Voice control does not work/respond

Diagnostic Test: Mic Level

NOTE:

Check the vehicle battery condition first.
Make sure that the correct DVD color and version are installed.
Check any official Honda service website for more service information about the navigation system.
Check the connector for poor connection or loose terminals.
Before troubleshooting, make sure you have the navigation system anti-theft codes.
After troubleshooting, enter the anti-theft codes for 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 System Manual for a complete list of allowed voice commands for the information being displayed.)
Close the windows, moonroof, 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, the system may misunderstand your command.
Compare the system operation with a known-good vehicle. Have more than one person test the system operation. If the like known-good vehicle performs the same, if is a characteristic of the system.

Turn the ignition switch to ON (II).
Go into the Self-Diagnosis Mode select, Mic Icon Menu, and use the Mic Level test under Functional Setup (see MIC LEVEL ) to check the operation of the navigation Talk and Back buttons.
Are the navigation TALK and BACK buttons operational?

YES -step 10

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-voice control switch.
Disconnect the HFL-voice control switch 5P connector and navigation unit connector D (12P).
Check for continuity between body ground and navigation unit connector D (12P) terminal No. 1.

Fig 1: Checking Continuity Between Body Ground And Navigation Unit Connector D (12P) Terminal No. 1
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair short to body ground in the wire between the navigation unit and the voice control switch, or replace the cable reel.

NO -Go to step 7.
Check for continuity between navigation unit connector D (12P) terminal No. 1 and HFL-voice control switch 5P connector terminal No. 2.

Fig 2: Checking Continuity Between Navigation Unit Connector D (12P) Terminal And HFL-Voice Control Switch 5P Connector Terminal
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 8.

NO -Repair open in the wire between the navigation unit and the HFL-voice control switch, or replace the cable reel.
Disconnect navigation unit connector A (24P).
Check for continuity between navigation unit connector A (24P) terminal No. 5 and HFL-voice control switch 5P connector terminal No. 4.

Fig 3: Checking Continuity Between Navigation Unit Connector A (24P) Terminal And HFL-Voice Control Switch 5P Connector Terminal
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

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

NO -Repair open in the wire between navigation unit and voice control switch, or replace the cable reel.
Use the Mic Level diagnostic under Functional Setup (see MIC LEVEL ) to check the operation of the microphone.
Is the microphone operational?

YES -Check the operation of the voice control system (seethe Navigation System Manual).

NO -Go to step 11.
Check the HFL DTCs (see HOW TO CHECK FOR DTCS WITH THE HDS ).
Are there any DTCs indicated?

YES -Repair the indicated DTCs.

NO -Substitute a known-good HFL-navigation microphone (see HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION ), then reconnect all of the connectors and recheck. If the symptom/indication goes away, replace the original microphone. If the symptom/indication is still present, replace the navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ).