Replaced electrical adapter on vehicle, now not all the lights work.

Discussion in 'Wiring' started by insaniak, Mar 12, 2016.

  1. insaniak

    insaniak New Member

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    I smashed my old electrical adapter on a rock while rock crawling and replaced it with an aftermarket Hopkins one.

    The lights now work a little odd.

    With my vehicle lights off, everything is normal and works fine. Brakes, Hazards, left and right signals.

    With my vehicle lights on, everything EXCEPT the left turn signal (and left signal with hazards) works.

    Now since that light works with my vehicle lights off, it is obviously not the bulb. I'm not sure how this could have happened though.
     
  2. Novarich

    Novarich Active Member

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    What kind of plug is it ? 7-flat blade rv, 4-pin flat, 6-pin round?
     
  3. tombiasi

    tombiasi Well-Known Member

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    Since you say you damaged the unit on rocks take a look under there and see if you also damaged any of the wires.
     
  4. insaniak

    insaniak New Member

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    The electrical adapter only got smashed on some rocks, it didn't tear out anything. Unplugging and replacing was easy. Nothing else looks damaged.
     
  5. insaniak

    insaniak New Member

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    My old one was a standard 7 way and this new one is a 7 way and 4 way combo adapter. My trailer uses the 7 way.
     
  6. Beecoach

    Beecoach Member

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    These anomalies are usually caused by a bad ground somewhere.
     
  7. Beecoach

    Beecoach Member

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    Insaniak, did you get it fixed?
     
  8. insaniak

    insaniak New Member

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    I did not. I have not done anything else to it since the post.

    I did grab my old one that I still had that I know it worked before and I'm going to put it on to test this weekend and see if it works or not to see if maybe the new one is defective or something else is up.

    Also when the last one broke I just took it off and left it exposed for about 3 months during the winter so there's a good chance water got in there during the winter.
     
  9. Beecoach

    Beecoach Member

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    Had the same symptoms before, worked fine until I turned the lights on. In that case it was a bad ground. With it exposed all winter, if you have enough slack maybe cut off the corroded ends and try again.
     
  10. insaniak

    insaniak New Member

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    Is that what you did? Did you rewire the plug in connections on the harness on the vehicle?
     
  11. Beecoach

    Beecoach Member

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    Yes, and cleaned and tightened all the clearance and tail light connections too.
     
  12. insaniak

    insaniak New Member

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    Where is the ground? is it on the specific light or is it the main one towards the front of the frame?
     

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