Section 1580 (Cellular Communication System)
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Cellular Communication Component Views
- OnStar Keypad
- Overhead Console
- Global Positioning System Antenna Connection
- Rear Floor
- Right B Pillar
- Headliner
- Global Positioning System Antenna
- Cellular Cable to Vehicle Communication Interface Module (VCIM)
- Rear Floor and C Pillar
- Cellular Antenna
- Vehicle Communication Interface Module (VCIM), Short Wheelbase, Body Type VIN = 3
- Vehicle Communication Interface Module (VCIM), Long Wheelbase, Body Type VIN = 6
- Cellular Communication Connector End Views
- Cellular Communication Component Views
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Cellular Communication
- Diagnostic System Check - Cellular Communication
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B2455: Open In Cellular Microphone Low Reference Circuit, Or A Short To Voltage In Cellular Microphone Signal Circuit
- DTC B2470: Vehicle Communication Interface Module Does Not Detect A Cellular Signal
- DTC B2476: Keypad Signal Circuit Voltage Low
- DTC B2482: A Button Is Depressed Or Stuck For More Than 15 Seconds
- DTC B2483 or B2484: Vehicle Communication Interface Module Does Not Detect A Navigation Signal
- DTC U1500: VCIM Detects An Internal Communication Malfunction
- OnStar Symptom Diagnosis
- Symptoms - Cellular Communication
- OnStar One or More Buttons 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
- Repair Instructions
- Coaxial Cable Replacement - Cellular Telephone (Envoy, Bravada)
- Coupling Replacement - Antenna Inner
- Coupling Replacement - Antenna Outer
- Navigation Antenna Replacement
- Antenna Bracket Replacement
- 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® Reconfiguration Procedure
- OnStar® Cellular, GPS, and Diagnostic Limitations
- Operation of the Hands Free Cellular Phone
- Dialing a Phone Number Hands Free
- Operation of the OnStar® Speech Recognition Systems
- OnStar Description and Operation