GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2006 🢒 STS 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 OnStar Schematics
Figure 1:

Power, Ground, VCIM, ISRVM
Object Number: 1619401 Size: FS
Master Electrical Component List
OnStar Description and Operation
Control Module References
DLC
Cellular Communication Schematic Icons
Cellular Communication Schematic Icons
Cellular Communication Schematic Icons
Fuse Block Right Rear Bussing
Fuse Block Right Rear: Radio/OnStar, RT Turn Signal, Canister Vent and RF Heated/Vented Seat Fuses; Window Motors Circuit Breaker
G401 (1 of 2)
G402 (2 of 2)
G402 (1 of 2)
Figure 2:

VCIM, DLC
Object Number: 1619402 Size: FS
Master Electrical Component List
OnStar Description and Operation
Control Module References
Power, Ground, VCIM, ISRVM
GMLAN Low Speed (2 of 2)
GMLAN High Speed - Domestic w/ UE1, K59, F55
GMLAN High Speed - Domestic w/ UE1 and F55
GMLAN High Speed - Domestic w/ UE1