Need help with HVAC problem...
05-06-2006, 10:06 PM
#1
Need help with HVAC problem...
Recently my truck has developed an HVAC problem that has progressively gotten worse. Started with just a cycling 2 seconds front vents to 1 second defrost vents. It is to the point now where it will only blow air through the defrost vent and I have lost the highest fan setting.
I have a BCM error code being thrown relating to Airflow Control Circuit #6.
Does anybody know where this circuit is located on an 03 Silverado SS with manual HVAC controls?
Thanks
Justin
I have a BCM error code being thrown relating to Airflow Control Circuit #6.
Does anybody know where this circuit is located on an 03 Silverado SS with manual HVAC controls?
Thanks
Justin
05-06-2006, 10:40 PM
#2
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Sounds like the vac controler on the damper door has gone bad. I had this in my 03 f150. Turned out to be a vac valve that wet bad. My advise is to get a helms/chilton manual. They have a break down of where each circut is and how to trouble shoot.
05-06-2006, 11:02 PM
#3
Originally Posted by MonteCarlo31
Sounds like the vac controler on the damper door has gone bad. I had this in my 03 f150. Turned out to be a vac valve that wet bad. My advise is to get a helms/chilton manual. They have a break down of where each circut is and how to trouble shoot.
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