GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2000
🢒
GMC C Pickup - 2WD
🢒
Body and Accessories
🢒
Cellular Communication
🢒 OnStar Schematics
Figure
1:
OnStar Power and Grounds
Figure
2:
OnStar Inputs and Outputs
Figure
3:
OnStar VIU to VCU Communications