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    Trailer lights troubleshooting help

    Definitely going to ground each light individually too
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    Trailer lights troubleshooting help

    Sorry for any confusion, it is a 4 pin harness and that picture is the ground at the harness. I think I've found the issue. I was taking off the clearance light cover and removing the bulbs in each of them to check for an overload scenario. One of the lights, the metal plate that the bulb makes...
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    Trailer lights troubleshooting help

    Ok so this is what I tried tonight: 1) hooked up trailer on ball to see if it would ground. No lights. 2) rechecked all of the fuses (towing signals, towing brakes, towing lights) all are fine - see picture below. No lights. 3) Double checked ground area for corrosion, put more dielectric...
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    Trailer lights troubleshooting help

    Yeah, I checked the fuses both for tail lights and the brake lights on the tow package and they work. The linkage that takes it from 7 pin to 5 pin lights up as well meaning theres power. I'll try the ground test as well. I just backed my truck up and connected the lights but not the ball.
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    Trailer lights troubleshooting help

    I'll give that a shot tonight
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    Trailer lights troubleshooting help

    I'm wondering if someone can help me trouble shoot an issue with my trailer lights. I've got an old Alumacraft fishing boat on an old trailer. The lights are similar to if not these exact ones https://www.etrailer.com/Trailer-Lights/Optronics/TL5RK.html. Last year I replaced the whole left tail...
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