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A/C Dual Control Module

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Old Sep 11, 2011 | 09:49 AM
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Default A/C Dual Control Module

During a low voltage attempt to crank my car, the dual control a/c/ module displayed "Err", which I assume occured due to low voltage when cranking. I replaced my battery and and the display module is stuck on 73 degrees and will not move when you turn the *****. Sometimes the a/c will not turn off and on and I have tried the disconnect battery/pull fuses/ etc.. fixes, but it doesnt seem to work, I was told that my a/c dual control module in dash needs to be replaced. I don't want to get a used one, where would be the best place to purchase a new one? Is there a DIY replacement sticky for this replacement? Thanks in advance for your responses.
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Old Sep 11, 2011 | 09:55 AM
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From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
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Did you drive your car for a few miles at faster than 45mph? I read that sometimes it won't change till you get the car moving? Just a thought.
Mr.Bill
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Old Sep 11, 2011 | 10:05 AM
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Yep, I drove it several times for longer periods of times, well over 45 mph, still doesnt adjust.
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Old Sep 11, 2011 | 10:11 AM
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From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
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Originally Posted by My99Vet
Yep, I drove it several times for longer periods of times, well over 45 mph, still doesnt adjust.

I am wondering if the err you got is because of the outside tempture sensor? Just a thought, I am trying to figure out and easy fix for ya before you fork out the bucks for a new unit.
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Old Sep 11, 2011 | 10:13 AM
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Outside temp is working fine, sometimes the a/c button wont turn off, sometimes it does
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Old Sep 11, 2011 | 10:19 AM
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From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
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Rockauto.com

ACDELCO Part # 1572949 $285.79

Make sure part number is what you need for your year.
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Old Sep 11, 2011 | 10:23 AM
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Thanks, any installation instructions?
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Old Sep 11, 2011 | 10:29 AM
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From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
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Originally Posted by My99Vet
Thanks, any installation instructions?
You have a PM. Amazon has them for 180 bucks.

This shows how to remove the radio, Just take out the HAVC unit instred of the radio, Same way to do it.
http://www.sound-repair.com/index.ph...-instructions/
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Old Sep 11, 2011 | 10:31 AM
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Thanks!
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