Symptom Troubleshooting
Symptom Troubleshooting: Voice control does not work/respond
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.
- 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 Map screen. (See the Navigation System manual for a complete list of allowed voice commands for the information being displayed).
- Close the windows and sunroof.
- 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 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 the connectors for poor connections or loose terminals.
- Check for a loose roof console microphone; if it's loose, tighten it.
- Before troubleshooting, make sure you have anti-theft codes for the audio system and the navigation system.
- After troubleshooting, enter the anti-theft codes for the audio system and the navigation system.
- 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. Measure the voltage between body ground and the roof console 28P connector terminals No. 4 and No. 28 individually.
Is there battery voltage?
YES - Go to step 3.
NO - If the +B wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the roof console 28P connector. If the ACC wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the roof console 28P connector.
3. Measure the voltage between roof console 28P connector terminal No. 13 and body ground.
Is there less than 0.1 V?
YES - Go to step 4.
NO - Repair an open or high resistance in the wire between the roof console and body ground (G601).
4. Go into the Self-Diagnosis Mode select MIC Icon Menu, and use the MIC Level test under Functional Set-up Navigation System Diagnostic Mode to check the operation of the Talk and Back buttons.
Are the navigation TALK and BACK buttons operational?
YES - Go to step 5.
NO - Check for an open or short to ground on navigation unit connector C (16P) No. 12 terminal.
5. Use the MIC Level diagnostic under Functional Set-up Navigation System Diagnostic Mode to check the operation of the microphone.
Is the microphone operational?
YES - Check the operation of the voice control system (see the Navigation System Manual).
NO - Go to step 6.
6. Turn the ignition switch to LOCK (0).
7. Disconnect the HFL control unit.
8. Disconnect the navigation unit connector C (16P).
9. Check for continuity between navigation unit connector C (16P) terminal No. 8 and No. 16 and body ground.
Is there continuity?
YES - Replace the affected shielded harness.
NO - Go to step 10.
10. Check for continuity between navigation unit connector C (16P) terminals No. 8 and No. 16.
Is there continuity?
YES - Replace the affected shielded harness.
NO - Go to step 11.
11. Check for continuity between navigation unit connector C terminals No. 8 and No 15, and between terminal No. 8 and No. 16.
Is there continuity?
YES - Replace the affected shielded harness.
NO - Substitute known-good components in this order until the problem goes away:
- Microphone
- HFL unit
- Navigation Unit
