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USB device does not function

NOTE:
  • Check the vehicle battery condition first (see BATTERY TEST ).
  • Check the connectors for poor connections or loose terminals.
  • Make sure you have the client's USB device to use for testing.
  • Some music players (connected through the USB port) may not work with all models.
  • Make sure that the music player connected to the USB port works properly.
  • The USB memory used for testing should conform to the USB mass storage class standard.
  • The USB function is not compatible with a USB memory of 128 MB or below.
  • The music must be saved to the player as WMA (Windows Media Audio) files or MP3. MP3 files saved in a variable bit rate are not compatible.
  1. Connect a known-good music player to the USB port.
  2. Turn the ignition switch to ON (II).
  3. Press the AUX button, and check if it changes to USB mode.

    Does it change to the USB mode? 

    YES  -Go to step 4.

    NO  -Go to step 15 15.

  4. Check that the client's USB memory device functions properly when connected to a known-good vehicle.

    Does the music on the USB play? 

    YES  -Go to step 5.

    NO  -The music player is either defective or incompatible.

  5. Return to the client's vehicle with the client's USB and check if NO DATA appears when the music player is connected to the USB port.

    Does NO DATA appear? 

    YES  -Go to step 6.

    NO  -Go to step 11 11.

  6. Check the connectors at USB adapter control unit connector B (5P) and the USB adapter cable and the USB port.

    Are the connectors and terminals connected properly? 

    YES  -Go to step 7.

    NO  -Repair the connection, and recheck.

  7. Disconnect USB adapter control unit connector B (5P).
  8. Check for continuity between USB adapter control unit connector B (5P) terminals and USB port 5P connector terminals according to the table.
    CONTINUITY SPECIFICATIONS

    USB adapter control unit connector USB port connector
    B1 1
    B2 2
    B3 3
    B4 4
    B5 5
    Fig 1: Checking Continuity Between USB Adapter Control Unit Connector B (5P) Terminals
    G07355357Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 2: Checking Continuity Between USB Port 5P Connector Terminals
    G07355358Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Replace the USB adapter control unit (see USB ADAPTER CONTROL UNIT REPLACEMENT ), then recheck.

    NO  -Go to step 9.

  9. Disconnect the USB adapter 5P connector.
  10. Check for continuity between the USB adapter 5P connector and the USB port 5P connector according to the table.
    CONTINUITY SPECIFICATIONS

    USB adapter 5P connector USB port 5P connector
    1 1
    2 2
    3 3
    4 4
    5 5
    Fig 3: Checking Continuity Between USB Adapter 5P Connector
    G07355359Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 4: Checking Continuity Between USB Port 5P Connector
    G07355360Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - There is an open in the wire(s) between the USB adapter control unit and the USB adapter. Replace the affected shielded harness.

    NO  -Replace the USB adapter, then recheck.

  11. Turn on the audio unit, and check for sound in each mode (AM, FM, XM, and CD).

    Is the sound normal? 

    YES  -Go to step 12.

    NO  -Go to NO SOUND IS HEARD FROM THE SPEAKER(S) TROUBLESHOOTING  .

  12. Turn the ignition switch to ON (II).
  13. Disconnect USB adapter control unit connector A (14P) and audio unit connector C (14P).
  14. Check for continuity between USB adapter control unit connector A (14P) and audio unit connector C (14P) according to the table.
    CONTINUITY SPECIFICATIONS

      USB adapter control unit connector Audio unit connector Wire color
    AUDIO R+ A5 C5 GRN
    AUDIO R- A13 C13 BLK
    AUDIO L+ A6 C6 WHT
    AUDIO L- A14 C14 RED
    Fig 5: Checking Continuity Between USB Adapter Control Unit Connector (14P)
    G07355361Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 6: Checking Continuity Between Audio Unit Connector C (14P)
    G07355362Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Replace the USB adapter control unit (see USB ADAPTER CONTROL UNIT REPLACEMENT ).

    NO  -There is an open in the wire(s) between the USB adapter control unit and the audio unit. Replace the affected shielded harness.

  15. Measure the voltage between USB adapter control unit connector A (14P) terminals No. 1 and No. 11.
    Fig 7: Measuring Voltage Between USB Adapter Control Unit Connector (14P) Terminals No. 1 And No. 11
    G07355363Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  -Go to step 16.

    NO  -Go to step 28 28.

  16. Turn the ignition switch to LOCK (0).
  17. Disconnect these items:
    • USB adapter control unit connector A (14P)
    • Navigation display unit 20P connector
    • HandsFreeLink control unit 28P connector
    • AcuraLink control unit (XM receiver) connector A (32P)
    • XM receiver connector A (14P) (with XM)
  18. Check for continuity between USB adapter control unit connector A (14P) and the navigation display unit 20P connector according to the table.
    CONTINUITY SPECIFICATIONS

      USB adapter control unit connector Navigation display unit connector Wire color
    GA-NET BUS + A9 No. 5 RED
    GA-NET BUS- A10 No. 15 GRN
    Fig 8: Checking Continuity Between USB Adapter Control Unit Connector (14P)
    G07355364Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 9: Checking Continuity Between Navigation Display Unit 20P Connector
    G07355365Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Go to step 19.

