GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2004
🢒
GMC C Sierra - 2WD
🢒
Accessories
🢒
Cellular Communication
🢒 OnStar Schematics
Figure
1:
Except Y91
Master Electrical Component List
OnStar Description and Operation
Y91
B+ Bus Bar - 1 of 2
INFO and CIG LTR Fuses
SP207
G203 - 1 of 3
G203 - 1 of 3
G203 - 1 of 3
G200 - 3 of 3
G200 - 3 of 3
G200 - 1 of 3
G200 - 1 of 3
Figure
2:
Y91
Master Electrical Component List
OnStar Description and Operation
Except Y91
B+ Bus Bar - 1 of 2
B+ Bus Bar - 1 of 2
SP207
G203 - 1 of 3
G203 - 1 of 3
G200 - 3 of 3
G200 - 3 of 3
G200 - 1 of 3
G200 - 1 of 3
