GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 CTS 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 HVAC Schematics
Figure 1:

Blower Controls
Object Number: 638465 Size: FS
Figure 2:

Compressor Controls
Object Number: 638472 Size: FS
Figure 3:

HVAC Air delivery/Temperature Control schematics ( Actuators ) ( LH Drive )
Object Number: 826487 Size: FS
Figure 4:

Air Delivery/Temperature Controls
Object Number: 638473 Size: FS
Figure 5:

Ambient Air and Sun Load Sensors
Object Number: 638477 Size: FS