GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2008 🢒 STS 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Inside Rearview Mirror Schematics
Figure 1:

Power and Ground
Object Number: 1902443 Size: FS
Master Electrical Component List
Automatic Day-Night Mirror Description and Operation
Control Module References
Automatic Headlamp Dimming Signals
Figure 2:

Automatic Headlamp Dimming Signals
Object Number: 1902446 Size: FS
Master Electrical Component List
Automatic Day-Night Mirror Description and Operation
Control Module References
Power and Ground