Cellular System, Entertainment System, And Navigation System

• Specifications
  • Fastener Tightening Specifications
• Schematic and Routing Diagrams
  • Entertainment/Communication Schematic Icons
  • Radio/Navigation System Schematics
  • OnStar Schematics
  • Video System Schematics (w/o UMS)
  • Video System Schematics (UMS)
• Component Locator
  • Entertainment/Communication Component Views
  • Entertainment/Communication Connectors
    • Audio Coupling Transformer C1 (UMS)
    • Audio Coupling Transformer C2 (UMS)
    • Cellular Microphone (UE1)
    • Digital Radio Receiver (U2K)
    • Digital Video Disc (DVD) Player (U42)
    • Digital Video Disc (DVD) Player C1 (UMS)
    • Digital Video Disc (DVD) Player C2 (UMS)
    • Mobile Entertainment Player Module (UMS)
    • OnStar Button Assembly (UE1)
    • Radio C1
    • Radio C2
    • Speaker - LF
    • Speaker - LR
    • Speaker - Rear Tweeter - Left
    • Speaker - Rear Tweeter - Right
    • Speaker - RF
    • Speaker - RR
    • Steering Wheel Control Switch Assembly - Left (UK3)
    • Steering Wheel Control Switch Assembly - Right (UK3)
    • Vehicle Communication Unit (VCU) C1 (UE1)
    • Vehicle Communication Unit (VCU) C2 (UE1)
• Diagnostic Information and Procedures
  • Diagnostic Code Index
  • Diagnostic Starting Point - Entertainment
  • Diagnostic Starting Point - Navigation System
  • Scan Tool Data List
  • Scan Tool Data Definitions
  • DTC B1259
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Procedures
  • DTC B1271
    • Circuit Description
    • DTC Descriptor
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Test Description
  • DTC B1290
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Diagnostic Aids
    • Circuit/System Verification
    • Repair Procedures
  • DTC B2455
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Procedures
  • DTC B2470
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Component Testing
    • Repair Procedures
  • DTC B2476
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Procedures
  • DTC B2482
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Testing
    • Repair Procedures
  • DTC B2483 or B2484
    • Diagnostic Instructions
    • DTC Descriptors
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Component Testing
    • Repair Procedures
  • DTC U1500
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
  • Symptoms - Cellular Communication
    • Notes
    • Visual/Physical Inspection
    • Intermittent
    • Symptom List
  • Symptoms - Entertainment
    • Notes
    • Visual/Physical Inspection
    • Intermittent
    • Symptom List
  • Symptoms - Navigation Systems
    • Notes
    • Visual/Physical Inspection
    • Intermittent
    • Symptom List
  • Audio System Troubleshooting Hints
    • Tools Required
    • Preliminary Inspections
    • Identifying Concerns
    • Corrective Action
    • Generator Whine Concerns
  • Mobile Entertainment System Troubleshooting Hints
  • Video Entertainment System Troubleshooting Hints
    • Notes
    • Video or Audio Distortion
    • Video Entertainment System Wireless Headphone Inoperative
    • Video Entertainment System Remote Control Inoperative
  • Audio Distortion - One or More Speakers
    • Notes
    • Diagnostic System Check - Vehicle
    • Speakers - Distortion
      • Notes
      • With RPO U56 or U42
      • With Radio or CD/MP3 Player
      • With RPO U2K
  • Digital Radio Poor or No Reception
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • Digital Radio Receiver Setup
    • Receiver Setup
    • XM Activation
  • Global Positioning System (GPS) Data Not Current or Inaccurate
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Component Testing
    • Repair Procedures
  • Microphone Inoperative - Caller Cannot Be Heard
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • Mobile Entertainment System Video Degraded or Inoperative
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • Mobile Entertainment System Audio Degraded or Inoperative
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • Mobile Entertainment System Auxiliary Video Degraded or Inoperative
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • Mobile Entertainment System Auxiliary Audio Degraded or Inoperative
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • No (or Noisy) OnStar Audio
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • No Global Positioning System (GPS) Reception
  • OnStar Button LED Inoperative
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • OnStar Call Center Remote Function Requests Inoperative
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
