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Automatic Climate Control Display Broken

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Old May 3, 2009 | 02:19 PM
  #1  
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Default Automatic Climate Control Display Broken

Hello,

I have a 2001 Corvette with the automatic climate control in the center console. The lights that show you the settings go off and on. At this point they are almost always off. The last time I went by my local Chevy Stealership I asked them about the problem. They told me there was no repair they could (would) do to the unit and that it had to be entirely replaced and it would cost an arm and a leg.

So I started poking around on Ebay the other day and decided to try and do a search for the climate control unit. There were several refurbished units that you could buy for around $200 which was much cheaper than the dealer price. There were a couple of different people who were selling the instructions on how to repair this unit if it had problems with the display. It claims that all you need is a few tools and the ability to perform a fairly simple solder. It doesn't mention anything about any additional electrical parts that might need to be replaced.

Has anyone had a similar problem with the display on their control? Is there any chance that these instructions will work? I mean for $16.99 I am thinking it might be worth taking the chance since the alternatives are so expensive.

-Mike
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Old May 3, 2009 | 02:21 PM
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check with tstar i think he was doing repairs
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Old May 3, 2009 | 02:50 PM
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Why not leverage the knowledge contained within the forum? Check out the Ultimate DIY sticky.
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Old May 3, 2009 | 02:59 PM
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Originally Posted by MagRedConv
Why not leverage the knowledge contained within the forum? Check out the Ultimate DIY sticky.
Easy repair for anyone that has soldering skills, small components on PCB.

http://forums.corvetteforum.com/c5-t...t=hvac+display

Last edited by byronhunter; May 3, 2009 at 03:01 PM.
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Old May 3, 2009 | 03:33 PM
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You know you are absolutely right, I should have check the DIY first. The link from byronhunter looks like it is just what I need. Thanks for all the help and I will post an update on how worked out for me in case someone searches for this in the future.

-Mike
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Old May 3, 2009 | 03:51 PM
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Easy stuff!
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Old May 3, 2009 | 08:03 PM
  #7  
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I want to thank you guys for the help. A - for not flaming because I didn't look at the DIY first, and B - for having such a great resource.

I followed the steps in the link above and it was too easy. I am fairly mechanically inclined but don't have much experience with soldering or electrical work. If you are like me and thinking about taking this on yourself don't be scared, you can do it.

I went to Radio Shack and got a Hot/Cold Cordless Soldering gun for $20 and I got the .022 rosin core solder too. With 4 AA batteries I was out the door for around $30. The steps in the DIY are so well defined it was easy to follow them exactly. I was a little nervous about soldering the parts because I haven't done anything like that in at least 10 years. The Hot/Cold gun is a little tricky because the tip is pretty big for this job and you have to get things just right for the heat to turn on.

When I tried the first one the opposite side must have been loose because as soon as I heated on side up it slipped out of position. I enlisted the wife with a small flat head screwdriver to apply a little pressure to each one as I worked. I found that I could put the iron a little higher up sort of at the elbow of the little microchip(?) and then slid the solder underneath. I couldn't see exactly what I was doing but there is a little gap in the tip so I could see when the solder started to bubble up. I just took my time and worked my way around to every side of every chip.

This was in my wife's car and when we plugged it in to test the work and the numbers lit up she practically squealed with glee. Fixing her corvette might be the only way I can make her this happy.


The dealer wanted something like $370 for the part and like $270 for labor. How they can justify charging $270 for labor I will never know. It took me like an hour. Thanks again to everyone for the help.

-Mike
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Old May 3, 2009 | 08:33 PM
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Originally Posted by mvaneps
I want to thank you guys for the help. A - for not flaming because I didn't look at the DIY first, and B - for having such a great resource.

I followed the steps in the link above and it was too easy. I am fairly mechanically inclined but don't have much experience with soldering or electrical work. If you are like me and thinking about taking this on yourself don't be scared, you can do it.

I went to Radio Shack and got a Hot/Cold Cordless Soldering gun for $20 and I got the .022 rosin core solder too. With 4 AA batteries I was out the door for around $30. The steps in the DIY are so well defined it was easy to follow them exactly. I was a little nervous about soldering the parts because I haven't done anything like that in at least 10 years. The Hot/Cold gun is a little tricky because the tip is pretty big for this job and you have to get things just right for the heat to turn on.

When I tried the first one the opposite side must have been loose because as soon as I heated on side up it slipped out of position. I enlisted the wife with a small flat head screwdriver to apply a little pressure to each one as I worked. I found that I could put the iron a little higher up sort of at the elbow of the little microchip(?) and then slid the solder underneath. I couldn't see exactly what I was doing but there is a little gap in the tip so I could see when the solder started to bubble up. I just took my time and worked my way around to every side of every chip.

This was in my wife's car and when we plugged it in to test the work and the numbers lit up she practically squealed with glee. Fixing her corvette might be the only way I can make her this happy.


The dealer wanted something like $370 for the part and like $270 for labor. How they can justify charging $270 for labor I will never know. It took me like an hour. Thanks again to everyone for the help.

-Mike
It's posts like this one that show just how valuable the Forum is. Glad it worked out for you.
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Old May 3, 2009 | 09:35 PM
  #9  
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Man, that's great. Congrats on the fix!
Did anyone else notice the timeline on this repair?
4 1/2 hrs from deciding to do it till posting the results, including a trip to Radio Shack!! Now that's what I call gettin it done. Excellent job, thanks for the update.
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Old May 4, 2009 | 07:21 AM
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yep the writeup's here are great. I did my own writeup when i did mine along with replacing all the bulbs in there. great stuff
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Old May 6, 2009 | 12:51 PM
  #11  
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Do you guys know if the up and down fan buttons are supposed to be lit up at night?

Everything else works, but I cant remember if the up and down arrows (mine are dark) were ever lit up.
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Old May 6, 2009 | 12:52 PM
  #12  
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http://media.photobucket.com/image/c...g/DSC01049.jpg
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Old May 6, 2009 | 01:16 PM
  #13  
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I guess I do have a bulb out.
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Old May 6, 2009 | 02:26 PM
  #14  
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The lamps are incandescent types, therefore over time, they will burn out. As stated already, get the lamps and solder them in. There are 14 altogether. Replace all of them at the same time. Forum member Tstar has the best source info on obtaining the correct lamps. 70ma work best.
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Old May 6, 2009 | 05:59 PM
  #15  
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Originally Posted by mvaneps
Fixing her corvette might be the only way I can make her this happy.

Try bringing home some chocolate tomorrow....
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Old May 6, 2009 | 06:30 PM
  #16  
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This was one of the first problems that I had to address on the car when I bought it 2 months ago, and the forum was very helpful!!!
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