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DIY Climate Control Light Bulb Replacement

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6 replies to this topic

#1 Crazyguy03


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Posted 19 October 2011 - 09:41 PM

Ok so I looked around and the only fix I could find was for the fading display. That fix describes re soldering the resistors or replacing them.
However, if your having a problem like me, then you will notice that some of your buttons may not light up anymore. This is due to fragile bulbs on the board.
While working on the board, I noticed more of the bulbs burning out just by handling/moving the board. Just to be sure there would be no problems down the road, I replaced all (9) bulbs with new ones. I recommend this.

Parts List:
12v bulb from Radio Shack Part# 272-1154
Soldering Iron
optional super glue

Follow the instructions on how to remove the climate control

Next I took out the (4) 3/16 bolts and removed the cover to access the top portion on the pcb or printed circuit board.
Posted Image
using a 12v source, you can apply voltage to any bulb and see which ones are out. Again, I replaced all of them.

Using a solder iron, heat the leads coming off the bulbs on the back side of the board and pull up. Be patient, takes some time to all (9)
Posted Image

Once removed, remove all the blue rubber covers and put aside. I used head light access covers to place all the parts so they wont get lost
Posted Image

Now you should have something that looks like this
Posted Image

Use the new bulbs from Radio Shack
Posted Image
Posted Image

Using the tip of the iron, re-heat the solder points from the back side while placing the bulb on the front side. Apply pressure and work back and forth from one terminal to the other. It will eventually slide right in. Then just go back and add tiny amount of new solder to make a solid connection

Posted Image

and dont forget the blue covers
Posted Image

The covers may be a bit loose, I used small dot of superglue at the base of the bulb before putting the rubber covers back onto the bulb

To ensure it works, you can apply 12v to any bulb and they should all light up again

total time to do board with parts already bought was an hour
total time to remove the climate control was about an hour
then to put it all back together, another hour

to play it safe, Id put aside 4 hours for this including part run
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#2 OhMyGS


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Posted 19 October 2011 - 10:17 PM

Nice writeup. This will be very helpful. +1

Headlight caps make excellent parts trays too...lol.

Edited by OhMyGS, 19 October 2011 - 10:18 PM.

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#3 Crazyguy03


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Posted 30 November 2012 - 04:54 PM

These bulbs also can be used for other fixes I just re did my fog light buttons and going to see whats inside the heated seats button next

Edited by Crazyguy03, 30 November 2012 - 04:56 PM.

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#4 ChrisL



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Posted 30 November 2012 - 06:20 PM

$2.19 each bulb at Radio Shack- Is that correct? I had the fading issue and attempted the fix with no success. Went to the JY and got one and the display works but all the bulbs are out. Makes it difficult to change the settings at night. Did you do the fading fix as well and if so, would you consider this an easier or more difficult fix?
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#5 Crazyguy03


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Posted 30 November 2012 - 06:49 PM

Prices could vary from place to place or over time.
I just re-soldered the existing resistors and connections both in my gauge cluster and hvac unit.

Honestly the part that wasnt the hardest but most time consuming was removing the bulbs. You have to place the soldering iron on the existing solder till it liquifies at same time pulling the old bulb out.
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#6 delta88


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Posted 19 May 2013 - 06:48 AM

FYI if you are at the yard looking for these bulbs they can also be found inside Oldsmobile radios. Regal radios use a different bulb. Although I picked up two Olds radio boards for the bulbs most all of the bulbs were burnt out in those.. wtf???
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#7 xtremexnyc


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Posted 05 August 2018 - 09:24 PM

Crazyguy03. Pics ar not showing up anymore.
Would you happen to still have them? If so would it be possible to upload them?

Thank you very much
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