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

All Except Escalade


Object Number: 744983  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Escalade Only
TBC, FOG LP, LT HDLP, and RT HDLP Fuses
G104
TBC, FOG LP, LT HDLP, and RT HDLP Fuses
G203 - 1 of 4
G103, G105, and G106
G203 - 1 of 4
Figure 2:

Escalade Only


Object Number: 784745  Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
All Except Escalade
TBC, FOG LP, LT HDLP, and RT HDLP Fuses
G104
TBC, FOG LP, LT HDLP, and RT HDLP Fuses
G203 - 1 of 4
G104
G203 - 1 of 4