Section 1733 (Cellular Communication System)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 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
- Notes
- Diagnostic Starting Point - Cellular Communication
- Scan Tool Data List
- Scan Tool Data Definitions
- DTC B1001: Option Configuration Error
- DTC B2455: Cellular Phone Microphone Circuit
- DTC B2470: Cellular Phone Antenna Circuit Malfunction
- DTC B2476: Cellular Phone Select Service Switch Malfunction (3 Button Assembly)
- DTC B2482: Cellular Phone Select Switch Range/Performance
- DTC B2483, B2484: GPS Sensor Circuit Low, GPS Sensor Circuit Open
- DTC U1500: Inter-Device Dedicated Bus Malfunction
- 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 (Gen 6)
- OnStar® Reconfiguration (Gen 6.1)
- Repair Instructions
- Antenna Assembly Replacement - Cellular and Navigation
- OnStar® Button Assembly Replacement
- Communication Interface Module Replacement (TrailBlazer EXT, Envoy XL)
- Communication Interface Module Replacement (Trailblazer, Envoy, Rainier)
- Navigation Control Processor Bracket Replacement (TrailBlazer EXT, Envoy XL)
- Navigation Control Processor Bracket Replacement (Trailblazer, Envoy, Rainier)
- 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
- 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
- Placing a Call
- Operation of the OnStar® Speech Recognition Systems
- OnStar® Description and Operation