GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Power, Outside Air Temp, and Light Sensors


Object Number: 861899  Size: FS
Master Electrical Component List
Automatic Day-Night Mirror Description and Operation
Ground and Electrochromic
LH HID, RT HID, PCM B, CRANK, HORN, SIR
Backup Lamps
LH HID, RT HID, PCM B, CRANK, HORN, SIR
OnStar - Except Y91
Passenger Presence Schematics - 1 of 2
Rear Object Sensor Control Module, RPA Display, RPA Disable Switch
Figure 2:

Ground and Electrochromic


Object Number: 861902  Size: FS
Master Electrical Component List
Automatic Day-Night Mirror Description and Operation
Power, Outside Air Temp, and Light Sensors
G200 - 3 Of 3
G200 - 3 Of 3
G200 - 1 of 3
G200 - 1 of 3