    NO  -There is an open or short in the wire(s) between the USB adapter control unit and the navigation display unit. Replace the affected shielded harness.

  19. Check for continuity between body ground and USB adapter control unit connector A (14P) terminals No. 9 and No. 10 individually.
    Fig 10: Checking Continuity Between Body Ground And USB Adapter Control Unit Connector (14P) Terminals No. 9 And No. 10
    G07355366Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -There is a short in the wire(s) between USB adapter control unit connector A (14P) and body ground. Replace the affected shielded harness.

    NO  -Go to step 20.

  20. Check for continuity between the terminals of USB adapter control unit connector A (14P) according to the table.
    CONTINUITY SPECIFICATIONS

    From terminal To terminals
    A3 (GRY) A9 (GRN), A10 (RED)
    Fig 11: Checking Continuity Between Terminals Of USB Adapter Control Unit Connector (14P)
    G07355367Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -There is a short in the wire(s) between the USB adapter control unit and the navigation display unit. Replace the affected shielded harness.

    NO  -Go to step 21.

  21. Turn the ignition switch to LOCK (0).
  22. Disconnect USB adapter control unit connector A (14P), and the navigation display unit 20P connector.
  23. Check for continuity between audio unit connector C (14P) and the navigation display unit 20P connector according to the table.
    CONTINUITY SPECIFICATIONS

      Audio unit connector Navigation display unit connector Wire color
    GA-NET BUS + C9 No. 3 GRN
    GA-NET BUS- C10 No. 13 RED
    Fig 12: Checking Continuity Between Audio Unit Connector C (14P)
    G07355368Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 13: Checking Continuity Between Navigation Display Unit 20P Connector
    G07355369Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Go to step 24.

    NO  -There is an open or a short in the wire(s) between the audio unit and the navigation display unit. Replace the affected shielded harness.

  24. Check for continuity between body ground and audio unit connector C (14P) terminals No. 9 and No. 10 individually.
    Fig 14: Checking Continuity Between Body Ground And Audio Unit Connector C (14P) Terminals No. 9 And No. 10
    G07355370Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -There is a short in the wire(s) between audio unit connector C (14P) and body ground. Replace the affected shielded harness.

    NO  -Go to step 25.

  25. Check for continuity between the terminals of audio unit connector C (14P) according to the table.
    CONTINUITY SPECIFICATIONS

    From terminal To terminals
    C3 (GRY) C9 (GRN), C10
    Fig 15: Checking Continuity Between Terminals Of Audio Unit Connector C (14P)
    G07355371Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -There is a short in the wire(s) between the audio unit and the navigation display unit. Replace the affected shielded harness.

    NO  -Go to step 26.

  26. Turn on the audio unit, and check for sound in each mode (AM, FM, XM, and CD).

    Is the sound normal? 

    YES  -Replace the USB adapter control unit (see USB ADAPTER CONTROL UNIT REPLACEMENT ).

    NO  -Replace the audio unit (see SEEK STOP TEST ).

  27. Turn the ignition switch to LOCK (0).
  28. Disconnect USB adapter control unit connector A (14P) and audio unit connector C (14P) [and XM receiver connector A (14P)].

    [] : With XM receiver

  29. Check for continuity between USB adapter control unit connector A (14P) and audio unit connector C (14P) according to the table.
    CONTINUITY SPECIFICATIONS

      USB adapter control unit connector Audio unit connector Wire color
    +B A1 C1 WHT
    SYS ON A2 C2 PUR
    GND A11 C11 BLK
    Fig 16: Checking Continuity Between USB Adapter Control Unit Connector (14P)
    G07355372Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 17: Checking Continuity Between Audio Unit Connector C (14P)
    G07355373Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Go to step 30.

    NO  -Repair an open in the wire(s) between the USB adapter control unit and the audio unit.

  30. Reconnect audio unit connector C (14P).
  31. Turn the ignition switch to ON (II).
  32. Measure the voltage between body ground and USB adapter control unit connector A (14P) terminals No. 1 and No. 2 individually.
    Fig 18: Measuring Voltage Between Body Ground And USB Adapter Control Unit Connector (14P) Terminals No. 1 And No. 2
    G07355374Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  -Go to step 33.

    NO  -Repair an open in the wire(s) between the USB adapter control unit and the audio unit.

  33. Turn the ignition switch to LOCK (0).
  34. Reconnect USB adapter control unit connector A (14P).
  35. Turn the ignition switch to ON (II).
  36. Measure the voltage between USB adapter control unit connector A (14P) terminal No. 11 and body ground.
Fig 19: Measuring Voltage Between USB Adapter Control Unit Connector (14P) Terminal No. 11 And Body Ground
G07355375Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there less than 0.2 V? 

YES  -Check pin fit and connection, then substitute a known-good audio unit (see Audio Unit Removal/Installation ), and recheck. If the symptom/indication goes away, replace the original audio unit (see Audio Unit Removal/Installation ). If the symptom is still present, substitute a known-good USB adapter control unit (see USB ADAPTER CONTROL UNIT REPLACEMENT ), and recheck. If the symptom/indication goes away, replace the original USB adapter control unit (see USB ADAPTER CONTROL UNIT REPLACEMENT ).

NO  -Repair an open in the wire between the USB adapter control unit and the audio unit.

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