GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 4WD 🢒 Body Systems 🢒 Lighting 🢒 Interior Lights Dimming Schematics
Figure 1:

I/P Dimming Supply - 1 of 2
Object Number: 2081419 Size: FS
Figure 2:

I/P Dimming Supply - 2 of 2
Object Number: 2081424 Size: FS
Figure 3:

Courtesy Lamp Supply
Object Number: 2081429 Size: FS