Cellular System, Entertainment System, And Navigation System

• Specifications
  • Fastener Tightening Specifications
• Schematic and Routing Diagrams
  • Entertainment/Communication Schematic Icons
  • OnStar Schematics
  • Radio/Navigation System Schematics
• Component Locator
  • Entertainment/Communication Component Views
  • Entertainment/Communication Connector End Views
    • Audio Amplifier C1 (U57)
    • Audio Amplifier C1 (U66)
    • Audio Amplifier C2 (U57)
    • Audio Amplifier C2 (U66)
    • Audio Amplifier C3 (U57)
    • Audio Amplifier C3 (U66)
    • Digital Radio Receiver (U2K/U2L)
    • Noise Compensation Microphone (U57)
    • Radio C1
    • Radio C2
    • Radio C3
    • Radio C4 (Export w/U2X/U2Y)
    • Radio Antenna Module
    • Speaker - Front Center (U57)
    • Speaker - Left A Pillar Tweeter (U57)
    • Speaker - Left A Pillar Tweeter (U66)
    • Speaker - LF Door (U57)
    • Speaker - LF Door (U66)
    • Speaker - LR Door
    • Speaker - Rear Subwoofer (U57)
    • Speaker - Rear Subwoofer (U66)
    • Speaker - RF Door (U57)
    • Speaker - RF Door (U66)
    • Speaker - Right A Pillar Tweeter (U57)
    • Speaker - Right A Pillar Tweeter (U66)
    • Speaker - RR Door
    • Inside Rearview Mirror (ISRVM)
    • Vehicle Communication Interface Module (VCIM) C1
    • Vehicle Communication Interface Module (VCIM) C2
    • Vehicle Communication Interface Module (VCIM) C3
    • Auxiliary RCA Video Jacks (Export w/U2Y/U2X)
    • Radio C4 (Export w/U2Y/U2X)
    • Traffic Information Receiver (Export w/U2Y/U2X)
    • TV Antenna Module (Export w/U2Y/U2X)
• Diagnostic Information and Procedures
  • Diagnostic Code Index
  • Scan Tool Output Controls
  • Scan Tool Data List
  • Scan Tool Data Definitions
  • DTC B0001
    • Circuit Description
    • DTC Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Diagnostic Aids
    • Test Description
  • DTC B1259
    • 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 B1271
    • 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 B1422
    • Circuit Description
    • DTC Descriptor
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Conditions for Clearing the DTC
  • DTC B2455
    • 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 B2462
    • 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
    • Diagnostic Aids
    • Test Description
  • DTC B2470
    • 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 Verification
    • Component Testing
    • Repair Procedures
  • DTC B2476
    • 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 B2482
    • 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 B2483 or B2484
    • 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 Verification
    • Component Testing
    • Repair Procedures
  • DTC U1500
    • 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
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
  • DTC U2153
    • 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
  • Audio System Troubleshooting Hints
    • Tools Required
      • Notes
      • Preliminary Inspections
    • Identifying Concerns
    • Corrective Action
    • Generator Whine Concerns
  • Auxiliary RCA Video Jacks - Audio Inoperative or Degraded Quality
  • Auxiliary RCA Video Jacks - Video Inoperative or Degraded Quality
  • Digital Radio Poor or No Reception
    • Diagnostic Fault Information
    • 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 Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Component Testing
    • Repair Procedures
  • Microphone Inoperative - Caller Cannot Be Heard
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • Navigation System - Poor or Inoperative TV Reception
  • Navigation System - Voice Guidance Inoperative or Degraded Quality
  • Navigation System - Voice Recognition Inoperative
  • No (or Noisy) OnStar Audio
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • No Global Positioning System (GPS) Reception
  • Noise Compensated Volume Inoperative
    • Diagnostic Fault Information
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
        • Notes
        • Scan Tool Reference
    • Circuit/System Testing
    • Repair Procedures
  • OnStar Button LED Inoperative
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • OnStar Call Center Remote Function Requests Inoperative
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
  • OnStar One or More Buttons Inoperative
    • Diagnostic Fault Information
