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

Power, Outside Air Temp, and Light Sensors


Object Number: 882468  Size: FS
Master Electrical Component List
Automatic Day-Night Mirror Description and Operation
Ground and Electrochromic
LH HID, RH HID, PCM B, CRANK, HORN, SIR
Backup Lamps - GMC
LH HID, RH HID, PCM B, CRANK, HORN, SIR
Passenger Presence Schematics - 2 of 3
OnStar-Except Y91
Figure 2:

Ground and Electrochromic


Object Number: 882470  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