Reference Information

Schematic Reference

OnStar/Telematics Schematics 

Connector End View Reference

Component Connector End Views

Description and Operation

Radio/Audio System Description and Operation (with Color Display) , Radio/Audio System Description and Operation (with Monochrome Display) 

Electrical Information Reference

• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information