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

Sensors


Object Number: 592890  Size: FS
HVAC Components
HVAC Air Delivery/Temperature Control Circuit Description
Temperature Controls
Compressor Controls CJ2
Underhood Accessory Wiring Junction Block, Headlamp Switch, Heater A/C Control, RCDLR, Theft Deterrent Indicator Lamp, Theft Deterrent Shock Sensor and Trip Calculator
DIC/HVAC and HVAC CTRL Fuse
G200 (1 of 4)
G200 (1 of 4)
Figure 2:

Temperature Controls


Object Number: 592893  Size: FS
HVAC Components
HVAC Air Delivery/Temperature Control Circuit Description
Vacuum Electric Solenoids
Sensors
DIC/HVAC and HVAC CTRL Fuse
DIC/HVAC and HVAC CTRL Fuse
Figure 3:

Vacuum Electric Solenoids


Object Number: 592899  Size: FS
HVAC Components
HVAC Air Delivery/Temperature Control Circuit Description
Air Delivery
Temperature Controls
DIC/HVAC and HVAC CTRL Fuse
DIC/HVAC and HVAC CTRL Fuse
Figure 4:

Air Delivery


Object Number: 592906  Size: FS
HVAC Components
HVAC Air Delivery/Temperature Control Circuit Description
Vacuum Electric Solenoids
DIC/HVAC and HVAC CTRL Fuse
DIC/HVAC and HVAC CTRL Fuse