Reference Information

Schematic Reference

Radio/Navigation System Wiring Schematics (Chevrolet)Radio/Navigation System Wiring Schematics (Buick)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX (Encore)COMPONENT CONNECTOR END VIEWS - INDEX (Trax)

Description and Operation

Radio/Audio System Description and Operation (IO5/IO6)

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

Special Tools

EL-49903  OnStar Antenna Diagnostic Tool Kit