2005 trail blazer-power windows won't work and a/c only blows from the bottom

All the power windows are inoperative ?
Power Window System Components
The power window system consists of the following components:
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Driver door module (DDM)

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Passenger door module (PDM)

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Body control module (BCM)

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LR power window switch

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RR power window switch

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Window up and window down relays in each of the rear passenger window switches

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Window lockout switch

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Reversible power window motors in each of the doors (circuit breaker protected)

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LT DOOR CB 25A (System power for left rear window)

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RT DOOR CB 25A (System power for right rear window)

Are you aware of the electronics involved ? control modules - computers ? Are you good diagnosing electrical problems . Do you own a professional scan tool ?

1. Install a scan tool.
2. Monitor the Driver Window Status Data parameter in the driver door inputs list.