Automatic Climate Control Issues
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 5,808
Likes: 1
From: Sierra Foothills California
Automatic Climate Control Issues
My 2000 automatic climate control is acting erratically. When I push the "Auto" button the a/c fails to come on (outside temp 98 degrees). I can turn on the a/c manually and adjust the fan speed etc. I've checked the dic, and there are no codes set in the HVAC module. Any hints on where to start looking? The temp. lcd is normal brightness.
Thanks
Thanks
Race Director
Joined: Oct 2004
Posts: 13,587
Likes: 1,352
From: Home of the VOLS ! Knoxville, TN. Tennessee
St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
My 2000 automatic climate control is acting erratically. When I push the "Auto" button the a/c fails to come on (outside temp 98 degrees). I can turn on the a/c manually and adjust the fan speed etc. I've checked the dic, and there are no codes set in the HVAC module. Any hints on where to start looking? The temp. lcd is normal brightness.
Thanks
Thanks
Race Director
Joined: Aug 2003
Posts: 13,421
Likes: 8
From: Lake Mary Florida
Could be a controller fault (that is the head unit there). Does it get really cold when you manually turn it on?
Took a quick scan of the FSM, the Scan tool can detect whether the AC Mode button is working. On provides a path to ground.
Took a quick scan of the FSM, the Scan tool can detect whether the AC Mode button is working. On provides a path to ground.
Last edited by Jet-Jock; Sep 8, 2008 at 08:50 PM.
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 5,808
Likes: 1
From: Sierra Foothills California
It seems to get just as cold (manually) but the temp. **** won't increase from 60-61 degrees (ambient temp is around 96-100 degrees. I' don't think I've ever tried to increase the temp. when it's that hot outside, but I'd think you should be able to set it at 70 or so.
Pro
Joined: Sep 2007
Posts: 735
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From: Bucks County Pa
Tech Contributor
Joined: Dec 2003
Posts: 19,384
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Another vote for the HVAC controllerI'm not sure how much a new unit would cost but I suspect it would be pricey. You could try this CF Vendor that Z06 Jim recommended. He may find you a used spare.
http://forums.corvetteforum.com/show...post1562895126
