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Auto Climate Stuck In Defrost Mode
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862001
Hello, I have a 2004 Suburban LT 2500 with the auto climate control. This all seemes to have started after I had a loose battery connection. The climate control seems to be in a default mode and is stuck on defrost, the fan speed and temp does work correctly, I just cannot get air to come out of vents or the floor settings.
I also noticed the AC comppresor clutch is not engaging.
I did some resaerch and found this sevice bulletin, 04-01-38-008 dated 6-17-2004.
It know it may be just a coincidence regarding the battery connection, but it did work fine untill then.
I also switched out the AC relay under the hood and it did not help.
Any help on this will be greatly appreciated.
John
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