NEED HELP diagnosing ACC problem - No Heat - Saab 9000 Bulletin Board - Saabnet.com
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NEED HELP diagnosing ACC problem - No Heat
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Posted by ChrisM [Email] (more from ChrisM) on Tue, 8 Mar 2005 05:45:52 Share Post by Email
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1991 9000t - Gentlemen here are the symptoms hopefully someone can tell me what's wrong with my ACC and why I'm not getting any heat. There is power to the ACC unit and i have checked fuses, fluid level is good. The blower works fine and the speed controls do as well but i'm just blowing cold air. One thing that is odd is that no matter what duct I choose for the air to blow it will not shift off of the defrost setting. THe ACC system will light for the floor or dash but it will still blow thru defrost. I recently had a problem with the Pump relay for the power brakes draining my battery and that has been corrected. THe manual indicates that the system must re-calibrate after a power loss by pushing the AUTO button then the dash vent button - I've tried this several times several different ways with no luck. Thanks in advance!

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