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This car has a really tricky air flow system to diagnose. Most cars have one or two damper/blend motors which change the position of the air flow control dampers. Your car has 8. We need to pinpoint which one isn't working. Here is the diagram that shows the motors.
These are the two dampers that I suspect are causing the problem.
I wanted to check up and see if you needed any additional help. I hope I have been of some assistance to you and would appreciate a positive rating if I have.