Audio Visual Systems - Testing And Troubleshooting

• Symptom Troubleshooting Index
  • AcuraLink™ Symptom Troubleshooting Index
  • Audio and Visual System Symptom Troubleshooting Index
• Circuit Diagram
  • Audio and Visual System Circuit Diagram (With 12 Speakers/With 9 Speakers)
  • Audio and Visual System Circuit Diagram (With 16 Speakers)
• How to Information
  • How to Troubleshoot the AcuraLink™
    • Before Troubleshooting
    • How to Read DTCs with the HDS
    • General Information
    • How to Check for DTCs without the HDS
      • Using Voice Prompt
      • Using System Diagnostic Mode
    • How to Check for AcuraLink™ Subscription Status
    • AcuraLink™ System Status Indicator
    • Lighting Pattern for AcuraLink™ System Status Indicator
  • How to Troubleshoot the Audio and Visual System
    • Before Troubleshooting
    • General Operation
    • Anti-Theft Feature
    • Symptom Duplication
    • LCD Unit/Touchpad Unit Limitations
    • Global Positioning System (GPS) Limitations
    • Navigation Symptom Diagnosis (With Navigation)
      • Notes
      • Self-Inertial Navigation Limitations
      • System Initialization
      • GPS Initialization
      • Map Matching
    • HandsFreeLink Symptom Diagnosis
      • Notes
      • HandsFreeLink General Operation
      • Checking Cell Phone Compatibility
      • Dropped Calls
    • How to Check Error History (Audio and Visual System Hard Error Codes)
      • Notes
      • Displaying Dealer Diagnostics Menu Screen
      • How to Clear Error History
    • Error Code List
• Repair Procedures, Tests
  • Audio and Visual System Diagnostic Mode
    • Notes
    • Start-Up Procedure and Diagnostic Menu
    • Self-Diagnosis Mode (System Links)
    • Factory Diagnostic Screen In Line Diag and Linking
    • Forced Completing of In Line Diag and Linking
    • Detail Information and Setting
    • Monitor Check
      • Notes
      • RGB Color
      • Gray Tone
      • White Raster
      • Black Raster
      • Color Pattern
      • Touch Inputs
    • Unit Check (Quick Check)
      • Notes
      • ICU
      • Display
      • INIC
      • Most Nodes
      • Meter (HUD)
      • CAN Gateways
      • USB
      • TCU (With AcuraLink™
      • TCU Diag (With AcuraLink™)
      • Hard Key
      • Error History
      • AM/FM/HD Radio
      • XM (With XM)
      • Rear Camera (Without Multi View Camera System)
      • MVC (Multi View Camera) (With Multi View Camera System)
      • GPS Antenna
      • Gyroscope
      • Bluetooth®
      • Wi-Fi
      • HFT-Mic
      • EMMC
      • Apple IC
      • PMIC ('19-21)
      • Sub-Micro ('22-23)
      • Touchpad
    • Audio Check
      • Notes
      • ANC Diagnostics Function
      • Speaker Check
    • Functional Setup
      • Notes
      • Anti-Theft Skip
      • Driver Distraction
      • Apple CarPlay
      • Android Auto
      • Artwork Display for HD Radio
      • Total Operation Time
      • OTA
    • CB SW/HW Traceability
    • Bootloader Info
    • Car Status
    • Hardware Auto-Detect
    • Temperature
    • OTA DTC
    • Touchpad Diagnostics
      • Notes
      • Touchpad DTC
      • Error Code List
    • HD Traffic Radio
    • Shutdown Reason
• Connector View
  • ANC/Active Sound Control Microphone Connector for Inputs and Outputs
  • ANC/Active Sound Control Unit Connector for Inputs and Outputs
  • Audio Remote-HFL Switch Connector for Inputs and Outputs
  • Auxiliary Jack Assembly Connector for Inputs and Outputs
  • Center Display Unit Connector for Inputs and Outputs
  • Infotainment Control Unit Connector for Inputs and Outputs (2019 2020 2021)
  • Infotainment Control Unit Connector for Inputs and Outputs (2022 2023)
  • Rearview Camera Connector for Inputs and Outputs
  • Stereo Amplifier Connector for Inputs and Outputs (With 12 Speakers/With 9 Speakers)
  • Stereo Amplifier Connector for Inputs and Outputs (With 16 Speakers)
  • Telematics Control Unit Connector for Inputs and Outputs
