Cellular System, Entertainment System, And Navigation System

• Specifications
  • Fastener Specifications
• Schematic Wiring Diagrams
  • Radio/Navigation System Wiring Schematics
    • Radio Power, Ground and Serial Data
    • Audio Amplifier Power, Ground and Serial Data
    • Human Machine Interface Control and Info Display Modules Power, Ground and Serial Data
    • Antennas
    • Speakers (UQF-NKC)
    • Radio Speaker Outputs (UQF+NKC)
    • Speakers (UQF+NKC)
    • Speakers (UQS)
    • Rear Speakers (UQS)
    • Auxiliary Inputs
  • OnStar/Telematics Wiring Schematics
    • Power, Ground, Serial Data and Antennas
    • Controls and Audio Signals
• Diagnostic Information and Procedures
  • DTC B0997
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Conditions for Running DTC
    • Conditions for Setting the DTC
    • Action Taken When DTC Sets
    • Conditions for Clearing the DTC
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • DTC B1024 (Audio Amplifier)
    • 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 Instructions
  • DTC B1024 (Human Machine Interface Control Module)
    • 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 Instructions
  • DTC B1025, B1035, B1045, or B1055 (UQF without NKC)
    • Diagnostic Instructions
    • DTC Descriptors
    • 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
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1025, B1035, B1045, B1055, B1065, B1075, B1085, or B1095 (UQS)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • 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
    • Circuit/System Testing
    • Repair Instructions
  • DTC B1025, B1035, B1045, or B1055 (UQF with NKC)
    • Diagnostic Instructions
    • DTC Descriptors
    • 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
    • Circuit/System Testing
    • Repair Instructions
  • DTC B124B
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • 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
    • Circuit/System Testing
    • Repair Instructions
  • DTC B124F
    • 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
    • Circuit/System Verification
    • Repair Instructions
  • DTC B125A
    • Diagnostic Instructions
    • DTC Descriptors
    • 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
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • DTC B125C
    • 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
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • DTC B1265
    • 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
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Testing
    • Repair Instructions
  • DTC B126A
    • 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 Instructions
  • 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
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • DTC B127E (Z49)
    • 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 Instructions
  • DTC B127E (EF7)
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Diagnostic Aids
    • 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 Instructions
  • DTC B1446 or B1447
    • Diagnostic Instructions
    • DTC Descriptors
    • 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 Testing
    • Repair Instructions
  • DTC B2455
    • Diagnostic Instructions
    • DTC Descriptors
    • 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 Instructions
  • DTC B2462
    • 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
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • DTC B2470
    • 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
    • Component Testing
    • Repair Instructions
  • DTC B2476 or B2482
    • Diagnostic Instructions
    • DTC Descriptors
    • 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 Testing
    • Repair Instructions
  • Symptoms - Cellular Communication
    • Notes
    • Visual/Physical Inspection
    • Intermittent
    • Symptom List
  • Symptoms - Entertainment
    • Notes
    • Visual/Physical Inspection
    • Intermittent
    • Symptom List
  • Application Malfunction
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • Auxiliary Audio Input Malfunction
    • Diagnostic Instructions
    • DTC Descriptor
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • 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
    • Circuit/System Testing
    • Repair Instructions
  • Bluetooth Malfunction
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • Digital Radio Poor or No Reception
    • 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
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • Phone Projection Malfunction (Apple CarPlay)
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • Phone Projection Malfunction (Android Auto)
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • OnStar Microphone Malfunction
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • OnStar Audio Malfunction
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • No Global Positioning System (GPS) Reception
    • 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
