Why do both my boat trailer lights blink when I turn on the running lights?

David B asked:

Boat trailer lights both blinking when I turn on the running lights on my Nissan truck. I have ok signal from the light converter box. I have replaced both tailight units. Strange things is when I plug into our van all the trailer lights then work?
How do I check all the grounds? I am ready to go have it fixed…
Any advice, or help will greatly be appreciated….thanks

2 Responses

  1. herowithgreeneyesandbluejeans Says:

    It’s not the ground, it’s the hot wires that are not in sync. The plug on your car wired wrong.

  2. Ken E Says:

    On Japanese brand vehicles you need to get a converter wiring box. The Japanese vehicle’s brake and tail lights are wired differently than other vehicles. I’ve seen them for sell in WalMart and U-Haul. Part stores would probably have them as well. Or you could get them online.

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