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Headlights & Fog Lights don't work..

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Old 11-22-2010, 09:22 AM   #1
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Headlights & Fog Lights don't work..

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?
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Old 11-22-2010, 09:27 AM   #2
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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.
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Old 11-22-2010, 09:40 AM   #3
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Quote:
Originally Posted by 98tacoma27 View Post
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.
I checked, it's not frozen at all. But I warmed it up inside the house, re-installed and nothing
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Old 11-22-2010, 09:42 AM   #4
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98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed
 
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It could be melted together too.
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Old 11-22-2010, 09:44 AM   #5
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98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed
 
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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.
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Old 11-22-2010, 09:46 AM   #6
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98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed
 
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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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