A 13-pin plug is essential for connecting a trailer to a vehicle. If the plug is damaged, the lights may not work properly. In this guide, you will learn how to replace a 13-pin plug.
1. Why replace a plug?
- Damage due to wear and tear
- Corrosion at the contacts
- Malfunctioning lighting
2. What do you need?
- New 13-pin plug
- Screwdriver
- Stripper
- Multimeter (optional)
3. How do you replace the plug?
Step 1: Remove old plug
- Unscrew the old plug and disconnect the wires.
- Note how the wires are connected for the new installation.
Step 2: Connect new plug
- Strip the ends of the wires and connect them according to the 13-pin connector diagram.
- Make sure all the screws are tight.
Step 3: Testing the new plug
- Connect the plug to the vehicle and check that all lights work correctly.





