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)Radio/Audio System Description and Operation (IOB)Radio/Audio System Description and Operation (IOS/IOT/IOU)Radio/Audio System Description and Operation (IOR)

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-50334-20  Multi-Media Interface Tester (MIT)
• EL-50334-50  USB Cable and Adapter Kit

For equivalent regional tools, refer to Special ToolsSpecial Tools (MIT Tool Instructions)