Reference Information
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Schematic Reference
Connector End View Reference
COMPONENT CONNECTOR END VIEWS -- INDEX
Description and Operation
OnStar Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
- OnStar Description and Operation
Scan Tool Reference
Control Module References for scan tool information
Special Tools
EL-49903 OnStar Antenna Diagnostic Tool Kit
For equivalent regional tools, refer to Special Tools .