  • Touchpad Unit Connector for Inputs and Outputs
  • Tuner Unit Connector for Inputs and Outputs
  • USB Charger Unit Connector for Inputs and Outputs (2019 2020 2021)
  • USB Charger Unit Connector for Inputs and Outputs (2022 2023)
• General Information
  • AcuraLink™ Self-Diagnostic Function
    • SMS Function Check
  • Audio and Visual System Error Codes
  • Audio and Visual System Most Bus Diagnostics Mode (2019 2020 2021)
    • MOST Bus Diagnosis
    • MOST Connector Handling
    • How to Check MOST Bus Condition
  • Audio and Visual System Most Bus Diagnostics Mode (2022 2023)
    • MOST Bus Diagnosis
    • MOST Connector Handling
    • How to Check MOST Bus Condition
  • Audio and Visual System OTA Error Codes
• Symptom Troubleshooting Index for Viewer
  • AM Radio Reception Changes At Night
  • AM/FM Radio Display Is Blank Or No Station Information Is Displayed
  • AcuraLink™ Prompts Or Operator Voice Is Weak Or Cannot Be Heard
  • AcuraLink™ Services Do Not Work
  • AcuraLink™ System Status Indicator Indicates Solid Red
  • Audio Remote-HFL Switch Does Not Work Properly (Touchpad Unit Buttons Work)
  • Audio System Sound Is Weak Or Distorted (Display Is Normal)
  • Auxiliary Input Sound Is Low Or Cannot Be Heard
  • Bluetooth® Audio Does Not Work
  • Booming Sound While Driving With Audio Unit ON or OFF
  • Center Display Unit Will Not Turn OFF
  • Center Display Unit Will Not Turn "ON" Or Has Turned "OFF" During Use (Blank Screen)
  • Charge-Only USB Port Does Not Work
  • Climate Control Panel (Audio Buttons) Does Not Work Properly (Touchpad Unit Buttons Work)
  • Error Code: Check Antenna Is Displayed
  • Excessive Transition Between Analog Broadcast And Digital HD RADIO™ Broadcast
  • HD RADIO™ Changes HD Channel On Its Own
  • HDS Does Not Communicate With The Vehicle And The Telematics Control Unit
  • HFL Does Not Work Properly
  • Infotainment Control Unit Does Not Exit Anti-Theft Mode
  • Microphone Does Not Recognize Driver's Or Front Passenger's Voice
  • No GPS Reception Or Interference
  • No Sound Is Heard From All The Speakers (Display Is Normal)
  • OTA Update Failure
  • Poor Or No Sound With AM/FM Radio
  • Rearview Camera Image Does Not Change When Selecting Different Views (Without Multi View Camera System)
  • Rearview Camera Image Does Not Come On (Without Multi View Camera System)
  • System Always Comes Up In-Line Diagnostic Mode
  • The MID Does Not Display The Audio System Information (Without Head Up Display)
  • The Head Up Display Does Not Display The Audio System Information
  • Touchpad Unit Does Not Work Properly
  • USB Data Communication Port Does Not Work
  • XM Radio Display Is Blank And No Station Information Is Displayed
• Troubleshooting
  • AcuraLink™ Symptom Troubleshooting - AcuraLink™ Prompts Or Operator Voice Is Weak Or Cannot Be Heard
    • Notes
    • Inspection Area
    • Inspection Outline
    • Related Information
    • Inspection
      • GND (SH_TELEM_SIG), Signal (TEL_MUTE), Signal (TELEM_SIG+), Signal (TELEM_SIG-) Circuit Inspection
      • Stereo Amplifier Inspection
      • Telematics Control Unit Inspection
  • AcuraLink™ Symptom Troubleshooting - AcuraLink™ Services Do Not Work (2019 2020 2021)
    • Notes
    • Inspection Area
    • Inspection Outline
    • Related Information
    • HDS Function
    • Inspection
      • Power Supply (+B_BACKUP (VST)), GND (GND) Circuit Inspection
      • Power Supply (USB VBUS), GND (USB GND), Signal (USB DATA+), Signal (USB DATA-) Open Wire Inspection
      • Infotainment Control Unit Inspection
      • Telematics Control Unit Inspection
  • AcuraLink™ Symptom Troubleshooting - AcuraLink™ Services Do Not Work (2022 2023)
    • Notes
    • Inspection Outline
    • Related Information
    • HDS Function
    • Inspection
      • +B_BACKUP (VST), GND Circuit Inspection
      • USB VBUS, USB DATA+, USB DATA-, USB GND Open Wire Inspection
