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Need advice/help with headlight installation.

Discussion in '1st Gen. Tacomas (1995-2004)' started by Taco0416, Dec 26, 2023.

  1. Dec 26, 2023 at 6:05 PM
    #1
    Taco0416

    Taco0416 [OP] Active Member

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    I am trying to instal LED Lights on my 1996 Tacoma but having issues getting the LEDs to work. The old lights work just fine with no issue but going with LED for better lights during long night drives in the super dark mountains.

    While they fit really really well they won’t turn on when plugged into the existing plug. When I attach the LED headlight straight to the battery they work. Same with the original headlights. The issue is they don’t work when plugged into the existing plug. Any advice would be greatly appreciated.

    IMG_1389.jpg
    IMG_1390.jpg
    IMG_1391.jpg
     
  2. Dec 26, 2023 at 9:05 PM
    #2
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

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    Toyota uses a ground signal to turn on lights, were you lights are probably wired with one ground and 2 positive wires. Instead of 2 grounds and one positive wire. See page 13 of the wiring diagram I attached. You can make them work with some additional relays.
     

    Attached Files:

  3. Dec 26, 2023 at 9:16 PM
    #3
    Taco0416

    Taco0416 [OP] Active Member

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    That makes since. For the price of a relay would it pay to just get a H4 headlight relay harness kit from Amazon for almost the same price? Would that also fix the issue or would it still be the same issue?
     
  4. Dec 26, 2023 at 9:18 PM
    #4
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

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    Have a link to the bulbs and harness?
     
  5. Dec 26, 2023 at 9:19 PM
    #5
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

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  6. Dec 26, 2023 at 9:20 PM
    #6
    Taco0416

    Taco0416 [OP] Active Member

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    That’s exactly the one. Would it bypass the issue or would it be the same issue?
     
  7. Dec 26, 2023 at 9:23 PM
    #7
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

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    That would fix your issue. You could use your new led lights with it.
     
    Frog4aday likes this.
  8. Dec 26, 2023 at 9:25 PM
    #8
    Taco0416

    Taco0416 [OP] Active Member

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    Thank you so much for your help! I will order the piece tonight and post an update. Thank you again
     
    mechanicjon likes this.

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