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Headlights & Fog Lights don't work..

Discussion in 'Lighting' started by ShiftGear, Nov 22, 2010.

  1. Nov 22, 2010 at 8:22 AM
    #1
    ShiftGear

    ShiftGear [OP] Well-Known Member

    Joined:
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    TRD Sport
    So last night I came home from work, parked the truck and shut it off. All the switches, everything off. I have a 2010 Tacoma TRD Sport.

    Anyways, this morning at 5 am I go to start the truck and to turn on the headlights/Foglights. It's only -7 degress celcius here. Nothing.. no light at ALL.

    All interior lights work
    Day time running lights work
    brake lights work

    Low Beam headlights dont work
    fog lights don't work
    HIGH BEAM lights WORK..

    I am so confused.. what could of happened? I called Toyota but they can't get me in until friday :( So I have to drive at night/early morning with my high beams on and that's going to piss off ALOT of people. So maybe I can fix this myself before friday?
     
  2. Nov 22, 2010 at 8:27 AM
    #2
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    It sounds like your DIM relay is stuck closed. It could be frozen. Pull it out of the truck and bring it inside to thaw, reinstall and see what happens.
     
  3. Nov 22, 2010 at 8:40 AM
    #3
    ShiftGear

    ShiftGear [OP] Well-Known Member

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    TRD Sport
    I checked, it's not frozen at all. But I warmed it up inside the house, re-installed and nothing :(
     
  4. Nov 22, 2010 at 8:42 AM
    #4
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

    Joined:
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    Messages:
    48,164
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    It could be melted together too.
     
  5. Nov 22, 2010 at 8:44 AM
    #5
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

    Joined:
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    Messages:
    48,164
    Gender:
    Male
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    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    You're heater realy is the same type of relay. You can use it to see if the headlights function. If you put it in the DIM socket and they work like they should, the it's the DIM relay that's bad.
     
  6. Nov 22, 2010 at 8:46 AM
    #6
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

    Joined:
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    Messages:
    48,164
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    If you are familiar and have access to a multimeter, you can check for continuity on pins 3 and 4. If you have continuity on pins 3 and 5 with no power applied to the relay, then the points are stuck together.
     
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