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    tmeyer01's Avatar
    tmeyer01 Posts: 137, Reputation: 1
    Junior Member
    		  
    #1

    May 22, 2016, 08:45 AM
    Trailer lights not working correct, which wire?
    So I have tried everything. Even bought all new brand new lights, wires, etc. I have the tail lights and turn signals working but the brake actually turns the lights off? What could be causing this? Thanks,
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    May 22, 2016, 11:17 AM
    Your owners manual should tell you what is needed. Some cars can use a 4 pole, some need a 5. Depends on how the brakes are wired with the turn signals.
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #3

    May 23, 2016, 03:33 AM
    It sounds like you may have a poor ground. Don't assume the hitch has a good connections. Make certain the White wire has a clean secure ground on both the vehicle and the trailer.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #4

    May 23, 2016, 09:47 AM
    I'd focus on the hitch and clean all connections, particularly grounds.
    tmeyer01's Avatar
    tmeyer01 Posts: 137, Reputation: 1
    Junior Member
    		  
    #5

    May 31, 2016, 10:40 AM
    Thanks. I have tried running directly from the adapter, brand new harness, right to some brand new tail lights and ground to trailer frame and still same outcome. I took all other connections and wires out of the equation to troubleshoot. Crude diagram attached. I even plugged my other trailer in to see what would happen there and got the same thing? Seems like it might actually be an issue starting with the vehicle?Attachment 48358
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