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Symptom Troubleshooting




Navigation System Symptom Troubleshooting - Navigation cannot control HVAC by voice command

Navigation cannot control HVAC by voice command

NOTE:

- Check the vehicle battery condition first Battery Test.
- Verify that the correct audio-navigation unit is installed for this model. Go into the System Diagnostic Mode, and use the Version.
- Check for B-CAN DTCs and resolve them before troubleshooting.
- Check the connectors for poor connections or loose terminals.
- Check any official Honda service website for more service information about the navigation system.

1. Turn the ignition switch to ON (II).

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

Does the HVAC system turn on by the voice command?

YES -

Intermittent failure, the system is OK at this time.

NO -

Go to step 3.

3. Check for the hard error code.

Are there any navigation DTCs indicated?

YES -

Troubleshoot the indicated navigation DTC(s).

NO -

Go to step 4.

4. Turn the ignition switch to LOCK (0).

5. Disconnect audio-navigation unit connector F (20P) and climate control unit connector A (28P).

6. Check for continuity between audio-navigation unit connector F (20P) terminals No. 5 and No. 16 and front climate control unit connector A (28P) terminals No. 26 and No. 28 respectively.





Is there continuity?

YES -

Go to step 7.

NO -

Repair an open in the wire(s) between the audio-navigation unit and the climate control unit.

7. Substitute a known-good climate control unit Climate Control Unit Removal/Installation (With Climate Control), and recheck.

Does the symptom go away?

YES -

Replace the original climate control unit Climate Control Unit Removal/Installation (With Climate Control).

NO -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.