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Home >> Honda >> 2021 >> Pilot Special Edition, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio System - Symptom Troubleshooting >> Audio System Symptom Troubleshooting >> NO SOUND IS HEARD FROM THE SPEAKER(S) (Display Is Normal) (Without Navigation) (2016 2017 2018)

NO SOUND IS HEARD FROM THE SPEAKER(S) (Display Is Normal) (Without Navigation) (2016 2017 2018)

NOTE: 

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    - 2. Make sure the volume is not set to the MIN level, and check for sound in all modes (AM/FM, USB, AUX, and CD).

    Is there sound in all modes, and is the sound normal?

    YES 

    Intermittent failure, the system is OK at this time.

    NO: No sound is heard in all modes

    The failure is duplicated in all modes, go to step 2.

    NO: No sound is heard in AM/FM mode. (display audio type). Go to:

    AM/FM Radio Display Is Blank Or No Station Information Is Displayed [Without Navigation {Display Audio Type (8-inch Screen)}] (2016 2017 2018) 

    NO: No sound is heard in AM/FM mode. (color audio type) Go to:

    Poor AM Or FM Radio Reception Or Interference [Without Navigation {Color Audio Type (5-inch Screen)}] (2016 2017 2018) 

    NO: No sound is heard in USB mode

    USB Device Does Not Function (With Navigation, With Auto Idle Stop System) (2016 2017 2018) 

    USB Device Does Not Function (With Navigation, Without Auto Idle Stop System) (2016 2017 2018) 

    NO: No sound is heard in AUX mode

    Auxiliary Input Sound Is Low Or Cannot Be Heard (With Navigation) (2016 2017 2018) 

    NO: No sound is heard in CD mode

    Audio Disc Does Not Play 

  2. Speaker visual check

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Check the speaker(s) with no sound for any damage.

    Is there any damage?

    YES 

    Replace the faulty speaker(s) - Refer to:

    Speaker Removal, Installation and Test (2016 2017 2018)

    NO 

    Go to step 3.

  3. Speaker internal resistance check

    -1. Test the speaker(s).

    Test

    Is the speaker(s) OK?

    YES 

    Go to step 4.

    NO 

    Replace the faulty speaker(s) - Refer to:

    Speaker Removal, Installation and Test (2016 2017 2018)

  4. Wire check (FL SP +/-, FR SP +/-, RL SP +/-, RR SP +/-, SUBW +/- lines)

    -1. Disconnect the following connectors.

    Audio unit connector A (24P)
    Audio unit connector E (8P)
    Left tweeter 2P connector
    Right tweeter 2P connector

    - 2. Measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Audio unit connector A (24P) disconnected
      Audio unit connector E (8P) disconnected
      Left tweeter 2P connector: disconnected
      Right tweeter 2P connector: disconnected
    Speaker Test point 1:

    Audio unit connector A (24P) -


    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Test point 2:

    Audio unit connector A (24P) -


    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Resistance
    Left rear door speaker No. 5 No. 6 About 4 Ω
    Right rear door speaker No. 9 No. 10 About 4 Ω
    Driver's door speaker No. 15 No. 16 About 4 Ω
    Front passenger's door speaker No. 19 No. 20 About 4 Ω
    Speaker Test point 1:

    Audio unit connector E (8P)


    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Test point 1:

    Audio unit connector E (8P)


    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Resistance
    Subwoofer No. 5 No. 7 About 2 Ω

    Is the resistance OK?

    YES 

    The SP and SUBW wires are not open and short. Go to step 5.

    NO 

    Repair an open or short in the wire(s) between the audio unit and the speaker(s).

  5. Shorted wire check (FL SP +/-, FR SP +/-, RL SP +/-, RR SP +/-, SUBW +/- lines)

    -1. Disconnect the following connectors.

    Driver's door speaker 2P connector
    Front passenger's door speaker 2P connector
    Left rear door speaker 2P connector
    Right rear door speaker 2P connector
    Subwoofer 2P connector

    - 2. Check for continuity between following test points and body ground individually.

    Test condition Vehicle OFF (LOCK) mode
      Audio unit connector A (24P) disconnected
      Audio unit connector E (8P) disconnected
      Driver's door speaker 2P connector: disconnected
      Front passenger's door speaker 2P connector: disconnected
      Left rear door speaker 2P connector: disconnected
      Right rear door speaker 2P connector: disconnected
      Left tweeter 2P connector: disconnected
      Right tweeter 2P connector: disconnected
      Subwoofer 2P connector: disconnected
    Connector Speaker Terminal

    Audio unit connector A (24P) -


    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Left rear door speaker No. 5
    No. 6
    Right rear door speaker No. 9
    No. 10
    Driver's door speaker, Left tweeter No. 15
    No. 16
    Front passenger's door speaker, Right tweeter No. 19
    No. 20
    Connector Speaker Terminal

    Audio unit connector E (8P) -


    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Subwoofer No. 5
    No. 7

    Is there continuity?

    YES 

    Repair a short to body ground in the wire(s) between the audio unit and the speaker(s).

    NO 

    The SP and SUBW wires are OK. Go to step 6.

  6. Open wire check (FL SP +/- (Tweeter), FR SP +/- (Tweeter) lines)

    -1. Connect terminals A and B with jumper wires.

    Terminal A Audio unit connector A (24P) No. 15
    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Terminal B Audio unit connector A (24P) No. 16
    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Terminal A Audio unit connector A (24P) No. 19
    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .
    Terminal B Audio unit connector A (24P) No. 20
    Refer to:
    Audio Unit Connector For Inputs And Outputs [Display Audio Type (8-inch Screen)] (2016 2017 2018) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2016 2017) or
    Audio Unit Connector For Inputs And Outputs [Color Audio Type (5-inch Screen)] (2018) .

    - 2. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Audio unit connector A (24P) disconnected
      Driver's door speaker 2P connector: disconnected
      Front passenger's door speaker 2P connector: disconnected
      Left tweeter 2P connector: disconnected
      Right tweeter 2P connector: disconnected
      Audio unit connector A (24P) No. 15 and No. 16: jumped
      Audio unit connector A (24P) No. 19 and No. 20: jumped
    Test circuit 1  
    Test point 1 Left tweeter 2P connector No. 1
    Test point 2 Left tweeter 2P connector No. 2
    Test circuit 2  
    Test point 1 Right tweeter 2P connector No. 1
    Test point 2 Right tweeter 2P connector No. 2
    GHH303742Courtesy of HONDA, U.S.A., INC.
    GHH303743Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Replace the audio unit - Refer to:

    Audio Unit Removal and Installation [Display Audio Type (8-inch Screen)] (2016 2017 2018)

    Audio Unit Removal and Installation [Color Audio Type (5-inch Screen)]

    NO 

    Repair an open in the wire(s) between the audio unit and the tweeter.