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
• Component Locator
  • Entertainment/Communication Component Views
  • Entertainment/Communication Connectors
    • Audio Amplifier C1
    • Audio Amplifier C2 (U66)
    • Audio Amplifier C2 (Y07 w/U65)
    • Audio Amplifier C2 (Y67 w/U65)
    • Cellular Microphone
    • Digital Radio Receiver (U2K)
    • Noise Compensation Microphone (U65)
    • Radio C1
    • Radio C2
    • Radio C3 (UZD/U3Z)
    • Radio C5 (Denso Radio)
    • Radio Antenna Module - Left C1
    • Radio Antenna Module - Left C2
    • Radio Antenna Module - Right
    • Speaker - Center (U65)
    • Speaker - Center (U66)
    • Speaker - LF Door (U65)
    • Speaker - LF Door Midrange (U66)
    • Speaker - LF Door Subwoofer (U66)
    • Speaker - LF Midrange (U65)
    • Speaker - LR (U65)
    • Speaker - LR Midrange (U66)
    • Speaker - RF Door (U65)
    • Speaker - RF Door Midrange (U66)
    • Speaker - RF Door Subwoofer (U66)
    • Speaker - RF Door Midrange (U65)
    • Speaker - RR (U65)
    • Speaker - RR Midrange (U66)
    • Traffic Information Receiver (UZD)
    • Vehicle Communication Interface Module (VCIM) C1
    • Vehicle Communication Interface Module (VCIM) C2
    • Vehicle Communication Interface Module (VCIM) C3
    • Vehicle Communication Interface Module (VCIM) C4
• Diagnostic Information and Procedures
  • Diagnostic Code Index
  • Diagnostic Starting Point - Cellular, Entertainment, and Navigation
  • Scan Tool Output Controls
  • Scan Tool Data List
  • Scan Tool Data Definitions
  • DTC B0001
    • 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 B125A, B125B
    • 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 Testing
    • Repair Procedures
  • DTC B1271
    • 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 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 B2462
    • Notes
    • DTC Descriptor
    • Circuit Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
    • Circuit/System Testing
    • Repair Procedures
  • DTC B2470
    • Notes
    • 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
    • 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
    • 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
  • DTC U2153
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
    • Circuit/System Testing
    • 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
    • Notes
    • Preliminary Inspections
    • Identifying Concerns
    • Corrective Action
    • Generator Whine Concerns
  • Digital Radio Poor or No Reception
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
      • Description and Operation
        • Notes
        • Special Tools Required
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Procedures
  • Digital Radio 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
  • Navigation System - Voice Recognition Inoperative
    • Diagnostic Instructions
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
    • 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
    • Diagnostic Instructions
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
    • Circuit/System Testing
    • Repair Procedures
  • Noise Compensated Volume Inoperative
    • Diagnostic Instructions
    • Reference Information
    • Circuit/System Testing
    • Repair Procedures
  • 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 (One or More Buttons Inoperative)
    • Circuit/System Testing
    • Repair Procedures
  • OnStar Reconfiguration (without TIS2web Gen 3 and prior)
  • OnStar Reconfiguration (with TIS 2 Web Gen 4 and later)
  • OnStar Symptom Diagnosis
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
  • Radio Poor Reception
    • Notes
    • Diagnostic System Check - Vehicle
    • Antenna System Test
    • Diversity Antenna System
  • Radio Setup
  • Reduced Volume - One or More Speakers
    • Diagnostic Instructions
    • Reference Information
      • Schematic Reference
      • Connector End View Reference
        • Notes
        • Scan Tool Reference
      • Special Tools Required
    • Circuit/System Testing
    • Repair Instructions
  • Speaker Replacement Reference
  • Speakers Inoperative - All
    • Diagnostic Instructions
    • Circuit Description
    • Reference Information
    • Circuit/System Testing
    • Repair Instructions
  • Speakers Inoperative - One or More
    • Notes
    • Diagnostic System Check - Vehicle
    • All Speakers on One Channel Inoperative
    • All Speakers on One Channel Inoperative Only on Digital Radio
    • One Speaker Inoperative
  • Unable to Contact OnStar Call Center
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Component Testing
    • Repair Procedures
  • Voice Recognition Inoperative
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Repair Procedures
• Repair Instructions
  • Mobile Telephone Microphone Replacement
    • Removal Procedure
  • Communication Interface Module Replacement (Z06)
  • Communication Interface Module Replacement (Except Z06)
  • 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 (Convertible)
  • Digital Radio Receiver Replacement (Coupe)
  • Microphone Replacement - Radio Volume Compensator Interior
  • Bose Module Replacement
    • Removal Procedure
    • Installation Procedure
  • Navigation Display Module Replacement
  • Antenna Assembly Replacement - Cellular and Navigation
    • Removal Procedure
    • Installation Procedure
  • Radio Antenna Module Replacement (Convertible)
  • Radio Antenna Module Replacement (Coupe)
  • Digital Radio Antenna Replacement
  • Global Positioning System (GPS) Antenna Replacement
    • Removal Procedure
    • Installation Procedure
  • Navigation Antenna Replacement
  • Digital Radio Antenna Cable Replacement (Convertible)
    • Removal Procedure
    • Installation Procedure
  • Digital Radio Antenna Cable Replacement (Coupe)
    • Removal Procedure
    • Installation Procedure
  • Speaker Grille Replacement - Front Door
  • Radio Front Speaker Replacement
  • Speaker Replacement - Front Door
  • Speaker Replacement - Rear (Convertible)
    • Removal Procedure
    • Installation Procedure
• Description and Operation
  • Navigation System Description and Operation
    • Notes
    • Navigation System Components
    • Navigation Radio
    • Global Positioning System (GPS)
    • Voice Recognition
    • VICS Module - Export
  • OnStar Description and Operation
    • Notes
    • New Features
    • 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
    • Radio Reception
      • Radio Signal
        • Notes
        • AM Reception
        • FM Reception
        • XM Satellite Radio
    • Diversity Antenna System
    • Audio Amplifier
    • Theftlock
      • Radio
        • Notes
        • Digital Radio Receiver
    • Radio Personalization w/Home and Away Feature (If Equipped)
    • Radio Data System (RDS)
      • Notes
      • RDS Basic Information
        • Notes
        • Displaying Program Information
    • Steering Wheel Controls
    • XM Satellite Radio
      • Notes
      • Digital Radio Receiver
      • Viewing Messages
      • Selecting a PTY