Diagnostic Test: Mic Level
- 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.
- Turn the ignition switch to ON (II).
- 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.
- Turn the ignition switch to LOCK (0).
- 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 ).
- 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.
- Disconnect the HFL-navigation voice control switch 5P connector and audio-navigation unit connector D (12P).
- 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
Courtesy 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.
- 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
Courtesy 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 ).
- Disconnect audio-navigation unit connector A (24P).
- 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
Courtesy 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 ).
- 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.
- Clear the hard error code (see HOW TO CLEAR ERROR HISTORY ).
- Turn the ignition switch to LOCK (0), and then back to ON (II).
- 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 ).