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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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    Bilstein 5100's, Toytec front adjustable coilover kit, Exporear leafs, Fox resi rears, Slotted & Drilled front rotors, 33x12.50 BFG ATs on Outlaw II 15 x 10s, Bushwacker cutout flares, K&N cold air intake with aluminum sheathing water baffles, ARB bumper with XD9000 winch with wireless remote, IPF 900XS lights, Flowmaster cat-back exhaust, Rhino bed liner, UWS gullwing toolbox with tools and recovery gear. 48" Hi-Lift Jack secured under toolbox.
    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...
    [​IMG]

    Look at the terminals inside both the stock and steering column.
    [​IMG]

    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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    01 Tacoma V6 4WD
    Bilstein 5100's, Toytec front adjustable coilover kit, Exporear leafs, Fox resi rears, Slotted & Drilled front rotors, 33x12.50 BFG ATs on Outlaw II 15 x 10s, Bushwacker cutout flares, K&N cold air intake with aluminum sheathing water baffles, ARB bumper with XD9000 winch with wireless remote, IPF 900XS lights, Flowmaster cat-back exhaust, Rhino bed liner, UWS gullwing toolbox with tools and recovery gear. 48" Hi-Lift Jack secured under toolbox.
    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..

    Joined:
    Aug 29, 2011
    Member:
    #62581
    Messages:
    777
    Gender:
    Male
    First Name:
    Charles
    Wimberley, TX
    Vehicle:
    01 Tacoma V6 4WD
    Bilstein 5100's, Toytec front adjustable coilover kit, Exporear leafs, Fox resi rears, Slotted & Drilled front rotors, 33x12.50 BFG ATs on Outlaw II 15 x 10s, Bushwacker cutout flares, K&N cold air intake with aluminum sheathing water baffles, ARB bumper with XD9000 winch with wireless remote, IPF 900XS lights, Flowmaster cat-back exhaust, Rhino bed liner, UWS gullwing toolbox with tools and recovery gear. 48" Hi-Lift Jack secured under toolbox.
    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.



     
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