Navigation System Symptom Troubleshooting - Voice control does not work/respond

NOTE: 

• Check the vehicle 12 volt battery condition first .
• Make sure that the latest navigation software is installed.
• Before assuming that a voice complaint is hardware related, ensure that the voice control system is being operated correctly:
  1. -

     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 Map screen (see the Navigation Manual for a complete list of allowed voice commands for the information being displayed)

  2. -

     Close the windows and moonroof

  3. -

     Pause after pressing the TALK button then give a voice command clearly in a natural speaking voice. If the system cannot recognize your command, speak louder

  4. -

     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

• 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.
• Check the connectors for poor connections or loose terminals.

1. HFL switch operation check

   -1. Turn the vehicle to the ON mode.

   -2. Go into the System Diagnostic Mode, and use the Hard Key to check the HFL-navigation voice control switch .

   Do all the HFL-navigation voice control switch buttons respond?

   YES 

   Go to step 2.

   NO 

   Go to step  11.

2. Microphone operation check

   -1. Go into the System Diagnostic Mode, and use the Mic to check the microphone .

   -2. Press the TALK button, then say "testing" in front of the microphone to check the Mic level.

   Is the microphone level OK?

   YES 

   Go to step 3.

   NO 

   Go to step  4.

3. Problem verification

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

   -2. Pressing the TALK button, then give a voice command "Audio" clearly in a natural speaking voice.

   Does the audio system turn on by the voice command?

   YES 

   Intermittent failure, the system is OK at this time.

   NO 

   Replace the audio-navigation unit .

4. Determine possible failure area (MIC SIG+ line, others)

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

   -2. Disconnect the following connector.

   Front HFL-navigation-ANC/active sound control microphone 8P connector

   -3. Turn the vehicle to the ON mode.

   -4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Front HFL-navigation-ANC/active sound control microphone 8P connector: disconnected
   Test point 1	Front HFL-navigation-ANC/active sound control microphone 8P connector No. 1
   Test point 2	Front HFL-navigation-ANC/active sound control microphone 8P connector No. 4

   Is there about 8.0 V?

   YES 

   Go to step 5.

   NO 

   Go to step  9.

5. Open wire check (MIC SIG+ line)

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

   -2. Disconnect the following connector.

   Audio-navigation unit connector J (28P)

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Front HFL-navigation-ANC/active sound control microphone 8P connector: disconnected
   	Audio-navigation unit connector J (28P): disconnected
   Test point 1	Front HFL-navigation-ANC/active sound control microphone 8P connector No. 2
   Test point 2	Audio-navigation unit connector J (28P) No. 11

   Is there continuity?

   YES 

   The MIC SIG+ wire is not open. Go to step 6.

   NO 

   There is an open in the wire. Replace the affected shielded harness.

6. Shorted wire check (MIC SIG+ line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Front HFL-navigation-ANC/active sound control microphone 8P connector: disconnected
   	Audio-navigation unit connector J (28P): disconnected
   Test point 1	Audio-navigation unit connector J (28P) No. 11
   Test point 2	Body ground

   Is there continuity?

   YES 

   There is a short to body ground in the wire. Replace the affected shielded harness.

   NO 

   The MIC SIG+ wire is not shorted. Go to step 7.

7. Shorted wire check (MIC SIG+ line to MIC GND line, MIC SH line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Front HFL-navigation-ANC/active sound control microphone 8P connector: disconnected
   	Audio-navigation unit connector J (28P): disconnected
   Test circuit 1
   Test point 1	Audio-navigation unit connector J (28P) No. 10
   Test point 2	Audio-navigation unit connector J (28P) No. 11

   Test circuit 2
   Test point 1	Audio-navigation unit connector J (28P) No. 11
   Test point 2	Audio-navigation unit connector J (28P) No. 12

   Is there continuity?

   YES 

   There is a short in the wires. Replace the affected shielded harness.

   NO 

   The MIC SIG+ wire is OK. Go to step 8.

8. Microphone check (substitution)

   -1. Substitute a known-good front HFL-navigation-ANC/active sound control microphone , and recheck.

   Does the symptom go away?

   YES 

   Replace the original front HFL-navigation-ANC/active sound control microphone .

   NO 

   Replace the audio-navigation unit .

9. Determine possible failure area (MIC PWR line, MIC GND line)

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

   Test condition	Vehicle ON mode
   	Front HFL-navigation-ANC/active sound control microphone 8P connector: disconnected
   Test point 1	Front HFL-navigation-ANC/active sound control microphone 8P connector No. 4
   Test point 2	Body ground

   Is there about 8.0 V?

   YES 

   There is an open in the MIC GND wire. Replace the affected shielded harness.

   NO 

   Go to step 10.

