GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Yukon XL - 4WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Fog Lights Schematics
Figure 1:

Front
Object Number: 849252 Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Rear - Export only
B+ Bus Bar - 2 of 2
LED Dimming Supply Voltage - 2 of 2
I/P Dimming Supply Voltage - 3 of 7
G203 - 1 Of 2
G100, G101, G105, G106
G100, G101, G105, G106
Figure 2:

Rear - Export Only
Object Number: 849497 Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Front
B+ Bus Bar - 1 of 2
IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP
IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP
LED Dimming Supply Voltage - 1 of 2
I/P Dimming Supply Voltage - 2 of 7
G203 - 2 Of 2
G203 - 2 Of 2
G203 - 1 Of 2