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Diagnostic Test: Mic Level

NOTE:
  • Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
  • Check the connector for poor connection or loose terminals.
  • Make sure that the correct navigation DVD color and version are installed.
  • Check any official Honda service website for more information about the navigation system.
  • Before assuming that a voice complaint is hardware related, ensure that the voice control system is being operated correctly.
    • Make sure you are on the correct screen when trying to issue a voice command. For instance, the command "Find the nearest Italian Restaurant" only works on a Map screen. (See the navigation manual for a complete list of allowed voice commands for the information being displayed.)
    • Close the windows, and doors.
    • Set the fan speed to low (1 or 2).
    • Adjust the air flow from the air conditioning vents so that they do not blow against the microphone on the ceiling.
    • Pause after pressing the navigation TALK button, then give a voice command clearly in a natural speaking voice. If the system cannot recognize your command, speak louder.
    • If the microphone picks up voices other than yours, the system may not interpret your voice commands correctly.
    • If you speak a command with something in your mouth, or your voice is too husky, or high pitched, the system may misunderstand your command.
  • Check for a loose microphone on the ceiling; if it's loose, tighten it.
  • Before troubleshooting, make sure you have the anti-theft code for the audio-navigation unit.
  • After troubleshooting, enter the anti-theft code for the audio-navigation unit.
  • Determine if the problem only happens to one person, or everyone who uses the system.
  • If the system only has a problem with one person's voice, this should be considered a system limitation.
  1. Turn the ignition switch to ON (II).
  2. Go into the System Diagnostic Mode, and select Mic Icon Menu, and use the Mic Level test under Functional Setup (see FUNCTIONAL SETUP  ) to check the operation of the navigation TALK and navigation BACK buttons.

    Are the navigation TALK and navigation BACK buttons operational? 

    YES  -Go to step  11.

    NO  -Go to step  3.

  3. Turn the ignition switch to LOCK (0).
  4. Do the Voice Control Switch Test (see VOICE CONTROL SWITCH TEST  ).

    Is the voice control switch OK? 

    YES  -Go to step  5.

    NO  -Replace the HFL-navigation voice control switch (see VOICE CONTROL SWITCH TEST  ).

  5. Remove the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION  ).
    NOTE:
    • Eject all the discs before removing the audio-navigation unit to prevent damaging the CD player's load mechanism.
    • Remove the PC card before removing the audio-navigation unit.
  6. Disconnect the HFL-navigation voice control switch 5P connector and audio-navigation unit connector D (12P).
  7. Check for continuity between audio-navigation unit connector D (12P) terminal No. 6 and body ground.
    Fig 1: Checking Continuity Between Audio-Navigation Unit Connector D (12P) Terminal No. 6 And Body Ground
    G06954458Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Repair a short to body ground in the wire between the audio-navigation unit and the HFL-navigation voice control switch, or replace the cable reel (see CABLE REEL REPLACEMENT ).

    NO  -Go to step  8.

  8. Check for continuity between audio-navigation unit connector D (12P) terminal No. 6 and HFL-navigation voice control switch 5P connector terminal No. 4.
    Fig 2: Checking Continuity Between Audio-Navigation Unit Connector D (12P) Terminal No. 6 And HFL-Navigation Voice Control Switch 5P Connector Terminal No. 4
    G06954459Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Go to step  9.

    NO  -Repair an open in the wire between the audio-navigation unit and the HFL-navigation voice control switch, or replace the cable reel (see CABLE REEL REPLACEMENT ).

  9. Disconnect audio-navigation unit connector A (24P).
  10. Check for continuity between audio-navigation unit connector A (24P) terminal No. 11 and HFL-navigation voice control switch 5P connector terminal No. 2.
    Fig 3: Checking Continuity Between Audio-Navigation Unit Connector A (24P) Terminal No. 11 And HFL-Navigation Voice Control Switch 5P Connector Terminal No. 2
    G06954460Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION  ).

    NO  -Repair an open in the wire between the audio-navigation unit and the HFL-navigation voice control switch, or replace the cable reel (see CABLE REEL REPLACEMENT ).

  11. Use the Mic Level diagnostic under Functional Setup (see FUNCTIONAL SETUP  ) to check the operation of the microphone.

    Is the microphone operational? 

    YES  -Check the operation of the voice control system (see the navigation manual).

    NO  -Go to step  12.

  12. Clear the hard error code (see HOW TO CLEAR ERROR HISTORY  ).
  13. Turn the ignition switch to LOCK (0), and then back to ON (II).
  14. Check for hard error code (see HOW TO CHECK ERROR HISTORY (NAVIGATION DTCS)  ).

    Is DTC 2707 indicated? 

    YES  -Do the DTC 2707 troubleshooting (see DTC 2707: MIC DIAG  ).

    NO  -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION  ).