GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2006 🢒 STS 🢒 Body 🢒 Lighting Systems 🢒 Inside Rearview Mirror Schematics
Figure 1:

Inside Rearview Mirror (ISRVM), Power and Ground
Object Number: 1618951 Size: FS
Master Electrical Component List
Automatic Day-Night Mirror Description and Operation
Control Module References
Automatic Headlamp Dimming Signals, VSS (TT6)
Fuse Block Left Rear Bussing
Fuse Block Right Rear Bussing
Ignition Mode Switch
Power, Ground, VCIM, ISRVM
Fuse Block Right Rear Bussing
Backup Lamps, CHMSL - Domestic and Export
G401 (1 of 2)
G401 (2 of 2)
G402 (1 of 2)
G402 (2 of 2)
Figure 2:

Inside Rearview Mirror (ISRVM): Automatic Headlamp Dimming Signals
Object Number: 1618950 Size: FS
Master Electrical Component List
Automatic Day-Night Mirror Description and Operation
Control Module References
Power and Ground
Headlamps w/ TT6, Automatic Headlamp Dimming Relay
Object Detection
Microphone, VSS and GPS Antenna