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • OnStar Button LED Malfunction
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • OnStar Call Center Remote Function Requests Malfunction
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • OnStar Button Malfunction
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • OnStar Steering Wheel Control Functions Malfunction
  • Radio Information Display Malfunction (Z49)
    • Diagnostic Instructions
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • Radio Information Display Malfunction (EF7)
    • Diagnostic Instructions
    • DTC Descriptor
    • Circuit/System Description
    • Diagnostic Aids
    • 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 Instructions
  • Radio Poor Reception
    • Diagnostic Instructions
    • DTC Descriptors
    • 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
    • Circuit/System Testing
    • Component Testing
    • Repair Instructions
  • Speaker Replacement Reference
  • Speaker Malfunction (UQF without NKC)
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
  • Speaker Malfunction (UQS)
    • Diagnostic Instructions
    • DTC Descriptors
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • 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
    • Circuit/System Testing
    • Repair Instructions
  • Speaker Malfunction (UQF with NKC)
    • Diagnostic Instructions
    • DTC Descriptors
    • 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
    • Circuit/System Testing
    • Repair Instructions
  • Unable to Contact OnStar Call Center
    • 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
    • Component Testing
    • Repair Instructions
  • OnStar Voice Recognition Malfunction
    • Diagnostic Instructions
    • Circuit/System Description
    • Reference Information
    • Circuit/System Verification
    • Repair Instructions
  • Voice Recognition Malfunction
    • Diagnostic Instructions
    • Diagnostic Fault Information
    • Circuit/System Description
    • Diagnostic Aids
    • Reference Information
    • Circuit/System Verification
    • Circuit/System Testing
    • Repair Instructions
• Repair Instructions
  • Mobile Telephone Microphone Replacement
  • Human Machine Interface Control Module Replacement
  • Communication Interface Module Replacement
  • Communication Interface Module Battery Replacement
  • Communication Interface Module Bracket Replacement
  • Radio Bracket Replacement
  • Radio Replacement
  • Radio Control Assembly Replacement
  • Active Noise Cancellation Microphone Replacement
    • Removal Procedure
    • Installation Procedure
  • Audio Disc Player, USB, Auxiliary In, and Memory Card Receptacle Replacement
  • Radio Speaker Amplifier Replacement
  • Navigation Signal Splitter Replacement
  • Radio Antenna Coil Replacement
  • Radio Antenna Ground Coil Replacement
  • Radio Antenna Amplifier Replacement
  • Radio Front Center Speaker Replacement
  • Radio Front Center Speaker Grille Replacement
  • Radio Windshield Side Garnish Molding Speaker Replacement
  • High Frequency Antenna Replacement
  • Radio Quarter Speaker Replacement
  • Radio Front Side Door Speaker Replacement
  • Radio Rear Speaker Replacement
  • Radio Control Switch Replacement - Steering Wheel
    • Removal Procedure
    • Installation Procedure
  • Radio Rear Side Door Speaker Replacement
• Description and Operation
  • OnStar Description and Operation
    • Notes
    • Telematics Communication Interface Control Module
    • OnStar® Three Button Assembly
    • Secondary OnStar® Controls
    • OnStar® Microphone
    • Cellular and GPS Antennas
    • OnStar® RemoteLink
    • Compass Heading
    • Bluetooth® (If Equipped)
    • Bluetooth® Features Supported
    • Pairing a Bluetooth® Cellular Phone to the Vehicle
    • Back-up Battery (If Equipped)
    • WiFi Hotspot
    • Audio System Interface
    • OnStar® Sleep Cycle
    • Features
    • Teletypewriter (TTY) Users
    • Deactivated OnStar® Accounts
    • OnStar® Cellular, GPS, and Diagnostic Limitations
    • Mobile Identification Number and Mobile Directory Number
    • Operation of the OnStar® Speech Recognition Systems
  • Radio/Audio System Description and Operation
    • Notes
    • Data Communications
    • Remote Radio Receiver
    • Human Machine Interface Control Module
    • Media Disc Player
    • Audio Amplifier (If equipped)
    • Speaker Operation
    • Infotainment Controls and Display
    • Antenna System
    • Radio Reception
    • Theft Deterrent
    • Bluetooth ® (If equipped)
    • Applications (If equipped)
    • Auxiliary Audio Input Jack (If equipped)
    • USB Port and SD Card Reader
    • Navigation System Components and Features (if equipped)
    • Valet Mode
    • OnStar ® (If equipped)
    • Steering Wheel Controls (If equipped)
    • Auto Volume Control
• Special Tools and Equipment
  • Special Tools
  • Special Tools (MIT Tool Instructions)
    • Bluetooth Pairing for Vehicles with Radio RPO: UF7
    • Holden Radio Bluetooth Pairing Instructions
    • For all other Radios
    • Troubleshooting Guide