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Led headlamps and fog light issues

Discussion in '1st Gen Tundras (2000-2006)' started by whudat4life, Sep 6, 2025.

  1. Sep 6, 2025 at 8:20 AM
    #1
    whudat4life

    whudat4life [OP] New Member

    Joined:
    Feb 24, 2021
    Member:
    #59565
    Messages:
    1
    I recently upgraded my headlamps and daytime running lights to LED as well as installing the capacitor recommended. I ordered two, but if I read correctly, you should only install one so I did so. My issue now is that on low. My fog lights will not work and when I switched to high beams, my fog lights come on, but my headlamps do not brighten at all from the previous setting. What steps do I need to take to resume operation as it was prior to the LED bulb install??
     
  2. Sep 15, 2025 at 6:57 AM
    #2
    shifty`

    shifty` Earth acid cleanses me, cleanses me clean

    Joined:
    Jun 20, 2020
    Member:
    #48239
    Messages:
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    ATL
    Vehicle:
    '06 AC Limited V8/4WD
    (see signature for truck info)
    Resistor, not capacitor. Did you try things without the resistor? Did you try things using one resistor on each headlight?

    Also, which LED headlights did you choose, exactly (brand, model)? If you went with some cheap, generic bullshit off fleaBay or scAmazon, the problem is probably in the shit-quality of the product, not your truck.
     
    The Black Mamba likes this.

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