CruellaDeVille Posted July 21, 2010 Report Share Posted July 21, 2010 I have a '99 Deville with the dual climate zones. Just resently it starting blowing warm air out of the passenger vents, but only on occassion. The controller is turned off on the passenger side. Even it I turn it on and put it to cold it still blows warm air. Any ideas as to what might be wrong? Thanks! Link to comment Share on other sites More sharing options...
Ranger Posted July 22, 2010 Report Share Posted July 22, 2010 Start by pulling the DTC's. Link to comment Share on other sites More sharing options...
CruellaDeVille Posted July 22, 2010 Author Report Share Posted July 22, 2010 Start by pulling the DTC's. Will do. Are they easy to access from the dash or should I use an actual device that plugs into the car? Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 22, 2010 Report Share Posted July 22, 2010 Go to the top of the page click www.caddyinfo.com, then HOW TO, then DTC CODES, then follow the directions on how to pull the codes for your year and post the codes here Or go here to find out what they mean http://myweb.accessus.net/~090/dtcobd2.html Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
CruellaDeVille Posted July 22, 2010 Author Report Share Posted July 22, 2010 Go to the top of the page click www.caddyinfo.com, then HOW TO, then DTC CODES, then follow the directions on how to pull the codes for your year and post the codes here Or go here to find out what they mean http://myweb.accessus.net/~090/dtcobd2.html Perfect. Thank you for all of the info. I really appreciate it. Link to comment Share on other sites More sharing options...
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