10. Open wire check (MIC PWR line)

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

    Test condition	Vehicle ON mode
    	Front HFL-navigation-ANC/active sound control microphone 8P connector: disconnected

    Test point 1	Audio-navigation unit connector J (28P) No. 25
    Test point 2	Body ground

    Is there about 8.0 V?

    YES 

    Repair an open in the wire.

    NO 

    Replace the audio-navigation unit .

11. Determine possible failure area (Audio remote switch circuit, others)

    -1. Go into the System Diagnostic Mode, and use the Hard Key to check the audio remote switch .

    Does all the audio remote switch buttons respond?

    YES 

    Go to step 12.

    NO 

    Go to Audio remote switch does not work properly (audio-navigation unit buttons work) troubleshooting .

12. HFL-navigation voice control switch check

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

    -2. Do the HFL Switch Test .

    Is the HFL-navigation voice control switch OK?

    YES 

    Go to step 13.

    NO 

    Replace the HFL-navigation voice control switch .

13. Determine possible failure area (Audio-navigation unit, others)

    -1. Reconnect the following connector.

    With heated steering wheel: HFL-navigation voice control switch 10P connector

    Without heated steering wheel: HFL-navigation voice control switch 6P connector

    -2. Disconnect the following connectors.

    Audio-navigation unit connector A (24P)

    Audio-navigation unit connector B (20P)

    -3. Measure the resistance between test points 1 and 2 as specified in the table.

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector A (24P): disconnected
    	Audio-navigation unit connector B (20P): disconnected
    Test point 1	Audio-navigation unit connector A (24P) No. 11
    Test point 2	Audio-navigation unit connector B (20P) No. 12

    Button held down	HANG-UP/BACK	PICK-UP	TALK	No button pressed
    Resistance	About 47 Ω	About 222 Ω	About 2.25 kΩ	About 10 kΩ

    Is the resistance OK?

    YES 

    Go to step 14.

    NO 

    Go to step  15.

14. Audio-navigation unit check (HFT/NAVI REM line)

    -1. Disconnect the following connector.

    With heated steering wheel: HFL-navigation voice control switch 10P connector

    Without heated steering wheel: HFL-navigation voice control switch 6P connector

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

    Test condition	Vehicle OFF (LOCK) mode
    	With heated steering wheel: HFL-navigation voice control switch 10P connector: disconnected Without heated steering wheel: HFL-navigation voice control switch 6P connector: disconnected
    	Audio-navigation unit connector A (24P): disconnected Audio-navigation unit connector B (20P): disconnected
    Test point 1	Audio-navigation unit connector B (20P) No. 12
    Test point 2	Body ground

    Is there continuity?

    YES 

    Repair a short to body ground in the wire. If the wire is OK, replace the cable reel .

    NO 

    Replace the audio-navigation unit .

15. Open wire check (HFT/NAVI REM line)

    -1. Disconnect the following connector.

    With heated steering wheel: HFL-navigation voice control switch 10P connector

    Without heated steering wheel: HFL-navigation voice control switch 6P connector

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

    With heated steering wheel 

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector A (24P): disconnected Audio-navigation unit connector B (20P): disconnected
    	HFL-navigation voice control switch 10P connector: disconnected
    Test point 1	Audio-navigation unit connector B (20P) No. 12
    Test point 2	HFL-navigation voice control switch 10P connector (female terminals) No. 7:

    Courtesy of HONDA, U.S.A., INC.

    Without heated steering wheel 

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector A (24P): disconnected Audio-navigation unit connector B (20P): disconnected
    	HFL-navigation voice control switch 6P connector: disconnected
    Test point 1	Audio-navigation unit connector B (20P) No. 12
    Test point 2	HFL-navigation voice control switch 6P connector (female terminals) No. 3:

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The HFT/NAVI REM wire is OK. Go to step 16.

    NO 

    Repair an open in the wire. If the wire is OK, replace the cable reel .

16. Open wire check (HFT/HSW GND line)

    -1. Disconnect the following connector.

    Audio remote switch 12P connector

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

    With heated steering wheel 

    Test condition	Vehicle OFF (LOCK) mode
    	Audio remote switch 12P connector: disconnected
    	HFL-navigation voice control switch 10P connector: disconnected
    Test point 1	Audio remote switch 12P connector (female terminals) No. 4:
    Test point 2	HFL-navigation voice control switch 10P connector (female terminals) No. 2:

    Courtesy of HONDA, U.S.A., INC.

    Courtesy of HONDA, U.S.A., INC.

    With heated steering wheel 

    Test condition	Vehicle OFF (LOCK) mode
    	Audio remote switch 12P connector: disconnected

    	HFL-navigation voice control switch 6P connector: disconnected
    Test point 1	Audio remote switch 12P connector (female terminals) No. 4:
    Test point 2	HFL-navigation voice control switch 6P connector (female terminals) No. 4:

    Courtesy of HONDA, U.S.A., INC.

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Replace the audio remote switch .

    NO 

    Repair an open in the wire.