GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 CTS 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Door Lock/Indicator Schematics
Figure 1:

Front Doors
Object Number: 2077277 Size: FS
Figure 2:

Rear Doors Without UA2
Object Number: 2077278 Size: FS
Figure 3:

Rear Doors (UA2)
Object Number: 2077279 Size: FS
Figure 4:

Ajar Switches
Object Number: 2077280 Size: FS
Figure 5:

Door Handle Switches
Object Number: 2081296 Size: FS