Always blows defroster and feet no matter what the setting
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2004 Chevrolet Tahoe Question: air blows,a/c & heat, why doesn't the mode work, only blows feet and defroster
POSS BLEND DOOR STUCK OR BROKEN SEEK DIAG AND EST
Mode door or motor that changes the door position may have failed. This problem can be diagnosed with a Tech 2 GM scanner. A few other scanners may be able to do it also but the higher end scanners are needed.
ReplyPARTS GUY, June 12, 2012, 19:21Master
Not just a OBD2 code reader.