      • Infotainment Control Unit Inspection
      • Telematics Control Unit Inspection
  • Audio and Visual System Symptom Troubleshooting - Audio remote-HFL Switch Does Not Work Properly (Touchpad Unit Buttons Work)
    • Notes
    • Inspection Area
    • Inspection Outline
    • Related Information
    • Inspection
      • Gauge Control Module Inspection
      • Audio Remote-HFL Switch Inspection
  • Audio and Visual System Symptom Troubleshooting - Audio System Sound Is Weak Or Distorted (Display Is Normal) (With 9 Speakers)
    • Notes
    • Inspection Area
    • Inspection Outline
    • Related Information
    • Inspection
      • Speaker Inspection
      • Power Supply (+B_AUDIO_AMP), GND (PGND) Circuit Inspection
      • Signal (FL17_SPKR+), Signal (FL17_SPKR-) Circuit Inspection
      • Signal (FR17_SPKR+), Signal (FR17_SPKR-) Circuit Inspection
      • Signal (FL9_SPKR+), Signal (FL9_SPKR-) Circuit Inspection
      • Signal (FR9_SPKR+), Signal (FR9_SPKR-) Circuit Inspection
      • Signal (RL_SPKR+), Signal (RL_SPKR-) Circuit Inspection
      • Signal (RR_SPKR+), Signal (RR_SPKR-) Circuit Inspection
      • Signal (SUB_WOOFER+), Signal (SUB_WOOFER-) Circuit Inspection
      • Stereo Amplifier Inspection
  • Audio and Visual System Symptom Troubleshooting - Audio System Sound Is Weak Or Distorted (Display Is Normal) (With 12 Speakers)
    • Notes
    • Inspection Area
    • Inspection Outline
    • Related Information
    • Inspection
      • Speaker Inspection
      • Power Supply (+B_AUDIO_AMP), GND (PGND) Circuit Inspection
      • Signal (FL17_SPKR+), Signal (FL17_SPKR-) Circuit Inspection
      • Signal (FR17_SPKR+), Signal (FR17_SPKR-) Circuit Inspection
      • Signal (FL9_SPKR+), Signal (FL9_SPKR-) Circuit Inspection
      • Signal (FR9_SPKR+), Signal (FR9_SPKR-) Circuit Inspection
      • Signal (FL_TWEETER+), Signal (FL_TWEETER-) Circuit Inspection
      • Signal (FR_TWEETER+), Signal (FR_TWEETER-) Circuit Inspection
      • Signal (FL_OVERHEAD_SPKR+), Signal (FL_OVERHEAD_SPKR-) Circuit Inspection
      • Signal (FR_OVERHEAD_SPKR+), Signal (FR_OVERHEAD_SPKR-) Circuit Inspection
      • Signal (RL_SPKR+), Signal (RL_SPKR-) Circuit Inspection
      • Signal (RR_SPKR+), Signal (RR_SPKR-) Circuit Inspection
      • Signal (CTR_SPKR+), Signal (CTR_SPKR-) Circuit Inspection
      • Signal (SUB_WOOFER+), Signal (SUB_WOOFER-) Circuit Inspection
      • Stereo Amplifier Inspection
  • Audio and Visual System Symptom Troubleshooting - Audio System Sound Is Weak Or Distorted (Display Is Normal) (With 16 Speakers)
    • Notes
    • Inspection Area
    • Inspection Outline
    • Related Information
    • Inspection
      • Speaker Inspection
      • Power Supply (+B_AUDIO_AMP), GND (PGND) Circuit Inspection
      • Signal (FL17_SPKR+), Signal (FL17_SPKR-) Circuit Inspection
      • Signal (FR17_SPKR+), Signal (FR17_SPKR-) Circuit Inspection
      • Signal (FL9_SPKR+), Signal (FL9_SPKR-) Circuit Inspection
      • Signal (FR9_SPKR+), Signal (FR9_SPKR-) Circuit Inspection
      • Signal (FL_TWEETER+), Signal (FL_TWEETER-) Circuit Inspection
      • Signal (FR_TWEETER+), Signal (FR_TWEETER-) Circuit Inspection
      • Signal (FL_OVERHEAD_SPKR+), Signal (FL_OVERHEAD_SPKR-) Circuit Inspection
      • Signal (FR_OVERHEAD_SPKR+), Signal (FR_OVERHEAD_SPKR-) Circuit Inspection
      • Signal (RL_SPKR+), Signal (RL_SPKR-) Circuit Inspection
      • Signal (RR_SPKR+), Signal (RR_SPKR-) Circuit Inspection
      • Signal (RL_OH_SP+), Signal (RL_OH_SP-) Circuit Inspection
      • Signal (RR_OH_SP+), Signal (RR_OH_SP-) Circuit Inspection
      • Signal (SATL_SPKR+), Signal (SATL_SPKR-) Circuit Inspection
      • Signal (SATR_SPKR+), Signal (SATR_SPKR-) Circuit Inspection
      • Signal (CTR_SPKR+), Signal (CTR_SPKR-) Circuit Inspection
      • Signal (SUB_WOOFER+), Signal (SUB_WOOFER-) Circuit Inspection
      • Stereo Amplifier Inspection