Section 106 (Cellular Communication System)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Cellular Communication
- Diagnostic System Check - Cellular Communication
- Scan Tool Data List (Gen 5)
- Scan Tool Data List (Gen 6)
- Scan Tool Data Definitions (Gen 5)
- Scan Tool Data Definitions (Gen 6)
- Diagnostic Trouble Code (DTC) List
- DTC B2455: Cellular Phone Microphone Circuit
- DTC B2470: Cellular Phone Antenna Circuit
- DTC B2476: Cellular Phone Select Service Switch Malfunction
- DTC B2482: Cellular Phone Select Service Switch Range/Performance
- DTC B2483 or B2484: Global Positioning System (GPS) Sensor Circuit
- DTC U1500: Inter-device Dedicated Bus 1
- OnStar Symptom Diagnosis
- Symptoms - Cellular Communication
- OnStar One or More Buttons Inoperative
- OnStar Call Center Remote Function Requests Inoperative
- Unable to Contact OnStar Call Center
- Microphone Inoperative - Caller Cannot Be Heard
- Voice Recognition Inoperative
- OnStar Steering Wheel Control Functions Inoperative
- OnStar Button LED Inoperative
- No (or Noisy) OnStar Audio
- Global Positioning System (GPS) Data Not Current or Inaccurate
- OnStar Reconfiguration
- Repair Instructions
- Antenna Assembly Replacement - Cellular and Navigation
- OnStar Button Assembly Replacement
- Communication Interface Module Replacement (TrailBlazer, Envoy, Bravada)
- Communication Interface Module Replacement (TrailBlazer EXT, Envoy XL)
- Navigation Control Processor Bracket Replacement (TrailBlazer, Envoy, Bravada)
- Navigation Control Processor Bracket Replacement (TrailBlazer EXT, Envoy XL)
- OnStar Microphone Replacement
- Description and Operation
- OnStar Description and Operation
- Notes
- Vehicle Communication Interface Module (VCIM)
- OnStar® Button Assembly
- OnStar® Microphone
- Cellular and Navigation Antennas
- OnStar Sleep Cycle (Generation 5)
- OnStar Sleep Cycle (Generation 6)
- Deactivated OnStar® Accounts
- OnStar® Reconfiguration Procedure
- OnStar® Cellular, GPS, and Diagnostic Limitations
- OnStar® Personal Calling
- Operation of the Hands Free Cellular Phone
- OnStar® Steering Wheel Controls
- OPC Features
- Voice Feedback
- OPC Security/System Lock
- Nametags
- Mobile Identification Number and Mobile Directory Number
- Operation of the OnStar® Speech Recognition Systems
- OnStar Description and Operation