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Originally Posted by ckabka3a
I have a same problem on my 2001 GC I6,
when AC is ON, passanger side gets worm air and driver side - cold.
Can't get any codes to show up, don't know how to do that, though.
Any help would be appreciated.
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I don't know if this procedure also applies to GC models without dual zone climate control, but if you have this system here's how to get the error codes for the HVAC :
1) Turn on the system
2) Press and hold down the a/c and recirc. buttons together
3) Turn a temp. control dial one click
4) Release the a/c and recirc. buttons. The error codes should now
flash across the digital display screen.