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Headlights won't turn off, even with ignition off

Discussion in '1st Gen. Tacomas (1995-2004)' started by 186000mps, Apr 13, 2013.

  1. Apr 13, 2013 at 6:54 AM
    #1
    186000mps

    186000mps [OP] ..Slingin' up mud and we're scarying off bunnies..

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    Looking for a little help from my Tacoma brethren.
    A guy just stopped by, he noticed all the toyotas in my driveway. He has a 1st gen Tacoma (no mods) and explained to me for the past few days his headlights would stay on even with the ignition off. He went to several auto parts stores, but no one could help him diagnose the situation. Can anyone think of a cause for this? It has been rainy and sleety here lately.
    My thought is possibly a short somewhere allowing power to the lamps.
    I asked him to stop by later and I'd look at it. In the meantime, I thought I'd post the question here.

    Thanks !
     
  2. Apr 13, 2013 at 7:10 AM
    #2
    bubba353z

    bubba353z Titles? We don't need no stinkin' titles.

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    Bad relay?
     
  3. Apr 13, 2013 at 7:44 AM
    #3
    186000mps

    186000mps [OP] ..Slingin' up mud and we're scarying off bunnies..

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    Hmm maybe
    I think I have a spare relay..I'll give it a try and post results
     
  4. Apr 13, 2013 at 12:09 PM
    #4
    186000mps

    186000mps [OP] ..Slingin' up mud and we're scarying off bunnies..

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    Not the relay
    Just swapped my working relay with the suspect one and same issue, lights on without ignition on. Checked all wires and nothing seems amiss externally. Wasn't able to help him today. But I will forward any suggestions to him if anyone has any ideas.
     
  5. Apr 13, 2013 at 2:05 PM
    #5
    TejasYOTA

    TejasYOTA Countinuous improvement

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    Check the TTORA Garage Section....
    Most likely the headlamp stock switch.
    Have him pull it and look at the connections - if he sees brown tint (darker than the copper) or black tint, the switch is bad and needs to be replaced.
    He can find them online.

    Forgot to show you what I mean...
    75685698-bc69-4dca-be73-35e862c1e7b1_33176071f5f33b7c8cbaf885211aa7ca1e370e5d.jpg

    Look at the terminals inside both the stock and steering column.
    IMG_0998_93b1117359e7706d4d29c32eaaca04c2710960e5.jpg

    Yes... I had to replace mine, due to my battery shorting out one time.
    The hard part was to make sure you only order what you see and not everything. Sorry forgot what the part number I used.
    If I find it I will post it.
     
    Last edited: Apr 13, 2013
  6. Apr 13, 2013 at 5:25 PM
    #6
    tan4x4

    tan4x4 Well-Known Member

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    I can turn my headlites on, without the ignition on, or even the key. :confused:
    All cars work this way.

    So I'm not understanding the issue here. Are you saying that you simply can't turn them OFF?
     
  7. Apr 13, 2013 at 6:13 PM
    #7
    SDSam

    SDSam from Dirt bike to Dezert Couch

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    ^^re-read slowly^^
    Simple test disconnect one headlight and test. Do the opposite headlight. If nothing then test light or DVOM backtracking for shorts from the headlight sockets back to fusebox all the way back to switch and alway testing in both high and low beams. Looking also for burn or melted sections in wiring.
    Good luck
     
  8. Apr 13, 2013 at 9:27 PM
    #8
    186000mps

    186000mps [OP] ..Slingin' up mud and we're scarying off bunnies..

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    Correct, they do not off when switch is in the off position. Perhaps that is a better description.
    We temporarily disabled them by pulling the fuses.
    I'll look into testing for a faulty switch next.
     
  9. Apr 14, 2013 at 1:21 PM
    #9
    186000mps

    186000mps [OP] ..Slingin' up mud and we're scarying off bunnies..

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    It turned out to be the headlight switch.
    We didn't have time to pull the steering wheel and remove the column covering to test each terminal, but when we finessed the switch we were able to turn them off.
    Thank you all for your help and input.



     
  10. Jun 26, 2017 at 1:02 PM
    #10
    DELPIERO10

    DELPIERO10 Active Member

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    MY FRIEND, HOW DID YOU FIX IT?

    BECAUSE I HAVE THE SAME ISSUE BAK WITH MY BRAKE LIGHTS, I TURN OFF THE TRUCK AND THEY STAY ON, AND ALSO WITH THE TRUCK ON THEY ARE ON WITHOUT PUSH THE BRAKE PEDAL

    REGARDS
     
  11. Jun 27, 2017 at 12:06 AM
    #11
    DrZ

    DrZ Well-Known Member

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    You're way off. The brake lights are a completely different circuit. Most likely the little rubber cushion that contacts the stop light switch disintegrated and fell off of the brake pedal. The tell-tale sign is the small pieces of hard rubber on the floor under the pedals. You can get a new rubber cushion for about $1 from Toyota.

    90541-06036 Cushion
     
  12. Jul 1, 2017 at 5:15 PM
    #12
    DELPIERO10

    DELPIERO10 Active Member

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    Thanks my friend

    I will check it
     
  13. Jul 1, 2017 at 6:00 PM
    #13
    DELPIERO10

    DELPIERO10 Active Member

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    I just checked

    Thanks so much I fix it and my headlights are ok too

    Regards
     
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