  • OnStar One or More Buttons Inoperative
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • OnStar Reconfiguration
  • OnStar Steering Wheel Control Functions Inoperative
  • OnStar Symptom Diagnosis
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
  • Radio Poor Reception
    • Diagnostic System Check - Vehicle
    • Using a Test Antenna
    • Antenna Ground Test
    • Antenna Coaxial Cable Testing
    • Power Type Antennas
    • Windshield Type Antennas
    • Rear Defogger Antenna System
    • Diversity Antenna System
  • Radio Setup
    • Notes
    • Radio Theft Procedure
    • Option Configuration
  • Reduced Volume - One or More Speakers
    • Notes
    • Diagnostic System Check - Vehicle
  • Speaker Replacement Reference
  • Speakers Inoperative - All
    • Notes
    • Diagnostic System Check - Vehicle
      • Notes
      • Without RPO U2K or U42/U56
      • With RPO U2K or U42/U56
  • Speakers Inoperative - One or More
    • Notes
    • Diagnostic System Check - Vehicle
  • Unable to Contact OnStar Call Center
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Component Testing
    • Repair Procedures
  • Video Entertainment System Remote Control Inoperative
    • Diagnostic System Check - Vehicle
    • Video Entertainment System Remote Control Inoperative
  • Video Entertainment System Wireless Headphone Inoperative
    • Diagnostic System Check - Entertainment System
  • Voice Recognition Inoperative
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
• Repair Instructions
  • OnStar Button Assembly Replacement
    • Removal Procedure
    • Installation Procedure
  • Mobile Telephone Microphone Replacement
    • Removal Procedure
    • Installation Procedure
  • Communication Interface Module Replacement
    • Removal Procedure
    • Installation Procedure
  • Compact Disc Care and Cleaning
    • Care of CDs
    • Care of the CD Player
    • Stuck CDs
    • Labeling CDs
  • Radio Replacement
  • Digital Radio Receiver Replacement
    • Removal Procedure
    • Installation Procedure
  • Mobile Entertainment Data Cartridge Access Lower Door Replacement
    • Removal Procedure
    • Installation Procedure
  • Mobile Telephone Digital Antenna Replacement
  • Cellular Communications/Digital Radio Antenna Replacement
    • Removal Procedure
    • Installation Procedure
  • Cellular and Navigation Antenna Assembly Replacement
    • Removal Procedure
    • Installation Procedure
  • Fixed Antenna Replacement
    • Removal Procedure
    • Installation Procedure
  • Digital Radio Antenna Replacement
    • Removal Procedure
    • Installation Procedure
  • Global Positioning System (GPS) Antenna Replacement
  • Digital Radio Antenna Cable Replacement
    • Removal Procedure
    • Installation Procedure
  • Mobile Telephone Antenna Coaxial Cable Replacement
    • Removal Procedure
    • Installation Procedure
  • Radio Antenna Cable Extension Cable Replacement
    • Removal Procedure
    • Installation Procedure
  • Video Disc Player Replacement
    • Removal Procedure
    • Installation Procedure
  • Mobile Entertainment Data Cartridge Player Lower Housing Replacement
    • Removal Procedure
    • Installation Procedure
  • Radio Front Speaker Replacement
    • Removal Procedure
    • Installation Procedure
  • Radio Rear Speaker Replacement
    • Removal Procedure
    • Installation Procedure
  • Rear Pillar Speaker Replacement
• Description and Operation
  • Mobile Entertainment System Description and Operation
    • Notes
    • Playback File Types
    • File Errors
    • Removable Cartridge
    • In-Home Cradle and USB data cable
    • In-Home Power Supply
    • In-Home Software
    • In-Vehicle Software
  • Navigation System Description and Operation
    • Notes
    • Navigation System Components
    • Navigation Radio
    • Global Positioning System (GPS) Antenna
    • GPS Reception
    • Route Guidance
    • Points of Interest (POI)
    • Map DVD
  • 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
  • Radio/Audio System Description and Operation
    • Notes
    • AM/FM Reception
      • Radio Signal
      • AM Reception
      • FM Reception
    • XM Reception
    • Theft Deterrent
    • Steering Wheel Controls
    • XM Satellite Radio
      • Notes
      • Digital Radio Receiver
      • Viewing Messages
      • Technical Information for MP3 Player (US8)
  • Video Entertainment System Description and Operation
    • Overhead Console
    • DVD Player
    • Display Screen
    • AUX Inputs
    • Parental Control
    • Rear Seat Audio (RSA)
    • Wireless Headphones
    • Wired Headphone Jacks