    • 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 Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
  • Radio Poor Reception
    • Diagnostic Fault Information
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
        • Notes
        • Scan Tool Reference
    • Circuit/System Testing
    • Repair Procedures
  • Radio Setup (With Navigation - UAV, U2X, U2Y)
    • Notes
    • Radio Setup
  • Radio Setup (Without Navigation - U2S, U2R)
    • Notes
    • Option Configuration
  • Reduced Volume - One or More Speakers
    • Diagnostic Fault Information
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
        • Notes
        • Scan Tool Reference
      • Special Tools Required
    • Circuit/System Testing
    • Repair Procedures
  • Speaker Replacement Reference
  • Speakers Inoperative - All
    • Diagnostic Fault Information
    • Reference Information
    • Circuit/System Testing
    • Repair Procedures
  • Speakers Inoperative - One or More
    • Diagnostic Fault Information
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
        • Notes
        • Scan Tool Reference
      • Special Tools Required
    • Circuit/System Testing
    • Repair Procedures
  • Unable to Contact OnStar Call Center
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Component Testing
    • Repair Procedures
  • Voice Recognition Inoperative
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
• Repair Instructions
  • 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
    • Removal Procedure
    • Installation Procedure
  • Digital Radio Receiver Replacement
    • Removal Procedure
    • Installation Procedure
  • Microphone Replacement - Radio Volume Compensator Interior
    • Removal Procedure
    • Installation Procedure
  • Amplifier Replacement
    • Removal Procedure
    • Installation Procedure
  • Mobile Telephone Digital Antenna Replacement
  • Antenna Replacement - Cellular Communications/Digital Radio
    • Removal Procedure
    • Installation Procedure
  • TV Antenna Amplifier Replacement
    • Removal Procedure
    • Installation Procedure
  • Radio Antenna Module Replacement
    • Removal Procedure
    • Installation Procedure
  • TV Antenna Module Replacement
    • Removal Procedure
    • Installation Procedure
  • Global Positioning System (GPS) Antenna Replacement
    • Removal Procedure
    • Installation Procedure
  • Navigation Antenna Replacement
    • Removal Procedure
    • Installation Procedure
  • Digital Radio Antenna Cable Replacement
    • Removal Procedure
    • Installation Procedure
  • Coaxial Cable Replacement - Global Positioning System (GPS)
    • Removal Procedure
    • Installation Procedure
  • Auxiliary Audio/Video Input Control Replacement
    • Removal Procedure
    • Installation Procedure
  • Speaker Replacement - Front Lower
    • Removal Procedure
    • Installation Procedure
  • Speaker Replacement - Front Upper
    • Removal Procedure
    • Installation Procedure
  • Speaker Replacement - Rear
    • Removal Procedure
    • Installation Procedure
  • Radio Rear Side Door Speaker Replacement
    • Removal Procedure
    • Installation Procedure
• Description and Operation
  • Navigation System Description and Operation
    • Notes
    • Navigation System Components
    • Navigation Radio
    • Global Positioning System (GPS) Antenna
    • TV and VICS Antenna
    • TV Antenna Module
    • TV Antenna Amplifier
    • Auxiliary RCA Video Jacks
    • VICS Module
    • VICS Optical Beacon Antenna
    • Browser
    • Planning a Route
    • Beam
    • Voice Recognition
  • 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
        • Notes
        • AM Reception
        • FM Reception
    • XM Reception
      • Notes
      • Viewing XM Messages
    • Diversity Antenna System
    • Audio Amplifier
    • Theft Deterrent
      • Radio
        • Notes
        • Digital Radio Receiver
    • Radio Personalization w/ Home and Away Feature
    • Configurable Radio Display Keys w/U2R or U2S
    • Radio Data System (RDS)
      • Notes
      • RDS Basic Information
        • Notes
        • Displaying Program Information
        • RDS Traffic Feature (TA) w/U2R or U2S
        • RDS Traffic Feature w/UAV, U2Y, or U2X
      • Viewing Messages w/U2R or U2S
        • Notes
        • Using Program Type Presets w/U2R or U2S
        • Using RDS Seek w/UAV, U2Y, or U2X
    • XM Satellite Radio
      • Notes
      • Digital Radio Receiver
      • Viewing Messages
      • Steering Wheel Controls
    • Configurable Steering Wheel Controls