the other end of the white wire to a proper ground point on the vehicle, such as the frame or negative battery terminal.
5. Check connections: Use a multimeter (optional) to check that the connections are working properly. Check continuity between the corresponding wires on the vehicle and trailer.
6. Install the electrical harness: Attach the electrical harness to the vehicle and trailer using cable ties or other suitable fasteners.
Adviсe:
*Use wires of the appropriate gauge size for specific signals. Refer to the vehicle or trailer owner’s manual.
* Solder connections to ensure reliability (optional).
* Check and tighten all connections after installation is complete.
* Check electrical connections regularly for signs of corrosion or damage.