GM Service Manual Online
For 1990-2009 cars only
Figure 1:

HVAC Components


Object Number: 1469256  Size: LF
(1)HVAC Module
(2)Mode Actuator
(3)Air Temperature Actuator Recirculation Actuator
Figure 2:

HVAC Components


Object Number: 1480138  Size: LF
(1)Inside Air Temperature Sensor
(2)Blower Control Module
(3)Blower Motor
(4)HVAC Control
Figure 3:

Compressor and A/C Refrigerent Pressure Sensor


Object Number: 1469258  Size: LF
(1)A/C Compressor/Clutch
(2)A/C Refrigerant Pressure Sensor
(3)Ambient Air Temperature Sensor