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Fail!! tried installing leds in hvac. please help

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Old Oct 29, 2010 | 01:01 AM
  #26  
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From: VA Beach
Originally Posted by 09xfebalt
I can BS I used 12 leds that DO NOT have any resitor can take pics if you like.
lol take a picture please cause i've never seen one...show me a single diode that works in a 12 volt application and i'll be impressed.....but if its 2-6 diodes strung together to one connection i'll just lol.
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Old Oct 29, 2010 | 07:15 AM
  #27  
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Originally Posted by EmperorJJ1
show me what? yes its possible to use leds without resistors in an application that uses less voltage or multiple leds wired properly. but what does that have to do with my statement that there is no such thing as a 12v led? to be honest im probably a liar. i bet there is an led that takes 12v but its not going to be a standard looking led and nothing u can just pick up at radioshack or walmart or anything like that. no offence to the OP but someone looking at a real 12v led isnt going to be asking that question. im just saying
I would like to make reference to this How To post : https://www.cobaltss.net/forums/how-...ck-led-205878/
In which the author clearly uses 12v LED's that do not have a resistor attached.

And here is the link that the OP of said post provided for the website from which he ordered 12v LED's: 12 Volt LED
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Old Oct 29, 2010 | 09:16 AM
  #28  
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Back to my problem. I visually checked every fuse now and still nothing? Somebody said reversing the positive and negative could stop the current. Is this true? If so how can I get the current going again?
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Old Oct 29, 2010 | 11:32 AM
  #29  
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It doesn't literally stop the current from flowing to the board, they just meant that LED's only work in one direction. If you wire them up backwards they just won't light up. You should check out the How TO thread I referenced above its really well written and walks you through the process step by step with pictures.
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Old Oct 29, 2010 | 01:15 PM
  #30  
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Originally Posted by scottydoh
It doesn't literally stop the current from flowing to the board, they just meant that LED's only work in one direction. If you wire them up backwards they just won't light up. You should check out the How TO thread I referenced above its really well written and walks you through the process step by step with pictures.
just the leds in the hvac controls wont light up? or all interior lights in the car such as the cluster and steering wheel control buttons. thats my problem, all my lights stopped working
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Old Oct 29, 2010 | 01:48 PM
  #31  
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the individual LED's won't light up...if you having problems with everything just like everyone else, I'd say you shorted something and blew a fuse
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Old Oct 31, 2010 | 06:48 PM
  #32  
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also realized tonight that my taillights arent lit either. ill replace the bulbs tomorrow to see if thats it but maybe its connected to my problem
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Old Oct 31, 2010 | 07:17 PM
  #33  
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you checked both fuse boxes?

Originally Posted by scottydoh
I would like to make reference to this How To post : https://www.cobaltss.net/forums/how-...ck-led-205878/
In which the author clearly uses 12v LED's that do not have a resistor attached.

And here is the link that the OP of said post provided for the website from which he ordered 12v LED's: 12 Volt LED
well i stand corrected.
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Old Oct 31, 2010 | 07:22 PM
  #34  
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yes i checked both . this really sucks. i dont think the taillights are related but still, my entire interior lighting other than the ones in the rearview mirror dont work
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Old Nov 1, 2010 | 05:16 AM
  #35  
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nope. either gm lan is fucked, the interior lights fuse is blown (inside fusebox) or theres a short in the wiring somewhere. hvac control isnt nessicary at all it can be unplugged completely without harming the car. if u havent tried unplugging it do so but if nothing changes then that sorta eliminates that as the problem
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Old Nov 1, 2010 | 06:15 AM
  #36  
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rip everything out and bring it to the dealer and be like wtf my lights
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Old Nov 1, 2010 | 02:17 PM
  #37  
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I actually have a HVAC cluster if you need it.....its working perfect, just needs some graphite wiped off it from when the cops dusted for prints when my radio got jacked couple years ago. let me know.
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Old Nov 2, 2010 | 12:48 AM
  #38  
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Originally Posted by c4w18
I actually have a HVAC cluster if you need it.....its working perfect, just needs some graphite wiped off it from when the cops dusted for prints when my radio got jacked couple years ago. let me know.
really? how much?
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Old Nov 2, 2010 | 01:08 AM
  #39  
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make an offer lol. how's $15+shipping?
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Old Nov 2, 2010 | 02:41 PM
  #40  
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From: Beiseker AB Canada
Originally Posted by kento19
also realized tonight that my taillights arent lit either. ill replace the bulbs tomorrow to see if thats it but maybe its connected to my problem
Well, that would explain it - your park lamp fuse is blown. Since the cluster circuit gets it's power AFTER the park lamp fuse, they go out too.

This lets you know your tail lights are out when your driving at night, GM has been wiring them like that since the 60's

Do believe the fuse is in the under hood box......
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Old Nov 2, 2010 | 05:39 PM
  #41  
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Perfect you were right. Park lamp fuse blown. Thanks for all your help. I don't need to buy the cluster but thanks anyway.
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Old Nov 2, 2010 | 06:15 PM
  #42  
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np man glad you didn't have to buy anything to fix your ****, i wish i had that problem
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Old Nov 2, 2010 | 07:41 PM
  #43  
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No worries, glad you got it sorted
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