Cellular Communication System
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Cellular Communication
- Diagnostic System Check - Cellular Communication
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B2455: Cellular Microphone
- DTC B2470: VCIM Does Not Detect A Cellular Signal
- DTC B2476: Keypad Signal Circuit Voltage
- DTC B2482: Button Depressed Or Stuck For More Than 15 Seconds
- DTC B2483 or B2484: VCIM Does Not Detect A Navigation Signal
- Symptoms - Cellular Communication
- Cellular Telephone Inoperative
- Cellular Telephone - Hands Free Operation Inoperative
- Cellular Telephone - Voice Inoperative During Hands-Free (w/o U45)
- Cellular Telephone - Voice Inoperative During Hands-Free (w/U45)
- Cellular Telephone - Audio Inoperative During Hands-Free
- Cellular Telephone - Noisy Audio During Hands-Free
- Radio Does Not Connect to Internet Service Provider (U45)
- OnStar One or More Buttons Inoperative
- Unable to Contact OnStar Call Center
- Microphone Inoperative - Caller Cannot Be Heard
- Voice Recognition Inoperative
- OnStar Button LED Inoperative
- No (or Noisy) OnStar Audio
- Cellular Telephone Setup (w/o U45)
- Cellular Telephone Setup (w/U45)
- Repair Instructions
- Cellular Telephone Docking Station Replacement (DTS)
- Cellular Telephone Docking Station Replacement (DeVille and DHS)
- Cellular Telephone Module Replacement
- Coaxial Cable Replacement - Cellular Telephone (UE1)
- Antenna Assembly Replacement (UV8)
- Coupling Replacement - Antenna Inner
- Coupling Replacement - Antenna Outer
- Navigation Antenna Replacement
- Communication Interface Module Replacement
- Description and Operation
- Cellular Telephone Description and Operation
- Notes
- Cellular Telephone Handset
- Hands Free Operation
- Cellular Microphone
- Cellular Telephone Module
- Cellular Telephone Antenna
- Cellular Telephone Circuit Description
- Basic Phone Operations
- Message Display
- Keypad Buttons
- Steering Wheel Controls
- Feature Descriptions
- Placing a Call Through the Handset Keypad
- Placing Calls Using the Steering Wheel Controls (SWC)
- Placing Calls Using Voice Recognition
- Cellular Telephone - Driver Information Center Messages
- OnStar Description and Operation
- Cellular Telephone Description and Operation