Troubleshooting LED Blinkers on Boat Trailer Not Working When Vehicle is Started

Question:

Hi guys Im really hoping that you can help me I just bought some new LED lights for my boat trailer the problem is that when I have the car just on ignition only everything works perfect but then when I start the car the blinkers will no longer work but all the other lights work. Hoping that you can help please Best Regards

asked by: Graham E

Expert Reply:

Since the blinkers work before starting the car and only fail to work once the vehicle is started there is only one thing I could possibly think would cause such a problem. I recommend checking your ground connection from your light installation.

More often then not the ground is the problem when it comes to unexplainable wiring problems. Assuming you have lights like the Combination LED Trailer Tail Light - Submersible - 6 Function - 11 Diodes - Passenger Side # STL8RB you want to make sure the white wire with the ring terminal is secure on a clean, bare-metal surface.

I have attached an installation video of these lights for your reference. If that does not fix the problem, feel free to reach out and I will help you troubleshoot further.

expert reply by: Robin H